๐
Original date posted:2019-07-23
๐ Original message:Hello All,
I have made a pull request based on the discussion currently. Please move
discussion there.
https://github.com/bitcoin/bips/pull/801
Thanks,
Jonathan
2019ๅนด6ๆ29ๆฅ(ๅ) 17:11 Jonathan Underwood <junderwood at bitcoinbank.co.jp>:
> Even if the difference is apparent outside the signed data (in the
> output). Signing the data explicitly is more secure.
>
> ie. if some sort of vulnerability / way to break this system for 1-of-1
> multisig is found, someone who signed a single sig xpub whitelist will not
> be exposed.
>
> 2019ๅนด6ๆ29ๆฅ(ๅ) 13:43 Dmitry Petukhov <dp at simplexum.com>:
>
>> ะ Sat, 29 Jun 2019 09:19:41 +0900
>> Jonathan Underwood <junderwood at bitcoinbank.co.jp> ะฟะธัะตั:
>>
>> > > Other note: you have 'unused' value of 1 for `m` in your scheme, why
>> > > not require m=1 for single-sig case, and use 0 as indicator that
>> > > there are a serlal number following it?
>> > >
>> >
>> > 0x00 is single sig, aka, OP_CHECKSIG
>> >
>> > 0x01 is multisig, aka, 1-of-3, 1-of-2 OP_CHECKMULTISIG
>>
>> This informatin is available in per-output redeem/witness script,
>> signer will be able to distinguish between multisig/single-sig by
>> looking at this script. I think it only need to know the total number
>> of keys participating in the signing, and check that this number
>> matches the particulars of redeem/witness script.
>>
>
>
--
-----------------
Jonathan Underwood
ใใใใใณใฏ็คพ ใใผใใใใใณใคใณใชใใฃใตใผ
-----------------
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ฌ้้ตใใๅฉ็จไธใใใ
ๆ็ด: 0xCE5EA9476DE7D3E45EBC3FDAD998682F3590FEA3
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Jonathan Underwood [ARCHIVE] /
npub1axโฆ0ftr0
2023-06-07 18:19:40
in reply to nevent1qโฆ789m
Author Public Key
npub1axv7m5dyyrnatcvmu7rse0860x9mnr95prje9x32rqvperr0rhhqp0ftr0Published at
2023-06-07 18:19:40Event JSON
{
"id": "94493fe0e3f1a8f97d3391a7dae1c0fdc767a9204feaa1adbb6f77b18fbcfc52",
"pubkey": "e999edd1a420e7d5e19be7870cbcfa798bb98cb408e5929a2a18181c8c6f1dee",
"created_at": 1686161980,
"kind": 1,
"tags": [
[
"e",
"f217d863d10b04d18330301c08cda97fd708e37305dc3337fe8b161296ea40d3",
"",
"reply"
],
[
"p",
"a23dbf6c6cc83e14cc3df4e56cc71845f611908084cfe620e83e40c06ccdd3d0"
]
],
"content": "๐
Original date posted:2019-07-23\n๐ Original message:Hello All,\n\nI have made a pull request based on the discussion currently. Please move\ndiscussion there.\n\nhttps://github.com/bitcoin/bips/pull/801\n\nThanks,\nJonathan\n\n2019ๅนด6ๆ29ๆฅ(ๅ) 17:11 Jonathan Underwood \u003cjunderwood at bitcoinbank.co.jp\u003e:\n\n\u003e Even if the difference is apparent outside the signed data (in the\n\u003e output). Signing the data explicitly is more secure.\n\u003e\n\u003e ie. if some sort of vulnerability / way to break this system for 1-of-1\n\u003e multisig is found, someone who signed a single sig xpub whitelist will not\n\u003e be exposed.\n\u003e\n\u003e 2019ๅนด6ๆ29ๆฅ(ๅ) 13:43 Dmitry Petukhov \u003cdp at simplexum.com\u003e:\n\u003e\n\u003e\u003e ะ Sat, 29 Jun 2019 09:19:41 +0900\n\u003e\u003e Jonathan Underwood \u003cjunderwood at bitcoinbank.co.jp\u003e ะฟะธัะตั:\n\u003e\u003e\n\u003e\u003e \u003e \u003e Other note: you have 'unused' value of 1 for `m` in your scheme, why\n\u003e\u003e \u003e \u003e not require m=1 for single-sig case, and use 0 as indicator that\n\u003e\u003e \u003e \u003e there are a serlal number following it?\n\u003e\u003e \u003e \u003e\n\u003e\u003e \u003e\n\u003e\u003e \u003e 0x00 is single sig, aka, OP_CHECKSIG\n\u003e\u003e \u003e\n\u003e\u003e \u003e 0x01 is multisig, aka, 1-of-3, 1-of-2 OP_CHECKMULTISIG\n\u003e\u003e\n\u003e\u003e This informatin is available in per-output redeem/witness script,\n\u003e\u003e signer will be able to distinguish between multisig/single-sig by\n\u003e\u003e looking at this script. I think it only need to know the total number\n\u003e\u003e of keys participating in the signing, and check that this number\n\u003e\u003e matches the particulars of redeem/witness script.\n\u003e\u003e\n\u003e\n\u003e\n\n-- \n-----------------\nJonathan Underwood\nใใใใใณใฏ็คพ ใใผใใใใใณใคใณใชใใฃใตใผ\n-----------------\n\nๆๅทๅใใใกใใปใผใธใใ้ใใฎๆนใฏไธ่จใฎๅ
ฌ้้ตใใๅฉ็จไธใใใ\n\nๆ็ด: 0xCE5EA9476DE7D3E45EBC3FDAD998682F3590FEA3\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20190723/3a6f2496/attachment-0001.html\u003e",
"sig": "80ca4bafedbfe6cb9304ba7ec642b9df2a9ef87ec889d90af214a923ae1b144f2a5481ddff3572010d6813aea076536e4499d18a3969bd8292beef19e3b79fd0"
}