📅 Original date posted:2018-07-19
📝 Original message:On Thu, Jul 19, 2018 at 8:16 AM, Erik Aronesty via bitcoin-dev <
bitcoin-dev at lists.linuxfoundation.org> wrote:
> you can't birthday attack something where there's only a single variable
> that you can modify.
>
When engaging in a multiparty signature, the attacker can more than one
variable to modify. When you are party to a multi-party signature (for
example, in some sort of coin-join protocol) it could be that every other
participant in the multi-party signature is, in fact, the same single
attacker representing themselves as multiple participants. This is how the
attacker gets their hands on multiple variables.
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Russell O'Connor [ARCHIVE] /
npub1dw…8plrw
2023-06-07 18:13:45
in reply to nevent1q…7nu9
Author Public Key
npub1dw88wd5gqsqn6ufxhf9h03uk8087l7gfzdtez5csjlt6pupu4pwsj8plrwPublished at
2023-06-07 18:13:45Event JSON
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"pubkey": "6b8e77368804013d7126ba4b77c7963bcfeff909135791531097d7a0f03ca85d",
"created_at": 1686161625,
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"content": "📅 Original date posted:2018-07-19\n📝 Original message:On Thu, Jul 19, 2018 at 8:16 AM, Erik Aronesty via bitcoin-dev \u003c\nbitcoin-dev at lists.linuxfoundation.org\u003e wrote:\n\n\u003e you can't birthday attack something where there's only a single variable\n\u003e that you can modify.\n\u003e\n\nWhen engaging in a multiparty signature, the attacker can more than one\nvariable to modify. When you are party to a multi-party signature (for\nexample, in some sort of coin-join protocol) it could be that every other\nparticipant in the multi-party signature is, in fact, the same single\nattacker representing themselves as multiple participants. This is how the\nattacker gets their hands on multiple variables.\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20180719/70bd09ca/attachment-0001.html\u003e",
"sig": "4b525a4237f7bad2bcb0be51877b80422e5220b89db7cbc6ba81f536e5dc87ba422f2d6ed861b89ff4697d85631337fb1e86e1e94a370ab5f9a8ad7a822c3b08"
}