OrderSystem/Framework/Bowin.Common/HmacSHA1/Encoder.cs

using System;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;

namespace Bowin.Common.HmacSHA1
{
    public class HMACSHA1Encoder
    {
        public static string Encode(string key, string text)
        {
            var keyByte = Encoding.UTF8.GetBytes(key);
            var textByte = Encoding.UTF8.GetBytes(text);
            HMACSHA1 hmac = new HMACSHA1(keyByte);
            hmac.Initialize();

            return Convert.ToBase64String(hmac.ComputeHash(textByte));
        }
    }
}