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Apr 10, 2012

I have this code which shifts the alphabet by a certain amount. The size of the alphabet is 26. When I enter a larger size shift (for example 22) I get some weird characters displaying. I think I need to mod the ASCII alphabet to 26 to get it working but Im not quite sure which bit to mod. Basically I need to wrap around the alphabet (once it reaches Z it goes back to letter A) Do I have to create a dictionary for the mod to work (like A = 0... Z = 26) or can I stick with using the normal ASCII table? Here is the code below:

Public Function encrypt(ByVal input As String) 'input is a variable within the funcion
Dim n as Integer
Dim i As Integer

[code]....

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[code]...

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[Code]...

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[Code]...

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[code].....

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[Code]...

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[Code]...

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