Privacy-Friendly Monero Transaction Signing on a Hardware Wallet
| Authors | |
|---|---|
| Year of publication | 2020 |
| Type | Article in Proceedings |
| Conference | ICT Systems Security and Privacy Protection |
| MU Faculty or unit | |
| Citation | |
| Web | https://link.springer.com/chapter/10.1007%2F978-3-030-58201-2_23 |
| Doi | http://dx.doi.org/10.1007/978-3-030-58201-2_23 |
| Keywords | Monero Transaction signing Bulletproofs Zero-knowledge system Multi-party computation Hardware wallets |
| Description | 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. |
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