小编hex*_*hex的帖子

我编码了 HMAC 解密。我多次尝试解密输出。

这是我的代码

package javaapplication_HMAC;

import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import com.sun.org.apache.xml.internal.security.utils.Base64;
import java.util.Formatter;

public class Encryption {

    public void Encryption_Base64(String x,String y){
     String message = x;
        String key = y;
        String algorithm = "HmacSHA1";  
        try {
            Mac sha256_hmac = Mac.getInstance(algorithm);
            SecretKeySpec secret_key = new SecretKeySpec(key.getBytes("UTF-8"), algorithm);
             sha256_hmac.init(secret_key);
            String hash = Base64.encode(sha256_hmac.doFinal(message.getBytes("UTF-8")));
            System.out.println(hash);
        } catch (NoSuchAlgorithmException | UnsupportedEncodingException | InvalidKeyException e) {
            e.printStackTrace();
        }    
    }

    public static void main(String args[]) {
        Encryption encryption_base64 = …