Secure communicator app

Secure communicator app is a simple app that allows exchange of encrypted messages between Bob and Alice without being eavesdropped by Eve.

How to:

• install dependencies: npm install
• start the communicator app: npm run start:app
• start the eavesdropper app: npm run start:eavesdropper
• run the tests: npm run test

Used technologies

• Node.js
  • file system module
    • local files are used for the message exchange
  • crypto module
    • Asymmetric encryption, with public key-private key pairs is used to encrypt and decrypt the messages (only the public keys are stored in local files so that they can be used across multiple processes/application)
• Inquirer.js for CLI questions and input
• Jest.js for tests

Potential improvements

• introduce sockets for more seamless communication
• add Typescript for better type safety of the code
• write more unit and integration tests