C# HMAC_SHA1加密

hmacsha1在很多簽名計算中都很常用了，這里對兩種可能返回的字符串類型做了分類 
一種是直接返回字符串，一種是baset64后返回 
需要看第三方對接文檔中是否有特別說明，調試時如果報錯，要比對串的內容看對方是否做了base64

 

#region HMACSHA1加密  將二進制數據直接轉為字符串返回
        /// <summary>
        /// HMACSHA1加密
        /// </summary>
        /// <param name="text">要加密的原串</param>
        ///<param name="key">私鑰</param>
        /// <returns></returns>
        public static string HMACSHA1Text(string text,string key)
        {
            //HMACSHA1加密
            HMACSHA1 hmacsha1 = new HMACSHA1();
            hmacsha1.Key = System.Text.Encoding.UTF8.GetBytes(key);

            byte[] dataBuffer = System.Text.Encoding.UTF8.GetBytes(text);
            byte[] hashBytes = hmacsha1.ComputeHash(dataBuffer);

            var enText = new StringBuilder();
            foreach (byte iByte in hashBytes)
            {
                enText.AppendFormat("{0:x2}", iByte);
            }
            return enText.ToString();
            
        }
        #endregion

 

 

#region HMACSHA1加密  對二進制數據轉Base64后再返回
        /// <summary>
        /// HMACSHA1加密
        /// </summary>
        /// <param name="text">要加密的原串</param>
        ///<param name="key">私鑰</param>
        /// <returns></returns>
        public static string HMACSHA1Text(string text,string key)
        {
            //HMACSHA1加密
            HMACSHA1 hmacsha1 = new HMACSHA1();
            hmacsha1.Key = System.Text.Encoding.UTF8.GetBytes(key);

            byte[] dataBuffer = System.Text.Encoding.UTF8.GetBytes(text);
            byte[] hashBytes = hmacsha1.ComputeHash(dataBuffer);
            
            return Convert.ToBase64String(hashBytes);
            
        }
        #endregion