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Ran 22 May 2026 12:25PM UTC

Files 173

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Committed 22 May 2026 11:00AM UTC coverage: 76.682% (+0.04%) from 76.643%

Job # 26283934294.1

Build Type

push

github

Committed by

MagicalTux

Commit Message

Merge frosttss-hd-derivation: non-hardened HD on Ed25519

Adds Option A HD derivation to frosttss: per-key ChainCode set at keygen
(deterministic function of GroupPublicKey), DeriveChild / DeriveAndSign
for non-hardened paths, NewSigningWithTweak that absorbs a tweak into
signer-0's lambda*s mul-add. Existing API is preserved end-to-end —
NewSigning delegates to NewSigningWithTweak(nil), legacy Keys without
ChainCode still pass ValidateBasic, ImportKey populates ChainCode.

Signatures verify under (parent_pub + tweak*G) via any standard Ed25519
verifier. Tests pass under -race.

Coverage Stats

16758 of 21854 relevant lines covered (76.68%)

127021.31 hits per line

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master: 77%

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Source Files on job 26283934294.1

KarpelesLab / tss-lib / 26283934294 / 1
77%
master: 77%

README BADGES
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