Question

我必须用Java编写客户端提供的Ruby代码。该代码使用密钥和Base64编码来形成hmac值。我试图在Java中编写类似的代码，但结果的hmac值与Ruby脚本结果不匹配。请找到以下Java和Java代码块。 Ruby以及结果输出。

Java代码：

public static void main(String[] args)
    throws NoSuchAlgorithmException, InvalidKeyException
{
    // get an hmac_sha1 key from the raw key bytes
    String secretKey =
        "Ye2oSnu1NjzJar1z2aaL68Zj+64FsRM1kj7I0mK3WJc2HsRRcGviXZ6B4W+/V2wFcu78r8ZkT8=";

    byte[] secretkeyByte = Base64.decodeBase64(secretKey.getBytes());
    SecretKeySpec signingKey = new SecretKeySpec(secretkeyByte, "HmacSHA1");
    // get an hmac_sha1 Mac instance and initialize with the signing key.
    String movingFact = "0";
    byte[] text = movingFact.getBytes();
    Mac mac = Mac.getInstance("HmacSHA1");
    mac.init(signingKey);
    // compute the hmac on input data bytes
    byte[] rawHmac = mac.doFinal(text);
    byte[] hash = Base64.encodeBase64(rawHmac);
    System.out.println("hash :" + hash);
}

Java输出：哈希：[B @ 72a32604

Ruby代码：

  def get_signature()   
    key = Base64.decode64("Ye2oSnu1NjzJar1z2aaL68Zj+64FsRM1kj7I0mK3WJc2HsRRcGviXZ6B4W+/V2wFcu78r8ZkT8=")
    digest = OpenSSL::Digest::Digest.new('sha1')
    string_to_sign = "0"
    hash = Base64.encode64(OpenSSL::HMAC.digest(digest, key, string_to_sign))
    puts "hash: " + hash
  end

Ruby输出：哈希：Nxe7tOBsbxLpsrqUJjncrPFI50E =

Answer 1

如评论中所述，您打印的是字节数组的描述，而不是内容：

替换：

System.out.println("hash :" + hash);

使用：

System.out.println("hash: " + new String(hash, StandardCharsets.UTF_8));

从Java计算的HMAC值与Ruby代码不匹配

1 个答案: