feat(webauthn): WebAuthn Client + previewSign extension (Phase 9 close)#466

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DennisDyallo wants to merge 116 commits intoyubikit-appletsfrom

webauthn/phase-9.2-rust-port

Commits on Apr 22, 2026

Commits on Apr 23, 2026

docs(webauthn): land Phase 9 plan + libfido2/android parity reports + handoff

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docs(webauthn): pivot Phase 9.2 to path 2A — Rust upstream is hardware-proven

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test(webauthn): add byte-level CBOR encoding tests for previewSign authentication

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refactor(webauthn): update multi-credential NotSupported message to reference Phase 10

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fix(webauthn): enable previewSign auth test with non-ARKG algorithms

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test(webauthn): drop validation-only previewSign test per repo test-philosophy

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test(webauthn): re-skip previewSign auth integration test — ARKG is gating prerequisite

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test(webauthn): use [SkippableTheory] so xunit.SkippableFact catches Skip.If

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docs(webauthn): record Phase 9.3 hardware verification results

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docs(fido2): file Phase 9.4 tracker for canonical extension coverage polish

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docs(webauthn): handoff for Phase 9 close + PR #466

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test(fido2): add canonical previewSign registration and PIN error tests

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feat(fido2): add PreviewSignExtension types and encoder

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feat(fido2): add WithPreviewSign builder methods

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refactor(webauthn): delegate previewSign encoding to Fido2

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test(fido2): migrate previewSign tests to canonical Fido2 layer

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docs(fido2,webauthn): update CLAUDE.md with architectural truth

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refactor(webauthn): eliminate DRY in attestation-object encoding

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refactor(webauthn): route PreviewSignAdapter through ExtensionBuilder

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docs(webauthn): handoff capturing architectural cleanup phases 9.5/9.5b/9.5c

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refactor(tests): add cancellation token to MakeCredentialStreamAsync calls
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test(fido2): add Phase 9.4 extension coverage tests

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docs(fido2): mark Phase 9.4 done + file Phase 9.6 credBlob validation tracker

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docs(webauthn): final session handoff — Phase 9.4 shipped, Phase 9.6 filed

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Commits on Apr 24, 2026

Commits on Apr 27, 2026