php-base64_encodehash_hmac和java给出了不同的结果 - php base64_encode hash_hmac and java gives different results

php base64_encode hash_hmac and java gives different results

我在堆栈溢出中看到了一些相同的问题，但这对我没有帮助。

我有这个php代码

$signature=base64_encode(hash_hmac("sha256", trim($xmlReq), $signature_key, True));

我想写与之相当的java，这是我的java代码。

public static String encodeXML(String key, String data) {
    String result = "";
    try {
        Mac mac = Mac.getInstance("HmacSHA256");
        SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256");
        mac.init(secretKeySpec);
        result = Base64.encodeBase64String(mac.doFinal(data.getBytes("UTF-8")));
    } catch (NoSuchAlgorithmException | InvalidKeyException | UnsupportedEncodingException e) {
        log.error("exception occured when encording HmacSHA256 hash");
    }
    return result;
}

但它们给出了不同的结果。有人帮忙。

Apache Commons编解码器

 import org.apache.commons.codec.binary.Base64;
 ....
 Base64.encodeBase64String(.....);

PHP测试代码：

 $signature=base64_encode(hash_hmac("sha256", 'Message', 'secret', true));
 echo $signature;

Java测试代码：

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;
public class TestJava {
   public static void main(String[] args) {
      try {
         String secret = "secret";
         String message = "Message";
         Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
         SecretKeySpec secret_key = new SecretKeySpec(secret.getBytes(), "HmacSHA256");
         sha256_HMAC.init(secret_key);
         Base64.Encoder encoder = Base64.getEncoder();
         String hash = encoder.encodeToString(sha256_HMAC.doFinal(message.getBytes()));
         System.out.println(hash);
     } catch (Exception e){
       System.out.println("Error");
     }
  }
}

两者的输出应为：qnR8UCqJggD55PohusaBNviGoOJ67HC6Btry4qXLVZc=