MD5加密，web和winform

Web

 

/// 
        /// 获取获取MD5加密后字符串        /// 
        /// 源字符串        /// 加密位数(16或32)        /// 是否大写        /// 
              public static string Md5Encode(string sourceString, int digits, bool isToUpper)        {            if (string.IsNullOrEmpty(sourceString))                return string.Empty;            var targetString = digits == 16                                   ? System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(                                       sourceString, "MD5").Substring(8, 16)                                   : System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(                                       sourceString, "MD5");            if (targetString != null) return isToUpper ? targetString.ToUpper() : targetString.ToLower();            return null;        }

Winform

 

/// 
        /// 加密        /// 
        /// 加密字符串        /// 
              private string MD5(string source)        {            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();            byte[] encryptedBytes = md5.ComputeHash(Encoding.ASCII.GetBytes(source));            StringBuilder sb = new StringBuilder();            for (int i = 0; i < encryptedBytes.Length; i++)            {                sb.AppendFormat("{0:X2}", encryptedBytes[i]);            }            return sb.ToString();        }

 16位：截取8到16位，Substring(8, 16)