org.dromara.hutool.json.jwt.signers.HMacJWTSigner Maven / Gradle / Ivy
/*
* Copyright (c) 2013-2024 Hutool Team and hutool.cn
*
* 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.dromara.hutool.json.jwt.signers;
import org.dromara.hutool.core.text.StrUtil;
import org.dromara.hutool.core.util.ByteUtil;
import org.dromara.hutool.core.util.CharsetUtil;
import org.dromara.hutool.crypto.digest.mac.HMac;
import java.nio.charset.Charset;
import java.security.Key;
/**
* HMac算法签名实现
*
* @author looly
* @since 5.7.0
*/
public class HMacJWTSigner implements JWTSigner {
private Charset charset = CharsetUtil.UTF_8;
private final HMac hMac;
/**
* 构造
*
* @param algorithm HMAC签名算法
* @param key 密钥
*/
public HMacJWTSigner(final String algorithm, final byte[] key) {
this.hMac = new HMac(algorithm, key);
}
/**
* 构造
*
* @param algorithm HMAC签名算法
* @param key 密钥
*/
public HMacJWTSigner(final String algorithm, final Key key) {
this.hMac = new HMac(algorithm, key);
}
/**
* 设置编码
*
* @param charset 编码
* @return 编码
*/
public HMacJWTSigner setCharset(final Charset charset) {
this.charset = charset;
return this;
}
@Override
public String sign(final String headerBase64, final String payloadBase64) {
return hMac.digestBase64(StrUtil.format("{}.{}", headerBase64, payloadBase64), charset, true);
}
@Override
public boolean verify(final String headerBase64, final String payloadBase64, final String signBase64) {
final String sign = sign(headerBase64, payloadBase64);
return hMac.verify(
ByteUtil.toBytes(sign, charset),
ByteUtil.toBytes(signBase64, charset));
}
@Override
public String getAlgorithm() {
return this.hMac.getAlgorithm();
}
}