📅 Original date posted:2021-09-05
📝 Original message:On Fri, Sep 03, 2021 at 08:32:19PM -0700, Jeremy via bitcoin-dev wrote:
> Hi Bitcoin Devs,
>
> I recently noticed a flaw in the Sequence lock implementation with respect
> to upgradability. It might be the case that this is protected against by
> some transaction level policy (didn't see any in policy.cpp, but if not,
> I've put up a blogpost explaining the defect and patching it
> https://rubin.io/bitcoin/2021/09/03/upgradable-nops-flaw/
Isn't this why BIP68 requires using tx.version=2? Wouldn't we just
deploy any new nSequence rules with tx.version>2?
-Dave
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20210905/2f55d419/attachment.sig>;
David A. Harding [ARCHIVE] /
npub16d…x4wrd
2023-06-07 22:58:40
in reply to nevent1q…vdhq
Author Public Key
npub16dt55fpq3a8r6zpphd9xngxr46zzqs75gna9cj5vf8pknyv2d7equx4wrdPublished at
2023-06-07 22:58:40Event JSON
{
"id": "ecb5468237d35e9b97ab8132f7ffb66dcbcc8e0e4c472dc599dc84e77a4ba4cd",
"pubkey": "d3574a24208f4e3d0821bb4a69a0c3ae842043d444fa5c4a8c49c369918a6fb2",
"created_at": 1686178720,
"kind": 1,
"tags": [
[
"e",
"0b66fdf253c9d00b470060371614369207e2299bb29c0401157c7fcce2572158",
"",
"root"
],
[
"e",
"c4490256aa803dce7de492a68dba7a8c6ba6f781ff5f4e9a7880178eed276409",
"",
"reply"
],
[
"p",
"01f53a3166b3b23139201763777e070fcfed5555ad7555f7e90114c0c9e0e8b4"
]
],
"content": "📅 Original date posted:2021-09-05\n📝 Original message:On Fri, Sep 03, 2021 at 08:32:19PM -0700, Jeremy via bitcoin-dev wrote:\n\u003e Hi Bitcoin Devs,\n\u003e \n\u003e I recently noticed a flaw in the Sequence lock implementation with respect\n\u003e to upgradability. It might be the case that this is protected against by\n\u003e some transaction level policy (didn't see any in policy.cpp, but if not,\n\u003e I've put up a blogpost explaining the defect and patching it\n\u003e https://rubin.io/bitcoin/2021/09/03/upgradable-nops-flaw/\n\nIsn't this why BIP68 requires using tx.version=2? Wouldn't we just\ndeploy any new nSequence rules with tx.version\u003e2?\n\n-Dave\n-------------- next part --------------\nA non-text attachment was scrubbed...\nName: signature.asc\nType: application/pgp-signature\nSize: 833 bytes\nDesc: not available\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20210905/2f55d419/attachment.sig\u003e",
"sig": "2546e43a2f3af32babcdd9a1f4f7923db739399cc7fe456680a1d9cc0378137ece4b9b864a4d65ac89108d8599bc520a49a26cb6dcff4d2066e693f138f30b23"
}