SM4加密数据

1、POM引入

         <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.8.11</version> <!-- 2025年8月最新稳定版 -->
        </dependency>

        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-jdk15on</artifactId>
            <version>1.70</version>
        </dependency>

2、SM4加密、解密应用

  static {
        try {
            Security.addProvider(new BouncyCastleProvider());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     *SM4 加密
     *
     */
    public static String encrypt(String context,String key){
        SymmetricCrypto sm4Crypto = new SymmetricCrypto("SM4",key.getBytes());
        String encryptHex = sm4Crypto.encryptHex(context);
        return encryptHex;

    }

    /**
     *SM4 解密
     *
     */
    public static String decrypt(String context,String key){
        SymmetricCrypto sm4Crypto = new SymmetricCrypto("SM4",key.getBytes());
        String decryptHex = sm4Crypto.decryptStr(context, CharsetUtil.CHARSET_UTF_8);
        return decryptHex;
    }

    public static void main(String[] args) {
        String context = "大鹏一日同风起，扶摇直上九万里。King....Peng";
        String key = "KmKmyuF7OJFVn2uB";
        String encryptHex = encrypt(context,key);
        System.out.println("加密后："+encryptHex);
        String decryptHex = decrypt(encryptHex,key);
        System.out.println("解密后："+decryptHex);
    }

执行结果：