55 lines
1.5 KiB
Java
55 lines
1.5 KiB
Java
package com.zeekling.solo.weixin.verify;
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import com.qq.weixin.mp.aes.AesException;
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import java.security.MessageDigest;
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import java.util.Arrays;
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/**
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* @author zeekling [lingzhaohui@zeekling.cn]
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* @version 1.0
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* @apiNote
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* @since 2020-03-18
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*/
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public class SHA1 {
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/**
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* 用SHA1算法验证Token
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*
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* @param token 票据
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* @param timestamp 时间戳
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* @param nonce 随机字符串
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* @return 安全签名
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*/
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public static String getSHA1(String token, String timestamp, String nonce) throws AesException {
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try {
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String[] array = new String[]{token, timestamp, nonce};
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StringBuilder sb = new StringBuilder();
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// 字符串排序
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Arrays.sort(array);
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for (int i = 0; i < 3; i++) {
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sb.append(array[i]);
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}
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String str = sb.toString();
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// SHA1签名生成
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MessageDigest md = MessageDigest.getInstance("SHA-1");
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md.update(str.getBytes());
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byte[] digest = md.digest();
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StringBuilder hexstr = new StringBuilder();
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String shaHex = "";
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for (byte aDigest : digest) {
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shaHex = Integer.toHexString(aDigest & 0xFF);
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if (shaHex.length() < 2) {
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hexstr.append(0);
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}
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hexstr.append(shaHex);
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}
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return hexstr.toString();
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} catch (Exception e) {
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e.printStackTrace();
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return null;
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}
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}
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}
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