C# 實現AES加密解密

看AES加密過程和原理可以看這篇博客：AES加密過程詳解
下面寫一下具體的實現代碼：
AES加密：

/// <summary>
/// 加密
/// </summary>
/// <returns></returns>
private string EncryptAES(string data)
 {
      var aes = new AesCryptoServiceProvider
      {
           Key = Encoding.UTF8.GetBytes(Config.Key),
           Mode = CipherMode.CBC,
           IV = Encoding.UTF8.GetBytes(Config.Iv)
       };
 
       var bufferBytes = Encoding.UTF8.GetBytes(data);
       var aesData = Convert.ToBase64String(aes.CreateEncryptor().TransformFinalBlock(bufferBytes, 0, bufferBytes.Length));
       return aesData;
 }

AES解密：

/// <summary>
/// 解密
/// </summary>
/// <param name="pToDecrypt"></param>
/// <returns></returns>
public string DecryptAES(string pToDecrypt)
{
     var aes = new AesCryptoServiceProvider
     {
          Key = Encoding.UTF8.GetBytes(Config.Key),
          Mode = CipherMode.CBC,
          IV = Encoding.UTF8.GetBytes(Config.Iv)
     };
     //DES.Padding = PaddingMode.PKCS7;
     ICryptoTransform DESDecrypt = aes.CreateDecryptor();
     byte[] Buffer = Convert.FromBase64String(pToDecrypt);
     return Encoding.UTF8.GetString(DESDecrypt.TransformFinalBlock(Buffer, 0, Buffer.Length));
}