[解决警告]MD5加密已过时

1.问题描述：MD5加密已过时

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　　　　　　　    “FormsAuthentication.HashPasswordForStoringInConfigFile(string, string)”

　　　　　　　　 已过时:“

警告   CS0618      recommended alternative is to use the Membership APIs, such as

                            Membership.CreateUser. For XXX   AppHelper.cs

                            more information, see http://go.microsoft.com/fwlink/?LinkId=252463.”

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2.发生地点：AppHelper.cs

public static string EncodeMd5(string str)
{
    return System.Web.Security.
FormsAuthentication.HashPasswordForStoringInConfigFile(str, "md5");
}

3.解决方法：

public static string EncodeMd5(string str)
{
     return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "md5");
     MD5CryptoServiceProvider md5Hasher = new MD5CryptoServiceProvider();
     byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(str));
     StringBuilder sBuilder = new StringBuilder();
     for (int i = 0; i < data.Length; i++)
     {
          sBuilder.Append(data[i].ToString("x2"));
     }
     return sBuilder.ToString();
}