io.jsonwebtoken.impl.crypto.MacValidator Maven / Gradle / Ivy
/*
* Copyright (C) 2014 jsonwebtoken.io
*
* 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 io.jsonwebtoken.impl.crypto;
import io.jsonwebtoken.SignatureAlgorithm;
import java.security.Key;
import java.security.MessageDigest;
public class MacValidator implements SignatureValidator {
private final MacSigner signer;
public MacValidator(SignatureAlgorithm alg, Key key) {
this.signer = new MacSigner(alg, key);
}
@Override
public boolean isValid(byte[] data, byte[] signature) {
byte[] computed = this.signer.sign(data);
return MessageDigest.isEqual(computed, signature);
}
}