Task 1

[weavc]

1.1 Develop a simple menu based (gui or text based) substitution cipher tool (such as a Caesar cipher). The cipher tool should provide both encryption function and decryption function. The parameters for the encryption function are the plaintext and the key while the parameters for the decryption are the ciphertext and the key;

Done

1.2 Develop your own substitution tool that will, given a ciphertext encrypted by substitution cypher, return the suggested plaintext based on English letter frequencies.

In progress

1.3 In order to understand the weakness of substitution ciphers, decrypt the three ciphertext in the Appendix 1.

Done

1.4 Develop a tool that makes use of an advance cryptographic technique of your choosing. This tool should both encrypt and decrypt messages.

Done

1.5 Finally if you are feeling really brave develop a way of breaking (via brute force or some other method) the technique you have implemented in 1.4

Not started

[cojocar2]

1.2 done. Added a C++ version for 1.1 as well :)