C#(.NET) HMAC SHA256实现

HMAC SHA256的实现比较简单，可以用多种语言实现，下面我用C#语言实现，一种结果是居于BASE64,另外一种是居于64位。

C# HMAC SHA256 (Base64)

using System.Security.Cryptography;

namespace Test

{

  public class MyHmac

  {

    private string CreateToken(string message, string secret)

    {

      secret = secret ?? "";

      var encoding = new System.Text.ASCIIEncoding();

      byte[] keyByte = encoding.GetBytes(secret);

      byte[] messageBytes = encoding.GetBytes(message);

      using (var hmacsha256 = new HMACSHA256(keyByte))

      {

        byte[] hashmessage = hmacsha256.ComputeHash(messageBytes);

        return Convert.ToBase64String(hashmessage);

      }

    }

  }

}

C# HMAC SHA256 (64位原始)

public static string Encrypt(string message, string secret)

            {

                secret = secret ?? "";

                var encoding = new System.Text.UTF8Encoding();

                byte[] keyByte = encoding.GetBytes(secret);

                byte[] messageBytes = encoding.GetBytes(message);

                using (var hmacsha256 = new HMACSHA256(keyByte))

                {

                    byte[] hashmessage = hmacsha256.ComputeHash(messageBytes);

                    StringBuilder builder = new StringBuilder();

                    for (int i = ; i < hashmessage.Length; i++)

                    {

                        builder.Append(hashmessage[i].ToString("x2"));

                    }

                    return builder.ToString();

                }

            }

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