Freaks City

Base64 Decoding: The challange name explicitly indicates Base64 encoding. After downloading the provided text file, decoding its contents using any standard Base64 decoder yields the flag directly. The ciphertext is: The sequence: The ciphertext is: The input consists of - and . symbols grouped by slashes — a classic Morse represe ...

The puzzle presents a substitution pattern where characters shift forward by two positions in the alphabet: K becomes M, O becomes Q, and E becomes G. This classic Caesar cipher requires transforming each letter in the provided ciphertext to reveal instructions for advancing to the next stage. Implementing the solution using Python 3's str.make ...

This program implements a file encryption utility in 8086 assembly language, fulfilling the requirements of a computer architecture assignment. It reads a text file, converts all letters to uppercase, analyzes letter frequencies, derives an encryption key based on frequency ranking, applies a substitution cipher to both letters and digits, and ...