Click here for Part 1
1.Open visual studio and create a project
2.Add the following assembly on the page
Imports
System.Security
Imports
System.Security.Cryptography
Imports
System.Text
Imports
System.IO
3.Now write the Code in the
Page
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 DecryptedFile As
FileStream = New FileStream("Encrypted.txt",
FileMode.Open, FileAccess.Read)
Dim myICryptoTransform
As ICryptoTransform = myDESProvider.CreateDecryptor(myDESProvider.Key,
myDESProvider.IV)
Dim myCryptoStream As
CryptoStream = New CryptoStream(DecryptedFile,
myICryptoTransform, CryptoStreamMode.Read)
Dim myDecStreamReader
As New StreamReader(myCryptoStream)
Dim
myDecStreamWriter As
New StreamWriter("Decrypted.txt")
myDecStreamWriter.Write(myDecStreamReader.ReadToEnd())
myCryptoStream.Close()
myDecStreamReader.Close()
myDecStreamWriter.Close()
Catch ex As
Exception
Console.WriteLine(ex.ToString())
End Try
Console.ReadLine()
End Sub
End Class
4.Now
convert the Encrypted. text file in the folder D:\New Folder
(2)\ConsoleApplication4\ConsoleApplication4\bin\Debug (My text file path) to
Decrypted.txt file.
Now start
debugging, you will see a Encrypted.txt automatically converted into
Decrypted.text file.