CipherParameters symmetricKey = new ParametersWithIV(new KeyParameter(initialVector), initialVector);
fromClientCipher.init(SecurityHandler.DECRYPT_MODE, symmetricKey);
toClientCipher.init(SecurityHandler.ENCRYPT_MODE, symmetricKey);
EncryptionChannelProcessor fromClientProcessor = new EncryptionChannelProcessor(fromClientCipher, 32);
EncryptionChannelProcessor toClientProcessor = new EncryptionChannelProcessor(toClientCipher, 32);
EncryptionKeyResponseMessage response = new EncryptionKeyResponseMessage(false, new byte[0], new byte[0]);
response.setProcessor(toClientProcessor);
message.getProcessorHandler().setProcessor(fromClientProcessor);