encrypt in C#
using System;
using System.IO;
using System.Security.Cryptography;
class Class1
{
static void Main(string[] args)
{
//The key and IV must be the same values that were used
//to encrypt the stream.
byte[] key = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16 };
byte[] iv = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16 };
try
{
//Create a file stream.
FileStream myStream = new FileStream("TestData.txt", FileMode.Open);
//Create a new instance of the default Aes implementation class
Aes aes = Aes.Create();
//Create a CryptoStream, pass it the file stream, and decrypt
//it with the Aes class using the key and IV.
CryptoStream cryptStream = new CryptoStream(
myStream,
aes.CreateDecryptor(key, iv),
CryptoStreamMode.Read);
//Read the stream.
StreamReader sReader = new StreamReader(cryptStream);
//Display the message.
Console.WriteLine("The decrypted original message: {0}", sReader.ReadToEnd());
//Close the streams.
sReader.Close();
myStream.Close();
}
//Catch any exceptions.
catch
{
Console.WriteLine("The decryption failed.");
throw;
}
}
}