将WarpWallet的哈希算法从javascript转换为C#

Question

我正在尝试在C＃中实现扭曲代码。我正在使用CryptSharp进行SCRYPT和PBKDF2实现。但是，我似乎取得的结果与真实的网站不同。

这是我的代码：

static void Main(string[] args)
{
    string randomString = "mypassword";
    byte[] passwordBytes = Encoding.UTF8.GetBytes(randomString);
    byte[] passwordBytesScrypt = new byte[passwordBytes.Length + 1];
    Array.Copy(passwordBytes, 0, passwordBytesScrypt, 0, passwordBytes.Length);
    passwordBytesScrypt[passwordBytes.Length] = 0x1;
    string salt = "[e-mail]";
    byte[] saltBytes = Encoding.UTF8.GetBytes(salt);
    byte[] saltBytesScrypt = new byte[saltBytes.Length + 1];
    Array.Copy(saltBytes, 0, saltBytesScrypt, 0, saltBytes.Length);
    saltBytesScrypt[saltBytes.Length] = 0x1;
    byte[] scryptBytes = CryptSharp.Utility.SCrypt.ComputeDerivedKey(passwordBytesScrypt, saltBytes, 524288, 8, 1, null, 32);
    byte[] passwordBytesPBKDF2 = passwordBytesScrypt;
    passwordBytesPBKDF2[passwordBytes.Length] = 0x2;
    byte[] saltBytesPBKDF2 = saltBytesScrypt;
    saltBytesScrypt[saltBytes.Length] = 0x2;
    byte[] pbkdf2Bytes = CryptSharp.Utility.Pbkdf2.ComputeDerivedKey(new HMACSHA256(passwordBytesPBKDF2), saltBytes, 65536, 32);
}

根据网站（我将代码登录到控制台），scrypt hash结果应为

4dfe98afd8f279e856abdcccce09aa54031fbd7fa39a912bb3caf5ce28648fe6

和pbkdf2哈希结果应为

847c053e66c093927d1f1258b52455675fe6788e537c2073927fbddddfacc0d3

我的Scrypt结果是

790BE1F92DDDF297CF7BACAA69218BE2C67680C706B2A214081A559B8E0EF43D

和pbkdf2

CB640D1C8C13B44712EBCF341FA68F22F90D69AA5BC8427CD5ABED37FDFFE4EF

我不明白我在做什么错。地址表的实现不正确吗？我错过了某个地方吗？我不太了解JavaScript，所以这是完全可能的。任何帮助将不胜感激。

Answer 1

我发现了您的代码两个问题：

1. 2^18不是524288，而是262144。

2. 看来您注入0x1的方式似乎不起作用，我以不同的方式进行了操作：

       string randomString = "mypassword";
       string salt = "[e-mail]";
       //Setup Lists to take the extra byte of the byte array to the end
       var passArrList = new List<byte>();
       var saltArrList = new List<byte>();
       //Get the byte array of incoming passphrase
       byte[] passArr = Encoding.UTF8.GetBytes(randomString);
       //Add the pass byte array to the list
       passArrList.AddRange(passArr);
       //Append the needed 0x1 to the end of the array
       passArrList.Add(1);
       //Get the bytes of the salt
       byte[] saltArr = Encoding.UTF8.GetBytes(salt);
       //Add the salt to the list
       saltArrList.AddRange(saltArr);
       //Append the needed salt to the end
       saltArrList.Add(1);
       byte[] scryptBytes = CryptSharp.Utility.SCrypt.ComputeDerivedKey(passArrList.ToArray(), saltArrList.ToArray(), 262144, 8, 1, null, 32);
       Console.WriteLine(BitConverter.ToString(scryptBytes).Replace("-", ""));
   

Answer 2

此行具有错误：

byte[] scryptBytes = CryptSharp.Utility.SCrypt.ComputeDerivedKey(passwordBytesScrypt, 
  saltBytes, 524288, 8, 1, null, 32);

• @knocte解释2^18不是524288
• 您正在使用saltBytes，而不是saltBytesScrypt已准备好

校正线进行：

byte[] scryptBytes = CryptSharp.Utility.SCrypt.ComputeDerivedKey(passwordBytesScrypt, 
  saltBytesScrypt, 1 << 18, 8, 1, null, 32);

Answer 3

您在代码中撰写了一些错字，我正在使用Linq为了更清楚，您可以按照步骤操作而无需操纵数组。

在第15行，您应该使用1＆lt;＆lt;18和密码bytesscrypt：

byte[] scryptBytes = CryptSharp.Utility.SCrypt.ComputeDerivedKey(passwordBytesScrypt, saltBytes, 524288, 8, 1, null, 32);

和第23行，您应该使用saltbytespbkdf2：

byte[] pbkdf2Bytes = CryptSharp.Utility.Pbkdf2.ComputeDerivedKey(new HMACSHA256(passwordBytesPBKDF2), saltBytes, 65536, 32);

最终代码看起来像：

static void Main(string[] args)
{
    List<byte> extend1 = new List<byte> { 0x1 }, extend2 = new List<byte> { 0x2 };
    string randomString = "mypassword";
    IEnumerable<byte> passwordBytesScrypt = Encoding.UTF8.GetBytes(randomString).Concat(extend1);
    string salt = "[e-mail]";
    IEnumerable<byte> saltBytesScrypt = Encoding.UTF8.GetBytes(salt).Concat(extend1);
    byte[] scryptBytes = CryptSharp.Utility.SCrypt.ComputeDerivedKey(passwordBytesScrypt.ToArray(), saltBytesScrypt.ToArray(), 1 << 18, 8, 1, null, 32);
    byte[] passwordBytesPBKDF2 = passwordBytesScrypt.Take(passwordBytesScrypt.Count() - 1).Concat(extend2).ToArray();
    byte[] saltBytesPBKDF2 = saltBytesScrypt.Take(saltBytesScrypt.Count() - 1).Concat(extend2).ToArray();
    byte[] pbkdf2Bytes = CryptSharp.Utility.Pbkdf2.ComputeDerivedKey(new HMACSHA256(passwordBytesPBKDF2), saltBytesPBKDF2, 65536, 32);
    Console.WriteLine(BitConverter.ToString(scryptBytes).Replace("-", ""));
    Console.WriteLine(BitConverter.ToString(pbkdf2Bytes).Replace("-", ""));
}