Imports System.Security
Imports System.Security.Cryptography
Imports System.Text
Imports System.IO
Public Class Tester
Public Shared Sub Main
Try
Dim myDESProvider As DESCryptoServiceProvider = New DESCryptoServiceProvider()
myDESProvider.Key = ASCIIEncoding.ASCII.GetBytes("12345678")
myDESProvider.IV = ASCIIEncoding.ASCII.GetBytes("12345678")
Dim myICryptoTransform As ICryptoTransform = myDESProvider.CreateEncryptor(myDESProvider.Key, myDESProvider.IV)
Dim ProcessFileStream As FileStream = New FileStream("test.txt", FileMode.Open, FileAccess.Read)
Dim ResultFileStream As FileStream = New FileStream("testDes.txt", FileMode.Create, FileAccess.Write)
Dim myCryptoStream As CryptoStream = New CryptoStream(ResultFileStream, myICryptoTransform, CryptoStreamMode.Write)
Dim bytearrayinput(ProcessFileStream.Length - 1) As Byte
ProcessFileStream.Read(bytearrayinput, 0, bytearrayinput.Length)
myCryptoStream.Write(bytearrayinput, 0, bytearrayinput.Length)
myCryptoStream.Close()
ProcessFileStream.Close()
ResultFileStream.Close()
Catch ex As Exception
Console.WriteLine(ex.Message)
End Try
End Sub
End Class