@Override public ListenableFuture<Pair<byte[], String>> wrapKeyAsync( final byte[] key, final String algorithm) throws NoSuchAlgorithmException { if (key == null) { throw new IllegalArgumentException("key"); } // Interpret the requested algorithm String algorithmName = (Strings.isNullOrWhiteSpace(algorithm) ? getDefaultKeyWrapAlgorithm() : algorithm); Algorithm baseAlgorithm = AlgorithmResolver.Default.get(algorithmName); if (baseAlgorithm == null || !(baseAlgorithm instanceof AsymmetricEncryptionAlgorithm)) { throw new NoSuchAlgorithmException(algorithmName); } AsymmetricEncryptionAlgorithm algo = (AsymmetricEncryptionAlgorithm) baseAlgorithm; ICryptoTransform transform; ListenableFuture<Pair<byte[], String>> result; try { transform = algo.CreateEncryptor(_keyPair, _provider); result = Futures.immediateFuture(Pair.of(transform.doFinal(key), algorithmName)); } catch (Exception e) { result = Futures.immediateFailedFuture(e); } return result; }
@Override public ListenableFuture<Triple<byte[], byte[], String>> encryptAsync( final byte[] plaintext, final byte[] iv, final byte[] authenticationData, final String algorithm) throws NoSuchAlgorithmException { if (plaintext == null) { throw new IllegalArgumentException("plaintext"); } // Interpret the requested algorithm String algorithmName = (Strings.isNullOrWhiteSpace(algorithm) ? getDefaultEncryptionAlgorithm() : algorithm); Algorithm baseAlgorithm = AlgorithmResolver.Default.get(algorithmName); if (baseAlgorithm == null || !(baseAlgorithm instanceof AsymmetricEncryptionAlgorithm)) { throw new NoSuchAlgorithmException(algorithmName); } AsymmetricEncryptionAlgorithm algo = (AsymmetricEncryptionAlgorithm) baseAlgorithm; ICryptoTransform transform; ListenableFuture<Triple<byte[], byte[], String>> result; try { transform = algo.CreateEncryptor(_keyPair, _provider); result = Futures.immediateFuture( Triple.of(transform.doFinal(plaintext), (byte[]) null, algorithmName)); } catch (Exception e) { result = Futures.immediateFailedFuture(e); } return result; }