Author: Erik Aronesty 2018-07-19 12:24:39
Published on: 2018-07-19T12:24:39+00:00
The context describes a discussion between individuals regarding the security of a bitcoin private key. The conversation revolves around the idea of a secure multiparty computation (SMC) of a signature being more secure overall than other methods. However, there is some uncertainty about how to do it offline and all parties need to agree on the blinding factor. The conversation then shifts towards the applicability of Wagner's algorithm in this scenario. It is mentioned that adaptively chosen public keys can be dangerous and easily exploited, but using hash(pub) as X prevents this attack. Ultimately, the discussion centers around the security of Shamir secret sharing interpolation and how it prevents attacks on the multisig construction.
Updated on: 2023-06-13T03:52:48.488092+00:00