如何在一个页面上加密字符串并在另一个页面上解密 [英] How to Encrypt a string on one page and decrypt on another page

问题描述

如何在一个页面上加密字符串并在另一个页面上解密

How to Encrypt a string on one page and decrypt on another page

推荐答案

请尝试如下。



要加密

Please try is as below.

To Encrypt

public static string EncryptData(string Message)
{
    byte[] Results;
    System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
    MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider();
    byte[] TDESKey = HashProvider.ComputeHash(UTF8.GetBytes(passphrase));
    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

To Decrypt

public static string DecryptString(string Message)
{
    byte[] Results;
    System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
    MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider();
    byte[] TDESKey = HashProvider.ComputeHash(UTF8.GetBytes(passphrase));
    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);
}

以下是更多信息的链接：



加密/解密功能在.NET中使用TripleDESCryptoServiceProvider类 [ ^ ]

Here is the Link for more info :

Encryption/Decryption Function in .NET using the TripleDESCryptoServiceProvider Class[^]

这篇关于如何在一个页面上加密字符串并在另一个页面上解密的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！