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Initial prototype: passkey PRF → HKDF → Nostr key

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Full pipeline proving a WebAuthn PRF assertion can anchor a stable
Nostr keypair. Core derivation in nostr_passkey/derivation.py (pure,
unit-tested), WebAuthn ceremony glue in webauthn_flow.py, FastAPI
surface in app.py, single-page WebAuthn client in web/index.html, and
an end-to-end simulation in scripts/demo.py for running without a real
authenticator.

Verified working against Firefox 149 + macOS Touch ID over HTTPS on
https://localhost:8000 with a self-signed loopback cert.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Michael Schapira
2026-04-10 23:12:27 -04:00
commit 5f35195e72
10 changed files with 1404 additions and 0 deletions
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nostr_passkey/__init__.py Normal file
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"""Passkey-anchored Nostr key derivation prototype."""
from .derivation import NostrIdentity, derive_nostr_key
__all__ = ["NostrIdentity", "derive_nostr_key"]