Fintech securitySTM32 · C

Cryptocurrency hardware wallet

A secure hardware wallet integrating multiple top cryptocurrencies, with address generation, key derivation, and transaction signing written in C straight from the protocol white papers — hardened against tampering and encrypted end-to-end to its desktop companion app.

Because private keys never leave the device, every line of the signing path was written and reviewed against the source protocol specs rather than a third-party library, with the desktop companion app treated as untrusted until a signature came back verified.

Key managementE2E encryptionSTM32F4Node.js app

Drop photo at
images/crypto-wallet-1.jpg Cryptocurrency hardware wallet — photo 1

Drop photo at
images/crypto-wallet-2.jpg Cryptocurrency hardware wallet — photo 2

Drop photo at
images/crypto-wallet-3.jpg Cryptocurrency hardware wallet — photo 3

Drop photo at
images/crypto-wallet-4.jpg Cryptocurrency hardware wallet — photo 4

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