Improvements per JVE.

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

@@ -426,18 +426,7 @@ public class Buffer<T extends Buffer<T>> {
     public PublicKey readPublicKey()
             throws BufferException {
         try {
-            final KeyType type = KeyType.fromString(readString());
+            return KeyType.fromString(readString()).readPubKeyFromBuffer(this);
-            switch (type) {
-                case RSA:
-                case DSA:
-                    return type.readPubKeyFromBuffer(this);
-                default:
-                    if (SecurityUtils.isBouncyCastleRegistered()) {
-                        return type.readPubKeyFromBuffer(this);
-                    } else {
-                        throw new BufferException("BouncyCastle is required to read a key of type " + type);
-                    }
-            }
         } catch (GeneralSecurityException e) {
             throw new SSHRuntimeException(e);
         }

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

@@ -116,6 +116,9 @@ public enum KeyType {
         @Override
         public PublicKey readPubKeyFromBuffer(Buffer<?> buf)
                 throws GeneralSecurityException {
+            if (!SecurityUtils.isBouncyCastleRegistered()) {
+                throw new GeneralSecurityException("BouncyCastle is required to read a key of type " + sType);
+            }
             try {
                 // final String algo = buf.readString();  it has been already read
                 final String curveName = buf.readString();

src/main/java/net/schmizz/sshj/transport/verification/OpenSSHKnownHosts.java

@@ -57,7 +57,7 @@ public class OpenSSHKnownHosts
             try {
                 // Read in the file, storing each line as an entry
                 String line;
-                while ((line = br.readLine()) != null)
+                while ((line = br.readLine()) != null) {
                     try {
                         HostEntry entry = entryFactory.parseEntry(line);
                         if (entry != null) {
@@ -65,7 +65,10 @@ public class OpenSSHKnownHosts
                         }
                     } catch (SSHException ignore) {
                         log.debug("Bad line ({}): {} ", ignore.toString(), line);
+                    } catch (SSHRuntimeException ignore) {
+                        log.debug("Failed to process line ({}): {} ", ignore.toString(), line);
                     }
+                }
             } finally {
                 IOUtils.closeQuietly(br);
             }