Eric-Arellano / encrypted-caesar-chat

Allows Caesar and Vigenere encryption of a String through multiple user interfaces (e.g. networked chat app).

Vigenere Encryption

Allows Caesar and Vigenere encryption of a String, with multiple input interfaces including over local network.

For Innovation Week Encryption Workshop.

Install program

1. Clone this repo.
2. Build with command line gradlew build (pc) or ./gradlew build (mac/linux)

Run program

Interactive console app

1. ./run.sh

CLI

1. To encrypt: ./run.sh -e <message> <key>
2. To decrypt: ./run.sh -d <message> <key>

CLI with networking

You must start both a server and a client, which can be done in either order.

Start server

1. To start server and wait for client's message: ./run.sh <port-number>
2. To start server and send message to client when it connects: ./run.sh <port-number> <-e or -d> <message> <key>

Start client

1. To start client and read from specified server: ./run.sh <server-host-name> <port-number>
2. To start client and send message to specified server: ./run.sh <server-host-name> <port-number> <-e or -d> <message> <key>

What I learned

• Traditional encryption/decryption
• Interfaces
• Extended enums (e.g constructors)
• Command line interface
• Networking (TCP/sockets)
• Gradle build tool