Overview
Criptphy is a password manager prototype we built in 2022 for a civic-tech challenge promoted by Ideias de Futuro, in partnership with the São Paulo government and Google. The goal was to create a tech solution that could help people in the city—so we focused on a very real, very common problem:
A lot of people reuse the same password across multiple accounts because it’s easy… until it isn’t.
Criptphy was our attempt to turn that pain point into a practical solution: a simple web app concept for securely storing and organizing passwords.
I explain in more detail how we arrived at this idea in this post: Rebuilding after the pandemic — Part 1
My role
This was a two-person team project:
- Me: Front-end (UI, layout, interaction, integration with the API);
- My teammate: Back-end (server-side logic, database, endpoints).
Tech stack
- Front-end: HTML, CSS, TypeScript;
- Back-end: PHP;
- Database: MySQL.
Architecture (high level)
Criptphy followed a straightforward split:
- A static front-end (TypeScript compiled for the browser using Vite) responsible for the user experience
- A PHP back-end that handled data persistence and communication with MySQL
- The front-end interacted with the back-end through HTTP requests (API-style integration)
Hosting (at the time)
During the event, we deployed the prototype like this:
- Front-end: Heroku;
- Back-end: Railway.
Current status
Criptphy is no longer online and not actively maintained.
That said, the full source code is still available and can be explored on GitHub.
Outcome
We were selected to present Criptphy in-person at the Ideias de Futuro center, in front of judges, journalists, and representatives from the government.
At the end of the event:
- Criptphy won 2nd place in the Development category;
- We received a Kindle as a prize.
Media
Landing Page: Hero section.
Landing Page: About section.