Request to Add Resources for Aristocrat, Caesar, Affine, Atbash, Cryptarithm, Baconian, Xenocrypt, and Hill Ciphers

[ruidazeng]

Hi there!

Thanks for maintaining such an awesome list of cryptography resources. I wanted to suggest adding resources for a few classic ciphers and cryptographic puzzles that might be useful for beginners and enthusiasts alike. Specifically, I'm looking for materials on:

• Aristocrat cipher
• Caesar cipher
• Affine cipher
• Atbash cipher
• Cryptarithm
• Baconian cipher
• Xenocrypt
• Hill cipher (2x2 and 3x3 matrices)

These ciphers are often used in educational settings and puzzle challenges, so having some tutorials, documentation, or examples in the list could be beneficial to newcomers exploring cryptography.

Let me know if this is something that could be added, and I'd be happy to help contribute if needed!

Thanks! 😊