cryptX

A reverse-engineered hardware wallet for Solana: PIN, BIP-39 seeds, physical approval, AI fraud detection — without the $150 price tag.

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How it works

USB to signed transaction on-chain.

1

Connect over USB

Web Serial to the Arduino. No bridge.

2

Device authenticates

SipHash challenge-response each session.

3

Physical approval

LCD + buttons confirm or reject.

4

Signed payload relayed

Bytes go to Solana; seed stays on device.