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="";
        //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 = ;

        rijndaelCipher.BlockSize = ;

        byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);

        byte[] keyBytes = new byte[];

        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[];

        ICryptoTransform transform = rijndaelCipher.CreateEncryptor();

        byte[] plainText = Encoding.UTF8.GetBytes(text);

        byte[] cipherBytes = transform.TransformFinalBlock(plainText, , 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 = ;

        rijndaelCipher.BlockSize = ;

        byte[] encryptedData = Convert.FromBase64String(text);

        byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);

        byte[] keyBytes = new byte[];

        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, , encryptedData.Length);

        return Encoding.UTF8.GetString(plainText);

    }

}

参考：

在线DEMO

AES加密CBC模式兼容互通四种编程语言平台【PHP、Javascript、Java、C#】

[C#.NET] 字串及檔案 利用 DES / AES 演算法加解密

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