David A. Harding [ARCHIVE] on Nostr: 📅 Original date posted:2021-09-05 📝 Original message:On Fri, Sep 03, 2021 at ...

📅 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>;