AES 128 Encription in SQLSERVERまたはASP.Net

Question

AES 128暗号化形式でデータを返す必要があるWebサービスを作成しようとしています。誰かが私を助けてください、どのように私はこれを達成することができます。

ありがとうございます。

Answer 1

public class EncryptionAES128 
    { 
    static public string EncryptString(string inputString, string key) 
      { 
       string output = ""; 


       Rijndael encryption = new RijndaelManaged(); 

       try 
       { 
        encryption.IV = GenerateIV(); 
        encryption.Key = StringToByte(key); 

        ICryptoTransform encryptor = encryption.CreateEncryptor(encryption.Key, encryption.IV); 

        using (MemoryStream msEncrypt = new MemoryStream()) 
        { 
         using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write)) 
         { 
          using (StreamWriter swEncrypt = new StreamWriter(csEncrypt)) 
          { 
           swEncrypt.Write(inputString); 
          } 

          byte[] cipherText = msEncrypt.ToArray(); 
          byte[] encrypted = new byte[cipherText.Length + encryption.IV.Length]; 

          encryption.IV.CopyTo(encrypted, 0); 
          cipherText.CopyTo(encrypted, IV_LENGTH); 

          output = ByteToString(encrypted); 
         } 
        } 
       } 
       catch (Exception ex) 
       { 
        throw ex; 
       } 


       return output;