Question

For this project, you need to develop a game that converts normal English words into secret codes. In order to convert, the program randomly applies an encryption algorithm to any given message. The algorithms you need to implement include substitution, Playfair Caesar Iransposition Product, and RSA ciphers.

1. Substitution cipher: replacing each letter of the alphabet in the plaintext with a different letter in the ciphertext. For example, if you want to encrypt the word 'Cat', you need to come up with a substitution for each plaintext letter to a ciphertext letter. For example, you may substitute the letter 'a' with the letter ' 0 '. The rule is that the letter we substitute can only be used once. So, the letter ' 0 ' is crossed off as it has already been used. The same would be applied to all alphabetic letters.

Answer 1

The question covers the development of an encryption game incorporating substitution and transposition ciphers, including historical methods like Playfair and Caesar ciphers, as well as modern RSA encryption. The goal is to convert plain English words into code, offering a playful approach to understanding cryptography.

Step-by-step explanation:

The question involves creating a game that applies various encryption algorithms to convert normal English words into secret codes. Among these algorithms are the substitution cipher, transposition cipher, and historical references such as the Playfair and the Caesar ciphers. Additionally, modern encryption such as the RSA cipher is mentioned. For example, the substitution cipher replaces each letter of the plaintext with a different letter in the ciphertext, ensuring that each substituted letter is used only once. Transposition ciphers, such as the one used in the Zimmerman Telegram, rearrange the letters of the plaintext according to a rule, which can be dictated by a keyword and applied to blocks of text.

Other rules presented for this encryption game involve various letter substitutions and scrambling, which integrate concepts from both transposition and substitution ciphers. These puzzles provide an engaging way to learn about classical encryption techniques as well as the basics of cryptography. The process of encryption changes the appearance of words, but with the right key or rule, the original message can be deciphered, similar to alchemy's transformation of lead into gold.