java - 来自 Java 的 Ruby 中的 HMAC

Question

我正在尝试在 ruby​​ 中编写以下 java 函数:

public static byte[] hmac_sha1(byte[] keyBytes, byte[] text)
  throws NoSuchAlgorithmException, InvalidKeyException
{
    //        try {
    Mac hmacSha1;
    try {
      hmacSha1 = Mac.getInstance("HmacSHA1");
    } catch (NoSuchAlgorithmException nsae) {
      hmacSha1 = Mac.getInstance("HMAC-SHA-1");
    }
    SecretKeySpec macKey = new SecretKeySpec(keyBytes, "RAW");
    hmacSha1.init(macKey);

    System.out.println("Algorithm [" + macKey.getAlgorithm() + "] key [" + Helper.bytesToString(macKey.getEncoded()) + "]");
    System.out.println("Final text: " + Helper.bytesToString(text));

    byte[] hash =  hmacSha1.doFinal(text);

    System.out.println("Hash: " + Helper.bytesToString(hash));

    return hash;
}

我添加了System.out.println，这是输出:

Algorithm [RAW] key [3132333435363738393031323334353637383930]
Final text: 0000000000000000
Hash: cc93cf18508d94934c64b65d8ba7667fb7cde4b0

现在在 ruby​​ 中我尝试

require 'openssl' 
#    
#   text: 0000000000000000
#   Key bytes: 3132333435363738393031323334353637383930 
#   Wanted hash = cc93cf18508d94934c64b65d8ba7667fb7cde4b0

digest  = OpenSSL::Digest::Digest.new('sha1')
secret = "12345678901234567890"
secret2 = "3132333435363738393031323334353637383930"
text = "0000000000000000"

puts OpenSSL::HMAC.hexdigest(digest, secret, text)
puts OpenSSL::HMAC.hexdigest(digest, secret, "0")
puts OpenSSL::HMAC.hexdigest(digest, secret2, "0")
puts OpenSSL::HMAC.hexdigest(digest, secret2, text)


puts "Wanted hash: cc93cf18508d94934c64b65d8ba7667fb7cde4b0"

没有一个哈希值匹配，我知道这与编码等有关。我如何匹配 java HMAC ？

Answer 1

实际上，我最终使用了来自 commons-codec-1.5.jar 的实用程序类，如下所示:

import org.apache.commons.codec.binary.Hex;
// (...)
Hex.encodeHexString(rawBytes);