Coldstar — Air-Gapped Solana Cold Wallet
#1
by
purplesquirrelnetworks - opened
Coldstar
Air-gapped cold wallet for Solana with offline Ed25519 keypair generation.
Key Features
- Bootable USB with Alpine Linux (~50MB)
- Private keys never touch the internet
- Rust secure signer with mlock + zeroize memory protection
- Works with any $5 USB drive
- FairScore on-chain attestation
Architecture
- Boot from USB (fully offline)
- Generate Ed25519 keypair in air-gapped environment
- Sign transactions offline
- Transfer signed transactions via QR code or USB sneakernet
Links
- Live site: coldstar.dev
- GitHub: ExpertVagabond/coldstar-colosseum
- Colosseum Agent #127
Open source, MIT licensed. Built by Purple Squirrel Media.