Building a Privacy-First URL Shortener on Blockchain
Описание и применение
Автор создал Cryptly — URL-сокращатель, ориентированный на конфиденциальность, используя блокчейн Cronos и клиентское шифрование. Это предотвращает отслеживание со стороны сервера и устраняет риски взлома централизованных баз данных.
Задача
Traditional URL shorteners log user IPs, timestamps, user agents, and destination URLs, track browsing patterns, sell data to advertisers, and maintain centralized databases that are vulnerable to hacking.
Результат
A privacy-first URL shortener that prevents server-side tracking, eliminates centralized database risks, and offers censorship resistance through blockchain storage and client-side encryption.
Рабочий процесс
- Client-side encryption of the destination URL using AES-GCM via Web Crypto API.
- Storage of the encrypted URL on the Cronos blockchain.
- Browser fetches the encrypted data from the blockchain.
- Local decryption of the URL in the browser using Web Crypto API.
- Redirection to the destination URL without server-side visibility.
Доказательства
Server never sees destination URLs
No database to leak
- Дата записи: 2026-09-08T16:02:52.052Z