diff --git a/src/main/java/net/schmizz/sshj/userauth/keyprovider/OpenSSHKeyFile.java b/src/main/java/net/schmizz/sshj/userauth/keyprovider/OpenSSHKeyFile.java
index 5e0b615a..19d2c733 100644
--- a/src/main/java/net/schmizz/sshj/userauth/keyprovider/OpenSSHKeyFile.java
+++ b/src/main/java/net/schmizz/sshj/userauth/keyprovider/OpenSSHKeyFile.java
@@ -39,10 +39,10 @@ public class OpenSSHKeyFile
         extends PKCS8KeyFile {
 
     public static class Factory
-            implements net.schmizz.sshj.common.Factory.Named<FileKeyProvider> {
+            implements net.schmizz.sshj.common.Factory.Named<KeyProvider> {
 
         @Override
-        public FileKeyProvider create() {
+        public KeyProvider create() {
             return new OpenSSHKeyFile();
         }
 
diff --git a/src/main/java/net/schmizz/sshj/userauth/keyprovider/PKCS8KeyFile.java b/src/main/java/net/schmizz/sshj/userauth/keyprovider/PKCS8KeyFile.java
index 34e0bb82..ce7d8833 100644
--- a/src/main/java/net/schmizz/sshj/userauth/keyprovider/PKCS8KeyFile.java
+++ b/src/main/java/net/schmizz/sshj/userauth/keyprovider/PKCS8KeyFile.java
@@ -17,6 +17,7 @@ package net.schmizz.sshj.userauth.keyprovider;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.Reader;
 import java.security.KeyPair;
 import java.security.PrivateKey;
 import java.security.PublicKey;
@@ -26,6 +27,7 @@ import net.schmizz.sshj.common.KeyType;
 import net.schmizz.sshj.userauth.password.PasswordFinder;
 import net.schmizz.sshj.userauth.password.PasswordUtils;
 import net.schmizz.sshj.userauth.password.PrivateKeyFileResource;
+import net.schmizz.sshj.userauth.password.PrivateKeyReaderResource;
 import net.schmizz.sshj.userauth.password.PrivateKeyStringResource;
 import net.schmizz.sshj.userauth.password.Resource;
 
@@ -41,13 +43,13 @@ import org.slf4j.LoggerFactory;
 
 /** Represents a PKCS8-encoded key file. This is the format used by OpenSSH and OpenSSL. */
 public class PKCS8KeyFile
-        implements FileKeyProvider {
+        implements FileKeyProvider, ReaderKeyProvider {
 
     public static class Factory
-            implements net.schmizz.sshj.common.Factory.Named<FileKeyProvider> {
+            implements net.schmizz.sshj.common.Factory.Named<KeyProvider> {
 
         @Override
-        public FileKeyProvider create() {
+        public KeyProvider create() {
             return new PKCS8KeyFile();
         }
 
@@ -84,6 +86,18 @@ public class PKCS8KeyFile
         return type != null ? type : (type = KeyType.fromKey(getPublic()));
     }
 
+    @Override
+    public void init(Reader location) {
+        assert location != null;
+        resource = new PrivateKeyReaderResource(location);
+    }
+
+    @Override
+    public void init(Reader location, PasswordFinder pwdf) {
+        init(location);
+        this.pwdf = pwdf;
+    }
+
     @Override
     public void init(File location) {
         assert location != null;
diff --git a/src/main/java/net/schmizz/sshj/userauth/keyprovider/ReaderKeyProvider.java b/src/main/java/net/schmizz/sshj/userauth/keyprovider/ReaderKeyProvider.java
new file mode 100644
index 00000000..abf4f8f5
--- /dev/null
+++ b/src/main/java/net/schmizz/sshj/userauth/keyprovider/ReaderKeyProvider.java
@@ -0,0 +1,15 @@
+package net.schmizz.sshj.userauth.keyprovider;
+
+import java.io.Reader;
+
+import net.schmizz.sshj.userauth.password.PasswordFinder;
+
+/**
+ * @version $Id:$
+ */
+public interface ReaderKeyProvider extends KeyProvider {
+
+    void init(Reader location);
+
+    void init(Reader location, PasswordFinder pwdf);
+}
diff --git a/src/main/java/net/schmizz/sshj/userauth/password/PrivateKeyReaderResource.java b/src/main/java/net/schmizz/sshj/userauth/password/PrivateKeyReaderResource.java
new file mode 100644
index 00000000..90eb3336
--- /dev/null
+++ b/src/main/java/net/schmizz/sshj/userauth/password/PrivateKeyReaderResource.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2010-2012 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.userauth.password;
+
+import java.io.IOException;
+import java.io.Reader;
+
+public class PrivateKeyReaderResource
+        extends Resource<Reader> {
+
+    public PrivateKeyReaderResource(Reader privateKeyFile) {
+        super(privateKeyFile);
+    }
+
+    @Override
+    public Reader getReader()
+            throws IOException {
+        return getDetail();
+    }
+}