package com.ruoyi.other.util.pay;
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import org.apache.commons.codec.digest.DigestUtils;
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import java.security.MessageDigest;
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/**
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* 类MD5_Sign：MD5签名和验签
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*
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* @author Lori 2018年6月04日 下午16:10:04
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*/
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public class Md5_Sign {
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/**
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* MD5签名
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*
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* @param requestSign 请求签名串
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* @param merchantKey 商户秘钥
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*/
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public static String SignByMD5(String requestSign, String merchantKey) {
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String reqHmac = "";
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try {
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reqHmac = DigestUtils.md5Hex(requestSign + merchantKey).toUpperCase();
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} catch (Exception e) {}
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return reqHmac;
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}
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public static String SignByMD5A(String content, String key) {
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try {
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// 汇付天下可能需要在内容后加上key
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String toSign = content + key;
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MessageDigest md = MessageDigest.getInstance("MD5");
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byte[] digest = md.digest(toSign.getBytes("UTF-8"));
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StringBuilder sb = new StringBuilder();
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for (byte b : digest) {
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sb.append(String.format("%02x", b));
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}
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return sb.toString().toUpperCase();
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} catch (Exception e) {
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throw new RuntimeException("MD5签名失败", e);
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}
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}
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}
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