commit 8c97189a71e37a7292b5a543333af65341cc3457
author Martin Kreichgauer <martinkr@google.com> Mon Jan 10 20:31:43 2022
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Mon Jan 10 20:31:43 2022
tree 62a18b9e659d082d29503dbf0fd139f524797308
parent ba7ecff635bde947ca500fb93d418995e11e71c7

extensions: add WebAuthn registration proxying to webAuthenticationProxy

This adds an onCreateRequest event and completeCreateRequest method to
the webAuthenticationProxy extensions API.

While running with an attached webAuthenticationProxy extension,
WebAuthn navigator.credentials.create() calls raise a onCreateRequest
event to that extension. The event contains a JSON-serialized
representation of the PublicKeyCredentialCreationOptions passed to the
WebAuthn API call.

The extension calls completeCreateRequest() to inject a JSON-serialized
representation of the PublicKeyCredential, which Chrome returns to the
calling site.

For JSON serialization, all ArrayBuffer-valued fields are replaced with
base64url-encoded DOMStrings. We plan to provide compatible counterpart
parsing/serilization methods as part of WebAuthn.

Bug: 1231802
Change-Id: If727a98154bf3d72bc77d4ef1edcc834a47709f3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3311658
Reviewed-by: Devlin Cronin <rdevlin.cronin@chromium.org>
Reviewed-by: Adam Langley <agl@chromium.org>
Reviewed-by: Charles Reis <creis@chromium.org>
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Auto-Submit: Martin Kreichgauer <martinkr@google.com>
Cr-Commit-Position: refs/heads/main@{#957177}