Privacy-Friendly Monero Transaction Signing on a Hardware Wallet - ICT Systems Security and Privacy Protection
Conference Papers Year : 2020

Privacy-Friendly Monero Transaction Signing on a Hardware Wallet

Dusan Klinec
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Vashek Matyas
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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.
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Dates and versions

hal-03440818 , version 1 (22-11-2021)

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Dusan Klinec, Vashek Matyas. Privacy-Friendly Monero Transaction Signing on a Hardware Wallet. 35th IFIP International Conference on ICT Systems Security and Privacy Protection (SEC), Sep 2020, Maribor, Slovenia. pp.338-351, ⟨10.1007/978-3-030-58201-2_23⟩. ⟨hal-03440818⟩
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