Question

我想加密我的密码并存储到我的数据库SQL Server 2008 R2。为此，我从文本框中取出密码并使用适当的功能加密，并希望存储在后端。

告诉我必须使用哪种数据类型加密密码列。

Answer 1

命名空间：

using System.Security.Cryptography;

加密功能：

public static string Encrypt(string Message)
        {

            string Password = Message;
            byte[] Results;
            System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
            MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider();
            byte[] TDESKey = HashProvider.ComputeHash(UTF8.GetBytes(Password));
            TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider();
            TDESAlgorithm.Key = TDESKey;
            TDESAlgorithm.Mode = CipherMode.ECB;
            TDESAlgorithm.Padding = PaddingMode.PKCS7;
            byte[] DataToEncrypt = UTF8.GetBytes(Message);
            try
            {
                ICryptoTransform Encryptor = TDESAlgorithm.CreateEncryptor();
                Results = Encryptor.TransformFinalBlock(DataToEncrypt, 0, DataToEncrypt.Length);
            }
            finally
            {
                TDESAlgorithm.Clear();
                HashProvider.Clear();
            }
            return Convert.ToBase64String(Results);
        }

解密功能：

public static string Decrypt(string Message)
        {
            string Password = Message;
            byte[] Results;
            System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
            MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider();
            byte[] TDESKey = HashProvider.ComputeHash(UTF8.GetBytes(Password));
            TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider();
            TDESAlgorithm.Key = TDESKey;
            TDESAlgorithm.Mode = CipherMode.ECB;
            TDESAlgorithm.Padding = PaddingMode.PKCS7;
            byte[] DataToDecrypt = Convert.FromBase64String(Message);
            try
            {
                ICryptoTransform Decryptor = TDESAlgorithm.CreateDecryptor();
                Results = Decryptor.TransformFinalBlock(DataToDecrypt, 0, DataToDecrypt.Length);
            }
            finally
            {
                TDESAlgorithm.Clear();
                HashProvider.Clear();
            }
            return UTF8.GetString(Results);
        }

如何使用？

加密：

string encryptpassword=Encrypt(txtPassword.Text.Trim());

对于Decrypt：

string decryptpassword=Decrypt(txtPassword.Text.Trim());

注意：txtPassword是一个文本框，您可以在其中输入密码

加密密码的数据类型

1 个答案: