com.jaemon.dingtalk.sign.DkSignAlgorithm Maven / Gradle / Ivy
/*
* Copyright 2015-2020 Jaemon([email protected])
*
* 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 com.jaemon.dingtalk.sign;
import com.jaemon.dingtalk.entity.SignBase;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
/**
* 签名接口
*
* @author Jaemon@[email protected]
* @version 1.0
*/
public interface DkSignAlgorithm {
/**
* 签名
*
* @param secret
* 秘钥
* @return
* 返回信息
* @throws Exception
* ex
*/
T sign(String secret) throws Exception;
/**
* 默认算法
*
* @param timestamp
* 时间戳
* @param secret
* 秘钥
* @return
* 签名结果
* @throws Exception
* ex
*/
default String algorithm(Long timestamp, String secret) throws Exception {
String stringToSign = timestamp + "\n" + secret;
Mac mac = Mac.getInstance("HmacSHA256");
mac.init(
new SecretKeySpec(secret.getBytes(StandardCharsets.UTF_8), "HmacSHA256")
);
byte[] signData = mac.doFinal(
stringToSign.getBytes(StandardCharsets.UTF_8)
);
String sign = URLEncoder.encode(
Base64.getEncoder().encodeToString(signData),
StandardCharsets.UTF_8.name()
);
return sign;
}
}