One Time Chat – A Toy End-to-End Encrypted Web Messaging Service

In the digital age, instant messaging (IM) is a cornerstone of communication, necessitating secure and efficient platforms. The One Time Chat web application addresses this need through end-to-end encryption and a serverless design, ensuring user privacy. Emphasizing security without sacrificing usability, it offers ephemeral messaging through peer-to-peer connections. This paper introduces One Time Chat, a toy web app detailing its cryptographic foundations, key authentication, and user experience. With its open-source nature and publicly available deployment, One Time Chat not only serves as a messaging service but also as a basis for future secure communication tools.