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blackf0rk on 03/12/09

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Last Edited at 03/12/09 05:08pm

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Simple String Encryption

/ Published in: VB.NET

Passing in a seed and your string will return an encrypted string. Pass in the same seed and the encrypted string again and it will return the original unencrypted string.

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Public Function EncryptString(ByVal InSeed As Integer, ByVal InString As String) As String
   Dim c1 As Integer
   Dim NewEncryptString As String
   Dim EncryptSeed As Integer
   Dim EncryptChar As String
 
   NewEncryptString = ""
   EncryptSeed = InSeed
   For c1 = 1 To Len(InString)
      EncryptChar = Mid(InString, c1, 1)
      EncryptChar = Chr(Asc(EncryptChar) Xor EncryptSeed)
      EncryptSeed = EncryptSeed Xor c1
      NewEncryptString = NewEncryptString & EncryptChar
   Next
 
   EncryptString = NewEncryptString
End Function

URL: http://codefinds.blogspot.com/2009/01/simple-string-encryption.html

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