websecurityhackathon
Givvy
AES-encrypted NFC e-ink gift cards, with web and point-of-sale apps. A Hack Dearborn 2025 winner.
The Problem
Physical gift cards need a secure digital experience for both the person receiving them and the merchant accepting them.
The Solution
Built an AES-encrypted NFC e-ink gift card platform using TypeScript and Supabase, with companion web and point-of-sale applications.
Impact & Results
Won at Hack Dearborn 2025 among 240+ participants in Amazon's Financial Firewall track.
Hack Dearborn 2025 winner
240+ participants
Encrypted NFC gift cards
Web and POS applications
Tech Stack
TypeScriptSupabaseAES EncryptionNFCE-ink
Links