Converse

End-to-end encrypted group chat built with Java, Spring Boot and RabbitMQ

What is this?

I wrote this primarily because I needed to do a project with Java for university and I had always wanted to try solving some cryptography challenges. This application provides the following features:

• Enables group chat using only RabbitMQ as the broker
• Provides a naive implementation of the Diffie–Hellman key exchange algorithm to establish a common secret between the chatting parties
• Provides a mechanism for joining users to securely receive the group's secret in an efficient and fault-tolerant manner (Using, again, RabbitMQ)
• Encrypts/decrypts the message as needed based on the established shared secret
• Optionall writes the encrypted messages to a provided database

Requirements

• Java Runtime, obviously...
• RabbitMQ installed with default configuration on localhost
• (Optional) Account and API key from restdb.io for the persistence layer
• You can configure these properties by taking a look at the application.properties file