Add decryption of AES-encrypted keys

src/net/named_data/jndn/security/tpm/Tpm.java

@@ -108,7 +108,6 @@ public Error(String message)
 
     if (key == null)
       return new Blob();
-
     else
       return key.sign(digestAlgorithm, data);
   }

src/net/named_data/jndn/security/tpm/TpmPrivateKey.java

@@ -69,6 +69,7 @@ public class TpmPrivateKey {
   static {
     Security.insertProviderAt(new org.spongycastle.jce.provider.BouncyCastleProvider(), 1);
   }
+
   /**
    * A TpmPrivateKey.Error extends Exception and represents an error in private
    * key processing.
@@ -156,11 +157,9 @@ else if (keyType == KeyType.RSA)
   (ByteBuffer encoding, ByteBuffer password) throws TpmPrivateKey.Error {
     //BouncyCastle classes expect a byte array and char array
     byte[] encodingBytes = new byte[10];
-    encodingBytes = new byte[encoding.remaining()];
-    encoding.get(encodingBytes, 0, encodingBytes.length);
-    encoding.clear();
     encodingBytes = new byte[encoding.capacity()];
     encoding.get(encodingBytes, 0, encodingBytes.length);
+    encoding.clear();
 
     CharBuffer charBuffer = Charset.forName("ISO-8859-1").decode(password);
     char[] passwordBytes = charBuffer.array();
@@ -180,8 +179,8 @@ else if (keyType == KeyType.RSA)
         ("loadEncryptedPkcs8: Key type " + keyTypeString + " not supported");
 
     } catch (IOException | OperatorCreationException | PKCSException ex) {
-      throw new TpmPrivateKey.Error
-       ("loadEncryptedPkcs8: Error parsing PrivateKey info: " + ex);
+        throw new TpmPrivateKey.Error
+          ("loadEncryptedPkcs8: Error parsing PrivateKey info: " + ex);
 	}
 
   }
@@ -470,8 +469,7 @@ else if (keyType_ == KeyType.RSA) {
 
   /**
    * Get the encoded encrypted private key in PKCS #8.
-   * @param password The password for encrypting the private key, which should
-   * have characters in the range of 1 to 127.
+   * @param password The password for encrypting the private key.
    * @return The encoding Blob of the EncryptedPrivateKeyInfo.
    * @throws TpmPrivateKey.Error if no private key is loaded, or error encoding.
    */

tests/src/net/named_data/jndn/tests/integration_tests/TestKeyChain.java

@@ -249,15 +249,15 @@ public class TestKeyChain {
             );
     Name testName = new Name("/ndn/test/");
 
-   try {
+     try {
        SafeBag safebag = new SafeBag(testKey);
        fixture_.keyChain_.importSafeBag(safebag, password.buf());
      } catch (Throwable ex) {
-     fail("Unexpected exception: " + ex.getMessage());
-   }
-    assertTrue(fixture_.keyChain_.getPib().getIdentities_().getIdentities_().containsKey
-           (testName));
-  }
+       fail("Unexpected exception: " + ex.getMessage());
+     }
+     assertTrue(fixture_.keyChain_.getPib().getIdentities_().getIdentities_().containsKey
+                (testName));
+    }
 
   @Test
   public void