package com.ruoyi.payment.infrastructure.util;
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import org.apache.commons.codec.digest.DigestUtils;
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import javax.crypto.Mac;
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import javax.crypto.spec.SecretKeySpec;
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import java.nio.charset.StandardCharsets;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.util.Base64;
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/**
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* 签名工具类
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*
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* @author ruoyi
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*/
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public class SignUtil {
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/**
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* MD5签名
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*
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* @param data 待签名数据
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* @return 签名结果
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*/
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public static String md5(String data) {
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return DigestUtils.md5Hex(data).toUpperCase();
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}
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/**
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* HMAC-SHA256签名
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*
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* @param data 待签名数据
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* @param secret 密钥
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* @return 签名结果（Base64编码）
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*/
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public static String hmacSha256(String data, String secret) {
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try {
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Mac mac = Mac.getInstance("HmacSHA256");
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SecretKeySpec secretKeySpec = new SecretKeySpec(
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secret.getBytes(StandardCharsets.UTF_8),
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"HmacSHA256"
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);
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mac.init(secretKeySpec);
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byte[] bytes = mac.doFinal(data.getBytes(StandardCharsets.UTF_8));
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return Base64.getEncoder().encodeToString(bytes);
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} catch (NoSuchAlgorithmException | InvalidKeyException e) {
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throw new RuntimeException("HMAC-SHA256签名失败", e);
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}
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}
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/**
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* 验证HMAC-SHA256签名
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*
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* @param data 原始数据
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* @param secret 密钥
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* @param signature 签名
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* @return 是否验证通过
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*/
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public static boolean verifyHmacSha256(String data, String secret, String signature) {
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String calculated = hmacSha256(data, secret);
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return calculated.equals(signature);
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}
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}
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