Release version: 0.31.0

- BouncyCastle 1.68
- asn-one 0.5.0
- slf4j-api 1.7.30

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+* @hierynomus
+

.github/workflows/gradle.yml

@@ -0,0 +1,55 @@
+# This workflow will build a Java project with Gradle
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Build SSHJ
+
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  java12:
+    name: Build with Java 12
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 12
+      uses: actions/setup-java@v1
+      with:
+        java-version: 12
+    - name: Grant execute permission for gradlew
+      run: chmod +x gradlew
+    - name: Build with Gradle
+      run: ./gradlew check
+  # java10:
+  #   name: Build with Java 10
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - uses: actions/checkout@v2
+  #   - name: Set up JDK 10
+  #     uses: actions/setup-java@v1
+  #     with:
+  #       java-version: 10
+  #   - name: Grant execute permission for gradlew
+  #     run: chmod +x gradlew
+  #   - name: Build with Gradle
+  #     run: ./gradlew check -xanimalsnifferMain -xanimalsnifferTest
+
+  integration:
+    name: Integration test
+    needs: [java12]
+    runs-on: [ubuntu-latest]
+    steps:
+      - uses: actions/checkout@v2
+      - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/*
+      - uses: actions/setup-java@v1
+        with:
+          java-version: 12
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Build with Gradle
+        run: ./gradlew integrationTest
+

.gitignore

@@ -13,6 +13,7 @@
 out/
 target/
 classes/
+bin/
 build/
 docs/
 .gradle/
@@ -20,3 +21,6 @@ sshj.jar
 
 # MacOS X
 .DS_Store
+
+# VSCode
+.metals/

.java-version

@@ -0,0 +1 @@
+11.0

.travis.yml

@@ -1,30 +0,0 @@
-language: java
-dist: trusty
-sudo: required
-
-services:
-  - docker
-
-jdk:
-  - oraclejdk8
-  - openjdk8
-  - oraclejdk9
-
-before_cache:
-  - rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
-  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
-
-cache:
-  directories:
-  - $HOME/.gradle/caches/
-  - $HOME/.gradle/wrapper/
-
-before_install:
-  - pip install --user codecov
-
-script:
-  - ./gradlew check
-  - ./gradlew integrationTest
-
-after_success:
-- codecov

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "java.checkstyle.configuration": "${workspaceFolder}/gradle/config/checkstyle/checkstyle.xml",
+    "files.watcherExclude": {
+        "**/target": true
+    }
+}

NOTICE

@@ -15,7 +15,7 @@ The Apache Software Foundation (http://www.apache.org/):
    ==  in this case for the SSHD distribution.                            ==
    =========================================================================
 
-   This product contains software developped by JCraft,Inc. and subject to
+   This product contains software developed by JCraft,Inc. and subject to
    the following license:
 
 Copyright (c) 2002,2003,2004,2005,2006,2007,2008 Atsuhiko Yamanaka, JCraft,Inc.

README.adoc

@@ -1,7 +1,7 @@
 = sshj - SSHv2 library for Java
 Jeroen van Erp
 :sshj_groupid: com.hierynomus
-:sshj_version: 0.26.0
+:sshj_version: 0.31.0
 :source-highlighter: pygments
 
 image:https://api.bintray.com/packages/hierynomus/maven/sshj/images/download.svg[link="https://bintray.com/hierynomus/maven/sshj/_latestVersion"]
@@ -10,7 +10,6 @@ image:https://api.codacy.com/project/badge/Grade/14a0a316bb9149739b5ea26dbfa8da8
 image:https://codecov.io/gh/hierynomus/sshj/branch/master/graph/badge.svg["codecov", link="https://codecov.io/gh/hierynomus/sshj"]
 image:http://www.javadoc.io/badge/com.hierynomus/sshj.svg?color=blue["JavaDocs", link="http://www.javadoc.io/doc/com.hierynomus/sshj"]
 image:https://maven-badges.herokuapp.com/maven-central/com.hierynomus/sshj/badge.svg["Maven Central",link="https://maven-badges.herokuapp.com/maven-central/com.hierynomus/sshj"]
-image:https://javadoc-emblem.rhcloud.com/doc/com.hierynomus/sshj/badge.svg["Javadoc",link="http://www.javadoc.io/doc/com.hierynomus/sshj"]
 
 To get started, have a look at one of the examples. Hopefully you will find the API pleasant to work with :)
 
@@ -65,7 +64,7 @@ In the `examples` directory, there is a separate Maven project that shows how th
 Implementations / adapters for the following algorithms are included:
 
 ciphers::
-  `aes{128,192,256}-{cbc,ctr}`, `blowfish-{cbc,ctr}`, `3des-{cbc,ctr}`, `twofish{128,192,256}-{cbc,ctr}`, `twofish-cbc`, `serpent{128,192,256}-{cbc,ctr}`, `idea-{cbc,ctr}`, `cast128-{cbc,ctr}`, `arcfour`, `arcfour{128,256}`
+  `aes{128,192,256}-{cbc,ctr}`, `aes{128,256}-gcm@openssh.com`, `blowfish-{cbc,ctr}`, `3des-{cbc,ctr}`, `twofish{128,192,256}-{cbc,ctr}`, `twofish-cbc`, `serpent{128,192,256}-{cbc,ctr}`, `idea-{cbc,ctr}`, `cast128-{cbc,ctr}`, `arcfour`, `arcfour{128,256}`
   SSHJ also supports the following extended (non official) ciphers: `camellia{128,192,256}-{cbc,ctr}`, `camellia{128,192,256}-{cbc,ctr}@openssh.org`
 
 key exchange::
@@ -73,15 +72,17 @@ key exchange::
   `diffie-hellman-group14-sha256`, `diffie-hellman-group15-sha512`, `diffie-hellman-group16-sha512`, `diffie-hellman-group17-sha512`, `diffie-hellman-group18-sha512`
   `diffie-hellman-group-exchange-sha1`, `diffie-hellman-group-exchange-sha256`,
   `ecdh-sha2-nistp256`, `ecdh-sha2-nistp384`, `ecdh-sha2-nistp521`, `curve25519-sha256@libssh.org`
-  SSHJ also supports the following extended (non official) key exchange algoriths:
+
+  SSHJ also supports the following extended (non official) key exchange algorithms:
   `diffie-hellman-group14-sha256@ssh.com`, `diffie-hellman-group15-sha256`, `diffie-hellman-group15-sha256@ssh.com`, `diffie-hellman-group15-sha384@ssh.com`,
   `diffie-hellman-group16-sha256`, `diffie-hellman-group16-sha384@ssh.com`, `diffie-hellman-group16-sha512@ssh.com`, `diffie-hellman-group18-sha512@ssh.com`
 
 signatures::
-  `ssh-rsa`, `ssh-dss`, `ecdsa-sha2-nistp256`, `ecdsa-sha2-nistp384`, `ecdsa-sha2-nistp521`, `ssh-ed25519`
+  `ssh-rsa`, `ssh-dss`, `ecdsa-sha2-nistp256`, `ecdsa-sha2-nistp384`, `ecdsa-sha2-nistp521`, `ssh-ed25519`, `ssh-rsa2-256`, `ssh-rsa2-512`
 
 mac::
-  `hmac-md5`, `hmac-md5-96`, `hmac-sha1`, `hmac-sha1-96`, `hmac-sha2-256`, `hmac-sha2-512`, `hmac-ripemd160`
+  `hmac-md5`, `hmac-md5-96`, `hmac-sha1`, `hmac-sha1-96`, `hmac-sha2-256`, `hmac-sha2-512`, `hmac-ripemd160`, `hmac-ripemd160@openssh.com`
+  `hmac-md5-etm@openssh.com`, `hmac-md5-96-etm@openssh.com`, `hmac-sha1-etm@openssh.com`, `hmac-sha1-96-etm@openssh.com`, `hmac-sha2-256-etm@openssh.com`, `hmac-sha2-512-etm@openssh.com`, `hmac-ripemd160-etm@openssh.com`
 
 compression::
   `zlib` and `zlib@openssh.com` (delayed zlib)
@@ -100,43 +101,86 @@ Java 6+. http://www.slf4j.org/download.html[slf4j] is required. http://www.bounc
 == Reporting bugs
 Issue tracker: https://github.com/hierynomus/sshj/issues
 
-== Discussion
-Google Group: http://groups.google.com/group/sshj-users
-
 == Contributing
 Fork away!
 
 == Release history
-SSHJ 0.24.0 (2018-??-??)::
+SSHJ 0.31.0 (2021-02-08)::
+* Bump dependencies (asn-one 0.5.0, BouncyCastle 1.68, slf4j-api 1.7.30)
+* Merged https://github.com/hierynomus/sshj/pull/660[#660]: Support ED25519 and ECDSA keys in PuTTY format
+* Merged https://github.com/hierynomus/sshj/pull/655[#655]: Bump BouncyCastle due to CVE
+* Merged https://github.com/hierynomus/sshj/pull/653[#653]: Make Parameters class useable as HashMap key
+* Merged https://github.com/hierynomus/sshj/pull/647[#647]: Reduce log level for identification parser
+* Merged https://github.com/hierynomus/sshj/pull/630[#630]: Add support for `aes128-gcm@openssh.com` and `aes256-gcm@openssh.com` ciphers
+* Merged https://github.com/hierynomus/sshj/pull/636[#636]: Improved Android compatibility
+* Merged https://github.com/hierynomus/sshj/pull/627[#627]: Prevent key leakage
+SSHJ 0.30.0 (2020-08-17)::
+* **BREAKING CHANGE**: Removed `setSignatureFactories` and `getSignatureFactories` from the Config and switched them for `getKeyAlgorithms` and `setKeyAlgorithms`
+* Fixed https://github.com/hierynomus/sshj/pull/588[#588]: Add support for `ssh-rsa2-256` and `ssh-rsa2-512` signatures
+* Merged https://github.com/hierynomus/sshj/pull/579[#579]: Fix NPE in OpenSSHKnownHosts
+* Merged https://github.com/hierynomus/sshj/pull/587[#587]: Add passwordfinder retry for OpenSSHKeyV1KeyFile
+* Merged https://github.com/hierynomus/sshj/pull/586[#586]: Make KeyType compatible with Android Store
+* Merged  https://github.com/hierynomus/sshj/pull/593[#593]: Change `UserAuth.getAllowedMethods()` to Collection return type
+* Merged  https://github.com/hierynomus/sshj/pull/595[#595]: Allow reading arbitrary length keys
+* Merged  https://github.com/hierynomus/sshj/pull/591[#591]: Allow to query SFTP extensions
+* Merged  https://github.com/hierynomus/sshj/pull/603[#603]: Add method to create Stateful SFTP client
+* Merged  https://github.com/hierynomus/sshj/pull/605[#605]: Use Daemon threads to avoid blocking JVM shutdown
+* Merged  https://github.com/hierynomus/sshj/pull/606[#606]: Always use the JCERandom RNG by default
+* Merged  https://github.com/hierynomus/sshj/pull/609[#609]: Clear passphrase after use to prevent security issues
+* Merged  https://github.com/hierynomus/sshj/pull/618[#618]: Fix localport of DirectConnection for use with OpenSSH > 8.0
+* Merged  https://github.com/hierynomus/sshj/pull/619[#619]: Upgraded BouncyCastle to 1.66
+* Merged  https://github.com/hierynomus/sshj/pull/622[#622]: Send 'ext-info-c' with KEX algorithms
+* Merged  https://github.com/hierynomus/sshj/pull/623[#623]: Fix transport encoding of `nistp521` signatures
+* Merged  https://github.com/hierynomus/sshj/pull/607[#607]: Fix mathing pubkeys to key algorithms
+* Merged  https://github.com/hierynomus/sshj/pull/602[#602]: Fix RSA certificate key determination
+SSHJ 0.27.0 (2019-01-24)::
+* Fixed https://github.com/hierynomus/sshj/issues/415[#415]: Fixed wrongly prefixed '/' to path in SFTPClient.mkdirs
+* Added support for ETM (Encrypt-then-Mac) MAC algorithms.
+* Fixed https://github.com/hierynomus/sshj/issues/454[#454]: Added missing capacity check for Buffer.putUint64
+* Fixed https://github.com/hierynomus/sshj/issues/466[#466]: Added lock timeout for remote action to prevent hanging
+* Fixed https://github.com/hierynomus/sshj/issues/470[#470]: Made EdDSA the default (first) signature factory
+* Fixed https://github.com/hierynomus/sshj/issues/467[#467]: Added AES256-CBC as cipher mode in openssh-key-v1 support
+* Fixed https://github.com/hierynomus/sshj/issues/464[#464]: Enabled curve25519-sha256@openssh.org in DefaultConfig
+* Fixed https://github.com/hierynomus/sshj/issues/472[#472]: Handle server initiated global requests
+* Fixed https://github.com/hierynomus/sshj/issues/485[#485]: Added support for all keytypes to openssh-key-v1 keyfiles.
+SSHJ 0.26.0 (2018-07-24)::
+* Fixed https://github.com/hierynomus/sshj/issues/413[#413]: Use UTF-8 for PrivateKeyFileResource
+* Fixed https://github.com/hierynomus/sshj/issues/427[#427]: Support encrypted ed25519 openssh-key-v1 files
+* Upgraded BouncyCastle to 1.60
+* Added support for hmac-ripemd160@openssh.com MAC
+SSHJ 0.24.0 (2018-04-04)::
 * Added support for hmac-ripemd160
-
+* Fixed https://github.com/hierynomus/sshj/issues/382[#382]: Fixed escaping in WildcardHostmatcher
+* Added integration testsuite using Docker against OpenSSH
+* Fixed https://github.com/hierynomus/sshj/issues/187[#187]: Fixed length bug in Buffer.putString
+* Fixed https://github.com/hierynomus/sshj/issues/405[#405]: Continue host verification if first hostkey does not match.
 SSHJ 0.23.0 (2017-10-13)::
-* Merged https://github.com/hierynomus/sshj/pulls/372[#372]: Upgrade to 'net.i2p.crypto:eddsa:0.2.0'
+* Merged https://github.com/hierynomus/sshj/pull/372[#372]: Upgrade to 'net.i2p.crypto:eddsa:0.2.0'
 * Fixed https://github.com/hierynomus/sshj/issues/355[#355] and https://github.com/hierynomus/sshj/issues/354[#354]: Correctly decode signature bytes
 * Fixed https://github.com/hierynomus/sshj/issues/365[#365]: Added support for new-style OpenSSH fingerprints of server keys
 * Fixed https://github.com/hierynomus/sshj/issues/356[#356]: Fixed key type detection for ECDSA public keys
 * Made SSHJ Java9 compatible
 SSHJ 0.22.0 (2017-08-24)::
-* Fixed https://github.com/hierynomus/sshj/pulls/341[#341]: Fixed path walking during recursive copy
-* Merged https://github.com/hierynomus/sshj/pulls/338[#338]: Added ConsolePasswordFinder to read password from stdin
-* Merged https://github.com/hierynomus/sshj/pulls/336[#336]: Added support for ecdsa-sha2-nistp384 and ecdsa-sha2-nistp521 signatures
+* Fixed https://github.com/hierynomus/sshj/pull/341[#341]: Fixed path walking during recursive copy
+* Merged https://github.com/hierynomus/sshj/pull/338[#338]: Added ConsolePasswordFinder to read password from stdin
+* Merged https://github.com/hierynomus/sshj/pull/336[#336]: Added support for ecdsa-sha2-nistp384 and ecdsa-sha2-nistp521 signatures
 * Fixed https://github.com/hierynomus/sshj/issues/331[#331]: Added support for wildcards in known_hosts file
 SSHJ 0.21.1 (2017-04-25)::
-* Merged https://github.com/hierynomus/sshj/pulls/322[#322]: Fix regression from 40f956b (invalid length parameter on outputstream)
+* Merged https://github.com/hierynomus/sshj/pull/322[#322]: Fix regression from 40f956b (invalid length parameter on outputstream)
 SSHJ 0.21.0 (2017-04-14)::
-* Merged https://github.com/hierynomus/sshj/pulls/319[#319]: Added support for `ssh-rsa-cert-v01@openssh.com` and `ssh-dsa-cert-v01@openssh.com` certificate key files
+* Merged https://github.com/hierynomus/sshj/pull/319[#319]: Added support for `ssh-rsa-cert-v01@openssh.com` and `ssh-dsa-cert-v01@openssh.com` certificate key files
 * Upgraded Gradle to 3.4.1
-* Merged https://github.com/hierynomus/sshj/pulls/305[#305]: Added support for custom string encoding
+* Merged https://github.com/hierynomus/sshj/pull/305[#305]: Added support for custom string encoding
 * Fixed https://github.com/hierynomus/sshj/issues/312[#312]: Upgraded BouncyCastle to 1.56
 SSHJ 0.20.0 (2017-02-09)::
-* Merged https://github.com/hierynomus/sshj/pulls/294[#294]: Reference ED25519 by constant instead of name
-* Merged https://github.com/hierynomus/sshj/pulls/293[#293], https://github.com/hierynomus/sshj/pulls/295[#295] and https://github.com/hierynomus/sshj/pulls/301[#301]: Fixed OSGi packaging
+* Merged https://github.com/hierynomus/sshj/pull/294[#294]: Reference ED25519 by constant instead of name
+* Merged https://github.com/hierynomus/sshj/pull/293[#293], https://github.com/hierynomus/sshj/pull/295[#295] and https://github.com/hierynomus/sshj/pull/301[#301]: Fixed OSGi packaging
 * Added new Diffie Hellman groups 15-18 for stronger KeyExchange algorithms
 SSHJ 0.19.1 (2016-12-30)::
 * Enabled PKCS5 Key files in DefaultConfig
-* Merged https://github.com/hierynomus/sshj/pulls/291[#291]: Fixed sshj.properties loading and chained exception messages
-* Merged https://github.com/hierynomus/sshj/pulls/284[#284]: Correctly catch interrupt in keepalive thread
-* Fixed https://github.com/hierynomus/sshj/issues/292[#292]: Pass the configured RandomFactory to Diffie Hellmann KEX
+* Merged https://github.com/hierynomus/sshj/pull/291[#291]: Fixed sshj.properties loading and chained exception messages
+* Merged https://github.com/hierynomus/sshj/pull/284[#284]: Correctly catch interrupt in keepalive thread
+* Fixed https://github.com/hierynomus/sshj/issues/292[#292]: Pass the configured RandomFactory to Diffie Hellman KEX
 * Fixed https://github.com/hierynomus/sshj/issues/256[#256]: SSHJ now builds if no git repository present
 * LocalPortForwarder now correctly interrupts its own thread on close()
 SSHJ 0.19.0 (2016-11-25)::
@@ -145,11 +189,11 @@ SSHJ 0.19.0 (2016-11-25)::
 SSHJ 0.18.0 (2016-09-30)::
 * Fixed Android compatibility
 * Upgrade to Gradle 3.0
-* Merged https://github.com/hierynomus/sshj/pulls/271[#271]: Load known_hosts without requiring BouncyCastle
-* Merged https://github.com/hierynomus/sshj/pulls/269[#269]: Brought back Java6 support by popular demand
-* Merged https://github.com/hierynomus/sshj/pulls/267[#267]: Added support for per connection logging (Fixes https://github.com/hierynomus/sshj/issues/264[#264])
-* Merged https://github.com/hierynomus/sshj/pulls/262[#262], https://github.com/hierynomus/sshj/pulls/265[#265] and https://github.com/hierynomus/sshj/pulls/266[#266]: Added PKCS5 key file support
-* Fixed toString of sftp FileAttributes (Fixes https://github.com/hierynomus/sshj/pulls/258[#258])
+* Merged https://github.com/hierynomus/sshj/pull/271[#271]: Load known_hosts without requiring BouncyCastle
+* Merged https://github.com/hierynomus/sshj/pull/269[#269]: Brought back Java6 support by popular demand
+* Merged https://github.com/hierynomus/sshj/pull/267[#267]: Added support for per connection logging (Fixes https://github.com/hierynomus/sshj/issues/264[#264])
+* Merged https://github.com/hierynomus/sshj/pull/262[#262], https://github.com/hierynomus/sshj/pull/265[#265] and https://github.com/hierynomus/sshj/pull/266[#266]: Added PKCS5 key file support
+* Fixed toString of sftp FileAttributes (Fixes https://github.com/hierynomus/sshj/pull/258[#258])
 * Fixed https://github.com/hierynomus/sshj/issues/255[#255]: No longer depending on 'privately marked' classes in `net.i2p.crypto.eddsa.math` package, fixes OSGI dependencies
 SSHJ 0.17.2 (2016-07-07)::
 * Treating SSH Server identification line ending in '\n' instead of '\r\n' leniently.
@@ -159,7 +203,7 @@ SSHJ 0.17.0 (2016-07-05)::
 * *Introduced breaking change in SFTP copy behaviour*: Previously an SFTP copy operation would behave differently if both source and target were folders with different names.
   In this case instead of copying the contents of the source into the target directory, the directory itself was copied as a sub directory of the target directory.
   This behaviour has been removed in favour of the default behaviour which is to copy the contents of the source into the target. Bringing the behaviour in line with how SCP works.
-* Fixed https://github.com/hierynomus/sshj/issues/252[#252] (via: https://github.com/hierynomus/sshj/pulls/253[#253]): Same name subdirs are no longer merged by accident
+* Fixed https://github.com/hierynomus/sshj/issues/252[#252] (via: https://github.com/hierynomus/sshj/pull/253[#253]): Same name subdirs are no longer merged by accident
 SSHJ 0.16.0 (2016-04-11)::
 * Fixed https://github.com/hierynomus/sshj/issues/239[#239]: Remote port forwards did not work if you used the empty string as address, or a catch-all address.
 * Fixed https://github.com/hierynomus/sshj/issues/242[#242]: Added OSGI headers to sources jar manifest

build-publishing.gradle

@@ -17,7 +17,7 @@ configurations {
   pom
 }
 
-def bouncycastleVersion = "1.50"
+def bouncycastleVersion = "1.67"
 
 dependencies {
   compile "org.slf4j:slf4j-api:1.7.7"

build.gradle

@@ -6,16 +6,15 @@ plugins {
   id "java"
   id "groovy"
   id "jacoco"
-  id "osgi"
+  id "com.github.blindpirate.osgi" version '0.0.3'
   id "maven-publish"
-  id 'pl.allegro.tech.build.axion-release' version '1.9.2'
-  id "com.bmuschko.docker-remote-api" version "3.2.1"
+  id 'pl.allegro.tech.build.axion-release' version '1.11.0'
+  id "com.bmuschko.docker-remote-api" version "6.4.0"
   id "com.github.hierynomus.license" version "0.12.1"
-  id "com.jfrog.bintray" version "1.7"
+  id "com.jfrog.bintray" version "1.8.5"
   id 'ru.vyarus.java-lib' version '1.0.5'
   // id 'ru.vyarus.pom' version '1.0.3'
   id 'ru.vyarus.github-info' version '1.1.0'
-  id 'ru.vyarus.animalsniffer' version '1.4.2'
 }
 
 group = "com.hierynomus"
@@ -37,35 +36,31 @@ defaultTasks "build"
 
 repositories {
   mavenCentral()
-  maven {
-    url "https://dl.bintray.com/mockito/maven/"
-  }
 }
 
-sourceCompatibility = 1.6
-targetCompatibility = 1.6
-
 configurations.compile.transitive = false
 
-def bouncycastleVersion = "1.60"
+def bouncycastleVersion = "1.68"
+def sshdVersion = "2.1.0"
 
 dependencies {
-  signature 'org.codehaus.mojo.signature:java16:1.1@signature'
+  implementation "org.slf4j:slf4j-api:1.7.30"
+  implementation "org.bouncycastle:bcprov-jdk15on:$bouncycastleVersion"
+  implementation "org.bouncycastle:bcpkix-jdk15on:$bouncycastleVersion"
+  implementation "com.jcraft:jzlib:1.1.3"
+  implementation "com.hierynomus:asn-one:0.5.0"
 
-  compile "org.slf4j:slf4j-api:1.7.7"
-  compile "org.bouncycastle:bcprov-jdk15on:$bouncycastleVersion"
-  compile "org.bouncycastle:bcpkix-jdk15on:$bouncycastleVersion"
-  compile "com.jcraft:jzlib:1.1.3"
+  implementation "net.i2p.crypto:eddsa:0.3.0"
 
-  compile "net.i2p.crypto:eddsa:0.2.0"
-
-  testCompile "junit:junit:4.11"
-  testCompile 'org.spockframework:spock-core:1.0-groovy-2.4'
-  testCompile "org.mockito:mockito-core:2.9.2"
-  testCompile "org.apache.sshd:sshd-core:1.2.0"
-  testRuntime "ch.qos.logback:logback-classic:1.1.2"
-  testCompile 'org.glassfish.grizzly:grizzly-http-server:2.3.17'
-  testCompile 'org.apache.httpcomponents:httpclient:4.5.2'
+  testImplementation "junit:junit:4.12"
+  testImplementation 'org.spockframework:spock-core:1.3-groovy-2.4'
+  testImplementation "org.mockito:mockito-core:2.28.2"
+  testImplementation "org.apache.sshd:sshd-core:$sshdVersion"
+  testImplementation "org.apache.sshd:sshd-sftp:$sshdVersion"
+  testImplementation "org.apache.sshd:sshd-scp:$sshdVersion"
+  testRuntimeOnly "ch.qos.logback:logback-classic:1.2.3"
+  testImplementation 'org.glassfish.grizzly:grizzly-http-server:2.4.4'
+  testImplementation 'org.apache.httpcomponents:httpclient:4.5.9'
 
 }
 
@@ -78,6 +73,10 @@ license {
   excludes(['**/djb/Curve25519.java', '**/sshj/common/Base64.java', '**/org/mindrot/jbcrypt/*.java'])
 }
 
+if (!JavaVersion.current().isJava9Compatible()) {
+  throw new GradleScriptException("Minimum compilation version is Java 9")
+}
+
 // This disables the pedantic doclint feature of JDK8
 if (JavaVersion.current().isJava8Compatible()) {
   tasks.withType(Javadoc) {
@@ -85,6 +84,11 @@ if (JavaVersion.current().isJava8Compatible()) {
   }
 }
 
+
+compileJava {
+  options.compilerArgs.addAll(['--release', '7'])
+}
+
 task writeSshjVersionProperties {
   doLast {
     project.file("${project.buildDir}/resources/main").mkdirs()
@@ -129,8 +133,8 @@ sourcesJar {
 }
 
 configurations {
-  integrationTestCompile.extendsFrom testCompile
-  integrationTestRuntime.extendsFrom testRuntime
+  integrationTestImplementation.extendsFrom testImplementation
+  integrationTestRuntimeOnly.extendsFrom testRuntimeOnly
 }
 
 sourceSets {
@@ -223,7 +227,7 @@ if (project.hasProperty("bintrayUsername") && project.hasProperty("bintrayApiKey
     publications = ["maven"]
     pkg {
       repo = "maven"
-      name = project.name
+      name = "${project.name}"
       licenses = ["Apache-2.0"]
       vcsUrl = "https://github.com/hierynomus/sshj.git"
       labels = ["ssh", "sftp", "secure-shell", "network", "file-transfer"]
@@ -257,22 +261,23 @@ jacocoTestReport {
 
 task buildItestImage(type: DockerBuildImage) {
     inputDir = file('src/itest/docker-image')
-    tag = 'sshj/sshd-itest'
+    images.add('sshj/sshd-itest:latest')
 }
 
 task createItestContainer(type: DockerCreateContainer) {
     dependsOn buildItestImage
-    targetImageId { buildItestImage.getImageId() }
-    portBindings = ['2222:22']
+    targetImageId buildItestImage.getImageId()
+    hostConfig.portBindings = ['2222:22']
+    hostConfig.autoRemove = true
 }
 
 task startItestContainer(type: DockerStartContainer) {
     dependsOn createItestContainer
-    targetContainerId { createItestContainer.getContainerId() }
+    targetContainerId createItestContainer.getContainerId()
 }
 
 task stopItestContainer(type: DockerStopContainer) {
-    targetContainerId { createItestContainer.getContainerId() }
+    targetContainerId createItestContainer.getContainerId()
 }
 
 task forkedUploadRelease(type: GradleBuild) {

examples/src/main/java/net/schmizz/sshj/examples/InMemoryKnownHosts.java

@@ -0,0 +1,71 @@
+package net.schmizz.sshj.examples;
+
+import net.schmizz.sshj.SSHClient;
+import net.schmizz.sshj.common.KeyType;
+import net.schmizz.sshj.transport.verification.HostKeyVerifier;
+import net.schmizz.sshj.transport.verification.OpenSSHKnownHosts;
+import net.schmizz.sshj.xfer.FileSystemFile;
+
+import java.io.*;
+import java.nio.charset.Charset;
+import java.security.PublicKey;
+import java.util.ArrayList;
+import java.util.List;
+
+/** This examples demonstrates how to configure {@link net.schmizz.sshj.SSHClient} client with an in-memory known_hosts file */
+public class InMemoryKnownHosts {
+
+    public static void main(String[] args) throws IOException {
+        InputStream entry = new ByteArrayInputStream("localhost ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPmhSBtMctNa4hsZt8QGlsYSE5/gMkjeand69Vj4ir13".getBytes(Charset.defaultCharset()));
+        SSHClient ssh = new SSHClient();
+        ssh.addHostKeyVerifier(new InMemoryHostKeyVerifier(entry, Charset.defaultCharset()));
+        ssh.connect("localhost");
+        try {
+            ssh.authPublickey(System.getProperty("user.name"));
+            ssh.newSCPFileTransfer().download("test_file", new FileSystemFile("/tmp/"));
+        } finally {
+            ssh.disconnect();
+        }
+    }
+
+    public static class InMemoryHostKeyVerifier implements HostKeyVerifier {
+
+        private final List<OpenSSHKnownHosts.KnownHostEntry> entries = new ArrayList<OpenSSHKnownHosts.KnownHostEntry>();
+
+        public InMemoryHostKeyVerifier(InputStream inputStream, Charset charset) throws IOException {
+            final OpenSSHKnownHosts.EntryFactory entryFactory = new OpenSSHKnownHosts.EntryFactory();
+            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, charset));
+            while(reader.ready()) {
+                String line = reader.readLine();
+                try {
+                    OpenSSHKnownHosts.KnownHostEntry entry = entryFactory.parseEntry(line);
+                    if (entry != null) {
+                        entries.add(entry);
+                    }
+                } catch (Exception e) {
+                    //log error
+                }
+            }
+        }
+
+        @Override
+        public boolean verify(String hostname, int port, PublicKey key) {
+            final KeyType type = KeyType.fromKey(key);
+            if (type == KeyType.UNKNOWN) {
+                return false;
+            }
+
+            for (OpenSSHKnownHosts.KnownHostEntry e : entries) {
+                try {
+                    if (e.appliesTo(type, hostname) && e.verify(key)) {
+                        return true;
+                    }
+                } catch (IOException ioe) {
+                    //log error
+                }
+            }
+            return false;
+        }
+    }
+
+}

examples/src/main/java/net/schmizz/sshj/examples/Jump.java

@@ -0,0 +1,50 @@
+package net.schmizz.sshj.examples;
+
+import net.schmizz.sshj.SSHClient;
+import net.schmizz.sshj.common.IOUtils;
+import net.schmizz.sshj.connection.channel.direct.DirectConnection;
+import net.schmizz.sshj.connection.channel.direct.Session;
+
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * This example demonstrates connecting via an intermediate "jump" server using a direct TCP/IP channel.
+ */
+public class Jump {
+    public static void main(String... args)
+            throws IOException {
+        SSHClient firstHop = new SSHClient();
+
+        firstHop.loadKnownHosts();
+
+        firstHop.connect("localhost");
+        try {
+
+            firstHop.authPublickey(System.getProperty("user.name"));
+
+            DirectConnection tunnel = firstHop.newDirectConnection("localhost", 22);
+
+            SSHClient ssh = new SSHClient();
+            try {
+                ssh.loadKnownHosts();
+                ssh.connectVia(tunnel);
+                ssh.authPublickey(System.getProperty("user.name"));
+
+                final Session session = ssh.startSession();
+                try {
+                    final Session.Command cmd = session.exec("ping -c 1 google.com");
+                    System.out.println(IOUtils.readFully(cmd.getInputStream()).toString());
+                    cmd.join(5, TimeUnit.SECONDS);
+                    System.out.println("\n** exit status: " + cmd.getExitStatus());
+                } finally {
+                    session.close();
+                }
+            } finally {
+                ssh.disconnect();
+            }
+        } finally {
+            firstHop.disconnect();
+        }
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Fri Mar 18 11:26:35 CET 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.3-all.zip

gradlew

@@ -1,4 +1,20 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 
 ##############################################################################
 ##
@@ -6,47 +22,6 @@
 ##
 ##############################################################################
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
-
-APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
-
-warn ( ) {
-    echo "$*"
-}
-
-die ( ) {
-    echo
-    echo "$*"
-    echo
-    exit 1
-}
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-case "`uname`" in
-  CYGWIN* )
-    cygwin=true
-    ;;
-  Darwin* )
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-esac
-
-# For Cygwin, ensure paths are in UNIX format before anything is touched.
-if $cygwin ; then
-    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
-fi
-
 # Attempt to set APP_HOME
 # Resolve links: $0 may be a link
 PRG="$0"
@@ -61,9 +36,49 @@ while [ -h "$PRG" ] ; do
     fi
 done
 SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >&-
+cd "`dirname \"$PRG\"`/" >/dev/null
 APP_HOME="`pwd -P`"
-cd "$SAVED" >&-
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
@@ -90,7 +105,7 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
     MAX_FD_LIMIT=`ulimit -H -n`
     if [ $? -eq 0 ] ; then
         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
@@ -110,10 +125,11 @@ if $darwin; then
     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
 
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
@@ -138,27 +154,30 @@ if $cygwin ; then
         else
             eval `echo args$i`="\"$arg\""
         fi
-        i=$((i+1))
+        i=`expr $i + 1`
     done
     case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
     esac
 fi
 
-# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
-function splitJvmOpts() {
-    JVM_OPTS=("$@")
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=`save "$@"`
 
-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
@@ -8,14 +24,17 @@
 @rem Set local scope for the variables with windows NT shell
 if "%OS%"=="Windows_NT" setlocal
 
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
 set DIRNAME=%~dp0
 if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
@@ -46,10 +65,9 @@ echo location of your Java installation.
 goto fail
 
 :init
-@rem Get command-line arguments, handling Windowz variants
+@rem Get command-line arguments, handling Windows variants
 
 if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_args
 
 :win9xME_args
 @rem Slurp the command line arguments.
@@ -60,11 +78,6 @@ set _SKIP=2
 if "x%~1" == "x" goto execute
 
 set CMD_LINE_ARGS=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-set CMD_LINE_ARGS=%$
 
 :execute
 @rem Setup the command line

src/itest/docker-image/Dockerfile

@@ -1,11 +1,15 @@
-FROM sickp/alpine-sshd:7.5
+FROM sickp/alpine-sshd:7.5-r2
 
-ADD id_rsa.pub /home/sshj/.ssh/authorized_keys
+ADD authorized_keys /home/sshj/.ssh/authorized_keys
 
 ADD test-container/ssh_host_ecdsa_key     /etc/ssh/ssh_host_ecdsa_key
 ADD test-container/ssh_host_ecdsa_key.pub /etc/ssh/ssh_host_ecdsa_key.pub
+ADD test-container/ssh_host_ed25519_key   /etc/ssh/ssh_host_ed25519_key
+ADD test-container/ssh_host_ed25519_key.pub   /etc/ssh/ssh_host_ed25519_key.pub
 ADD test-container/sshd_config /etc/ssh/sshd_config
+ADD test-container/users_rsa_ca.pub /etc/ssh/users_rsa_ca.pub
 
+RUN apk add --no-cache tini
 RUN \
   echo "root:smile" | chpasswd && \
   adduser -D -s /bin/ash sshj && \
@@ -13,5 +17,8 @@ RUN \
   chmod 600 /home/sshj/.ssh/authorized_keys && \
   chmod 600 /etc/ssh/ssh_host_ecdsa_key && \
   chmod 644 /etc/ssh/ssh_host_ecdsa_key.pub && \
+  chmod 600 /etc/ssh/ssh_host_ed25519_key && \
+  chmod 644 /etc/ssh/ssh_host_ed25519_key.pub && \
   chown -R sshj:sshj /home/sshj
 
+ENTRYPOINT ["/sbin/tini", "/entrypoint.sh", "-o", "LogLevel=DEBUG2"]

src/itest/docker-image/authorized_keys

@@ -0,0 +1,9 @@
+ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOEQcvowiV3igdRO7rKPrZrao1hCQrnC4tgsxqSJdQCbABI+vHrdbJRfWZNuSk48aAtARJzJVmkn/r63EPJgkh8= root@itgcpkerberosstack-cbgateway-0-20151117031915
+ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBHQiZm0wBbmI8gohA/N9ir1O+egikL6S9FjZS8GHbx4rTHI1V+vbXxx2O9bFWtep1PFb4iowtZkxf6gvRjGkL6M= ajvanerp@Heimdall.local
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDAdJiRkkBM8yC8seTEoAn2PfwbLKrkcahZ0xxPoWICJ root@sshj
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJ8ww4hJG/gHJYdkjTTBDF1GNz+228nuWprPV+NbQauA ajvanerp@Heimdall.local
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOaWrwt3drIOjeBq2LSHRavxAT7ja2f+5soOUJl/zKSI ajvanerp@Heimdall.xebialabs.com
+ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAoZ9l6Tkm2aL1tSBy2yw4xU5s8BE9MfqS/4J7DzvsYJxF6oQmTIjmStuhH/CT7UjuDtKXdXZUsIhKtafiizxGO8kHSzKDeitpth2RSr8ddMzZKyD6RNs7MfsgjA3UTtrrSrCXEY6O43S2cnuJrWzkPxtwxaQ3zOvDbS2tiulzyq0VzYmuhA/a4CyuQtJBuu+P2oqmu6pU/VB6IzONpvBvYbNPsH1WDmP7zko5wHPihXPCliztspKxS4DRtOZ7BGXyvg44UmIy0Kf4jOkaBV/eCCA4qH7ZHz71/5ceMOpszPcNOEmLGGYhwI+P3OuGMpkrSAv1f8IY6R8spZNncP6UaQ== no-passphrase
+ssh-rsa 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 ajvanerp@Heimdall.local
+ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBMvfRYSe44VQGwxexOMibcM3+fWeUP1jrBofOxFDRRrzRF8dK/vll2svqTPXMRnITnT1UoemEcB5OHtvH4hzfh/HFeDxJ5S7UncYxoClTSa8MeMFG2Zj9CoUZs1SHbwSGg== root@sshj
+ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAHquUYgkU9wJrcxDWVtdqtfqf6SBDdPDRxwDl7OCohV2UNu2KdjJwSj8j0fsPeMdHjSiv9OCnHYrVilQ+W5WW5q5wGXwk10oIcV0JJscohLA0nS7mKinBrxUwVHnNZbPExFciicnEArcYRb1BuT7HF8hfjuSSpWS0rob6kloSSi/jV7ZA== root@sshj

src/itest/docker-image/id_rsa.pub

@@ -1 +0,0 @@
-ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAoZ9l6Tkm2aL1tSBy2yw4xU5s8BE9MfqS/4J7DzvsYJxF6oQmTIjmStuhH/CT7UjuDtKXdXZUsIhKtafiizxGO8kHSzKDeitpth2RSr8ddMzZKyD6RNs7MfsgjA3UTtrrSrCXEY6O43S2cnuJrWzkPxtwxaQ3zOvDbS2tiulzyq0VzYmuhA/a4CyuQtJBuu+P2oqmu6pU/VB6IzONpvBvYbNPsH1WDmP7zko5wHPihXPCliztspKxS4DRtOZ7BGXyvg44UmIy0Kf4jOkaBV/eCCA4qH7ZHz71/5ceMOpszPcNOEmLGGYhwI+P3OuGMpkrSAv1f8IY6R8spZNncP6UaQ== no-passphrase

src/itest/docker-image/test-container/ssh_host_ed25519_key

@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACBFG9PKAq8FtH0me+LHUE6YaVANCMqy/Znkffzief1W/gAAAKCyyoBkssqA
+ZAAAAAtzc2gtZWQyNTUxOQAAACBFG9PKAq8FtH0me+LHUE6YaVANCMqy/Znkffzief1W/g
+AAAED+Yfza2xk5LqP9pN6TpvhWYP0L60zOQJpHhbEuiS3LLkUb08oCrwW0fSZ74sdQTphp
+UA0IyrL9meR9/OJ5/Vb+AAAAF2FqdmFuZXJwQEhlaW1kYWxsLmxvY2FsAQIDBAUG
+-----END OPENSSH PRIVATE KEY-----

src/itest/docker-image/test-container/ssh_host_ed25519_key.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEUb08oCrwW0fSZ74sdQTphpUA0IyrL9meR9/OJ5/Vb+ ajvanerp@Heimdall.local

src/itest/docker-image/test-container/sshd_config

@@ -128,5 +128,9 @@ Subsystem	sftp	/usr/lib/ssh/sftp-server
 #	PermitTTY no
 #	ForceCommand cvs server
 
-
+KexAlgorithms curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1
 macs umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-ripemd160-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com
+
+TrustedUserCAKeys /etc/ssh/users_rsa_ca.pub
+
+Ciphers 3des-cbc,blowfish-cbc,aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com

src/itest/docker-image/test-container/users_rsa_ca.pub

@@ -0,0 +1 @@
+ssh-rsa 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 root@sshj

src/itest/generate.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+# Don't call it frequently. It's rather a documentation how everything is generated.
+ssh-keygen -f resources/users_rsa_ca -t rsa -N ''
+mv resources/users_rsa_ca.pub docker-image/test-container
+ssh-keygen -f resources/keyfiles/id_rsa2 -t rsa -m pem -N ''
+ssh-keygen -s resources/users_rsa_ca -I my_key_id -n sshj resources/keyfiles/id_rsa2.pub

src/itest/groovy/com/hierynomus/sshj/IntegrationBaseSpec.groovy

@@ -24,7 +24,7 @@ import spock.lang.Specification
 class IntegrationBaseSpec extends Specification {
     protected static final int DOCKER_PORT = 2222
     protected static final String USERNAME = "sshj"
-    protected static final String KEYFILE = "src/test/resources/id_rsa"
+    protected static final String KEYFILE = "src/itest/resources/keyfiles/id_rsa"
     protected final static String SERVER_IP = System.getProperty("serverIP", "127.0.0.1")
 
     protected static SSHClient getConnectedClient(Config config) {

src/itest/groovy/com/hierynomus/sshj/IntegrationSpec.groovy

@@ -15,23 +15,33 @@
  */
 package com.hierynomus.sshj
 
+import com.hierynomus.sshj.key.KeyAlgorithms
 import net.schmizz.sshj.DefaultConfig
 import net.schmizz.sshj.SSHClient
 import net.schmizz.sshj.transport.TransportException
 import net.schmizz.sshj.userauth.UserAuthException
+import spock.lang.Unroll
 
 class IntegrationSpec extends IntegrationBaseSpec {
 
-    def "should accept correct key"() {
+    @Unroll
+    def "should accept correct key for #signatureName"() {
         given:
-        SSHClient sshClient = new SSHClient(new DefaultConfig())
-        sshClient.addHostKeyVerifier("d3:6a:a9:52:05:ab:b5:48:dd:73:60:18:0c:3a:f0:a3") // test-containers/ssh_host_ecdsa_key's fingerprint
+        def config = new DefaultConfig()
+        config.setKeyAlgorithms(Collections.singletonList(signatureFactory))
+        SSHClient sshClient = new SSHClient(config)
+        sshClient.addHostKeyVerifier(fingerprint) // test-containers/ssh_host_ecdsa_key's fingerprint
 
         when:
         sshClient.connect(SERVER_IP, DOCKER_PORT)
 
         then:
         sshClient.isConnected()
+
+        where:
+        signatureFactory << [KeyAlgorithms.ECDSASHANistp256(), KeyAlgorithms.EdDSA25519()]
+        fingerprint << ["d3:6a:a9:52:05:ab:b5:48:dd:73:60:18:0c:3a:f0:a3", "dc:68:38:ce:fc:6f:2c:d6:6d:6b:34:eb:5c:f0:41:6a"]
+        signatureName = signatureFactory.getName()
     }
 
     def "should decline wrong key"() throws IOException {
@@ -46,15 +56,29 @@ class IntegrationSpec extends IntegrationBaseSpec {
         thrown(TransportException.class)
     }
 
-    def "should authenticate"() {
+    @Unroll
+    def "should authenticate with key #key"() {
         given:
         SSHClient client = getConnectedClient()
 
         when:
-        client.authPublickey(USERNAME, KEYFILE)
+        def keyProvider = passphrase != null ? client.loadKeys("src/itest/resources/keyfiles/$key", passphrase) : client.loadKeys("src/itest/resources/keyfiles/$key")
+        client.authPublickey(USERNAME, keyProvider)
 
         then:
         client.isAuthenticated()
+
+        where:
+        key | passphrase
+//        "id_ecdsa_nistp256" | null // TODO: Need to improve PKCS8 key support.
+        "id_ecdsa_opensshv1" | null
+        "id_ed25519_opensshv1" | null
+        "id_ed25519_opensshv1_aes256cbc.pem" | "foobar"
+        "id_ed25519_opensshv1_protected" | "sshjtest"
+        "id_rsa" | null
+        "id_rsa_opensshv1" | null
+        "id_ecdsa_nistp384_opensshv1" | null
+        "id_ecdsa_nistp521_opensshv1" | null
     }
 
    def "should not authenticate with wrong key"() {
@@ -62,7 +86,7 @@ class IntegrationSpec extends IntegrationBaseSpec {
         SSHClient client = getConnectedClient()
 
         when:
-        client.authPublickey("sshj", "src/test/resources/id_dsa")
+        client.authPublickey("sshj", "src/itest/resources/keyfiles/id_unknown_key")
 
         then:
         thrown(UserAuthException.class)

src/itest/groovy/com/hierynomus/sshj/signature/RsaSignatureClientKeySpec.groovy

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.signature
+
+import com.hierynomus.sshj.IntegrationBaseSpec
+import net.schmizz.sshj.DefaultConfig
+import spock.lang.Unroll
+
+class RsaSignatureClientKeySpec extends IntegrationBaseSpec {
+    @Unroll
+    def "should correctly connect using publickey auth with RSA key with signature"() {
+        given:
+        def client = getConnectedClient(new DefaultConfig())
+
+        when:
+        client.authPublickey(USERNAME, "src/itest/resources/keyfiles/id_rsa2")
+
+        then:
+        client.authenticated
+    }
+}

src/itest/groovy/com/hierynomus/sshj/signature/SignatureSpec.groovy

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.signature
+
+import com.hierynomus.sshj.IntegrationBaseSpec
+import com.hierynomus.sshj.key.KeyAlgorithms
+import net.schmizz.sshj.DefaultConfig
+import spock.lang.Unroll
+
+class SignatureSpec extends IntegrationBaseSpec {
+
+    @Unroll
+    def "should correctly connect with #sig Signature"() {
+        given:
+        def cfg = new DefaultConfig()
+        cfg.setKeyAlgorithms(Collections.singletonList(sigFactory))
+        def client = getConnectedClient(cfg)
+
+        when:
+        client.authPublickey(USERNAME, KEYFILE)
+
+        then:
+        client.authenticated
+
+        where:
+        sigFactory << [KeyAlgorithms.SSHRSA(), KeyAlgorithms.RSASHA256(), KeyAlgorithms.RSASHA512()]
+        sig = sigFactory.name
+    }
+}

src/itest/groovy/com/hierynomus/sshj/transport/cipher/CipherSpec.groovy

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.transport.cipher
+
+import com.hierynomus.sshj.IntegrationBaseSpec
+import net.schmizz.sshj.DefaultConfig
+import spock.lang.Unroll
+
+class CipherSpec extends IntegrationBaseSpec {
+
+    @Unroll
+    def "should correctly connect with #cipher Cipher"() {
+        given:
+        def cfg = new DefaultConfig()
+        cfg.setCipherFactories(cipherFactory)
+        def client = getConnectedClient(cfg)
+
+        when:
+        client.authPublickey(USERNAME, KEYFILE)
+
+        then:
+        client.authenticated
+
+        cleanup:
+        client.disconnect()
+
+        where:
+        cipherFactory << [BlockCiphers.TripleDESCBC(),
+                          BlockCiphers.BlowfishCBC(),
+                          BlockCiphers.AES128CBC(),
+                          BlockCiphers.AES128CTR(),
+                          BlockCiphers.AES192CBC(),
+                          BlockCiphers.AES192CTR(),
+                          BlockCiphers.AES256CBC(),
+                          BlockCiphers.AES256CTR(),
+                          GcmCiphers.AES128GCM(),
+                          GcmCiphers.AES256GCM()]
+        cipher = cipherFactory.name
+    }
+
+}

src/itest/groovy/com/hierynomus/sshj/transport/kex/KexSpec.groovy

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.transport.kex
+
+import com.hierynomus.sshj.IntegrationBaseSpec
+import com.hierynomus.sshj.transport.mac.Macs
+import net.schmizz.sshj.DefaultConfig
+import net.schmizz.sshj.transport.kex.Curve25519DH
+import net.schmizz.sshj.transport.kex.Curve25519SHA256
+import net.schmizz.sshj.transport.kex.DH
+import net.schmizz.sshj.transport.kex.DHGexSHA1
+import net.schmizz.sshj.transport.kex.DHGexSHA256
+import net.schmizz.sshj.transport.kex.ECDH
+import net.schmizz.sshj.transport.kex.ECDHNistP
+import spock.lang.Unroll
+
+class KexSpec extends IntegrationBaseSpec {
+
+    @Unroll
+    def "should correctly connect with #kex Key Exchange"() {
+        given:
+        def cfg = new DefaultConfig()
+        cfg.setKeyExchangeFactories(kexFactory)
+        def client = getConnectedClient(cfg)
+
+        when:
+        client.authPublickey(USERNAME, KEYFILE)
+
+        then:
+        client.authenticated
+
+        where:
+        kexFactory << [DHGroups.Group1SHA1(),
+                       DHGroups.Group14SHA1(),
+                       DHGroups.Group14SHA256(),
+                       DHGroups.Group16SHA512(),
+                       DHGroups.Group18SHA512(),
+                       new DHGexSHA1.Factory(),
+                       new DHGexSHA256.Factory(),
+                       new Curve25519SHA256.Factory(),
+                       new Curve25519SHA256.FactoryLibSsh(),
+                       new ECDHNistP.Factory256(),
+                       new ECDHNistP.Factory384(),
+                       new ECDHNistP.Factory521()]
+        kex = kexFactory.name
+    }
+
+}

src/itest/groovy/com/hierynomus/sshj/transport/mac/MacSpec.groovy

@@ -17,8 +17,6 @@ package com.hierynomus.sshj.transport.mac
 
 import com.hierynomus.sshj.IntegrationBaseSpec
 import net.schmizz.sshj.DefaultConfig
-import net.schmizz.sshj.transport.mac.HMACRIPEMD160
-import net.schmizz.sshj.transport.mac.HMACSHA2256
 import spock.lang.Unroll
 
 class MacSpec extends IntegrationBaseSpec {
@@ -36,8 +34,32 @@ class MacSpec extends IntegrationBaseSpec {
         then:
         client.authenticated
 
+        cleanup:
+        client.disconnect()
+
         where:
         macFactory << [Macs.HMACRIPEMD160(), Macs.HMACRIPEMD160OpenSsh(), Macs.HMACSHA2256(), Macs.HMACSHA2512()]
         mac = macFactory.name
     }
+
+    @Unroll
+    def "should correctly connect with Encrypt-Then-Mac #mac MAC"() {
+        given:
+        def cfg = new DefaultConfig()
+        cfg.setMACFactories(macFactory)
+        def client = getConnectedClient(cfg)
+
+        when:
+        client.authPublickey(USERNAME, KEYFILE)
+
+        then:
+        client.authenticated
+
+        cleanup:
+        client.disconnect()
+
+        where:
+        macFactory << [Macs.HMACRIPEMD160Etm(), Macs.HMACSHA2256Etm(), Macs.HMACSHA2512Etm()]
+        mac = macFactory.name
+    }
 }

src/itest/resources/keyfiles/id_ecdsa_nistp256

@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIJUMlsSlXqCZmCjlN4kV7hzP+p9pu0fwJ8r4m1qle58SoAoGCCqGSM49
+AwEHoUQDQgAE4RBy+jCJXeKB1E7uso+tmtqjWEJCucLi2CzGpIl1AJsAEj68et1s
+lF9Zk25KTjxoC0BEnMlWaSf+vrcQ8mCSHw==
+-----END EC PRIVATE KEY-----

src/itest/resources/keyfiles/id_ecdsa_nistp384_opensshv1

@@ -0,0 +1,10 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAiAAAABNlY2RzYS
+1zaGEyLW5pc3RwMzg0AAAACG5pc3RwMzg0AAAAYQTL30WEnuOFUBsMXsTjIm3DN/n1nlD9
+Y6waHzsRQ0Ua80RfHSv75ZdrL6kz1zEZyE509VKHphHAeTh7bx+Ic34fxxXg8SeUu1J3GM
+aApU0mvDHjBRtmY/QqFGbNUh28EhoAAADYHWlHLx1pRy8AAAATZWNkc2Etc2hhMi1uaXN0
+cDM4NAAAAAhuaXN0cDM4NAAAAGEEy99FhJ7jhVAbDF7E4yJtwzf59Z5Q/WOsGh87EUNFGv
+NEXx0r++WXay+pM9cxGchOdPVSh6YRwHk4e28fiHN+H8cV4PEnlLtSdxjGgKVNJrwx4wUb
+ZmP0KhRmzVIdvBIaAAAAMQD3sx28SrtkuhN+Yu06BAoFLMMgneIqguM3jowaz0LWfP1Nhx
+Rnh9tNKM6YYvygCggAAAAPZmhlbm5la2VATGFwdG9w
+-----END OPENSSH PRIVATE KEY-----

src/itest/resources/keyfiles/id_ecdsa_nistp521_opensshv1

@@ -0,0 +1,12 @@
+-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----

src/itest/resources/keyfiles/id_ecdsa_opensshv1

@@ -0,0 +1,9 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAaAAAABNlY2RzYS
+1zaGEyLW5pc3RwMjU2AAAACG5pc3RwMjU2AAAAQQR0ImZtMAW5iPIKIQPzfYq9TvnoIpC+
+kvRY2UvBh28eK0xyNVfr218cdjvWxVrXqdTxW+IqMLWZMX+oL0YxpC+jAAAAsD+6Oow/uj
+qMAAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBHQiZm0wBbmI8goh
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+-----END OPENSSH PRIVATE KEY-----

src/itest/resources/keyfiles/id_ed25519_opensshv1

@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
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+-----END OPENSSH PRIVATE KEY-----

src/itest/resources/keyfiles/id_ed25519_opensshv1_aes256cbc.pem

@@ -0,0 +1,8 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
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+-----END OPENSSH PRIVATE KEY-----

src/itest/resources/keyfiles/id_ed25519_opensshv1_protected

@@ -0,0 +1,8 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
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+-----END OPENSSH PRIVATE KEY-----

src/itest/resources/keyfiles/id_rsa

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----

src/itest/resources/keyfiles/id_rsa2

@@ -0,0 +1,39 @@
+-----BEGIN RSA PRIVATE KEY-----
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+-----END RSA PRIVATE KEY-----

src/itest/resources/keyfiles/id_rsa2-cert.pub

@@ -0,0 +1 @@
+ssh-rsa-cert-v01@openssh.com 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 lagunov@unit-1381

src/itest/resources/keyfiles/id_rsa2.pub

@@ -0,0 +1 @@
+ssh-rsa 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 lagunov@unit-1381

src/itest/resources/keyfiles/id_rsa_opensshv1

@@ -0,0 +1,49 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
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+RQFHH+HldhLqmp2ikHZWFq36vjTDr/ubCuwQNlJo4TAo5/RQk1/ChBqXj2IdT+vBysH+bK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+-----END OPENSSH PRIVATE KEY-----

src/itest/resources/keyfiles/id_unknown_key

@@ -0,0 +1,15 @@
+-----BEGIN DSA PRIVATE KEY-----
+Proc-Type: 4,ENCRYPTED
+DEK-Info: DES-EDE3-CBC,9B6744BB12A8EA8F
+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+-----END DSA PRIVATE KEY-----

src/itest/resources/users_rsa_ca

@@ -0,0 +1,38 @@
+-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----

src/main/java/com/hierynomus/sshj/common/KeyAlgorithm.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.common;
+
+public class KeyAlgorithm {
+
+    public static final String RSA = "RSA";
+    public static final String DSA = "DSA";
+
+    /** Elliptic curve signature key algorithm for use with BouncyCastle **/
+    public static final String ECDSA = "ECDSA";
+
+    /** General elliptic curve algorithm identifier for use with BouncyCastle **/
+    public static final String EC_BC = "EC";
+
+    /** General elliptic curve algorithm identifier for use with the Android Keystore **/
+    public static final String EC_KEYSTORE = "EC";
+}

src/main/java/com/hierynomus/sshj/common/KeyDecryptionFailedException.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.common;
+
+import org.bouncycastle.openssl.EncryptionException;
+
+import java.io.IOException;
+
+/**
+ * Thrown when a key file could not be decrypted correctly, e.g. if its checkInts differed in the case of an OpenSSH
+ * key file.
+ */
+@SuppressWarnings("serial")
+public class KeyDecryptionFailedException extends IOException {
+
+    public static final String MESSAGE = "Decryption of the key failed. A supplied passphrase may be incorrect.";
+
+    public KeyDecryptionFailedException() {
+        super(MESSAGE);
+    }
+
+    public KeyDecryptionFailedException(EncryptionException cause) {
+        super(MESSAGE, cause);
+    }
+
+}

src/main/java/com/hierynomus/sshj/key/BaseKeyAlgorithm.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.key;
+
+import net.schmizz.sshj.common.Buffer;
+import net.schmizz.sshj.common.Factory;
+import net.schmizz.sshj.common.KeyType;
+import net.schmizz.sshj.signature.Signature;
+
+import java.security.GeneralSecurityException;
+import java.security.PublicKey;
+
+public class BaseKeyAlgorithm implements KeyAlgorithm {
+    private final String keyAlgorithm;
+    private final Factory.Named<Signature> signature;
+    private final KeyType keyFormat;
+
+    public BaseKeyAlgorithm(String keyAlgorithm, Factory.Named<Signature> signature, KeyType keyFormat) {
+        this.keyAlgorithm = keyAlgorithm;
+        this.signature = signature;
+        this.keyFormat = keyFormat;
+    }
+
+    public void putPubKeyIntoBuffer(PublicKey pk, Buffer<?> buf) {
+        keyFormat.putPubKeyIntoBuffer(pk, buf);
+    }
+
+    @Override
+    public PublicKey readPubKeyFromBuffer(Buffer<?> buf) throws GeneralSecurityException {
+        return keyFormat.readPubKeyFromBuffer(buf);
+    }
+
+    @Override
+    public String getKeyAlgorithm() {
+        return keyAlgorithm;
+    }
+
+    @Override
+    public KeyType getKeyFormat() {
+        return keyFormat;
+    }
+
+    @Override
+    public Signature newSignature() {
+        return this.signature.create();
+    }
+}

src/main/java/com/hierynomus/sshj/key/KeyAlgorithm.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.key;
+
+import net.schmizz.sshj.common.Buffer;
+import net.schmizz.sshj.common.KeyType;
+import net.schmizz.sshj.signature.Signature;
+
+import java.security.GeneralSecurityException;
+import java.security.PublicKey;
+
+/**
+ * In [RFC4252], the concept "public key algorithm" is used to establish
+ * a relationship between one algorithm name, and:
+ * <p>
+ * A.  procedures used to generate and validate a private/public
+ * keypair;
+ * B.  a format used to encode a public key; and
+ * C.  procedures used to calculate, encode, and verify a signature.
+ */
+public interface KeyAlgorithm {
+
+    PublicKey readPubKeyFromBuffer(Buffer<?> buf) throws GeneralSecurityException;
+
+    void putPubKeyIntoBuffer(PublicKey pk, Buffer<?> buf);
+
+    String getKeyAlgorithm();
+
+    KeyType getKeyFormat();
+
+    Signature newSignature();
+}

src/main/java/com/hierynomus/sshj/key/KeyAlgorithms.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.key;
+
+import com.hierynomus.sshj.signature.SignatureEdDSA;
+import net.schmizz.sshj.common.KeyType;
+import net.schmizz.sshj.signature.Signature;
+import net.schmizz.sshj.signature.SignatureDSA;
+import net.schmizz.sshj.signature.SignatureECDSA;
+import net.schmizz.sshj.signature.SignatureRSA;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class KeyAlgorithms {
+
+    public static List<String> SSH_RSA_SHA2_ALGORITHMS = Arrays.asList("rsa-sha2-512", "rsa-sha2-256");
+
+    public static Factory SSHRSA() { return new Factory("ssh-rsa", new SignatureRSA.FactorySSHRSA(), KeyType.RSA); }
+    public static Factory SSHRSACertV01() { return new Factory("ssh-rsa-cert-v01@openssh.com", new SignatureRSA.FactoryCERT(), KeyType.RSA_CERT); }
+    public static Factory RSASHA256() { return new Factory("rsa-sha2-256", new SignatureRSA.FactoryRSASHA256(), KeyType.RSA); }
+    public static Factory RSASHA512() { return new Factory("rsa-sha2-512", new SignatureRSA.FactoryRSASHA512(), KeyType.RSA); }
+    public static Factory SSHDSA() { return new Factory(KeyType.DSA.toString(), new SignatureDSA.Factory(), KeyType.DSA); }
+    public static Factory SSHDSSCertV01() { return new Factory(KeyType.DSA_CERT.toString(), new SignatureDSA.Factory(), KeyType.DSA_CERT); }
+    public static Factory ECDSASHANistp256() { return new Factory(KeyType.ECDSA256.toString(), new SignatureECDSA.Factory256(), KeyType.ECDSA256); }
+    public static Factory ECDSASHANistp384() { return new Factory(KeyType.ECDSA384.toString(), new SignatureECDSA.Factory384(), KeyType.ECDSA384); }
+    public static Factory ECDSASHANistp521() { return new Factory(KeyType.ECDSA521.toString(), new SignatureECDSA.Factory521(), KeyType.ECDSA521); }
+    public static Factory EdDSA25519() { return new Factory(KeyType.ED25519.toString(), new SignatureEdDSA.Factory(), KeyType.ED25519); }
+
+    public static class Factory implements net.schmizz.sshj.common.Factory.Named<KeyAlgorithm> {
+
+        private final String algorithmName;
+        private final Named<Signature> signatureFactory;
+        private final KeyType keyType;
+
+        public Factory(String algorithmName, Named<Signature> signatureFactory, KeyType keyType) {
+            this.algorithmName = algorithmName;
+            this.signatureFactory = signatureFactory;
+            this.keyType = keyType;
+        }
+
+        @Override
+        public String getName() {
+            return algorithmName;
+        }
+
+        @Override
+        public KeyAlgorithm create() {
+            return new BaseKeyAlgorithm(algorithmName, signatureFactory, keyType);
+        }
+    }
+}

src/main/java/com/hierynomus/sshj/signature/Ed25519PublicKey.java

@@ -27,6 +27,7 @@ import java.util.Arrays;
  * Our own extension of the EdDSAPublicKey that comes from ECC-25519, as that class does not implement equality.
  * The code uses the equality of the keys as an indicator whether they're the same during host key verification.
  */
+@SuppressWarnings("serial")
 public class Ed25519PublicKey extends EdDSAPublicKey {
 
     public Ed25519PublicKey(EdDSAPublicKeySpec spec) {

src/main/java/com/hierynomus/sshj/signature/SignatureEdDSA.java

@@ -40,7 +40,7 @@ public class SignatureEdDSA extends AbstractSignature {
     }
 
     SignatureEdDSA() {
-        super(getEngine());
+        super(getEngine(), KeyType.ED25519.toString());
     }
 
     private static EdDSAEngine getEngine() {

src/main/java/com/hierynomus/sshj/transport/IdentificationStringParser.java

@@ -79,11 +79,9 @@ public class IdentificationStringParser {
         }
         if (bytes[bytes.length - 2] != '\r') {
             String ident = new String(bytes, 0, bytes.length - 1);
-            log.warn("Server identification has bad line ending, was expecting a '\\r\\n' however got: '{}' (hex: {})", (char) (bytes[bytes.length - 2] & 0xFF), Integer.toHexString(bytes[bytes.length - 2] & 0xFF));
-            log.warn("Will treat the identification of this server '{}' leniently", ident);
+            log.info("Server identification has bad line ending, was expecting a '\\r\\n' however got: '{}' (hex: {})", (char) (bytes[bytes.length - 2] & 0xFF), Integer.toHexString(bytes[bytes.length - 2] & 0xFF));
+            log.info("Will treat the identification of this server '{}' leniently", ident);
             return ident;
-            // log.error("Data received up til here was: {}", new String(bytes));
-            // throw new TransportException("Incorrect identification: bad line ending: " + ByteArrayUtils.toHex(bytes, 0, bytes.length));
         }
 
         // Strip off the \r\n

src/main/java/com/hierynomus/sshj/transport/cipher/GcmCipher.java

@@ -0,0 +1,164 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.transport.cipher;
+
+import net.schmizz.sshj.common.SSHRuntimeException;
+import net.schmizz.sshj.transport.cipher.BaseCipher;
+
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.GCMParameterSpec;
+import java.security.GeneralSecurityException;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+
+public class GcmCipher extends BaseCipher {
+
+    protected int authSize;
+    protected Mode mode;
+    protected boolean initialized;
+    protected CounterGCMParameterSpec parameters;
+    protected SecretKey secretKey;
+
+    public GcmCipher(int ivsize, int authSize, int bsize, String algorithm, String transformation) {
+        super(ivsize, bsize, algorithm, transformation);
+        this.authSize = authSize;
+    }
+
+    @Override
+    public int getAuthenticationTagSize() {
+        return authSize;
+    }
+
+    protected Cipher getInitializedCipherInstance() throws GeneralSecurityException {
+        if (!initialized) {
+            cipher.init(mode == Mode.Encrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, secretKey, parameters);
+            initialized = true;
+        }
+        return cipher;
+    }
+
+    @Override
+    protected void initCipher(Cipher cipher, Mode mode, byte[] key, byte[] iv) throws InvalidKeyException, InvalidAlgorithmParameterException {
+        this.mode = mode;
+        this.secretKey = getKeySpec(key);
+        this.parameters = new CounterGCMParameterSpec(getAuthenticationTagSize() * Byte.SIZE, iv);
+        cipher.init(getMode(mode), secretKey, parameters);
+        initialized = true;
+    }
+
+    @Override
+    public void updateAAD(byte[] data, int offset, int length) {
+        try {
+            Cipher cipher = getInitializedCipherInstance();
+            cipher.updateAAD(data, offset, length);
+        } catch (GeneralSecurityException e) {
+            throw new SSHRuntimeException("Error updating data through cipher", e);
+        }
+    }
+
+    @Override
+    public void update(byte[] input, int inputOffset, int inputLen) {
+        if (mode == Mode.Decrypt) {
+            inputLen += getAuthenticationTagSize();
+        }
+        try {
+            Cipher cipher = getInitializedCipherInstance();
+            cipher.doFinal(input, inputOffset, inputLen, input, inputOffset);
+        } catch (GeneralSecurityException e) {
+            throw new SSHRuntimeException("Error updating data through cipher", e);
+        }
+        /*
+         *  As the RFC stated, the IV used in AES-GCM cipher for SSH is a 4-byte constant plus a 8-byte invocation
+         *  counter. After cipher.doFinal() is called, IV invocation counter is increased by 1, and changes to the IV
+         *  requires reinitializing the cipher, so initialized have to be false here, for the next invocation.
+         *
+         *  Refer to RFC5647, Section 7.1
+         */
+        parameters.incrementCounter();
+        initialized = false;
+    }
+
+    /**
+     * Algorithm parameters for AES/GCM that assumes the IV uses an 8-byte counter field as its most significant bytes.
+     */
+    protected static class CounterGCMParameterSpec extends GCMParameterSpec {
+        protected final byte[] iv;
+
+        protected CounterGCMParameterSpec(int tLen, byte[] src) {
+            super(tLen, src);
+            if (src.length != 12) {
+                throw new IllegalArgumentException("GCM nonce must be 12 bytes, but given len=" + src.length);
+            }
+            iv = src.clone();
+        }
+
+        protected void incrementCounter() {
+            int off = iv.length - 8;
+            long counter = getLong(iv, off, 8);
+            putLong(addExact(counter, 1L), iv, off, 8);
+        }
+
+        @Override
+        public byte[] getIV() {
+            // JCE implementation of GCM will complain if the reference doesn't change between inits
+            return iv.clone();
+        }
+
+        static long addExact(long var0, long var2) {
+            long var4 = var0 + var2;
+            if (((var0 ^ var4) & (var2 ^ var4)) < 0L) {
+                throw new ArithmeticException("long overflow");
+            } else {
+                return var4;
+            }
+        }
+
+        static long getLong(byte[] buf, int off, int len) {
+            if (len < 8) {
+                throw new IllegalArgumentException("Not enough data for a long: required=8, available=" + len);
+            }
+
+            long l = (long) buf[off] << 56;
+            l |= ((long) buf[off + 1] & 0xff) << 48;
+            l |= ((long) buf[off + 2] & 0xff) << 40;
+            l |= ((long) buf[off + 3] & 0xff) << 32;
+            l |= ((long) buf[off + 4] & 0xff) << 24;
+            l |= ((long) buf[off + 5] & 0xff) << 16;
+            l |= ((long) buf[off + 6] & 0xff) << 8;
+            l |= (long) buf[off + 7] & 0xff;
+
+            return l;
+        }
+
+        static int putLong(long value, byte[] buf, int off, int len) {
+            if (len < 8) {
+                throw new IllegalArgumentException("Not enough data for a long: required=8, available=" + len);
+            }
+
+            buf[off] = (byte) (value >> 56);
+            buf[off + 1] = (byte) (value >> 48);
+            buf[off + 2] = (byte) (value >> 40);
+            buf[off + 3] = (byte) (value >> 32);
+            buf[off + 4] = (byte) (value >> 24);
+            buf[off + 5] = (byte) (value >> 16);
+            buf[off + 6] = (byte) (value >> 8);
+            buf[off + 7] = (byte) value;
+
+            return 8;
+        }
+    }
+}

src/main/java/com/hierynomus/sshj/transport/cipher/GcmCiphers.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.transport.cipher;
+
+import net.schmizz.sshj.transport.cipher.Cipher;
+
+public class GcmCiphers {
+
+    public static final String GALOIS_COUNTER_MODE = "GCM";
+
+    public static Factory AES128GCM() {
+        return new Factory(12, 16, 128, "aes128-gcm@openssh.com", "AES", GALOIS_COUNTER_MODE);
+    }
+
+    public static Factory AES256GCM() {
+        return new Factory(12, 16, 256, "aes256-gcm@openssh.com", "AES", GALOIS_COUNTER_MODE);
+    }
+
+    /** Named factory for BlockCipher */
+    public static class Factory
+            implements net.schmizz.sshj.common.Factory.Named<Cipher> {
+
+        private int keysize;
+        private int authSize;
+        private String cipher;
+        private String mode;
+        private String name;
+        private int ivsize;
+
+        /**
+         * @param ivsize
+         * @param keysize The keysize used in bits.
+         * @param name
+         * @param cipher
+         * @param mode
+         */
+        public Factory(int ivsize, int authSize, int keysize, String name, String cipher, String mode) {
+            this.name = name;
+            this.keysize = keysize;
+            this.cipher = cipher;
+            this.mode = mode;
+            this.ivsize = ivsize;
+            this.authSize = authSize;
+        }
+
+        @Override
+        public Cipher create() {
+            return new GcmCipher(ivsize, authSize, keysize / 8, cipher, cipher + "/" + mode + "/NoPadding");
+        }
+
+        @Override
+        public String getName() {
+            return name;
+        }
+
+        @Override
+        public String toString() {
+            return getName();
+        }
+    }
+}

src/main/java/com/hierynomus/sshj/transport/kex/DHGroups.java

@@ -26,7 +26,7 @@ import java.math.BigInteger;
 import static net.schmizz.sshj.transport.kex.DHGroupData.*;
 
 /**
- * Factory methods for Diffie Hellmann KEX algorithms based on MODP groups / Oakley Groups
+ * Factory methods for Diffie Hellman KEX algorithms based on MODP groups / Oakley Groups
  *
  * - https://tools.ietf.org/html/rfc4253
  * - https://tools.ietf.org/html/draft-ietf-curdle-ssh-modp-dh-sha2-01

src/main/java/com/hierynomus/sshj/transport/kex/ExtInfoClientFactory.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.hierynomus.sshj.transport.kex;
+
+import net.schmizz.sshj.transport.kex.KeyExchange;
+
+/**
+ * Stub kex algorithm factory that indicates support for SSH2_MSG_EXT_INFO.
+ * Some servers will not send `rsa-sha2-*` signatures if the client doesn't indicate support.
+ *
+ * Note: Since the server sends `ext-info-s` to indicate support, this fake kex algorithm is never negotiated.
+ */
+public class ExtInfoClientFactory implements net.schmizz.sshj.common.Factory.Named<KeyExchange> {
+    @Override
+    public String getName() {
+        return "ext-info-c";
+    }
+
+    @Override
+    public KeyExchange create() {
+        return null;
+    }
+}

src/main/java/com/hierynomus/sshj/transport/mac/Macs.java

@@ -16,48 +16,73 @@
 package com.hierynomus.sshj.transport.mac;
 
 import net.schmizz.sshj.transport.mac.BaseMAC;
+import net.schmizz.sshj.transport.mac.MAC;
 
+@SuppressWarnings("PMD.MethodNamingConventions")
 public class Macs {
     public static Factory HMACMD5() {
-        return new Factory("hmac-md5", "HmacMD5", 16, 16);
+        return new Factory("hmac-md5", "HmacMD5", 16, 16, false);
     }
     public static Factory HMACMD596() {
-        return new Factory("hmac-md5-96", "HmacMD5", 12, 16);
+        return new Factory("hmac-md5-96", "HmacMD5", 12, 16, false);
+    }
+    public static Factory HMACMD5Etm() {
+        return new Factory("hmac-md5-etm@openssh.com", "HmacMD5", 16, 16, true);
+    }
+    public static Factory HMACMD596Etm() {
+        return new Factory("hmac-md5-96-etm@openssh.com", "HmacMD5", 12, 16, true);
     }
     public static Factory HMACRIPEMD160() {
-        return new Factory("hmac-ripemd160", "HMACRIPEMD160", 20, 20);
+        return new Factory("hmac-ripemd160", "HMACRIPEMD160", 20, 20, false);
     }
     public static Factory HMACRIPEMD16096() {
-        return new Factory("hmac-ripemd160-96", "HMACRIPEMD160", 12, 20);
+        return new Factory("hmac-ripemd160-96", "HMACRIPEMD160", 12, 20, false);
+    }
+    public static Factory HMACRIPEMD160Etm() {
+        return new Factory("hmac-ripemd160-etm@openssh.com", "HMACRIPEMD160", 20, 20, true);
     }
     public static Factory HMACRIPEMD160OpenSsh() {
-        return new Factory("hmac-ripemd160@openssh.com", "HMACRIPEMD160", 20, 20);
+        return new Factory("hmac-ripemd160@openssh.com", "HMACRIPEMD160", 20, 20, false);
     }
     public static Factory HMACSHA1() {
-        return new Factory("hmac-sha1", "HmacSHA1", 20, 20);
+        return new Factory("hmac-sha1", "HmacSHA1", 20, 20, false);
     }
     public static Factory HMACSHA196() {
-        return new Factory("hmac-sha1-96", "HmacSHA1", 12, 20);
+        return new Factory("hmac-sha1-96", "HmacSHA1", 12, 20, false);
+    }
+    public static Factory HMACSHA1Etm() {
+        return new Factory("hmac-sha1-etm@openssh.com", "HmacSHA1", 20, 20, true);
+    }
+    public static Factory HMACSHA196Etm() {
+        return new Factory("hmac-sha1-96@openssh.com", "HmacSHA1", 12, 20, true);
     }
     public static Factory HMACSHA2256() {
-        return new Factory("hmac-sha2-256", "HmacSHA256", 32, 32);
+        return new Factory("hmac-sha2-256", "HmacSHA256", 32, 32, false);
+    }
+    public static Factory HMACSHA2256Etm() {
+        return new Factory("hmac-sha2-256-etm@openssh.com", "HmacSHA256", 32, 32, true);
     }
     public static Factory HMACSHA2512() {
-        return new Factory("hmac-sha2-512", "HmacSHA512", 64, 64);
+        return new Factory("hmac-sha2-512", "HmacSHA512", 64, 64, false);
+    }
+    public static Factory HMACSHA2512Etm() {
+        return new Factory("hmac-sha2-512-etm@openssh.com", "HmacSHA512", 64, 64, true);
     }
 
-    private static class Factory implements net.schmizz.sshj.common.Factory.Named<BaseMAC> {
+    public static class Factory implements net.schmizz.sshj.common.Factory.Named<MAC> {
 
         private String name;
         private String algorithm;
         private int bSize;
         private int defBSize;
+        private final boolean etm;
 
-        public Factory(String name, String algorithm, int bSize, int defBSize) {
+        public Factory(String name, String algorithm, int bSize, int defBSize, boolean etm) {
             this.name = name;
             this.algorithm = algorithm;
             this.bSize = bSize;
             this.defBSize = defBSize;
+            this.etm = etm;
         }
 
         @Override
@@ -67,7 +92,7 @@ public class Macs {
 
         @Override
         public BaseMAC create() {
-            return new BaseMAC(algorithm, bSize, defBSize);
+            return new BaseMAC(algorithm, bSize, defBSize, etm);
         }
     }
 }

src/main/java/com/hierynomus/sshj/transport/verification/KnownHostMatchers.java

@@ -18,7 +18,6 @@ package com.hierynomus.sshj.transport.verification;
 import net.schmizz.sshj.common.Base64;
 import net.schmizz.sshj.common.IOUtils;
 import net.schmizz.sshj.common.SSHException;
-import net.schmizz.sshj.transport.mac.HMACSHA1;
 import net.schmizz.sshj.transport.mac.MAC;
 
 import java.io.IOException;
@@ -26,6 +25,8 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Pattern;
 
+import com.hierynomus.sshj.transport.mac.Macs;
+
 public class KnownHostMatchers {
 
     public static HostMatcher createMatcher(String hostEntry) throws SSHException {
@@ -63,7 +64,7 @@ public class KnownHostMatchers {
     }
 
     private static class HashedHostMatcher implements HostMatcher {
-        private final MAC sha1 = new HMACSHA1();
+        private final MAC sha1 = Macs.HMACSHA1().create();
         private final String hash;
         private final String salt;
         private byte[] saltyBytes;

src/main/java/com/hierynomus/sshj/userauth/keyprovider/OpenSSHKeyV1KeyFile.java

@@ -15,6 +15,8 @@
  */
 package com.hierynomus.sshj.userauth.keyprovider;
 
+import com.hierynomus.sshj.common.KeyAlgorithm;
+import com.hierynomus.sshj.common.KeyDecryptionFailedException;
 import com.hierynomus.sshj.transport.cipher.BlockCiphers;
 import net.i2p.crypto.eddsa.EdDSAPrivateKey;
 import net.i2p.crypto.eddsa.spec.EdDSANamedCurveTable;
@@ -25,18 +27,22 @@ import net.schmizz.sshj.transport.cipher.Cipher;
 import net.schmizz.sshj.userauth.keyprovider.BaseFileKeyProvider;
 import net.schmizz.sshj.userauth.keyprovider.FileKeyProvider;
 import net.schmizz.sshj.userauth.keyprovider.KeyFormat;
+import org.bouncycastle.asn1.nist.NISTNamedCurves;
+import org.bouncycastle.asn1.x9.X9ECParameters;
+import org.bouncycastle.jce.spec.ECNamedCurveSpec;
 import org.mindrot.jbcrypt.BCrypt;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.BufferedReader;
 import java.io.IOException;
+import java.math.BigInteger;
 import java.nio.ByteBuffer;
 import java.nio.CharBuffer;
 import java.nio.charset.Charset;
-import java.security.GeneralSecurityException;
-import java.security.KeyPair;
-import java.security.PublicKey;
+import java.security.*;
+import java.security.spec.ECPrivateKeySpec;
+import java.security.spec.RSAPrivateKeySpec;
 import java.util.Arrays;
 
 /**
@@ -106,9 +112,17 @@ public class OpenSSHKeyV1KeyFile extends BaseFileKeyProvider {
             logger.debug("Reading unencrypted keypair");
             return readUnencrypted(privateKeyBuffer, publicKey);
         } else {
-            logger.info("Keypair is encrypted with: " + cipherName + ", " + kdfName + ", " + kdfOptions);
-            PlainBuffer decrypted = decryptBuffer(privateKeyBuffer, cipherName, kdfName, kdfOptions);
-            return readUnencrypted(decrypted, publicKey);
+            logger.info("Keypair is encrypted with: " + cipherName + ", " + kdfName + ", " + Arrays.toString(kdfOptions));
+            while (true) {
+                PlainBuffer decryptionBuffer = new PlainBuffer(privateKeyBuffer);
+                PlainBuffer decrypted = decryptBuffer(decryptionBuffer, cipherName, kdfName, kdfOptions);
+                try {
+                    return readUnencrypted(decrypted, publicKey);
+                } catch (KeyDecryptionFailedException e) {
+                    if (pwdf == null || !pwdf.shouldRetry(resource))
+                        throw e;
+                }
+            }
 //            throw new IOException("Cannot read encrypted keypair with " + cipherName + " yet.");
         }
     }
@@ -124,12 +138,17 @@ public class OpenSSHKeyV1KeyFile extends BaseFileKeyProvider {
     private void initializeCipher(String kdfName, byte[] kdfOptions, Cipher cipher) throws Buffer.BufferException {
         if (kdfName.equals(BCRYPT)) {
             PlainBuffer opts = new PlainBuffer(kdfOptions);
-            CharBuffer charBuffer = CharBuffer.wrap(pwdf.reqPassword(null));
-            ByteBuffer byteBuffer = Charset.forName("UTF-8").encode(charBuffer);
-            byte[] passphrase = Arrays.copyOfRange(byteBuffer.array(),
-                    byteBuffer.position(), byteBuffer.limit());
+            byte[] passphrase = new byte[0];
+            if (pwdf != null) {
+                CharBuffer charBuffer = CharBuffer.wrap(pwdf.reqPassword(null));
+                ByteBuffer byteBuffer = Charset.forName("UTF-8").encode(charBuffer);
+                passphrase = Arrays.copyOfRange(byteBuffer.array(), byteBuffer.position(), byteBuffer.limit());
+                Arrays.fill(charBuffer.array(), '\u0000');
+                Arrays.fill(byteBuffer.array(), (byte) 0);
+            }
             byte[] keyiv = new byte[48];
             new BCrypt().pbkdf(passphrase, opts.readBytes(), opts.readUInt32AsInt(), keyiv);
+            Arrays.fill(passphrase, (byte) 0);
             byte[] key = Arrays.copyOfRange(keyiv, 0, 32);
             byte[] iv = Arrays.copyOfRange(keyiv, 32, 48);
             cipher.init(Cipher.Mode.Decrypt, key, iv);
@@ -141,6 +160,8 @@ public class OpenSSHKeyV1KeyFile extends BaseFileKeyProvider {
     private Cipher createCipher(String cipherName) {
         if (cipherName.equals(BlockCiphers.AES256CTR().getName())) {
             return BlockCiphers.AES256CTR().create();
+        } else if (cipherName.equals(BlockCiphers.AES256CBC().getName())) {
+            return BlockCiphers.AES256CBC().create();
         }
         throw new IllegalStateException("Cipher '" + cipherName + "' not currently implemented for openssh-key-v1 format");
     }
@@ -176,18 +197,45 @@ public class OpenSSHKeyV1KeyFile extends BaseFileKeyProvider {
         int checkInt1 = keyBuffer.readUInt32AsInt(); // uint32 checkint1
         int checkInt2 = keyBuffer.readUInt32AsInt(); // uint32 checkint2
         if (checkInt1 != checkInt2) {
-            throw new IOException("The checkInts differed, the key was not correctly decoded.");
+            throw new KeyDecryptionFailedException();
         }
         // The private key section contains both the public key and the private key
         String keyType = keyBuffer.readString(); // string keytype
-        logger.info("Read key type: {}", keyType);
+        KeyType kt = KeyType.fromString(keyType);
+        logger.info("Read key type: {}", keyType, kt);
+        KeyPair kp;
+        switch (kt) {
+            case ED25519:
+                keyBuffer.readBytes(); // string publickey (again...)
+                keyBuffer.readUInt32(); // length of privatekey+publickey
+                byte[] privKey = new byte[32];
+                keyBuffer.readRawBytes(privKey); // string privatekey
+                keyBuffer.readRawBytes(new byte[32]); // string publickey (again...)
+                kp = new KeyPair(publicKey, new EdDSAPrivateKey(new EdDSAPrivateKeySpec(privKey, EdDSANamedCurveTable.getByName("Ed25519"))));
+                break;
+            case RSA:
+                BigInteger n = keyBuffer.readMPInt(); // Modulus
+                keyBuffer.readMPInt(); // Public Exponent
+                BigInteger d = keyBuffer.readMPInt(); // Private Exponent
+                keyBuffer.readMPInt(); // iqmp (q^-1 mod p)
+                keyBuffer.readMPInt(); // p (Prime 1)
+                keyBuffer.readMPInt(); // q (Prime 2)
+                kp = new KeyPair(publicKey, SecurityUtils.getKeyFactory(KeyAlgorithm.RSA).generatePrivate(new RSAPrivateKeySpec(n, d)));
+                break;
+            case ECDSA256:
+                kp = new KeyPair(publicKey, createECDSAPrivateKey(kt, keyBuffer, "P-256"));
+                break;
+            case ECDSA384:
+                kp = new KeyPair(publicKey, createECDSAPrivateKey(kt, keyBuffer, "P-384"));
+                break;
+            case ECDSA521:
+                kp = new KeyPair(publicKey, createECDSAPrivateKey(kt, keyBuffer, "P-521"));
+                break;
 
-        byte[] pubKey = keyBuffer.readBytes(); // string publickey (again...)
-        keyBuffer.readUInt32();
-        byte[] privKey = new byte[32];
-        keyBuffer.readRawBytes(privKey); // string privatekey
-        keyBuffer.readRawBytes(new byte[32]); // string publickey (again...)
-        String comment = keyBuffer.readString(); // string comment
+            default:
+                throw new IOException("Cannot decode keytype " + keyType + " in openssh-key-v1 files (yet).");
+        }
+        keyBuffer.readString(); // string comment
         byte[] padding = new byte[keyBuffer.available()];
         keyBuffer.readRawBytes(padding); // char[] padding
         for (int i = 0; i < padding.length; i++) {
@@ -195,6 +243,16 @@ public class OpenSSHKeyV1KeyFile extends BaseFileKeyProvider {
                 throw new IOException("Padding of key format contained wrong byte at position: " + i);
             }
         }
-        return new KeyPair(publicKey, new EdDSAPrivateKey(new EdDSAPrivateKeySpec(privKey, EdDSANamedCurveTable.getByName("Ed25519"))));
+        return kp;
+    }
+
+    private PrivateKey createECDSAPrivateKey(KeyType kt, PlainBuffer buffer, String name) throws GeneralSecurityException, Buffer.BufferException {
+        kt.readPubKeyFromBuffer(buffer); // Public key
+        BigInteger s = new BigInteger(1, buffer.readBytes());
+        X9ECParameters ecParams = NISTNamedCurves.getByName(name);
+        ECNamedCurveSpec ecCurveSpec = new ECNamedCurveSpec(name, ecParams.getCurve(), ecParams.getG(), ecParams.getN());
+        ECPrivateKeySpec pks = new ECPrivateKeySpec(s, ecCurveSpec);
+        return SecurityUtils.getKeyFactory(KeyAlgorithm.ECDSA).generatePrivate(pks);
+
     }
 }

src/main/java/net/schmizz/concurrent/ErrorDeliveryUtil.java

@@ -19,23 +19,23 @@ import java.util.Collection;
 
 public class ErrorDeliveryUtil {
 
-    public static void alertPromises(Throwable x, Promise... promises) {
-        for (Promise p : promises)
+    public static void alertPromises(Throwable x, Promise<?, ?>... promises) {
+        for (Promise<?, ?> p : promises)
             p.deliverError(x);
     }
 
-    public static void alertPromises(Throwable x, Collection<? extends Promise> promises) {
-        for (Promise p : promises)
+    public static void alertPromises(Throwable x, Collection<? extends Promise<?, ?>> promises) {
+        for (Promise<?, ?> p : promises)
             p.deliverError(x);
     }
 
-    public static void alertEvents(Throwable x, Event... events) {
-        for (Event e : events)
+    public static void alertEvents(Throwable x, Event<?>... events) {
+        for (Event<?> e : events)
             e.deliverError(x);
     }
 
-    public static void alertEvents(Throwable x, Collection<? extends Event> events) {
-        for (Event e : events)
+    public static void alertEvents(Throwable x, Collection<? extends Event<?>> events) {
+        for (Event<?> e : events)
             e.deliverError(x);
     }
 

src/main/java/net/schmizz/concurrent/ExceptionChainer.java

@@ -26,7 +26,7 @@ package net.schmizz.concurrent;
  *         if (t instanceof SomeException)
  *             return (SomeException) t;
  *         else
- *             return new SomeExcepion(t);
+ *             return new SomeException(t);
  *     }
  * };
  * </pre>

src/main/java/net/schmizz/keepalive/KeepAlive.java

@@ -30,6 +30,7 @@ public abstract class KeepAlive extends Thread {
         this.conn = conn;
         log = conn.getTransport().getConfig().getLoggerFactory().getLogger(getClass());
         setName(name);
+        setDaemon(true);
     }
 
     public synchronized int getKeepAliveInterval() {

src/main/java/net/schmizz/sshj/AndroidConfig.java

@@ -15,14 +15,15 @@
  */
 package net.schmizz.sshj;
 
-import com.hierynomus.sshj.signature.SignatureEdDSA;
-
+import com.hierynomus.sshj.key.KeyAlgorithm;
+import com.hierynomus.sshj.key.KeyAlgorithms;
+import net.schmizz.sshj.common.Factory;
 import net.schmizz.sshj.common.SecurityUtils;
-import net.schmizz.sshj.signature.SignatureDSA;
-import net.schmizz.sshj.signature.SignatureRSA;
 import net.schmizz.sshj.transport.random.JCERandom;
 import net.schmizz.sshj.transport.random.SingletonRandomFactory;
 
+import java.util.Arrays;
+
 /**
  * Registers SpongyCastle as JCE provider.
  */
@@ -33,11 +34,14 @@ public class AndroidConfig
         SecurityUtils.registerSecurityProvider("org.spongycastle.jce.provider.BouncyCastleProvider");
     }
 
-    // don't add ECDSA
-    protected void initSignatureFactories() {
-        setSignatureFactories(new SignatureRSA.Factory(), new SignatureDSA.Factory(),
-                // but add EdDSA
-                new SignatureEdDSA.Factory());
+
+    @Override
+    protected void initKeyAlgorithms() {
+        setKeyAlgorithms(Arrays.<Factory.Named<KeyAlgorithm>>asList(
+                KeyAlgorithms.EdDSA25519(),
+                KeyAlgorithms.SSHRSA(),
+                KeyAlgorithms.SSHDSA()
+        ));
     }
 
     @Override

src/main/java/net/schmizz/sshj/Config.java

@@ -15,6 +15,7 @@
  */
 package net.schmizz.sshj;
 
+import com.hierynomus.sshj.key.KeyAlgorithm;
 import net.schmizz.keepalive.KeepAliveProvider;
 import net.schmizz.sshj.common.Factory;
 import net.schmizz.sshj.common.LoggerFactory;
@@ -77,11 +78,11 @@ public interface Config {
     Factory<Random> getRandomFactory();
 
     /**
-     * Retrieve the list of named factories for {@link Signature}
+     * Retrieve the list of named factories for {@link com.hierynomus.sshj.key.KeyAlgorithm}
      *
-     * @return a list of named {@link Signature} factories
+     * @return a list of named {@link com.hierynomus.sshj.key.KeyAlgorithm} factories
      */
-    List<Factory.Named<Signature>> getSignatureFactories();
+    List<Factory.Named<KeyAlgorithm>> getKeyAlgorithms();
 
     /**
      * Returns the software version information for identification during SSH connection initialization. For example,
@@ -132,11 +133,11 @@ public interface Config {
     void setRandomFactory(Factory<Random> randomFactory);
 
     /**
-     * Set the named factories for {@link Signature}.
+     * Set the named factories for {@link KeyAlgorithm}.
      *
-     * @param signatureFactories a list of named factories
+     * @param keyAlgorithms a list of named factories
      */
-    void setSignatureFactories(List<Factory.Named<Signature>> signatureFactories);
+    void setKeyAlgorithms(List<Factory.Named<KeyAlgorithm>> keyAlgorithms);
 
     /**
      * Set the software version information for identification during SSH connection initialization. For example, {@code
@@ -160,7 +161,7 @@ public interface Config {
     /**
      * Gets whether the client should first wait for a received server ident, before sending the client ident.
      * <p/>
-     * <stong>NB:</stong> This is non-standard behaviour, and can potentially deadlock if the server also waits on the client ident.
+     * <strong>NB:</strong> This is non-standard behaviour, and can potentially deadlock if the server also waits on the client ident.
      *
      * The default value is set to false.
      *
@@ -171,7 +172,7 @@ public interface Config {
     /**
      * Sets whether the SSH client should wait for a received server ident, before sending the client ident.
      * <p/>
-     * <stong>NB:</stong> This is non-standard behaviour, and can potentially deadlock if the server also waits on the client ident.
+     * <strong>NB:</strong> This is non-standard behaviour, and can potentially deadlock if the server also waits on the client ident.
 
      * @param waitForServerIdentBeforeSendingClientIdent Whether to wait for the server ident.
      */

src/main/java/net/schmizz/sshj/ConfigImpl.java

@@ -15,10 +15,10 @@
  */
 package net.schmizz.sshj;
 
+import com.hierynomus.sshj.key.KeyAlgorithm;
 import net.schmizz.keepalive.KeepAliveProvider;
 import net.schmizz.sshj.common.Factory;
 import net.schmizz.sshj.common.LoggerFactory;
-import net.schmizz.sshj.signature.Signature;
 import net.schmizz.sshj.transport.cipher.Cipher;
 import net.schmizz.sshj.transport.compression.Compression;
 import net.schmizz.sshj.transport.kex.KeyExchange;
@@ -42,7 +42,7 @@ public class ConfigImpl
     private List<Factory.Named<Cipher>> cipherFactories;
     private List<Factory.Named<Compression>> compressionFactories;
     private List<Factory.Named<MAC>> macFactories;
-    private List<Factory.Named<Signature>> signatureFactories;
+    private List<Factory.Named<KeyAlgorithm>> keyAlgorithms;
     private List<Factory.Named<FileKeyProvider>> fileKeyProviderFactories;
 
     private boolean waitForServerIdentBeforeSendingClientIdent = false;
@@ -78,11 +78,6 @@ public class ConfigImpl
         return randomFactory;
     }
 
-    @Override
-    public List<Factory.Named<Signature>> getSignatureFactories() {
-        return signatureFactories;
-    }
-
     @Override
     public String getVersion() {
         return version;
@@ -138,15 +133,6 @@ public class ConfigImpl
         this.randomFactory = randomFactory;
     }
 
-    public void setSignatureFactories(Factory.Named<Signature>... signatureFactories) {
-        setSignatureFactories(Arrays.asList(signatureFactories));
-    }
-
-    @Override
-    public void setSignatureFactories(List<Factory.Named<Signature>> signatureFactories) {
-        this.signatureFactories = signatureFactories;
-    }
-
     @Override
     public void setVersion(String version) {
         this.version = version;
@@ -172,6 +158,16 @@ public class ConfigImpl
         this.waitForServerIdentBeforeSendingClientIdent = waitForServerIdentBeforeSendingClientIdent;
     }
 
+    @Override
+    public List<Factory.Named<KeyAlgorithm>> getKeyAlgorithms() {
+        return keyAlgorithms;
+    }
+
+    @Override
+    public void setKeyAlgorithms(List<Factory.Named<KeyAlgorithm>> keyAlgorithms) {
+        this.keyAlgorithms = keyAlgorithms;
+    }
+
     @Override
     public LoggerFactory getLoggerFactory() {
         return loggerFactory;

src/main/java/net/schmizz/sshj/DefaultConfig.java

@@ -15,26 +15,26 @@
  */
 package net.schmizz.sshj;
 
-import com.hierynomus.sshj.signature.SignatureEdDSA;
+import com.hierynomus.sshj.key.KeyAlgorithm;
+import com.hierynomus.sshj.key.KeyAlgorithms;
 import com.hierynomus.sshj.transport.cipher.BlockCiphers;
+import com.hierynomus.sshj.transport.cipher.GcmCiphers;
 import com.hierynomus.sshj.transport.cipher.StreamCiphers;
 import com.hierynomus.sshj.transport.kex.DHGroups;
+import com.hierynomus.sshj.transport.kex.ExtInfoClientFactory;
 import com.hierynomus.sshj.transport.kex.ExtendedDHGroups;
+import com.hierynomus.sshj.transport.mac.Macs;
 import com.hierynomus.sshj.userauth.keyprovider.OpenSSHKeyV1KeyFile;
 import net.schmizz.keepalive.KeepAliveProvider;
 import net.schmizz.sshj.common.Factory;
 import net.schmizz.sshj.common.LoggerFactory;
 import net.schmizz.sshj.common.SecurityUtils;
-import net.schmizz.sshj.signature.SignatureDSA;
-import net.schmizz.sshj.signature.SignatureECDSA;
-import net.schmizz.sshj.signature.SignatureRSA;
-import net.schmizz.sshj.transport.cipher.*;
+import net.schmizz.sshj.transport.cipher.Cipher;
 import net.schmizz.sshj.transport.compression.NoneCompression;
 import net.schmizz.sshj.transport.kex.Curve25519SHA256;
 import net.schmizz.sshj.transport.kex.DHGexSHA1;
 import net.schmizz.sshj.transport.kex.DHGexSHA256;
 import net.schmizz.sshj.transport.kex.ECDHNistP;
-import net.schmizz.sshj.transport.mac.*;
 import net.schmizz.sshj.transport.random.BouncyCastleRandom;
 import net.schmizz.sshj.transport.random.JCERandom;
 import net.schmizz.sshj.transport.random.SingletonRandomFactory;
@@ -44,7 +44,6 @@ import net.schmizz.sshj.userauth.keyprovider.PKCS8KeyFile;
 import net.schmizz.sshj.userauth.keyprovider.PuTTYKeyFile;
 import org.slf4j.Logger;
 
-import java.io.IOException;
 import java.util.*;
 
 /**
@@ -57,7 +56,7 @@ import java.util.*;
  * <li>{@link net.schmizz.sshj.ConfigImpl#setMACFactories MAC}: {@link net.schmizz.sshj.transport.mac.HMACSHA1}, {@link net.schmizz.sshj.transport.mac.HMACSHA196}, {@link net.schmizz.sshj.transport.mac.HMACMD5}, {@link
  * net.schmizz.sshj.transport.mac.HMACMD596}</li>
  * <li>{@link net.schmizz.sshj.ConfigImpl#setCompressionFactories Compression}: {@link net.schmizz.sshj.transport.compression.NoneCompression}</li>
- * <li>{@link net.schmizz.sshj.ConfigImpl#setSignatureFactories Signature}: {@link net.schmizz.sshj.signature.SignatureRSA}, {@link net.schmizz.sshj.signature.SignatureDSA}</li>
+ * <li>{@link net.schmizz.sshj.ConfigImpl#setKeyAlgorithms KeyAlgorithm}: {@link net.schmizz.sshj.signature.SignatureRSA}, {@link net.schmizz.sshj.signature.SignatureDSA}</li>
  * <li>{@link net.schmizz.sshj.ConfigImpl#setRandomFactory PRNG}: {@link net.schmizz.sshj.transport.random.BouncyCastleRandom}* or {@link net.schmizz.sshj.transport.random.JCERandom}</li>
  * <li>{@link net.schmizz.sshj.ConfigImpl#setFileKeyProviderFactories Key file support}: {@link net.schmizz.sshj.userauth.keyprovider.PKCS8KeyFile}*, {@link
  * net.schmizz.sshj.userauth.keyprovider.OpenSSHKeyFile}*</li>
@@ -77,12 +76,12 @@ public class DefaultConfig
         setVersion(readVersionFromProperties());
         final boolean bouncyCastleRegistered = SecurityUtils.isBouncyCastleRegistered();
         initKeyExchangeFactories(bouncyCastleRegistered);
+        initKeyAlgorithms();
         initRandomFactory(bouncyCastleRegistered);
         initFileKeyProviderFactories(bouncyCastleRegistered);
         initCipherFactories();
         initCompressionFactories();
         initMACFactories();
-        initSignatureFactories();
         setKeepAliveProvider(KeepAliveProvider.HEARTBEAT);
     }
 
@@ -100,13 +99,15 @@ public class DefaultConfig
 
     @Override
     public void setLoggerFactory(LoggerFactory loggerFactory) {
-	super.setLoggerFactory(loggerFactory);
-	log = loggerFactory.getLogger(getClass());
+        super.setLoggerFactory(loggerFactory);
+        log = loggerFactory.getLogger(getClass());
     }
 
     protected void initKeyExchangeFactories(boolean bouncyCastleRegistered) {
         if (bouncyCastleRegistered) {
-            setKeyExchangeFactories(new Curve25519SHA256.Factory(),
+            setKeyExchangeFactories(
+                    new Curve25519SHA256.Factory(),
+                    new Curve25519SHA256.FactoryLibSsh(),
                     new DHGexSHA256.Factory(),
                     new ECDHNistP.Factory521(),
                     new ECDHNistP.Factory384(),
@@ -126,15 +127,29 @@ public class DefaultConfig
                     ExtendedDHGroups.Group16SHA256(),
                     ExtendedDHGroups.Group16SHA384AtSSH(),
                     ExtendedDHGroups.Group16SHA512AtSSH(),
-                    ExtendedDHGroups.Group18SHA512AtSSH());
+                    ExtendedDHGroups.Group18SHA512AtSSH(),
+                    new ExtInfoClientFactory());
         } else {
             setKeyExchangeFactories(DHGroups.Group1SHA1(), new DHGexSHA1.Factory());
         }
     }
 
+    protected void initKeyAlgorithms() {
+        setKeyAlgorithms(Arrays.<Factory.Named<KeyAlgorithm>>asList(
+                KeyAlgorithms.EdDSA25519(),
+                KeyAlgorithms.ECDSASHANistp521(),
+                KeyAlgorithms.ECDSASHANistp384(),
+                KeyAlgorithms.ECDSASHANistp256(),
+                KeyAlgorithms.RSASHA512(),
+                KeyAlgorithms.RSASHA256(),
+                KeyAlgorithms.SSHRSACertV01(),
+                KeyAlgorithms.SSHDSSCertV01(),
+                KeyAlgorithms.SSHRSA(),
+                KeyAlgorithms.SSHDSA()));
+    }
+
     protected void initRandomFactory(boolean bouncyCastleRegistered) {
-        setRandomFactory(new SingletonRandomFactory(bouncyCastleRegistered
-                ? new BouncyCastleRandom.Factory() : new JCERandom.Factory()));
+        setRandomFactory(new SingletonRandomFactory(new JCERandom.Factory()));
     }
 
     protected void initFileKeyProviderFactories(boolean bouncyCastleRegistered) {
@@ -157,6 +172,8 @@ public class DefaultConfig
                 BlockCiphers.AES192CTR(),
                 BlockCiphers.AES256CBC(),
                 BlockCiphers.AES256CTR(),
+                GcmCiphers.AES128GCM(),
+                GcmCiphers.AES256GCM(),
                 BlockCiphers.BlowfishCBC(),
                 BlockCiphers.BlowfishCTR(),
                 BlockCiphers.Cast128CBC(),
@@ -206,25 +223,24 @@ public class DefaultConfig
         log.debug("Available cipher factories: {}", avail);
     }
 
-    protected void initSignatureFactories() {
-        setSignatureFactories(
-                new SignatureECDSA.Factory256(),
-                new SignatureECDSA.Factory384(),
-                new SignatureECDSA.Factory521(),
-                new SignatureRSA.Factory(),
-                new SignatureDSA.Factory(),
-                new SignatureEdDSA.Factory()
-        );
-    }
-
     protected void initMACFactories() {
         setMACFactories(
-                new HMACSHA1.Factory(),
-                new HMACSHA196.Factory(),
-                new HMACMD5.Factory(),
-                new HMACMD596.Factory(),
-                new HMACSHA2256.Factory(),
-                new HMACSHA2512.Factory()
+                Macs.HMACSHA1(),
+                Macs.HMACSHA1Etm(),
+                Macs.HMACSHA196(),
+                Macs.HMACSHA196Etm(),
+                Macs.HMACMD5(),
+                Macs.HMACMD5Etm(),
+                Macs.HMACMD596(),
+                Macs.HMACMD596Etm(),
+                Macs.HMACSHA2256(),
+                Macs.HMACSHA2256Etm(),
+                Macs.HMACSHA2512(),
+                Macs.HMACSHA2512Etm(),
+                Macs.HMACRIPEMD160(),
+                Macs.HMACRIPEMD160Etm(),
+                Macs.HMACRIPEMD16096(),
+                Macs.HMACRIPEMD160OpenSsh()
         );
     }
 

src/main/java/net/schmizz/sshj/SSHClient.java

@@ -19,10 +19,7 @@ import net.schmizz.sshj.common.*;
 import net.schmizz.sshj.connection.Connection;
 import net.schmizz.sshj.connection.ConnectionException;
 import net.schmizz.sshj.connection.ConnectionImpl;
-import net.schmizz.sshj.connection.channel.direct.LocalPortForwarder;
-import net.schmizz.sshj.connection.channel.direct.Session;
-import net.schmizz.sshj.connection.channel.direct.SessionChannel;
-import net.schmizz.sshj.connection.channel.direct.SessionFactory;
+import net.schmizz.sshj.connection.channel.direct.*;
 import net.schmizz.sshj.connection.channel.forwarded.ConnectListener;
 import net.schmizz.sshj.connection.channel.forwarded.RemotePortForwarder;
 import net.schmizz.sshj.connection.channel.forwarded.RemotePortForwarder.ForwardedTCPIPChannel;
@@ -61,7 +58,6 @@ import java.io.IOException;
 import java.net.ServerSocket;
 import java.nio.charset.Charset;
 import java.security.KeyPair;
-import java.security.PublicKey;
 import java.util.*;
 
 /**
@@ -360,8 +356,7 @@ public class SSHClient
      * @throws TransportException if there was a transport-layer error
      */
     public void authPublickey(String username, KeyProvider... keyProviders)
-            throws UserAuthException,
-                   TransportException {
+            throws UserAuthException, TransportException {
         authPublickey(username, Arrays.<KeyProvider>asList(keyProviders));
     }
 
@@ -520,7 +515,7 @@ public class SSHClient
     }
 
     /**
-     * Utility function for createing a {@link KeyProvider} instance from given location on the file system. Creates a
+     * Utility function for creating a {@link KeyProvider} instance from given location on the file system. Creates a
      * one-off {@link PasswordFinder} using {@link PasswordUtils#createOneOff(char[])}, and calls {@link
      * #loadKeys(String, PasswordFinder)}.
      *
@@ -666,13 +661,27 @@ public class SSHClient
      *
      * @return a {@link LocalPortForwarder}
      */
-    public LocalPortForwarder newLocalPortForwarder(LocalPortForwarder.Parameters parameters,
+    public LocalPortForwarder newLocalPortForwarder(Parameters parameters,
                                                     ServerSocket serverSocket) {
         LocalPortForwarder forwarder = new LocalPortForwarder(conn, parameters, serverSocket, loggerFactory);
         forwarders.add(forwarder);
         return forwarder;
     }
 
+    /** Create a {@link DirectConnection} channel that connects to a remote address from the server.
+     *
+     * This can be used to open a tunnel to, for example, an HTTP server that is only
+     * accessible from the SSH server, or opening an SSH connection via a 'jump' server.
+     *
+     * @param hostname name of the host to connect to from the server.
+     * @param port remote port number.
+     */
+    public DirectConnection newDirectConnection(String hostname, int port) throws IOException {
+        DirectConnection tunnel = new DirectConnection(conn, hostname, port);
+        tunnel.open();
+        return tunnel;
+    }
+
     /**
      * Register a {@code listener} for handling forwarded X11 channels. Without having done this, an incoming X11
      * forwarding will be summarily rejected.
@@ -713,6 +722,19 @@ public class SSHClient
         return new SFTPClient(new SFTPEngine(this).init());
     }
 
+    /**
+     * Stateful FTP client is required in order to connect to Serv-U FTP servers.
+     * @return Instantiated {@link SFTPClient} implementation.
+     *
+     * @throws IOException if there is an error starting the {@code sftp} subsystem
+     */
+    public SFTPClient newStatefulSFTPClient()
+            throws IOException {
+        checkConnected();
+        checkAuthenticated();
+        return new StatefulSFTPClient(new SFTPEngine(this).init());
+    }
+
     /**
      * Does key re-exchange.
      *
@@ -745,7 +767,7 @@ public class SSHClient
 
     /**
      * Adds {@code zlib} compression to preferred compression algorithms. There is no guarantee that it will be
-     * successfully negotiatied.
+     * successfully negotiated.
      * <p/>
      * If the client is already connected renegotiation is done; otherwise this method simply returns (and compression
      * will be negotiated during connection establishment).

src/main/java/net/schmizz/sshj/SocketClient.java

@@ -17,6 +17,8 @@ package net.schmizz.sshj;
 
 import com.hierynomus.sshj.backport.JavaVersion;
 import com.hierynomus.sshj.backport.Jdk7HttpProxySocket;
+import net.schmizz.sshj.connection.channel.Channel;
+import net.schmizz.sshj.connection.channel.direct.DirectConnection;
 
 import javax.net.SocketFactory;
 import java.io.IOException;
@@ -43,11 +45,18 @@ public abstract class SocketClient {
     private int timeout = 0;
 
     private String hostname;
+    private int port;
+
+    private boolean tunneled = false;
 
     SocketClient(int defaultPort) {
         this.defaultPort = defaultPort;
     }
 
+    protected InetSocketAddress makeInetSocketAddress(String hostname, int port) {
+        return new InetSocketAddress(hostname, port);
+    }
+
     /**
      * Connect to a host via a proxy.
      * @param hostname The host name to connect to.
@@ -71,13 +80,14 @@ public abstract class SocketClient {
     @Deprecated
     public void connect(String hostname, int port, Proxy proxy) throws IOException {
         this.hostname = hostname;
+        this.port = port;
         if (JavaVersion.isJava7OrEarlier() && proxy.type() == Proxy.Type.HTTP) {
             // Java7 and earlier have no support for HTTP Connect proxies, return our custom socket.
             socket = new Jdk7HttpProxySocket(proxy);
         } else {
             socket = new Socket(proxy);
         }
-        socket.connect(new InetSocketAddress(hostname, port), connectTimeout);
+        socket.connect(makeInetSocketAddress(hostname, port), connectTimeout);
         onConnect();
     }
 
@@ -103,6 +113,7 @@ public abstract class SocketClient {
      */
     @Deprecated
     public void connect(InetAddress host, int port, Proxy proxy) throws IOException {
+        this.port = port;
         if (JavaVersion.isJava7OrEarlier() && proxy.type() == Proxy.Type.HTTP) {
             // Java7 and earlier have no support for HTTP Connect proxies, return our custom socket.
             socket = new Jdk7HttpProxySocket(proxy);
@@ -122,8 +133,9 @@ public abstract class SocketClient {
             connect(InetAddress.getByName(null), port);
         } else {
             this.hostname = hostname;
+            this.port = port;
             socket = socketFactory.createSocket();
-            socket.connect(new InetSocketAddress(hostname, port), connectTimeout);
+            socket.connect(makeInetSocketAddress(hostname, port), connectTimeout);
             onConnect();
         }
     }
@@ -133,18 +145,34 @@ public abstract class SocketClient {
             connect(InetAddress.getByName(null), port, localAddr, localPort);
         } else {
             this.hostname = hostname;
+            this.port = port;
             socket = socketFactory.createSocket();
             socket.bind(new InetSocketAddress(localAddr, localPort));
-            socket.connect(new InetSocketAddress(hostname, port), connectTimeout);
+            socket.connect(makeInetSocketAddress(hostname, port), connectTimeout);
             onConnect();
         }
     }
 
+    public void connectVia(Channel channel, String hostname, int port) throws IOException {
+        this.hostname = hostname;
+        this.port = port;
+        this.input = channel.getInputStream();
+        this.output = channel.getOutputStream();
+        this.tunneled = true;
+        onConnect();
+    }
+
+    /** Connect to a remote address via a direct TCP/IP connection from the server. */
+    public void connectVia(DirectConnection directConnection) throws IOException {
+        connectVia(directConnection, directConnection.getRemoteHost(), directConnection.getRemotePort());
+    }
+
     public void connect(InetAddress host) throws IOException {
         connect(host, defaultPort);
     }
 
     public void connect(InetAddress host, int port) throws IOException {
+        this.port = port;
         socket = socketFactory.createSocket();
         socket.connect(new InetSocketAddress(host, port), connectTimeout);
         onConnect();
@@ -152,6 +180,7 @@ public abstract class SocketClient {
 
     public void connect(InetAddress host, int port, InetAddress localAddr, int localPort)
             throws IOException {
+        this.port = port;
         socket = socketFactory.createSocket();
         socket.bind(new InetSocketAddress(localAddr, localPort));
         socket.connect(new InetSocketAddress(host, port), connectTimeout);
@@ -174,15 +203,15 @@ public abstract class SocketClient {
     }
 
     public boolean isConnected() {
-        return (socket != null) && socket.isConnected();
+        return tunneled || ((socket != null) && socket.isConnected());
     }
 
     public int getLocalPort() {
-        return socket.getLocalPort();
+        return tunneled ? 65536 : socket.getLocalPort();
     }
 
     public InetAddress getLocalAddress() {
-        return socket.getLocalAddress();
+        return socket == null ? null : socket.getLocalAddress();
     }
 
     public String getRemoteHostname() {
@@ -190,11 +219,11 @@ public abstract class SocketClient {
     }
 
     public int getRemotePort() {
-        return socket.getPort();
+        return socket == null ? this.port : socket.getPort();
     }
 
     public InetAddress getRemoteAddress() {
-        return socket.getInetAddress();
+        return socket == null ? null : socket.getInetAddress();
     }
 
     public void setSocketFactory(SocketFactory factory) {
@@ -238,9 +267,11 @@ public abstract class SocketClient {
     }
 
     void onConnect() throws IOException {
-        socket.setSoTimeout(timeout);
-        input = socket.getInputStream();
-        output = socket.getOutputStream();
+        if (socket != null) {
+            socket.setSoTimeout(timeout);
+            input = socket.getInputStream();
+            output = socket.getOutputStream();
+        }
     }
 
 }

src/main/java/net/schmizz/sshj/common/Base64.java

@@ -1,5 +1,6 @@
 package net.schmizz.sshj.common;
 
+
 /**
  * <p>Encodes and decodes to and from Base64 notation.</p>
  * <p>Homepage: <a href="http://iharder.net/base64">http://iharder.net/base64</a>.</p>
@@ -76,7 +77,7 @@ package net.schmizz.sshj.common;
  *      <a href="http://www.faqs.org/rfcs/rfc3548.html">RFC3548</a>.</li>
  *    <li><em>Throws exceptions instead of returning null values.</em> Because some operations
  *      (especially those that may permit the GZIP option) use IO streams, there
- *      is a possiblity of an java.io.IOException being thrown. After some discussion and
+ *      is a possibility of an java.io.IOException being thrown. After some discussion and
  *      thought, I've changed the behavior of the methods to throw java.io.IOExceptions
  *      rather than return null if ever there's an error. I think this is more
  *      appropriate, though it will require some changes to your code. Sorry,
@@ -476,7 +477,7 @@ public class Base64
      * anywhere along their length by specifying
      * <var>srcOffset</var> and <var>destOffset</var>.
      * This method does not check to make sure your arrays
-     * are large enough to accomodate <var>srcOffset</var> + 3 for
+     * are large enough to accommodate <var>srcOffset</var> + 3 for
      * the <var>source</var> array or <var>destOffset</var> + 4 for
      * the <var>destination</var> array.
      * The actual number of significant bytes in your array is
@@ -1007,7 +1008,7 @@ public class Base64
      * anywhere along their length by specifying
      * <var>srcOffset</var> and <var>destOffset</var>.
      * This method does not check to make sure your arrays
-     * are large enough to accomodate <var>srcOffset</var> + 4 for
+     * are large enough to accommodate <var>srcOffset</var> + 4 for
      * the <var>source</var> array or <var>destOffset</var> + 3 for
      * the <var>destination</var> array.
      * This method returns the actual number of bytes that
@@ -1359,7 +1360,7 @@ public class Base64
                     @Override
                     public Class<?> resolveClass(java.io.ObjectStreamClass streamClass)
                             throws java.io.IOException, ClassNotFoundException {
-                        Class c = Class.forName(streamClass.getName(), false, loader);
+                        Class<?> c = Class.forName(streamClass.getName(), false, loader);
                         if( c == null ){
                             return super.resolveClass(streamClass);
                         } else {
@@ -1928,7 +1929,7 @@ public class Base64
             if( suspendEncoding ) {
                 this.out.write( theByte );
                 return;
-            }   // end if: supsended
+            }   // end if: suspended
 
             // Encode?
             if( encode ) {
@@ -1983,7 +1984,7 @@ public class Base64
             if( suspendEncoding ) {
                 this.out.write( theBytes, off, len );
                 return;
-            }   // end if: supsended
+            }   // end if: suspended
 
             for( int i = 0; i < len; i++ ) {
                 write( theBytes[ off + i ] );

src/main/java/net/schmizz/sshj/common/Buffer.java

@@ -21,6 +21,7 @@ import java.security.GeneralSecurityException;
 import java.security.PublicKey;
 import java.util.Arrays;
 
+@SuppressWarnings("serial")
 public class Buffer<T extends Buffer<T>> {
 
     public static class BufferException
@@ -55,10 +56,10 @@ public class Buffer<T extends Buffer<T>> {
     public static final int DEFAULT_SIZE = 256;
 
     /** The maximum valid size of buffer (i.e. biggest power of two that can be represented as an int - 2^30) */
-    public static final int MAX_SIZE = (1 << 30); 
+    public static final int MAX_SIZE = (1 << 30);
 
     /** Maximum size of a uint64 */
-    private static final BigInteger MAX_UINT64_VALUE = BigInteger.ONE
+    public static final BigInteger MAX_UINT64_VALUE = BigInteger.ONE
                                                             .shiftLeft(64)
                                                             .subtract(BigInteger.ONE);
 
@@ -66,7 +67,7 @@ public class Buffer<T extends Buffer<T>> {
         int j = 1;
         while (j < i) {
             j <<= 1;
-            if (j <= 0) throw new IllegalArgumentException("Cannot get next power of 2; "+i+" is too large"); 
+            if (j <= 0) throw new IllegalArgumentException("Cannot get next power of 2; "+i+" is too large");
         }
         return j;
     }
@@ -372,6 +373,7 @@ public class Buffer<T extends Buffer<T>> {
 
     @SuppressWarnings("unchecked")
     private T putUInt64Unchecked(long uint64) {
+        ensureCapacity(8);
         data[wpos++] = (byte) (uint64 >> 56);
         data[wpos++] = (byte) (uint64 >> 48);
         data[wpos++] = (byte) (uint64 >> 40);
@@ -452,11 +454,14 @@ public class Buffer<T extends Buffer<T>> {
     public T putSensitiveString(char[] str) {
         if (str == null)
             return putString("");
-        putUInt32(str.length);
-        ensureCapacity(str.length);
-        for (char c : str)
-            data[wpos++] = (byte) c;
-        Arrays.fill(str, ' ');
+        // RFC 4252, Section 8 says: passwords should be encoded as UTF-8.
+        // RFC 4256, Section 3.4 says: keyboard-interactive information responses should be encoded as UTF-8.
+        byte[] utf8 = ByteArrayUtils.encodeSensitiveStringToUtf8(str);
+        putUInt32(utf8.length);
+        ensureCapacity(utf8.length);
+        for (byte c : utf8)
+            data[wpos++] = c;
+        Arrays.fill(utf8, (byte) 0);
         return (T) this;
     }
 

src/main/java/net/schmizz/sshj/common/ByteArrayUtils.java

@@ -15,6 +15,12 @@
  */
 package net.schmizz.sshj.common;
 
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetEncoder;
+import java.util.Arrays;
+
 /** Utility functions for byte arrays. */
 public class ByteArrayUtils {
 
@@ -124,4 +130,26 @@ public class ByteArrayUtils {
         }
         throw new IllegalArgumentException("Digit '" + c + "' out of bounds [0-9a-fA-F]");
     }
+
+    /**
+     * Converts a char-array to UTF-8 byte-array and then blanks out source array and all intermediate arrays.
+     * <p/>
+     * This is useful when a plaintext password needs to be encoded as UTF-8.
+     *
+     * @param str A not-null string as a character array.
+     *
+     * @return UTF-8 bytes of the string
+     */
+    public static byte[] encodeSensitiveStringToUtf8(char[] str) {
+        CharsetEncoder charsetEncoder = Charset.forName("UTF-8").newEncoder();
+        ByteBuffer utf8Buffer = ByteBuffer.allocate((int) (str.length * charsetEncoder.maxBytesPerChar()));
+        assert utf8Buffer.hasArray();
+        charsetEncoder.encode(CharBuffer.wrap(str), utf8Buffer, true);
+        Arrays.fill(str, ' ');
+
+        byte[] utf8Bytes = new byte[utf8Buffer.position()];
+        System.arraycopy(utf8Buffer.array(), 0, utf8Bytes, 0, utf8Bytes.length);
+        Arrays.fill(utf8Buffer.array(), (byte) 0);
+        return utf8Bytes;
+    }
 }

src/main/java/net/schmizz/sshj/common/ECDSAVariationsAdapter.java

@@ -15,6 +15,7 @@
  */
 package net.schmizz.sshj.common;
 
+import com.hierynomus.sshj.common.KeyAlgorithm;
 import com.hierynomus.sshj.secg.SecgUtils;
 import org.bouncycastle.asn1.nist.NISTNamedCurves;
 import org.bouncycastle.asn1.x9.X9ECParameters;
@@ -87,7 +88,7 @@ class ECDSAVariationsAdapter {
             ECPoint p = new ECPoint(bigX, bigY);
             ECPublicKeySpec publicKeySpec = new ECPublicKeySpec(p, ecCurveSpec);
 
-            KeyFactory keyFactory = KeyFactory.getInstance("ECDSA");
+            KeyFactory keyFactory = KeyFactory.getInstance(KeyAlgorithm.ECDSA);
             return keyFactory.generatePublic(publicKeySpec);
         } catch (Exception ex) {
             throw new GeneralSecurityException(ex);
@@ -103,7 +104,7 @@ class ECDSAVariationsAdapter {
     }
 
     static boolean isECKeyWithFieldSize(Key key, int fieldSize) {
-        return "ECDSA".equals(key.getAlgorithm())
+        return (KeyAlgorithm.ECDSA.equals(key.getAlgorithm()) || KeyAlgorithm.EC_KEYSTORE.equals(key.getAlgorithm()))
                 && fieldSizeFromKey((ECKey) key) == fieldSize;
     }
 

src/main/java/net/schmizz/sshj/common/Factory.java

@@ -26,7 +26,7 @@ import java.util.List;
 public interface Factory<T> {
 
     /**
-     * Inteface for a named factory. Named factories are simply factories that are identified by a name. Such names are
+     * Interface for a named factory. Named factories are simply factories that are identified by a name. Such names are
      * used mainly in SSH algorithm negotiation.
      *
      * @param <T> type of object created by this factory

src/main/java/net/schmizz/sshj/common/KeyType.java

@@ -15,6 +15,7 @@
  */
 package net.schmizz.sshj.common;
 
+import com.hierynomus.sshj.common.KeyAlgorithm;
 import com.hierynomus.sshj.signature.Ed25519PublicKey;
 import com.hierynomus.sshj.userauth.certificate.Certificate;
 import net.i2p.crypto.eddsa.EdDSAPublicKey;
@@ -30,9 +31,7 @@ import java.security.GeneralSecurityException;
 import java.security.Key;
 import java.security.KeyFactory;
 import java.security.PublicKey;
-import java.security.interfaces.DSAPrivateKey;
 import java.security.interfaces.DSAPublicKey;
-import java.security.interfaces.RSAPrivateKey;
 import java.security.interfaces.RSAPublicKey;
 import java.security.spec.DSAPublicKeySpec;
 import java.security.spec.RSAPublicKeySpec;
@@ -53,7 +52,7 @@ public enum KeyType {
             } catch (Buffer.BufferException be) {
                 throw new GeneralSecurityException(be);
             }
-            final KeyFactory keyFactory = SecurityUtils.getKeyFactory("RSA");
+            final KeyFactory keyFactory = SecurityUtils.getKeyFactory(KeyAlgorithm.RSA);
             return keyFactory.generatePublic(new RSAPublicKeySpec(n, e));
         }
 
@@ -66,7 +65,7 @@ public enum KeyType {
 
         @Override
         protected boolean isMyType(Key key) {
-            return (key instanceof RSAPublicKey || key instanceof RSAPrivateKey);
+            return KeyAlgorithm.RSA.equals(key.getAlgorithm());
         }
     },
 
@@ -84,7 +83,7 @@ public enum KeyType {
             } catch (Buffer.BufferException be) {
                 throw new GeneralSecurityException(be);
             }
-            final KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
+            final KeyFactory keyFactory = SecurityUtils.getKeyFactory(KeyAlgorithm.DSA);
             return keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
         }
 
@@ -99,7 +98,7 @@ public enum KeyType {
 
         @Override
         protected boolean isMyType(Key key) {
-            return (key instanceof DSAPublicKey || key instanceof DSAPrivateKey);
+            return KeyAlgorithm.DSA.equals(key.getAlgorithm());
         }
 
     },
@@ -221,6 +220,11 @@ public enum KeyType {
         protected boolean isMyType(Key key) {
             return CertUtils.isCertificateOfType(key, RSA);
         }
+
+        @Override
+        public KeyType getParent() {
+            return RSA;
+        }
     },
 
     /** Signed dsa certificate */
@@ -240,6 +244,11 @@ public enum KeyType {
         protected boolean isMyType(Key key) {
             return CertUtils.isCertificateOfType(key, DSA);
         }
+
+        @Override
+        public KeyType getParent() {
+            return KeyType.DSA;
+        }
     },
 
     /** Unrecognized */
@@ -284,10 +293,24 @@ public enum KeyType {
     protected abstract boolean isMyType(Key key);
 
     public static KeyType fromKey(Key key) {
+        KeyType result = UNKNOWN;
         for (KeyType kt : values())
-            if (kt.isMyType((key)))
-                return kt;
-        return UNKNOWN;
+            if (kt.isMyType((key)) && (result == UNKNOWN || kt.isSubType(result)))
+                result = kt;
+        return result;
+    }
+
+    private boolean isSubType(KeyType keyType) {
+        for (KeyType node = this; node != null; node = node.getParent()) {
+            if (keyType == node) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public KeyType getParent() {
+        return null;
     }
 
     public static KeyType fromString(String sType) {
@@ -315,8 +338,8 @@ public enum KeyType {
                 builder.type(buf.readUInt32());
                 builder.id(buf.readString());
                 builder.validPrincipals(unpackList(buf.readBytes()));
-                builder.validAfter(dateFromEpoch(buf.readUInt64()));
-                builder.validBefore(dateFromEpoch(buf.readUInt64()));
+                builder.validAfter(dateFromEpoch(buf.readUInt64AsBigInteger()));
+                builder.validBefore(dateFromEpoch(buf.readUInt64AsBigInteger()));
                 builder.critOptions(unpackMap(buf.readBytes()));
                 builder.extensions(unpackMap(buf.readBytes()));
                 buf.readString(); // reserved
@@ -364,12 +387,27 @@ public enum KeyType {
             return ((Certificate<PublicKey>) key);
         }
 
-        private static Date dateFromEpoch(long seconds) {
-            return new Date(seconds * 1000);
+        private static Date dateFromEpoch(BigInteger seconds) {
+            BigInteger maxValue = BigInteger.valueOf(Long.MAX_VALUE / 1000);
+            if (seconds.compareTo(maxValue) > 0) {
+                return new Date(maxValue.longValue() * 1000);
+            } else {
+                return new Date(seconds.longValue() * 1000);
+            }
         }
 
-        private static long epochFromDate(Date date) {
-            return date.getTime() / 1000;
+        private static BigInteger epochFromDate(Date date) {
+            long time = date.getTime() / 1000;
+            if (time >= Long.MAX_VALUE / 1000) {
+                // Dealing with the signed longs in Java. Since the protocol requires a unix timestamp in milliseconds,
+                // and since Java can store numbers not bigger than 2^63-1 as `long`, we can't distinguish dates
+                // after `new Date(Long.MAX_VALUE / 1000)`. It's unlikely that someone uses certificate valid until
+                // the 10 January of 294247 year. Supposing that such dates are unlimited.
+                // OpenSSH expects to see 0xFF_FF_FF_FF_FF_FF_FF_FF in such cases.
+                return Buffer.MAX_UINT64_VALUE;
+            } else {
+                return BigInteger.valueOf(time);
+            }
         }
 
         private static String unpackString(byte[] packedString) throws BufferException {

src/main/java/net/schmizz/sshj/common/Message.java

@@ -25,6 +25,7 @@ public enum Message {
     DEBUG(4),
     SERVICE_REQUEST(5),
     SERVICE_ACCEPT(6),
+    EXT_INFO(7),
     KEXINIT(20),
     NEWKEYS(21),
 

src/main/java/net/schmizz/sshj/common/SSHException.java

@@ -23,6 +23,7 @@ import java.io.IOException;
  * Most exceptions in the {@code net.schmizz.sshj} package are instances of this class. An {@link SSHException} is
  * itself an {@link IOException} and can be caught like that if this level of granularity is not desired.
  */
+@SuppressWarnings("serial")
 public class SSHException
         extends IOException {
 

src/main/java/net/schmizz/sshj/common/SSHRuntimeException.java

@@ -16,6 +16,7 @@
 package net.schmizz.sshj.common;
 
 /** Represents unrecoverable exceptions in the {@code net.schmizz.sshj} package. */
+@SuppressWarnings("serial")
 public class SSHRuntimeException
         extends RuntimeException {
 

src/main/java/net/schmizz/sshj/common/SecurityUtils.java

@@ -36,6 +36,8 @@ import javax.crypto.NoSuchPaddingException;
 
 import static java.lang.String.format;
 
+import java.lang.reflect.InvocationTargetException;
+
 /**
  * Static utility method relating to security facilities.
  */
@@ -53,8 +55,8 @@ public class SecurityUtils {
     public static final String SPONGY_CASTLE = "SC";
 
     /*
-    * Security provider identifier. null = default JCE
-    */
+     * Security provider identifier. null = default JCE
+     */
     private static String securityProvider = null;
 
     // relate to BC registration (or SpongyCastle on Android)
@@ -65,13 +67,17 @@ public class SecurityUtils {
         Provider provider = null;
         try {
             Class<?> name = Class.forName(providerClassName);
-            provider = (Provider) name.newInstance();
+            provider = (Provider) name.getDeclaredConstructor().newInstance();
         } catch (ClassNotFoundException e) {
             LOG.info("Security Provider class '{}' not found", providerClassName);
         } catch (InstantiationException e) {
             LOG.info("Security Provider class '{}' could not be created", providerClassName);
         } catch (IllegalAccessException e) {
             LOG.info("Security Provider class '{}' could not be accessed", providerClassName);
+        } catch (InvocationTargetException e) {
+            LOG.info("Security Provider class '{}' could not be created", providerClassName);
+        } catch (NoSuchMethodException e) {
+            LOG.info("Security Provider class '{}' does not have a no-args constructor", providerClassName);
         }
 
         if (provider == null) {
@@ -243,7 +249,14 @@ public class SecurityUtils {
      */
     public static synchronized boolean isBouncyCastleRegistered() {
         register();
-        return BOUNCY_CASTLE.equals(securityProvider) || SPONGY_CASTLE.equals(securityProvider);
+        Provider[] providers = Security.getProviders();
+        for (Provider provider : providers) {
+            String name = provider.getName();
+            if (BOUNCY_CASTLE.equals(name) || SPONGY_CASTLE.equals(name)) {
+                return true;
+            }
+        }
+        return false;
     }
 
     public static synchronized void setRegisterBouncyCastle(boolean registerBouncyCastle) {

src/main/java/net/schmizz/sshj/common/StreamCopier.java

@@ -22,6 +22,7 @@ import org.slf4j.Logger;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.util.concurrent.TimeUnit;
 
 public class StreamCopier {
 
@@ -125,7 +126,7 @@ public class StreamCopier {
         long count = 0;
         int read = 0;
 
-        final long startTime = System.currentTimeMillis();
+        final long startTime = System.nanoTime();
 
         if (length == -1) {
             while ((read = in.read(buf)) != -1) {
@@ -140,7 +141,7 @@ public class StreamCopier {
         if (!keepFlushing)
             out.flush();
 
-        final double timeSeconds = (System.currentTimeMillis() - startTime) / 1000.0;
+        final double timeSeconds = TimeUnit.NANOSECONDS.toMillis (System.nanoTime() - startTime) / 1000.0;
         final double sizeKiB = count / 1024.0;
         log.debug(String.format("%1$,.1f KiB transferred in %2$,.1f seconds (%3$,.2f KiB/s)", sizeKiB, timeSeconds, (sizeKiB / timeSeconds)));
 

src/main/java/net/schmizz/sshj/connection/ConnectionImpl.java

@@ -130,6 +130,9 @@ public class ConnectionImpl
             getChannel(buf).handle(msg, buf);
         } else if (msg.in(80, 90)) {
             switch (msg) {
+                case GLOBAL_REQUEST:
+                    gotGlobalRequest(buf);
+                    break;
                 case REQUEST_SUCCESS:
                     gotGlobalReqResponse(buf);
                     break;
@@ -259,6 +262,20 @@ public class ConnectionImpl
         channels.clear();
     }
 
+    private void gotGlobalRequest(SSHPacket buf)
+            throws ConnectionException, TransportException {
+        try {
+            final String requestName = buf.readString();
+            boolean wantReply = buf.readBoolean();
+            log.debug("Received GLOBAL_REQUEST `{}`; want reply: {}", requestName, wantReply);
+            if (wantReply) {
+                trans.write(new SSHPacket(Message.REQUEST_FAILURE));
+            }
+        } catch (Buffer.BufferException be) {
+            throw new ConnectionException(be);
+        }
+    }
+
     @Override
     public void setTimeoutMs(int timeoutMs) {
         this.timeoutMs = timeoutMs;

src/main/java/net/schmizz/sshj/connection/channel/AbstractChannel.java

@@ -102,7 +102,8 @@ public abstract class AbstractChannel
 
     protected void init(int recipient, long remoteWinSize, long remoteMaxPacketSize) {
         this.recipient = recipient;
-        rwin = new Window.Remote(remoteWinSize, (int) Math.min(remoteMaxPacketSize, REMOTE_MAX_PACKET_SIZE_CEILING), loggerFactory);
+        rwin = new Window.Remote(remoteWinSize, (int) Math.min(remoteMaxPacketSize, REMOTE_MAX_PACKET_SIZE_CEILING),
+            conn.getTimeoutMs(), loggerFactory);
         out = new ChannelOutputStream(this, trans, rwin);
         log.debug("Initialized - {}", this);
     }

src/main/java/net/schmizz/sshj/connection/channel/ChannelOutputStream.java

@@ -150,7 +150,8 @@ public final class ChannelOutputStream extends OutputStream implements ErrorNoti
     }
 
     private void checkClose() throws SSHException {
-        if (closed) {
+        // Check whether either the Stream is closed, or the underlying channel is closed
+        if (closed || !chan.isOpen()) {
             if (error != null)
                 throw error;
             else
@@ -160,7 +161,8 @@ public final class ChannelOutputStream extends OutputStream implements ErrorNoti
 
     @Override
     public synchronized void close() throws IOException {
-        if (!closed) {
+        // Not closed yet, and underlying channel is open to flush the data to.
+        if (!closed && chan.isOpen()) {
             try {
                 buffer.flush(false);
 //                trans.write(new SSHPacket(Message.CHANNEL_EOF).putUInt32(chan.getRecipient()));

src/main/java/net/schmizz/sshj/connection/channel/SocketStreamCopyMonitor.java

@@ -39,15 +39,21 @@ public class SocketStreamCopyMonitor
         new SocketStreamCopyMonitor(new Runnable() {
             public void run() {
                 try {
-                    for (Event<IOException> ev = x;
-                         !ev.tryAwait(frequency, unit);
-                         ev = (ev == x) ? y : x) {
-                    }
+                    await(x);
+                    await(y);
                 } catch (IOException ignored) {
                 } finally {
                     IOUtils.closeQuietly(channel, asCloseable(socket));
                 }
             }
+
+            private void await(final Event<IOException> event) throws IOException {
+                while(true){
+                    if(event.tryAwait(frequency, unit)){
+                        break;
+                    }
+                }
+            }
         }).start();
     }
 

src/main/java/net/schmizz/sshj/connection/channel/Window.java

@@ -20,6 +20,8 @@ import net.schmizz.sshj.common.SSHRuntimeException;
 import net.schmizz.sshj.connection.ConnectionException;
 import org.slf4j.Logger;
 
+import java.util.concurrent.TimeUnit;
+
 public abstract class Window {
 
     protected final Logger log;
@@ -73,17 +75,23 @@ public abstract class Window {
     /** Controls how much data we can send before an adjustment notification from remote end is required. */
     public static final class Remote
             extends Window {
+        private final long timeoutMs;
 
-        public Remote(long initialWinSize, int maxPacketSize, LoggerFactory loggerFactory) {
+        public Remote(long initialWinSize, int maxPacketSize, long timeoutMs, LoggerFactory loggerFactory) {
             super(initialWinSize, maxPacketSize, loggerFactory);
+            this.timeoutMs = timeoutMs;
         }
 
         public long awaitExpansion(long was) throws ConnectionException {
             synchronized (lock) {
+                long end = System.nanoTime() + TimeUnit.MILLISECONDS.toNanos(timeoutMs);
                 while (size <= was) {
                     log.debug("Waiting, need size to grow from {} bytes", was);
                     try {
-                        lock.wait();
+                        lock.wait(timeoutMs);
+                        if ((size <= was) && ((System.nanoTime() - end) > 0)) {
+                            throw new ConnectionException("Timeout when trying to expand the window size");
+                        }
                     } catch (InterruptedException ie) {
                         throw new ConnectionException(ie);
                     }

src/main/java/net/schmizz/sshj/connection/channel/direct/AbstractDirectChannel.java

@@ -28,7 +28,7 @@ import net.schmizz.sshj.transport.TransportException;
 import java.nio.charset.Charset;
 import java.util.concurrent.TimeUnit;
 
-/** Base class for direct channels whose open is initated by the client. */
+/** Base class for direct channels whose open is initiated by the client. */
 public abstract class AbstractDirectChannel
         extends AbstractChannel
         implements Channel.Direct {

src/main/java/net/schmizz/sshj/connection/channel/direct/DirectConnection.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.schmizz.sshj.connection.channel.direct;
+
+import net.schmizz.sshj.connection.Connection;
+
+/** A channel for creating a direct TCP/IP connection from the server to a remote address. */
+public class DirectConnection extends DirectTCPIPChannel {
+    public static final String LOCALHOST = "localhost";
+    public static final int LOCALPORT = 65535;
+
+    public DirectConnection(Connection conn, String remoteHost, int remotePort) {
+        super(conn, new Parameters(LOCALHOST, LOCALPORT, remoteHost, remotePort));
+    }
+
+    public String getRemoteHost() {
+        return parameters.getRemoteHost();
+    }
+
+    public int getRemotePort() {
+        return parameters.getRemotePort();
+    }
+}

src/main/java/net/schmizz/sshj/connection/channel/direct/DirectTCPIPChannel.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.schmizz.sshj.connection.channel.direct;
+
+import net.schmizz.sshj.common.SSHPacket;
+import net.schmizz.sshj.connection.Connection;
+
+public class DirectTCPIPChannel extends AbstractDirectChannel {
+    protected final Parameters parameters;
+
+    protected DirectTCPIPChannel(Connection conn, Parameters parameters) {
+        super(conn, "direct-tcpip");
+        this.parameters = parameters;
+    }
+
+    @Override
+    protected SSHPacket buildOpenReq() {
+        return super.buildOpenReq()
+                .putString(parameters.getRemoteHost())
+                .putUInt32(parameters.getRemotePort())
+                .putString(parameters.getLocalHost())
+                .putUInt32(parameters.getLocalPort());
+    }
+}

src/main/java/net/schmizz/sshj/connection/channel/direct/LocalPortForwarder.java

@@ -18,7 +18,6 @@ package net.schmizz.sshj.connection.channel.direct;
 import net.schmizz.concurrent.Event;
 import net.schmizz.sshj.common.IOUtils;
 import net.schmizz.sshj.common.LoggerFactory;
-import net.schmizz.sshj.common.SSHPacket;
 import net.schmizz.sshj.common.StreamCopier;
 import net.schmizz.sshj.connection.Connection;
 import net.schmizz.sshj.connection.channel.SocketStreamCopyMonitor;
@@ -34,48 +33,14 @@ import static com.hierynomus.sshj.backport.Sockets.asCloseable;
 
 public class LocalPortForwarder {
 
-    public static class Parameters {
-
-        private final String localHost;
-        private final int localPort;
-        private final String remoteHost;
-        private final int remotePort;
-
-        public Parameters(String localHost, int localPort, String remoteHost, int remotePort) {
-            this.localHost = localHost;
-            this.localPort = localPort;
-            this.remoteHost = remoteHost;
-            this.remotePort = remotePort;
-        }
-
-        public String getRemoteHost() {
-            return remoteHost;
-        }
-
-        public int getRemotePort() {
-            return remotePort;
-        }
-
-        public String getLocalHost() {
-            return localHost;
-        }
-
-        public int getLocalPort() {
-            return localPort;
-        }
-
-    }
-
-    public static class DirectTCPIPChannel
-            extends AbstractDirectChannel {
+    public static class ForwardedChannel
+            extends DirectTCPIPChannel {
 
         protected final Socket socket;
-        protected final Parameters parameters;
 
-        public DirectTCPIPChannel(Connection conn, Socket socket, Parameters parameters) {
-            super(conn, "direct-tcpip");
+        public ForwardedChannel(Connection conn, Socket socket, Parameters parameters) {
+            super(conn, parameters);
             this.socket = socket;
-            this.parameters = parameters;
         }
 
         protected void start()
@@ -90,16 +55,6 @@ public class LocalPortForwarder {
                     .spawnDaemon("chan2soc");
             SocketStreamCopyMonitor.monitor(5, TimeUnit.SECONDS, soc2chan, chan2soc, this, socket);
         }
-
-        @Override
-        protected SSHPacket buildOpenReq() {
-            return super.buildOpenReq()
-                    .putString(parameters.getRemoteHost())
-                    .putUInt32(parameters.getRemotePort())
-                    .putString(parameters.getLocalHost())
-                    .putUInt32(parameters.getLocalPort());
-        }
-
     }
 
     private final LoggerFactory loggerFactory;
@@ -118,7 +73,7 @@ public class LocalPortForwarder {
     }
 
     private void startChannel(Socket socket) throws IOException {
-        DirectTCPIPChannel chan = new DirectTCPIPChannel(conn, socket, parameters);
+        ForwardedChannel chan = new ForwardedChannel(conn, socket, parameters);
         try {
             chan.open();
             chan.start();

src/main/java/net/schmizz/sshj/connection/channel/direct/Parameters.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C)2009 - SSHJ Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.schmizz.sshj.connection.channel.direct;
+
+import java.util.Objects;
+
+public class Parameters {
+
+    private final String localHost;
+    private final int localPort;
+    private final String remoteHost;
+    private final int remotePort;
+
+    public Parameters(String localHost, int localPort, String remoteHost, int remotePort) {
+        this.localHost = localHost;
+        this.localPort = localPort;
+        this.remoteHost = remoteHost;
+        this.remotePort = remotePort;
+    }
+
+    public String getRemoteHost() {
+        return remoteHost;
+    }
+
+    public int getRemotePort() {
+        return remotePort;
+    }
+
+    public String getLocalHost() {
+        return localHost;
+    }
+
+    public int getLocalPort() {
+        return localPort;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(localHost, localPort, remoteHost, remotePort);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) { return true; }
+        if (!(obj instanceof Parameters)) { return false; }
+        Parameters other = (Parameters) obj;
+        return Objects.equals(localHost,  other.localHost)  && localPort  == other.localPort &&
+               Objects.equals(remoteHost, other.remoteHost) && remotePort == other.remotePort;
+    }
+
+    @Override
+    public String toString() {
+        return "Parameters [localHost="  + localHost  + ", localPort="  + localPort  + ", "+
+                           "remoteHost=" + remoteHost + ", remotePort=" + remotePort + "]";
+    }
+
+}

src/main/java/net/schmizz/sshj/connection/channel/direct/Session.java

@@ -191,7 +191,7 @@ public interface Session
                    TransportException;
 
     /**
-     * Set an enviornment variable.
+     * Set an environment variable.
      *
      * @param name  name of the variable
      * @param value value to set

src/main/java/net/schmizz/sshj/connection/channel/forwarded/ForwardedChannelOpener.java

@@ -28,7 +28,7 @@ public interface ForwardedChannelOpener {
     /**
      * Delegates a {@code SSH_MSG_CHANNEL_OPEN} request for the channel type claimed by this opener.
      *
-     * @param buf {@link SSHPacket} containg the request except for the message identifier and channel type field
+     * @param buf {@link SSHPacket} containing the request except for the message identifier and channel type field
      */
     void handleOpen(SSHPacket buf)
             throws ConnectionException, TransportException;

src/main/java/net/schmizz/sshj/sftp/PacketReader.java

@@ -42,6 +42,7 @@ public class PacketReader extends Thread {
         log = engine.getLoggerFactory().getLogger(getClass());
         this.in = engine.getSubsystem().getInputStream();
         setName("sftp reader");
+        setDaemon(true);
     }
 
     private void readIntoBuffer(byte[] buf, int off, int len)

src/main/java/net/schmizz/sshj/sftp/PathComponents.java

@@ -18,8 +18,14 @@ package net.schmizz.sshj.sftp;
 public class PathComponents {
 
     static String adjustForParent(String parent, String path, String pathSep) {
-        return (path.startsWith(pathSep)) ? path // Absolute path, nothing to adjust
-                : (parent + (parent.endsWith(pathSep) ? "" : pathSep) + path); // Relative path
+        if (path.startsWith(pathSep)) {
+            return path; // Absolute path, nothing to adjust
+        } else if (parent.endsWith(pathSep)) {
+            return parent + path; // Relative path, parent endsWith '/'
+        } else if (parent.isEmpty()) {
+            return path;
+        }
+        return parent + pathSep + path; // Relative path
     }
 
     static String trimTrailingSeparator(String somePath, String pathSep) {
@@ -33,7 +39,8 @@ public class PathComponents {
     public PathComponents(String parent, String name, String pathSep) {
         this.parent = parent;
         this.name = name;
-        this.path = trimTrailingSeparator(adjustForParent(parent, name, pathSep), pathSep);
+        String adjusted = adjustForParent(parent, name, pathSep);
+        this.path = !pathSep.equals(adjusted) ? trimTrailingSeparator(adjusted, pathSep) : adjusted;
     }
 
     public String getParent() {

src/main/java/net/schmizz/sshj/sftp/PathHelper.java

@@ -70,16 +70,25 @@ public class PathHelper {
      */
     public PathComponents getComponents(final String path)
             throws IOException {
-        if (path.equals(pathSep))
-            return getComponents("", "");
+        if (path.equals(pathSep)) {
+            return getComponents("", "/");
+        }
 
-        if (path.isEmpty() || ".".equals(path) || ("." + pathSep).equals(path))
+        if (path.isEmpty() || ".".equals(path) || ("." + pathSep).equals(path)) {
             return getComponents(getDotDir());
+        }
 
         final String withoutTrailSep = trimTrailingSeparator(path);
         final int lastSep = withoutTrailSep.lastIndexOf(pathSep);
-        final String parent = (lastSep == -1) ? "" : withoutTrailSep.substring(0, lastSep);
-        final String name = (lastSep == -1) ? withoutTrailSep : withoutTrailSep.substring(lastSep + pathSep.length());
+        String parent;
+        String name;
+        if (lastSep == -1) {
+            parent = "";
+            name = withoutTrailSep;
+        } else {
+            parent = lastSep == 0 ? "/" : withoutTrailSep.substring(0, lastSep);
+            name = withoutTrailSep.substring(lastSep + pathSep.length());
+        }
 
         if (".".equals(name) || "..".equals(name)) {
             return getComponents(canonicalizer.canonicalize(path));
@@ -87,5 +96,4 @@ public class PathHelper {
             return getComponents(parent, name);
         }
     }
-
 }

src/main/java/net/schmizz/sshj/sftp/Response.java

@@ -68,6 +68,9 @@ public final class Response
             this.code = code;
         }
 
+        public int getCode() {
+            return code;
+        }
     }
 
     private final int protocolVersion;

src/main/java/net/schmizz/sshj/sftp/SFTPEngine.java

@@ -108,6 +108,14 @@ public class SFTPEngine
         return operativeVersion;
     }
 
+    public boolean supportsServerExtension(final String extension, final String domain) {
+        return serverExtensions.containsKey(extension + "@" + domain);
+    }
+
+    public String getServerExtensionData(final String extension, final String domain) {
+        return serverExtensions.get(extension + "@" + domain);
+    }
+
     public Request newExtendedRequest(String reqName) {
         return newRequest(PacketType.EXTENDED).putString(reqName);
     }

src/main/java/net/schmizz/sshj/signature/AbstractSignature.java

@@ -29,18 +29,26 @@ public abstract class AbstractSignature
 
     @SuppressWarnings("PMD.UnnecessaryFullyQualifiedName")
     protected final java.security.Signature signature;
+    private final String signatureName;
 
-    protected AbstractSignature(String algorithm) {
+    protected AbstractSignature(String algorithm, String signatureName) {
         try {
             this.signature = SecurityUtils.getSignature(algorithm);
+            this.signatureName = signatureName;
         } catch (GeneralSecurityException e) {
             throw new SSHRuntimeException(e);
         }
     }
 
     protected AbstractSignature(@SuppressWarnings("PMD.UnnecessaryFullyQualifiedName")
-                                        java.security.Signature signatureEngine) {
+                                        java.security.Signature signatureEngine, String signatureName) {
         this.signature = signatureEngine;
+        this.signatureName = signatureName;
+    }
+
+    @Override
+    public String getSignatureName() {
+        return signatureName;
     }
 
     @Override

src/main/java/net/schmizz/sshj/signature/Signature.java

@@ -21,6 +21,8 @@ import java.security.PublicKey;
 /** Signature interface for SSH used to sign or verify data. Usually wraps a {@code javax.crypto.Signature} object. */
 public interface Signature {
 
+    String getSignatureName();
+
     /**
      * Initialize this signature with the given public key for signature verification.
      *

src/main/java/net/schmizz/sshj/signature/SignatureDSA.java

@@ -15,15 +15,20 @@
  */
 package net.schmizz.sshj.signature;
 
+import com.hierynomus.asn1.encodingrules.der.DEREncoder;
+import com.hierynomus.asn1.types.ASN1Object;
+import com.hierynomus.asn1.types.constructed.ASN1Sequence;
+import com.hierynomus.asn1.types.primitive.ASN1Integer;
 import net.schmizz.sshj.common.KeyType;
 import net.schmizz.sshj.common.SSHRuntimeException;
-import org.bouncycastle.asn1.*;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.math.BigInteger;
 import java.security.SignatureException;
+import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.List;
 
 /**
  * DSA {@link Signature}
@@ -50,7 +55,7 @@ public class SignatureDSA
     }
 
     public SignatureDSA() {
-        super("SHA1withDSA");
+        super("SHA1withDSA", KeyType.DSA.toString());
     }
 
     @Override
@@ -72,8 +77,8 @@ public class SignatureDSA
 
         // result must be 40 bytes, but length of r and s may not be 20 bytes
 
-        int r_copylen = (r.length < 20) ? r.length : 20;
-        int s_copylen = (s.length < 20) ? s.length : 20;
+        int r_copylen = Math.min(r.length, 20);
+        int s_copylen = Math.min(s.length, 20);
 
         System.arraycopy(r, r.length - r_copylen, result, 20 - r_copylen, r_copylen);
         System.arraycopy(s, s.length - s_copylen, result, 40 - s_copylen, s_copylen);
@@ -97,18 +102,19 @@ public class SignatureDSA
      * Encodes the signature as a DER sequence (ASN.1 format).
      */
     private byte[] asnEncode(byte[] sigBlob) throws IOException {
-        byte[] r = new BigInteger(1, Arrays.copyOfRange(sigBlob, 0, 20)).toByteArray();
-        byte[] s = new BigInteger(1, Arrays.copyOfRange(sigBlob, 20, 40)).toByteArray();
+        BigInteger r = new BigInteger(1, Arrays.copyOfRange(sigBlob, 0, 20));
+        BigInteger s = new BigInteger(1, Arrays.copyOfRange(sigBlob, 20, 40));
 
-        ASN1EncodableVector vector = new ASN1EncodableVector();
-        vector.add(new ASN1Integer(r));
+        List<ASN1Object> vector = new ArrayList<ASN1Object>();
+        vector.add(new com.hierynomus.asn1.types.primitive.ASN1Integer(r));
         vector.add(new ASN1Integer(s));
 
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        ASN1OutputStream asnOS = new ASN1OutputStream(baos);
+        com.hierynomus.asn1.ASN1OutputStream asn1OutputStream = new com.hierynomus.asn1.ASN1OutputStream(new DEREncoder(), baos);
+
+        asn1OutputStream.writeObject(new ASN1Sequence(vector));
+        asn1OutputStream.flush();
 
-        asnOS.writeObject(new DERSequence(vector));
-        asnOS.flush();
 
         return baos.toByteArray();
     }