Encrypt Decrypt C# PROGRAMMING

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well i'm in middle of doing some program that allows me to do the following ciphers

1-caesar cipher
2-affine cipher
3-playfair cipher
4-hill cipher
5-vegenere cipher
6-one-time pad cipher

and the program should read the text from both a file and a textbox in the program
then it should ask which cipher do you want to use encrypting your text and what is the key for your cipher then write the encrypted text to a file and the program

and vice versa it should ask for the encrypted text from textbox or file then applying the decrypt algorithm using the key to get the decrypted text on a file and the program

i know its a lot to ask for but i really appreciate if someone helped me out of this.

Posted 14-Nov-12 4:39am

yamen-nassif

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lewax00 14-Nov-12 11:40am

I'm sure someone here is willing to help you. The key word here is "help", you will have to do something yourself before anyone can help you though, no one here is going to do your homework for you.

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Thomas Daniels · Accepted Answer · 2012-11-14T04:42:00

Solution 1

Hi,

Have a look here:
Classical Encryption Techniques (4 of the methods you want to use are explained in this article: Caesar, Playfair, Vigerene and Hill)[^]
Affine cipher C#[^]
One-time pad cipher[^]

Posted 14-Nov-12 4:42am

Thomas Daniels

Updated 14-Nov-12 5:05am

v3

Comments

yamen-nassif 14-Nov-12 10:50am

Thanks
but i didn't help as you see i need specific code with specific ciphers

the first article would encrypt and decrypt using one algorithm
and the other one using RSA encryption both of them are helpless for me :(

Richard C Bishop 14-Nov-12 11:01am

If you didn't need help then why are you posting on this forum?

Thomas Daniels 14-Nov-12 11:05am

Ok. I updated my answer.