1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef mozilla_dom_WebAuthnUtil_h
8 #define mozilla_dom_WebAuthnUtil_h
9 
10 /*
11  * Utility functions used by both WebAuthnManager and U2FTokenManager.
12  */
13 
14 #include "ipc/EnumSerializer.h"
15 #include "mozilla/dom/CryptoBuffer.h"
16 #include "mozilla/dom/WebAuthenticationBinding.h"
17 #include "ipc/IPCMessageUtils.h"
18 
19 namespace mozilla {
20 namespace dom {
21 
22 enum class U2FOperation { Register, Sign };
23 
24 bool EvaluateAppID(nsPIDOMWindowInner* aParent, const nsString& aOrigin,
25                    /* in/out */ nsString& aAppId);
26 
27 nsresult AssembleAuthenticatorData(const CryptoBuffer& rpIdHashBuf,
28                                    const uint8_t flags,
29                                    const CryptoBuffer& counterBuf,
30                                    const CryptoBuffer& attestationDataBuf,
31                                    /* out */ CryptoBuffer& authDataBuf);
32 
33 nsresult AssembleAttestationObject(const CryptoBuffer& aRpIdHash,
34                                    const CryptoBuffer& aPubKeyBuf,
35                                    const CryptoBuffer& aKeyHandleBuf,
36                                    const CryptoBuffer& aAttestationCertBuf,
37                                    const CryptoBuffer& aSignatureBuf,
38                                    bool aForceNoneAttestation,
39                                    /* out */ CryptoBuffer& aAttestationObjBuf);
40 
41 nsresult U2FDecomposeSignResponse(const CryptoBuffer& aResponse,
42                                   /* out */ uint8_t& aFlags,
43                                   /* out */ CryptoBuffer& aCounterBuf,
44                                   /* out */ CryptoBuffer& aSignatureBuf);
45 
46 nsresult U2FDecomposeRegistrationResponse(
47     const CryptoBuffer& aResponse,
48     /* out */ CryptoBuffer& aPubKeyBuf,
49     /* out */ CryptoBuffer& aKeyHandleBuf,
50     /* out */ CryptoBuffer& aAttestationCertBuf,
51     /* out */ CryptoBuffer& aSignatureBuf);
52 
53 nsresult U2FDecomposeECKey(const CryptoBuffer& aPubKeyBuf,
54                            /* out */ CryptoBuffer& aXcoord,
55                            /* out */ CryptoBuffer& aYcoord);
56 
57 nsresult HashCString(const nsACString& aIn, /* out */ CryptoBuffer& aOut);
58 
59 nsresult BuildTransactionHashes(const nsCString& aRpId,
60                                 const nsCString& aClientDataJSON,
61                                 /* out */ CryptoBuffer& aRpIdHash,
62                                 /* out */ CryptoBuffer& aClientDataHash);
63 
64 }  // namespace dom
65 }  // namespace mozilla
66 
67 namespace IPC {
68 
69 template <>
70 struct ParamTraits<mozilla::dom::AuthenticatorAttachment>
71     : public ContiguousEnumSerializer<
72           mozilla::dom::AuthenticatorAttachment,
73           mozilla::dom::AuthenticatorAttachment::Platform,
74           mozilla::dom::AuthenticatorAttachment::EndGuard_> {};
75 
76 template <>
77 struct ParamTraits<mozilla::dom::UserVerificationRequirement>
78     : public ContiguousEnumSerializer<
79           mozilla::dom::UserVerificationRequirement,
80           mozilla::dom::UserVerificationRequirement::Required,
81           mozilla::dom::UserVerificationRequirement::EndGuard_> {};
82 
83 template <>
84 struct ParamTraits<mozilla::dom::AttestationConveyancePreference>
85     : public ContiguousEnumSerializer<
86           mozilla::dom::AttestationConveyancePreference,
87           mozilla::dom::AttestationConveyancePreference::None,
88           mozilla::dom::AttestationConveyancePreference::EndGuard_> {};
89 
90 }  // namespace IPC
91 
92 #endif  // mozilla_dom_WebAuthnUtil_h
93