org.fisco.bcos.sdk.crypto.hash.Keccak256 Maven / Gradle / Ivy
/**
* Copyright 2014-2020 [fisco-dev]
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of the License at
*
*
http://www.apache.org/licenses/LICENSE-2.0
*
*
Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.fisco.bcos.sdk.crypto.hash;
import com.webank.wedpr.crypto.CryptoResult;
import com.webank.wedpr.crypto.NativeInterface;
import org.fisco.bcos.sdk.crypto.exceptions.HashException;
import org.fisco.bcos.sdk.utils.Hex;
public class Keccak256 implements Hash {
@Override
public String hash(final String inputData) {
return calculateHash(inputData.getBytes());
}
@Override
public byte[] hash(final byte[] inputBytes) {
return Hex.decode(calculateHash(inputBytes));
}
private String calculateHash(final byte[] inputBytes) {
// Note: the exceptions should be handled by the caller
CryptoResult hashResult = NativeInterface.keccak256(Hex.toHexString(inputBytes));
if (hashResult.wedprErrorMessage != null && !hashResult.wedprErrorMessage.isEmpty()) {
throw new HashException(
"Calculate hash with keccak256 failed! error message:"
+ hashResult.wedprErrorMessage);
}
return hashResult.hash;
}
}