Develop a Secure Payment Terminal with Zero-Knowledge ProofsDevelop a Secure Payment Terminal with Zero-Knowledge Proofs
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Built a privacy-focused embedded payment terminal for small merchants in Nigeria using C and SDL2. Features zero-knowledge proofs on the Midnight Network, real-time QR code generation, and a multithreaded state machine with 8 screen flows. Connected to a Node.js backend via raw TCP sockets
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The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started