Merge pull request #5 from AnkitApurv/master

Added VB.NET implementation

README.md

@@ -9,10 +9,11 @@ Simple implementation of XOR Encryption/Decrypting in various languages, includi
 - [Dart](Dart/xorencryption.dart)
 - [F#](F%23/Program.fs) by [pawelizycki](https://github.com/pawelizycki)
 - [Groovy](Groovy/XOREncryption.groovy)
-- [Java \(Android Compatible\)](Java \(Android compatible\)/XOREncryption.java) 
+- [Java \(Android Compatible\)](Java \(Android compatible\)/XOREncryption.java)
 - [JavaScript \(Node.js Compatible\)](JavaScript/XOREncryption.js)
 - [Objective-C](Objective-C/main.m)
 - [Python](Python/XOREncryption.py)
+- [Visual Basic.NET](VB.NET/XORCrypto.vb)
 
 This implementation goes beyond the basic single-key model to use multiple keys in a particular sequence, making it that much more difficult to brute-force.
 

VB.NET/XORCrypto.vb

@@ -0,0 +1,30 @@
+Module XORCrypto
+
+    Sub Main()
+        Dim input As String = Console.ReadLine()
+        Dim output As String = encryptDecrypt(input)
+        Console.WriteLine("Input : " & input)
+        Console.WriteLine("Output : " & output)
+        Dim rett As String = encryptDecrypt(output)
+        Console.WriteLine("RoundAbout : " & rett)
+        Console.ReadLine()
+    End Sub
+
+    ''' <summary>
+    ''' Encrypts and Decrypts string via XOR Operation
+    ''' </summary>
+    ''' <param name="input">String to be encrypted/decrypted</param>
+    ''' <returns>Encrypted/Decrypted output string</returns>
+    Private Function encryptDecrypt(input As String) As String
+        Dim key As Char() = {"K"c, "C"c, "Q"c}
+        'Any chars will work, in an array of any size
+        Dim output As Char() = New Char(input.Length - 1) {}
+        For i As Integer = 0 To input.Length - 1
+            output(i) = ChrW(AscW(input(i)) Xor AscW(key(i Mod key.Length)))
+            'ChrW(CharCode As Integer) As Char (Unicode) : Returns the character associated with the specified character code
+            'AscW([String] As Char) As Integer (Unicode) : Returns an integer value representing the character code corresponding to a character
+        Next
+        Return New String(output)
+    End Function
+
+End Module