C＃中的HMAC Sha256等效于节点

Question

我试图将一个C＃应用程序移植到节点中。 应用程序有这个C＃函数生成一个SHA256

public static string CreateSHA256Signature(string targetText) 
     { 
      string _secureSecret = "E49756B4C8FAB4E48222A3E7F3B97CC3"; 
      byte[] convertedHash = new byte[_secureSecret.Length/2]; 
      for (int i = 0; i < _secureSecret.Length/2; i++) 
      { 
       convertedHash[i] = (byte)Int32.Parse(_secureSecret.Substring(i * 2, 2), System.Globalization.NumberStyles.HexNumber); 
      } 


      string hexHash = ""; 
      using (HMACSHA256 hasher = new HMACSHA256(convertedHash)) 
      { 
       byte[] hashValue = hasher.ComputeHash(Encoding.UTF8.GetBytes(targetText)); 
       foreach (byte b in hashValue) 
       { 
        hexHash += b.ToString("X2"); 
       } 
      } 
      return hexHash; 
     } 
    Response.Write(CreateSHA256Signature("TEST STRING")); 
    // returns 55A891E416F480D5BE52B7985557B24A1028E4DAB79B64D0C5088F948EB3F52E 

我试图使用节点加密如下：

console.log(crypto.createHmac('sha256', 'E49756B4C8FAB4E48222A3E7F3B97CC3').update('TEST STRING', 'utf-8').digest('hex')) 
// returns bc0a28c3f60d323404bca7dfc4261d1280ce46e887dc991beb2c5bf5e7ec6100 

我怎样才能在节点相同的C＃的结果？

Answer 1

您的密钥与C＃版本不同。尝试将十六进制字符串转换为原始字节。这种方式加密知道采取字节，而不是实际的字符串。

例如：

var crypto = require('crypto'); 

var key = Buffer.from('E49756B4C8FAB4E48222A3E7F3B97CC3', 'hex'); 
console.log(crypto.createHmac('sha256', key).update('TEST STRING').digest('hex')) 

Answer 2

对于Python忍者

import hmac 
import hashlib 
import binascii 

def create_sha256_signature(key, message): 
    byte_key = binascii.unhexlify(key) 
    message = message.encode() 
    return hmac.new(byte_key, message, hashlib.sha256).hexdigest().upper() 

http://www.pyscoop.com/generate-hmac-sha256-signature-in-python/