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  1. using System;
  2. using System.IO;
  3. using System.Security.Cryptography;
  4. using System.Text;
  5.  
  6. public class Test
  7. {
  8. 	public static void Main()
  9. 	{
  10. 		var tempData = "This is the text to encrypt. It's not much, but it's all there is.";
  11.  
  12. using (var rijCrypto = new RijndaelManaged())
  13. {
  14.     byte[] encryptedData;
  15.     rijCrypto.Padding = System.Security.Cryptography.PaddingMode.ISO10126;
  16.     rijCrypto.KeySize = 256;
  17.  
  18.     using (var input = new MemoryStream(Encoding.Unicode.GetBytes(tempData)))
  19.     using (var output = new MemoryStream())
  20.     {
  21.         var encryptor = rijCrypto.CreateEncryptor();
  22.  
  23.         using (var cryptStream = new CryptoStream(output, encryptor, CryptoStreamMode.Write))
  24.         {
  25.             var buffer = new byte[1024];
  26.             var read = input.Read(buffer, 0, buffer.Length);
  27.             while (read > 0)
  28.             {
  29.                 cryptStream.Write(buffer, 0, read);
  30.                 read = input.Read(buffer, 0, buffer.Length);
  31.             }
  32.             cryptStream.FlushFinalBlock();
  33.             encryptedData = output.ToArray();
  34.         }
  35.     }
  36.  
  37.     using (var input = new MemoryStream(encryptedData))
  38.     using (var output = new MemoryStream())
  39.     {
  40.         var decryptor = rijCrypto.CreateDecryptor();
  41.         using (var cryptStream = new CryptoStream(input, decryptor, CryptoStreamMode.Read))
  42.         {
  43.             var buffer = new byte[1024];
  44.             var read = cryptStream.Read(buffer, 0, buffer.Length);
  45.             while (read > 0)
  46.             {
  47.                  output.Write(buffer, 0, read);
  48.                  read = cryptStream.Read(buffer, 0, buffer.Length);
  49.             }
  50.             cryptStream.Flush();
  51.             var result = Encoding.Unicode.GetString(output.ToArray());
  52.             Console.WriteLine(result);
  53.         }
  54.     }
  55. }
  56. 	}
  57. }
Success #stdin #stdout 0.01s 131776KB
comments (?)
stdin 
Standard input is empty
stdout 
This is the text to encrypt. It's not much, but it's all there is.
https://ideone.com/QjWcPi
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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