C# AES加密解密

完整代码：
/******************************************************************
 * 创建人：HTL
 * 创建时间：2015-04-17 17:36:35
 * 说明：C# AES加密解密
 * Email：huangyuan413026@163.com
 *******************************************************************/
using System;
using System.Security.Cryptography;
using System.Text;
using System.IO;
public class Test
{
    public static void Main()
    {
        //密码
        string password="1234567890123456";
        //加密初始化向量
        string iv="                ";     
        string message=AESEncrypt("abcdefghigklmnopqrstuvwxyz0123456789",password,iv);
        Console.WriteLine(message);
 
        message=AESDecrypt("8Z3dZzqn05FmiuBLowExK0CAbs4TY2GorC2dDPVlsn/tP+VuJGePqIMv1uSaVErr",password,iv);
 
        Console.WriteLine(message);
    }
 
 
    /// <summary>
    /// AES加密 
    /// </summary>
    /// <param name="text">加密字符</param>
    /// <param name="password">加密的密码</param>
    /// <param name="iv">密钥</param>
    /// <returns></returns>
    public static string AESEncrypt(string text, string password, string iv)
    {
        RijndaelManaged rijndaelCipher = new RijndaelManaged();
 
        rijndaelCipher.Mode = CipherMode.CBC;
 
        rijndaelCipher.Padding = PaddingMode.PKCS7;
 
        rijndaelCipher.KeySize = 128;
 
        rijndaelCipher.BlockSize = 128;
 
        byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);
 
        byte[] keyBytes = new byte[16];
 
        int len = pwdBytes.Length;
 
        if (len > keyBytes.Length) len = keyBytes.Length;
 
        System.Array.Copy(pwdBytes, keyBytes, len);
 
        rijndaelCipher.Key = keyBytes;
 
 
        byte[] ivBytes = System.Text.Encoding.UTF8.GetBytes(iv);
        rijndaelCipher.IV =  new byte[16];
 
        ICryptoTransform transform = rijndaelCipher.CreateEncryptor();
 
        byte[] plainText = Encoding.UTF8.GetBytes(text);
 
        byte[] cipherBytes = transform.TransformFinalBlock(plainText, 0, plainText.Length);
 
        return Convert.ToBase64String(cipherBytes);
 
    }
    /// <summary>
    /// AES解密
    /// </summary>
    /// <param name="text"></param>
    /// <param name="password"></param>
    /// <param name="iv"></param>
    /// <returns></returns>
    public static string AESDecrypt(string text, string password, string iv)
    {
        RijndaelManaged rijndaelCipher = new RijndaelManaged();
 
        rijndaelCipher.Mode = CipherMode.CBC;
 
        rijndaelCipher.Padding = PaddingMode.PKCS7;
 
        rijndaelCipher.KeySize = 128;
 
        rijndaelCipher.BlockSize = 128;
 
        byte[] encryptedData = Convert.FromBase64String(text);
 
        byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);
 
        byte[] keyBytes = new byte[16];
 
        int len = pwdBytes.Length;
 
        if (len > keyBytes.Length) len = keyBytes.Length;
 
        System.Array.Copy(pwdBytes, keyBytes, len);
 
        rijndaelCipher.Key = keyBytes;
 
        byte[] ivBytes = System.Text.Encoding.UTF8.GetBytes(iv);
        rijndaelCipher.IV = ivBytes;
 
        ICryptoTransform transform = rijndaelCipher.CreateDecryptor();
 
        byte[] plainText = transform.TransformFinalBlock(encryptedData, 0, encryptedData.Length);
 
        return Encoding.UTF8.GetString(plainText);
 
    }
 
}

 

 

参考：

 



posted @ 2015-04-17 19:08  HTL  阅读(18843)  评论(1)  编辑  收藏  举报
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