Text-Encryption-Tool

C++ program implementing classical cipher algorithms such as Caesar and substitution encryption.

Skills: C++, ASCII manipulation, string processing, Makefiles, CLI, unit testing

🧩 Overview

• Encrypts and decrypts text messages using shift or substitution keys.
• Includes test suites for verifying correctness.
• Command-line interface for interactive use.

⚙️ Build & Run

make
./cipher_tests
./cipher_main "Attack at dawn" --shift 3