org.keycloak.crypto.ECDSASignatureSignerContext Maven / Gradle / Ivy
/*
* Copyright 2023 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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.keycloak.crypto;
/**
*
* @author rmartinc
*/
public class ECDSASignatureSignerContext extends AsymmetricSignatureSignerContext {
public ECDSASignatureSignerContext(KeyWrapper key) throws SignatureException {
super(key);
}
@Override
public byte[] sign(byte[] data) throws SignatureException {
try {
int size = ECDSAAlgorithm.getSignatureLength(getAlgorithm());
return ECDSAAlgorithm.asn1derToConcatenatedRS(super.sign(data), size);
} catch (Exception e) {
throw new SignatureException("Signing failed", e);
}
}
}