New file |
| | |
| | | package com.dy.pipIrrWechat.util; |
| | | |
| | | import javax.crypto.Mac; |
| | | import javax.crypto.spec.SecretKeySpec; |
| | | import java.nio.charset.StandardCharsets; |
| | | import java.security.InvalidKeyException; |
| | | import java.security.NoSuchAlgorithmException; |
| | | |
| | | /** |
| | | * @author ZhuBaoMin |
| | | * @date 2024-07-15 10:19 |
| | | * @LastEditTime 2024-07-15 10:19 |
| | | * @Description |
| | | */ |
| | | public class HmacSha256 { |
| | | public static String getSignature(String secretKey, String data) throws NoSuchAlgorithmException, InvalidKeyException { |
| | | // 创建密钥对象 |
| | | byte[] keyBytes = secretKey.getBytes(StandardCharsets.UTF_8); |
| | | SecretKeySpec secretKeySpec = new SecretKeySpec(keyBytes, "HmacSHA256"); |
| | | |
| | | // 创建Mac对象并初始化 |
| | | Mac mac = Mac.getInstance("HmacSHA256"); |
| | | mac.init(secretKeySpec); |
| | | |
| | | // 将待加密的数据转换为字节数组 |
| | | byte[] dataBytes = data.getBytes(StandardCharsets.UTF_8); |
| | | |
| | | // 使用密钥对数据进行加密 |
| | | byte[] encryptedBytes = mac.doFinal(dataBytes); |
| | | |
| | | // 将加密后的结果转换为十六进制字符串 |
| | | StringBuilder hexString = new StringBuilder(); |
| | | for (byte b : encryptedBytes) { |
| | | String hex = Integer.toHexString(0xff & b); |
| | | if (hex.length() == 1) { |
| | | hexString.append('0'); |
| | | } |
| | | hexString.append(hex); |
| | | } |
| | | String hmacSha256 = hexString.toString(); |
| | | return hmacSha256; |
| | | } |
| | | } |