đź“… Original date posted:2017-02-26
đź“ť Original message:> On Feb 26, 2017, at 12:36 AM, Pieter Wuille <pieter.wuille at gmail.com> wrote:
>
> The 80-bit collision attack only applies to jointly constructed addresses like multisig P2SH, not single-key ones.
That’s the part I’m less convinced about, and why I asked the original question re SHA1 vs RIPEMD.
I’m checking my own numbers (and as you’ll appreciate it’s a powers of ten thing), but I do see a vector. Which would mean that if RIPEMD were weakened in any way, single-key transactions could suddenly become badly exposed.
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Steve Davis [ARCHIVE] /
npub1nf…gkps5
2023-06-07 17:56:47
in reply to nevent1q…mykm
Author Public Key
npub1nf4hx3yuahf4awyzsdfzh6gelr8ef4d8yqeker5y8sku64k48c7qcgkps5Published at
2023-06-07 17:56:47Event JSON
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"pubkey": "9a6b73449cedd35eb88283522be919f8cf94d5a720336c8e843c2dcd56d53e3c",
"created_at": 1686160607,
"kind": 1,
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"content": "📅 Original date posted:2017-02-26\n📝 Original message:\u003e On Feb 26, 2017, at 12:36 AM, Pieter Wuille \u003cpieter.wuille at gmail.com\u003e wrote:\n\u003e \n\u003e The 80-bit collision attack only applies to jointly constructed addresses like multisig P2SH, not single-key ones.\n\nThat’s the part I’m less convinced about, and why I asked the original question re SHA1 vs RIPEMD. \n\nI’m checking my own numbers (and as you’ll appreciate it’s a powers of ten thing), but I do see a vector. Which would mean that if RIPEMD were weakened in any way, single-key transactions could suddenly become badly exposed.\n\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20170226/9aeaf1d0/attachment.html\u003e",
"sig": "a63bfc47cf89efd63e85f5fb63becceaade3f28a278b3a2699fe6df1bd7a3d8a53f0166d0b9ef65a565f9b22bcf07df312f66fcc4b0c0e44e4bdfca19db3e7d8"
}