📅 Original date posted:2014-07-18
📝 Original message:On Fri, Jul 18, 2014 at 5:14 PM, Pieter Wuille <pieter.wuille at gmail.com> wrote:
> Hi all,
>
> I've sent a pull request to make a small change to BIP 62 (my
> anti-malleability proposal) which is still a draft; see:
> * https://github.com/bitcoin/bips/pull/90 (the request)
> * https://github.com/sipa/bips/blob/bip62up/bip-0062.mediawiki (the result)
>
> It makes two of the 7 new rules mandatory in new blocks, even for
> old-style transactions. Both are already non-standard since 0.8.0, and
> have no use cases in my opinion.
Looks good to me.
> The reason for this change is dropping the requirement for signature
> verification engines to be bug-for-bug compatible with OpenSSL (which
> supports many non-standard encodings for signatures). Requiring strict
> DER compliance for signatures means any implementation just needs to
> support DER.
This is certainly a good thing. Not even OpenSSL is guaranteed to be
bug-for-bug compatible with its own prior versions forever, so better
to strictly define what is allowed.
Wladimir
Wladimir [ARCHIVE] /
npub1xq…ymc2p
2023-06-07 15:24:16
in reply to nevent1q…nv3h
Author Public Key
npub1xqshkqv2g7uea4xzqwvmgjcz7u8vfavw6aazs999v0azsv3w7u3qpymc2pPublished at
2023-06-07 15:24:16Event JSON
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"pubkey": "30217b018a47b99ed4c20399b44b02f70ec4f58ed77a2814a563fa28322ef722",
"created_at": 1686151456,
"kind": 1,
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"content": "📅 Original date posted:2014-07-18\n📝 Original message:On Fri, Jul 18, 2014 at 5:14 PM, Pieter Wuille \u003cpieter.wuille at gmail.com\u003e wrote:\n\u003e Hi all,\n\u003e\n\u003e I've sent a pull request to make a small change to BIP 62 (my\n\u003e anti-malleability proposal) which is still a draft; see:\n\u003e * https://github.com/bitcoin/bips/pull/90 (the request)\n\u003e * https://github.com/sipa/bips/blob/bip62up/bip-0062.mediawiki (the result)\n\u003e\n\u003e It makes two of the 7 new rules mandatory in new blocks, even for\n\u003e old-style transactions. Both are already non-standard since 0.8.0, and\n\u003e have no use cases in my opinion.\n\nLooks good to me.\n\n\u003e The reason for this change is dropping the requirement for signature\n\u003e verification engines to be bug-for-bug compatible with OpenSSL (which\n\u003e supports many non-standard encodings for signatures). Requiring strict\n\u003e DER compliance for signatures means any implementation just needs to\n\u003e support DER.\n\nThis is certainly a good thing. Not even OpenSSL is guaranteed to be\nbug-for-bug compatible with its own prior versions forever, so better\nto strictly define what is allowed.\n\nWladimir",
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