.NET AES加解密（128位）

 1         /// <summary>
 2         /// 有密码的AES加密 
 3         /// </summary>
 4         internal static string Encrypt(string toEncrypt)
 5         {
 6             var keyArray = Encoding.GetEncoding(Charset).GetBytes(key);;
 7             var toEncryptArray = Encoding.GetEncoding(Charset).GetBytes(toEncrypt);
 8             using (var acsp = new AesCryptoServiceProvider { KeySize = 128, BlockSize = 128 })
 9             {
10                 acsp.GenerateIV();
11                 using (var aes = new AesCryptoServiceProvider { Key = keyArray, IV = acsp.IV, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 })
12                 {
13                     byte[] resultArray;
14                     using (var cTransform = aes.CreateEncryptor())
15                     {
16                         resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
17                     }
18                     return Convert.ToBase64String(resultArray);
19                 }
20             }
21         }

 1         /// <summary>
 2         /// AES解密
 3         /// </summary>
 4         internal static string Decrypt(string toDecrypt, string key)
 5         {
 6             var keyArray = Encoding.GetEncoding(Charset).GetBytes(key);
 7             var toDecryptArray = Convert.FromBase64String(toDecrypt);
 8             using (var acsp = new AesCryptoServiceProvider { KeySize = 128, BlockSize = 128 })
 9             {
10                 acsp.GenerateIV();
11                 using (var aes = new AesCryptoServiceProvider { Key = keyArray, IV = acsp.IV, Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 })
12                 {
13                     byte[] resultArray;
14                     using (var cTransform = aes.CreateDecryptor())
15                     {
16                         resultArray = cTransform.TransformFinalBlock(toDecryptArray, 0, toDecryptArray.Length);
17                     }
18                     return Encoding.GetEncoding(Charset).GetString(resultArray);
19                 }
20             }
21         }