Examples with DecryptException com.adaptris.security.exc.DecryptException used on opensource projects

Example 1 with DecryptException

use of com.adaptris.security.exc.DecryptException in project interlok by adaptris.

the class StdSecurityService method decrypt.

private StdOutput decrypt(byte[] payload, PrivateKey pk) throws AdaptrisSecurityException {
    StdOutput target = new StdOutput(Output.PLAIN);
    target.split(payload);
    try {
        if (target.getSessionKey() != null) {
            String cipherName = getCipherName(alg.getAlgorithm());
            Cipher keyCipher = Cipher.getInstance(pk.getAlgorithm());
            /*,
            Constants.SECURITY_PROVIDER);*/
            keyCipher.init(Cipher.DECRYPT_MODE, pk);
            byte[] sessionKeyBytes = keyCipher.doFinal(target.getSessionKey());
            SecretKeyFactory skf = SecretKeyFactory.getInstance(cipherName);
            /*,
            Constants.SECURITY_PROVIDER);*/
            SecretKeySpec key = new SecretKeySpec(sessionKeyBytes, cipherName);
            SecretKey sessionKey = skf.generateSecret(key);
            Cipher payloadCipher = Cipher.getInstance(alg.getAlgorithm());
            /*,
            Constants.SECURITY_PROVIDER);*/
            if (target.getSessionVector() != null) {
                IvParameterSpec spec = new IvParameterSpec(target.getSessionVector());
                payloadCipher.init(Cipher.DECRYPT_MODE, sessionKey, spec);
            } else {
                payloadCipher.init(Cipher.DECRYPT_MODE, sessionKey);
            }
            target.setDecryptedData(payloadCipher.doFinal(target.getEncryptedData(true)));
        } else {
            target.setDecryptedData(target.getEncryptedData(true));
        }
    } catch (Exception e) {
        throw new DecryptException("Payload could not be decrypted", e);
    }
    return target;
}