CiphersCiphers have been around for hundreds of years, and have often been used in love and war. In the following, we will analyse some traditional ciphers, and create a basic calculator to compute the cipher. Fundamentals
Graphical Ciphers
Key ciphers
Text-based CiphersThese methods generally have some form of mapping that takes them from the plaintext to the ciphertext. Unfortunately knowing the conversion method leaves the code open to attack.
Key CrackingThese methods generally have some form of mapping that takes them from the plaintext to the ciphertext, which changes with the usage of a special key. The key normally means that it is more secure than standard key-less methods, but they can be broken using methods such as brute-force
Some tests |
Presentations