Examples with CryptoCodec org.apache.hadoop.crypto.CryptoCodec used on opensource projects

Example 11 with CryptoCodec

use of org.apache.hadoop.crypto.CryptoCodec in project hbase by apache.

the class FanOutOneBlockAsyncDFSOutputSaslHelper method createTransparentCryptoHelperWithoutHDFS12396.

private static TransparentCryptoHelper createTransparentCryptoHelperWithoutHDFS12396() throws NoSuchMethodException {
    Method decryptEncryptedDataEncryptionKeyMethod = DFSClient.class.getDeclaredMethod("decryptEncryptedDataEncryptionKey", FileEncryptionInfo.class);
    decryptEncryptedDataEncryptionKeyMethod.setAccessible(true);
    return new TransparentCryptoHelper() {

        @Override
        public Encryptor createEncryptor(Configuration conf, FileEncryptionInfo feInfo, DFSClient client) throws IOException {
            try {
                KeyVersion decryptedKey = (KeyVersion) decryptEncryptedDataEncryptionKeyMethod.invoke(client, feInfo);
                CryptoCodec cryptoCodec = CryptoCodec.getInstance(conf, feInfo.getCipherSuite());
                Encryptor encryptor = cryptoCodec.createEncryptor();
                encryptor.init(decryptedKey.getMaterial(), feInfo.getIV());
                return encryptor;
            } catch (InvocationTargetException e) {
                Throwables.propagateIfPossible(e.getTargetException(), IOException.class);
                throw new RuntimeException(e.getTargetException());
            } catch (GeneralSecurityException e) {
                throw new IOException(e);
            } catch (IllegalAccessException e) {
                throw new RuntimeException(e);
            }
        }
    };
}