fork download
copy 
  1. using System;
  2. using System.Security.Cryptography;
  3. using System.Text;
  4. namespace AESExample
  5. {
  6.     class Program
  7.     {
  8.         static void Main(string[] args)
  9.         {
  10.             Aes aes = Aes.Create();
  11.             aes.KeySize = 256;
  12.             aes.Mode = CipherMode.CBC;
  13.             aes.GenerateKey();
  14.             aes.GenerateIV();
  15.             string plaintext = "Hello, world!";
  16.             byte[] ciphertext;
  17.             using (ICryptoTransform encryptor = aes.CreateEncryptor())
  18.             {
  19.                 byte[] plaintextBytes = Encoding.UTF8.GetBytes(plaintext);
  20.                 ciphertext = encryptor.TransformFinalBlock(plaintextBytes, 0, plaintextBytes.Length);
  21.             }
  22.             string decryptedText;
  23.             using (ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV))
  24.             {
  25.                 byte[] decryptedBytes = decryptor.TransformFinalBlock(ciphertext, 0, ciphertext.Length);
  26.                 decryptedText = Encoding.UTF8.GetString(decryptedBytes);
  27.             }
  28.             Console.WriteLine($"Plaintext: {plaintext}");
  29.             Console.WriteLine($"Ciphertext: {Convert.ToBase64String(ciphertext)}");
  30.             Console.WriteLine($"Decrypted text: {decryptedText}");
  31.         }
  32.     }
  33. }
Success #stdin #stdout 0.07s 33068KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Plaintext: Hello, world!
Ciphertext: s9Pev/wGcgKhDklRXb5upw==
Decrypted text: Hello, world!
https://ideone.com/wwQ66u
language:
C# (NET 6.0)
created:
37 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!