Secure Group Chat

Description

A secure group chat application using a PGP-based cryptosystem.

Getting Started

Requirements

The following dependencies are required (with recommended versions):

• Java 15

Note: Gradle is used for build automation but need not be installed.

Installation

Follow these instructions to build the project:

Windows

1. cd secure-group-chat

2. gradlew build

Unix

1. cd secure-group-chat

2. ./gradlew build

Usage

Once the project is built, run the following commands to:

1. Run the certificate authority
2. Run the server
3. Run 3 separate clients (-debug flag displays detailed PGP message encoding/decoding and transmission logs, remove it to use the application normally)

Windows

1. run ca
2. run server
3. run client -debug or run client (in 3 separate terminals)

Unix

1. ./run ca
2. ./run server
3. ./run client -debug or ./run client (in 3 separate terminals)

To terminate a client application, simply type quit and press enter.

Clean

To remove build-related artefacts and files, run:

Windows

1. gradlew clean

Unix

1. ./gradlew clean

Assumptions

• When using the application, we assume client names entered are case-insenstive distinct (i.e. we do not permit "Carl" and "carl" as two separate client names, as certificate aliases are case-insensitive).

Authors

• Jaron Cohen
• Bailey Green
• Carl Combrinck