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Visual Basic Encryption - Computing Task

Hey,

So i've completed Task 1 of my coursework which was to create a ceaser cipher program on Visual Basic to encrypt the data. Now I have to do another task which requires me to use a keyword to encrypt the data.

Help ???

Thanks,
Zac

Reply 1

nerak99

Well, you need to take a keyword and from the keyword create a key using some algorithm or other. Once you have this key, probably extend its length to the same as the data to encrypt, possibly by just repeating the key.

Finally, do a binary or bit by bit on the original data with the extended key.

All of this us in binary and be careful with Visual Basic binary methods in that you need to be clear what the method is doing.