Welcome to the resource topic for 2020/281
Title:
Privacy-friendly Monero transaction signing on a hardware wallet, extended version
Authors: Dusan Klinec Vashek Matyas
Abstract:Keeping cryptocurrency spending keys safe and being able to use them when signing a transaction is a well-known problem, addressed by hardware wallets. Our work focuses on a transaction signing process for privacy-centric cryptocurrency Monero, in the hardware wallets. We designed, implemented, and analyzed a privacy-preserving transaction signing protocol that runs on a hardware wallet and protects the spending keys. Moreover, we also implemented a privacy-preserving multi-party version of the Bulletproof zero-knowledge prover algorithm, which runs on a hardware wallet with constant memory. We present the protocols and evaluate their performance on a real hardware wallet.
ePrint: https://eprint.iacr.org/2020/281
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