btcec/ecdsa: add VerifyLowS helper function#2475
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EricGrill wants to merge 1 commit intobtcsuite:masterfrom
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btcec/ecdsa: add VerifyLowS helper function#2475EricGrill wants to merge 1 commit intobtcsuite:masterfrom
EricGrill wants to merge 1 commit intobtcsuite:masterfrom
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Add VerifyLowS function to check if a signature's S component is in the "low" range as required by BIP-62. A canonical signature requires S <= N/2 where N is the secp256k1 curve order. This is useful for Lightning Network and other protocols that require canonical signatures to prevent transaction malleability. Closes btcsuite#2462 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Please stop opening duplicate PRs. If you want to contribute to the project, the best way to do that is to review PRs and help with issue triage. Eg: there's a PR for this already: #2463 |
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Closing as duplicate of #2463. Thank you for pointing this out - I'll contribute through PR reviews and issue triage instead. |
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Summary
VerifyLowSfunction to check if a signature's S component is in the "low" rangeTest plan
Closes #2462
🤖 Generated with Claude Code