|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
/* |
|
6
|
|
|
* The MIT License (MIT) |
|
7
|
|
|
* |
|
8
|
|
|
* Copyright (c) 2014-2018 Spomky-Labs |
|
9
|
|
|
* |
|
10
|
|
|
* This software may be modified and distributed under the terms |
|
11
|
|
|
* of the MIT license. See the LICENSE file for details. |
|
12
|
|
|
*/ |
|
13
|
|
|
|
|
14
|
|
|
namespace U2FAuthentication\Fido2; |
|
15
|
|
|
|
|
16
|
|
|
use Assert\Assertion; |
|
17
|
|
|
use U2FAuthentication\Fido2\AttestationStatement\AttestationStatementSupportManager; |
|
18
|
|
|
|
|
19
|
|
|
class AuthenticatorAttestationResponseValidator |
|
20
|
|
|
{ |
|
21
|
|
|
private $attestationStatementSupportManager; |
|
22
|
|
|
private $credentialRepository; |
|
23
|
|
|
|
|
24
|
|
|
public function __construct(AttestationStatementSupportManager $attestationStatementSupportManager, CredentialRepository $credentialRepository) |
|
25
|
|
|
{ |
|
26
|
|
|
$this->attestationStatementSupportManager = $attestationStatementSupportManager; |
|
27
|
|
|
$this->credentialRepository = $credentialRepository; |
|
28
|
|
|
} |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* @see https://www.w3.org/TR/webauthn/#registering-a-new-credential |
|
32
|
|
|
*/ |
|
33
|
|
|
public function check(AuthenticatorAttestationResponse $authenticatorAttestationResponse, PublicKeyCredentialCreationOptions $publicKeyCredentialCreationOptions, ?string $rpId = null): void |
|
34
|
|
|
{ |
|
35
|
|
|
/** @see 7.1.1 */ |
|
36
|
|
|
//Nothing to do |
|
37
|
|
|
|
|
38
|
|
|
/** @see 7.1.2 */ |
|
39
|
|
|
$C = $authenticatorAttestationResponse->getClientDataJSON(); |
|
40
|
|
|
|
|
41
|
|
|
/* @see 7.1.3 */ |
|
42
|
|
|
Assertion::eq('webauthn.create', $C->getType(), 'The client data type is not "webauthn.create".'); |
|
43
|
|
|
|
|
44
|
|
|
/* @see 7.1.4 */ |
|
45
|
|
|
Assertion::true(hash_equals($publicKeyCredentialCreationOptions->getChallenge(), $C->getChallenge()), 'Invalid challenge.'); |
|
46
|
|
|
|
|
47
|
|
|
/** @see 7.1.5 */ |
|
48
|
|
|
$rpId = $rpId ?? $publicKeyCredentialCreationOptions->getRp()->getId(); |
|
49
|
|
|
Assertion::notNull($rpId, 'No rpId.'); |
|
50
|
|
|
|
|
51
|
|
|
$parsedRelyingPartyId = parse_url($C->getOrigin()); |
|
52
|
|
|
Assertion::true(array_key_exists('host', $parsedRelyingPartyId) && \is_string($parsedRelyingPartyId['host']), 'Invalid origin rpId.'); |
|
53
|
|
|
|
|
54
|
|
|
Assertion::false(null !== $rpId && $parsedRelyingPartyId['host'] !== $rpId, 'rpId mismatch.'); |
|
55
|
|
|
|
|
56
|
|
|
/* @see 7.1.6 */ |
|
57
|
|
|
Assertion::null($C->getTokenBinding(), 'Token binding not supported.'); |
|
58
|
|
|
|
|
59
|
|
|
/** @see 7.1.7 */ |
|
60
|
|
|
$getClientDataJSONHash = hash('sha256', $authenticatorAttestationResponse->getClientDataJSON()->getRawData(), true); |
|
61
|
|
|
|
|
62
|
|
|
/** @see 7.1.8 */ |
|
63
|
|
|
$attestationObject = $authenticatorAttestationResponse->getAttestationObject(); |
|
64
|
|
|
|
|
65
|
|
|
/** @see 7.1.9 */ |
|
66
|
|
|
$rpIdHash = hash('sha256', $rpId, true); |
|
67
|
|
|
Assertion::true(hash_equals($rpIdHash, $attestationObject->getAuthData()->getRpIdHash()), 'rpId hash mismatch.'); |
|
68
|
|
|
|
|
69
|
|
|
/* @see 7.1.10 */ |
|
70
|
|
|
Assertion::true($attestationObject->getAuthData()->isUserPresent(), 'User was not present'); |
|
71
|
|
|
|
|
72
|
|
|
/* @see 7.1.11 */ |
|
73
|
|
|
Assertion::false(AuthenticatorSelectionCriteria::USER_VERIFICATION_REQUIREMENT_REQUIRED === $publicKeyCredentialCreationOptions->getAuthenticatorSelection()->getUserVerification() && !$attestationObject->getAuthData()->isUserVerified(), 'User authentication required.'); |
|
74
|
|
|
|
|
75
|
|
|
/* @see 7.1.12 */ |
|
76
|
|
|
Assertion::null($attestationObject->getAuthData()->getExtensions(), 'Extensions not supported.'); |
|
77
|
|
|
|
|
78
|
|
|
/** @see 7.1.13 */ |
|
79
|
|
|
$fmt = $attestationObject->getAttStmt()->getFmt(); |
|
80
|
|
|
Assertion::true($this->attestationStatementSupportManager->has($fmt), 'Unsuppoorted attestation statement format.'); |
|
81
|
|
|
|
|
82
|
|
|
/** @see 7.1.14 */ |
|
83
|
|
|
$attestationStatementSupport = $this->attestationStatementSupportManager->get($fmt); |
|
84
|
|
|
Assertion::true($attestationStatementSupport->isValid($getClientDataJSONHash, $attestationObject->getAttStmt(), $attestationObject->getAuthData()), 'Invalid attestation statement.'); |
|
85
|
|
|
|
|
86
|
|
|
/** @see 7.1.15 */ |
|
87
|
|
|
/** @see 7.1.16 */ |
|
88
|
|
|
/** @see 7.1.17 */ |
|
89
|
|
|
$credentialId = $attestationObject->getAuthData()->getAttestedCredentialData()->getCredentialId(); |
|
90
|
|
|
Assertion::false($this->credentialRepository->has($credentialId), 'The credential ID already exists.'); |
|
91
|
|
|
|
|
92
|
|
|
/* @see 7.1.18 */ |
|
93
|
|
|
/* @see 7.1.19 */ |
|
94
|
|
|
} |
|
95
|
|
|
} |
|
96
|
|
|
|
Spomky-Labs /
u2f-php
