mats
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The remaining P3 tail is done: - §13.5: three TOTP codes for the shared RFC secret computed by an independent implementation (Python stdlib, anchored to RFC 4226 App D counter 0 = 755224) at recorded wall-clock Unix seconds, pinned in platform/auth TestInteropCapturePythonTOTP — the Go code must produce identical codes at the same instants and VerifyWindow(0) must accept each at its capture time (cross-implementation agreement). - §14.4: a full WebAuthn ceremony through real Chrome (navigator.credentials with a CDP virtual authenticator: ctap2/internal, resident key, UV, ES256) against a live go-auth instance — registration + passwordless login both completed via the RP handlers. The raw browser-produced blobs (clientDataJSON, attestationObject, authenticatorData, signature) are stored verbatim as a golden fixture and replayed by TestInteropCaptureChromeRegistration/Assertion: the parser must decode the real CBOR/COSE/authenticator-data, and the real ECDSA signature must verify over SHA-256(authData ‖ clientDataJSON) with the parsed key. Plan doc §13.5/§14.4 updated with the recorded values; P3 row marked complete. Both new suites green. 🤖 Generated with Codebuff Co-Authored-By: Codebuff <noreply@codebuff.com>