A Vigenere encryptor and decryptor in C#

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A Vigenere encryptor and decryptor in C#(psgr.net)

submitted by cybyvlad(45) 4 years, 7 months ago

The Vigenere cryptosystem is a simple cryptosystem that allows you to encrypt and decrypt text really fast but that comes with a twist:it is not safe. This is a cryptosystem that is mostly suitable for simple mobile application where computing power is quite low and the data is not critical. This cryptosystem is easily broken and should NEVER be used in a mission critical application.

4 comments |category: C# |Views: 795
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posted by brianjlowry(640) 4 years, 7 months ago 0

If it is not safe, then why use it at all?

posted by akcoder(830) 4 years, 7 months ago 0

This post breaks the #1 rule of cryptography... NEVER roll your own!

Plus this article doesn't really talk about or describe this home-grown crypto algorithm, only talks minimally how to use it...

posted by cybyvlad(45) 4 years, 7 months ago 0

I can talk about it and I can talk about a method to break it. It is useful for small devices as it is really really fast.

posted by cybyvlad(45) 4 years, 7 months ago 0

For more info about this cryptosystem try http://en.wikipedia.org/wiki/Vigen%C3%A8re_cipher

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