org.fisco.bcos.sdk.crypto.signature.ECDSASignature 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.signature;
import com.webank.wedpr.crypto.CryptoResult;
import com.webank.wedpr.crypto.NativeInterface;
import org.fisco.bcos.sdk.crypto.exceptions.SignatureException;
import org.fisco.bcos.sdk.crypto.keypair.CryptoKeyPair;
import org.fisco.bcos.sdk.utils.Hex;
public class ECDSASignature implements Signature {
@Override
public SignatureResult sign(final String message, final CryptoKeyPair keyPair) {
// convert signature string to SignatureResult struct
return new ECDSASignatureResult(signWithStringSignature(message, keyPair));
}
@Override
public SignatureResult sign(final byte[] message, final CryptoKeyPair keyPair) {
return sign(new String(message), keyPair);
}
@Override
public String signWithStringSignature(final String message, final CryptoKeyPair keyPair) {
CryptoResult signatureResult =
NativeInterface.secp256k1Sign(keyPair.getHexPrivateKey(), message);
// call secp256k1Sign failed
if (signatureResult.wedprErrorMessage != null
&& !signatureResult.wedprErrorMessage.isEmpty()) {
throw new SignatureException(
"Sign with secp256k1 failed:" + signatureResult.wedprErrorMessage);
}
// convert signature string to SignatureResult struct
return signatureResult.signature;
}
@Override
public boolean verify(final String publicKey, final String message, final String signature) {
CryptoResult verifyResult = NativeInterface.secp256k1verify(publicKey, message, signature);
// call secp256k1verify failed
if (verifyResult.wedprErrorMessage != null && !verifyResult.wedprErrorMessage.isEmpty()) {
throw new SignatureException(
"Verify with secp256k1 failed:" + verifyResult.wedprErrorMessage);
}
return verifyResult.result;
}
@Override
public boolean verify(final String publicKey, final byte[] message, final byte[] signature) {
return verify(publicKey, Hex.toHexString(message), Hex.toHexString(signature));
}
}