[webauthn] new commits pushed by emlun

The following commits were just pushed by emlun to https://github.com/w3c/webauthn:

* Fix #848: Weirdness in RP UP verification

§7.1. Registering a new credential currently reads (and §7.2. Verifying
an authentication assertion is analogous):

>10. If user verification is required for this registration, verify that
the User Verified bit of the `flags` in _authData_ is set.
>11. If user verification is not required for this registration, verify
that the User Present bit of the `flags` in _authData_ is set.

This results in the following truth table:

    UV req.     | UP req? | UV res. | UP res. | Accept?
    ------------+---------+---------+---------+--------
    discouraged | Yes     | 0       | 0       | No
    discouraged | Yes     | 0       | 1       | Yes
    discouraged | Yes     | 1       | 0       | No
    discouraged | Yes     | 1       | 1       | Yes
    preferred   | Yes     | 0       | 0       | No
    preferred   | Yes     | 0       | 1       | Yes
    preferred   | Yes     | 1       | 0       | No
    preferred   | Yes     | 1       | 1       | Yes
    required    | No      | 0       | 0       | No
    required    | No      | 0       | 1       | No
    required    | No      | 1       | 0       | Yes
    required    | No      | 1       | 1       | Yes

Note, for example, how UV `preferred` means that a response with `(UV=1,
UP=0)` should be rejected.

It makes more sense to let the UP requirement be defined by the UV
_response_ instead of the UV _requirement_:

    UV req.     | UV res. | UP req? | UP res. | Accept?
    ------------+---------+---------+---------+--------
    discouraged | 0       | Yes     | 0       | No
    discouraged | 0       | Yes     | 1       | Yes
    discouraged | 1       | No      | 0       | Yes
    discouraged | 1       | No      | 1       | Yes
    preferred   | 0       | Yes     | 0       | No
    preferred   | 0       | Yes     | 1       | Yes
    preferred   | 1       | No      | 0       | Yes
    preferred   | 1       | No      | 1       | Yes
    required    | 0       | Yes     | 0       | No
    required    | 0       | Yes     | 1       | No
    required    | 1       | No      | 0       | Yes
    required    | 1       | No      | 1       | Yes
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/5b026ad5fcab52b853995a8ca8f4959bd9f9c0b7

* Add note about verifying U2F assertion signatures
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/632041ccf34edc39cdeb02a9ef71c8de135c2748

* Add missing description of PublicKeyCredentialDescriptor.transports
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/e2c1243cee3a851df2c3556b94bf1ae559e4b073

* Fix reference to U2F user public key format
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/68d8cb8a673ed46f0d4fc5b11a97a528b44e76a3

* Improve U2F key reformatting instructions as suggested by @apowers

See https://github.com/w3c/webauthn/issues/857
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/c137565f1d042c5a65606e36d543daf9d7642643

* Always verify UP bit in RP ops

As pointed out by @akshayku, recent drafts of CTAP now support this.
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/a46247182ccbda508a619f27d4437649a30004a3

* Fix grammar
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/f234d4abea7ac5b1d0fe5bc4128706c737b15f14

* Merge branch 'master' into issue-848-rp-up-verification
  by JeffH
https://github.com/w3c/webauthn/commit/2ae16c671edfbce5dc6ec020deae706a13d751c9

* Fix |authData| -> |aData|
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/2dabcf8ac7a5734504443148697c69c86697a799

* Address @equalsJeffH's review comments
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/425afcdab84fdd99867cbc6323b5b7668bec069f

* Clarify that authentication use case example requires pairing the phone first
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/e36ee7c6959fd2623ff146fb1dbb77a909469e85

* Extract cross-spec ref for RFC8152 Secion 7
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/0bc2eece80bfc942215e2de400f35c074b66c0c4

* Extract cross-spec ref for FIDO-U2F-Message-Formats Secion 4.3
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/b05010da756d2deffd507044d289b33a1085d02e

* Extract section 6.1.2. FIDO U2F signature format compatibility
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/88bb9aec22147152535c012cf686d378ddb72a52

* non- -> non-null (#890)
  by =JeffH
https://github.com/w3c/webauthn/commit/c880ab937f69bc5cad48d3dd784068f760e959b8

* Address @equalsJeffH's review comment
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/f4575a0a6001e4e58da692d91ca289c94a8cc109

* Merge pull request #881 from w3c/issue-874-clarify-use-case

Clarify that authentication use case example requires pairing the phone first
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/aabeeaf52debdad98bbedc8ff9efed4e96d37451

* Merge branch 'master' into issue-857-u2f-attestation-verification
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/3afbcf955b357e7f0e5208b0b01436ee36ae35fd

* Merge pull request #861 from w3c/issue-857-u2f-attestation-verification

Clarify U2F attestation verification instructions
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/848659eb2d3c115ad22883eb2dd70c0413de9639

* Merge branch 'master' into issue-845-u2f-signature
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/f3940003f8e43e7c9c43889592d21f416a580a46

* Merge pull request #850 from w3c/issue-845-u2f-signature

Add note about verifying U2F assertion signatures
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/da1d21d5da190d8fc2ae3b880c31875675106b4e

* Merge pull request #849 from w3c/issue-848-rp-up-verification

Fix #848: Weirdness in RP UP verification
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/c22b1ac49d3cbb4ba1902272ae5470bc2292ea55

* Merge pull request #860 from w3c/issue-852-transports-description

Add missing description of PublicKeyCredentialDescriptor.transports
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/864bc4fe0fecc9529d5a35918d3549fb1446a6e7

* Merge branch 'master' into issue-151-credential-portability
  by Emil Lundberg
https://github.com/w3c/webauthn/commit/797155e9063232cc73276c0f392dbb37aaae8c0a

Received on Wednesday, 2 May 2018 12:04:46 UTC