@Override
public void deleteKey(String keyName) throws IOException {
checkKeyProvider();
if (keyProvider.getMetadata(keyName) != null) {
keyProvider.deleteKey(keyName);
keyProvider.flush();
} else {
throw new IOException("key '" + keyName + "' does not exist.");
}
}
@Override
public void createKey(String keyName, int bitLength)
throws IOException, NoSuchAlgorithmException {
checkKeyProvider();
if (keyProvider.getMetadata(keyName) == null) {
final KeyProvider.Options options = new Options(this.conf);
options.setCipher(HDFS_SECURITY_DEFAULT_CIPHER);
options.setBitLength(bitLength);
keyProvider.createKey(keyName, options);
keyProvider.flush();
} else {
throw new IOException("key '" + keyName + "' already exists");
}
}