cryptography and ciphers techniques

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Well my project for scientific calculator is rejected by my lecturer so now I need to start all again.

I am thinking of creating a java or c++ program which will accept a password and ask for key to encrypt it. I will provide numbers to key and only 2 keys will be used.

1st key will be for mono-alphabetic cipher for which I think switch cases would be used and other key can be Hill or vigenere cipher.

But I am not getting any idea for vigenere cipher please help me on how can I write code for this. I hope you all know about this technique and if possible please suggest any other simple cipher technique.

Also then I am looking to make a decryption program which will decrypt the encrypted password which will be send by encryption program and key will be supplied as decide by user earlier.

Thanks

Posted 20-Dec-11 0:56am

CurrentlyBE

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Nagy Vilmos 20-Dec-11 9:12am

If you are going to write a cypher, an important part is the decryption.

CurrentlyBE 20-Dec-11 12:12pm

Sir I know whats vigenere cipher technique is but for me it is difficult to code for the logic that it uses with the matrix combinations.

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Nagy Vilmos · Answer 1 · 2011-12-20T03:11:00

Solution 1

I might be able to help you with finding information[^]

Posted 20-Dec-11 3:11am

Nagy Vilmos