MD5加密技术

最新推荐文章于 2022-08-10 08:57:34 发布

dingliqin

最新推荐文章于 2022-08-10 08:57:34 发布

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CC 4.0 BY-SA版权

文章标签：加密 string byte buffer

本文链接：https://blog.youkuaiyun.com/dingliqin/article/details/6489519

   public static string MD5(string text)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] inputText = Encoding.Default.GetBytes(text);

byte[] buffer = md5.ComputeHash(inputText);
md5.Clear();

            string str = string.Empty;
            for (int i = 0; i < buffer.Length; i++)
            {
                str += buffer[i].ToString("x").PadLeft(2, '0');
            }
            return str;
        }

        //public static string Encrypt(string text)
        //{
        //    return Encrypt(text, "ghiegcge");
        //}
        //public static string Encrypt(string text, string sKey)
        //{
        //    DESCryptoServiceProvider des = new DESCryptoServiceProvider();
        //    byte[] inpuText = Encoding.Default.GetBytes(text);

// des.IV = Encoding.Default.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile("sKey", "md5").Substring(0, 8));
// des.Key = Encoding.Default.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile("sKey", "md5").Substring(0, 8));

        //    MemoryStream ms = new MemoryStream();
        //    CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
        //    cs.Write(inpuText, 0, inpuText.Length);
        //    cs.FlushFinalBlock();
        //    StringBuilder sb = new StringBuilder();
        //    foreach (byte b in ms.ToArray())
        //    {
        //        sb.AppendFormat("{0:x2}", b);
        //    }
        //    return sb.ToString();
        //}

        //public static string Decrypt(string text)
        //{
        //    return Decrypt(text, "ghiegcge");
        //}

        //public static string Decrypt(string text, string sKey)
        //{
        //    DESCryptoServiceProvider des = new DESCryptoServiceProvider();

        //    byte[] inputText = new byte[text.Length / 2];
        //    int i, x;
        //    for (x = 0; x < text.Length / 2; x++)
        //    {
        //        i = Convert.ToInt32(text.Substring(x * 2, 2), 16);
        //        inputText[x] = (byte)i;
        //    }
        //    des.IV = Encoding.Default.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile("sKey", "md5").Substring(0, 8));
        //    des.Key = Encoding.Default.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile("sKey", "md5").Substring(0, 8));

// MemoryStream ms = new MemoryStream();

// CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);

// cs.Write(inputText, 0, inputText.Length);
// cs.FlushFinalBlock();

// return Encoding.Default.GetString(ms.ToArray());

//}