Originally built in 2023 as a learning exercise. Uploaded in 2025 for portfolio visibility. The code reflects the practices and scope from that period. Goal: Implement simple classical ciphers (Caesar ...

This Python project implements a substitution cipher tool for encrypting and decrypting messages. Users can create custom cipher keys, encrypt messages using these keys, and save encrypted messages ...

Cryptography puts the “crypto” in cryptocurrency. It has existed much longer than our digital age and has evolved like languages over the centuries. One of the most famous uses was developed by Julius ...

You can make a message secret in countless different ways. One common way is to use a substitution cipher, in which one letter is substituted for another. Another is to employ a transposition cipher, ...