OLD | NEW |
| (Empty) |
1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef NET_QUIC_CRYPTO_CHANNEL_ID_H_ | |
6 #define NET_QUIC_CRYPTO_CHANNEL_ID_H_ | |
7 | |
8 #include <memory> | |
9 #include <string> | |
10 | |
11 #include "base/macros.h" | |
12 #include "base/strings/string_piece.h" | |
13 #include "net/base/net_export.h" | |
14 #include "net/quic/quic_types.h" | |
15 | |
16 namespace net { | |
17 | |
18 // ChannelIDKey is an interface that supports signing with and serializing a | |
19 // ChannelID key. | |
20 class NET_EXPORT_PRIVATE ChannelIDKey { | |
21 public: | |
22 virtual ~ChannelIDKey() {} | |
23 | |
24 // Sign signs |signed_data| using the ChannelID private key and puts the | |
25 // signature into |out_signature|. It returns true on success. | |
26 virtual bool Sign(base::StringPiece signed_data, | |
27 std::string* out_signature) const = 0; | |
28 | |
29 // SerializeKey returns the serialized ChannelID public key. | |
30 virtual std::string SerializeKey() const = 0; | |
31 }; | |
32 | |
33 // ChannelIDSourceCallback provides a generic mechanism for a ChannelIDSource | |
34 // to call back after an asynchronous GetChannelIDKey operation. | |
35 class ChannelIDSourceCallback { | |
36 public: | |
37 virtual ~ChannelIDSourceCallback() {} | |
38 | |
39 // Run is called on the original thread to mark the completion of an | |
40 // asynchonous GetChannelIDKey operation. If |*channel_id_key| is not nullptr | |
41 // then the channel ID lookup is successful. |Run| may take ownership of | |
42 // |*channel_id_key| by calling |release| on it. | |
43 virtual void Run(std::unique_ptr<ChannelIDKey>* channel_id_key) = 0; | |
44 }; | |
45 | |
46 // ChannelIDSource is an abstract interface by which a QUIC client can obtain | |
47 // a ChannelIDKey for a given hostname. | |
48 class NET_EXPORT_PRIVATE ChannelIDSource { | |
49 public: | |
50 virtual ~ChannelIDSource() {} | |
51 | |
52 // GetChannelIDKey looks up the ChannelIDKey for |hostname|. On success it | |
53 // returns QUIC_SUCCESS and stores the ChannelIDKey in |*channel_id_key|, | |
54 // which the caller takes ownership of. On failure, it returns QUIC_FAILURE. | |
55 // | |
56 // This function may also return QUIC_PENDING, in which case the | |
57 // ChannelIDSource will call back, on the original thread, via |callback| | |
58 // when complete. In this case, the ChannelIDSource will take ownership of | |
59 // |callback|. | |
60 virtual QuicAsyncStatus GetChannelIDKey( | |
61 const std::string& hostname, | |
62 std::unique_ptr<ChannelIDKey>* channel_id_key, | |
63 ChannelIDSourceCallback* callback) = 0; | |
64 }; | |
65 | |
66 // ChannelIDVerifier verifies ChannelID signatures. | |
67 class NET_EXPORT_PRIVATE ChannelIDVerifier { | |
68 public: | |
69 // kContextStr is prepended to the data to be signed in order to ensure that | |
70 // a ChannelID signature cannot be used in a different context. (The | |
71 // terminating NUL byte is inclued.) | |
72 static const char kContextStr[]; | |
73 // kClientToServerStr follows kContextStr to specify that the ChannelID is | |
74 // being used in the client to server direction. (The terminating NUL byte is | |
75 // included.) | |
76 static const char kClientToServerStr[]; | |
77 | |
78 // Verify returns true iff |signature| is a valid signature of |signed_data| | |
79 // by |key|. | |
80 static bool Verify(base::StringPiece key, | |
81 base::StringPiece signed_data, | |
82 base::StringPiece signature); | |
83 | |
84 // FOR TESTING ONLY: VerifyRaw returns true iff |signature| is a valid | |
85 // signature of |signed_data| by |key|. |is_channel_id_signature| indicates | |
86 // whether |signature| is a ChannelID signature (with kContextStr prepended | |
87 // to the data to be signed). | |
88 static bool VerifyRaw(base::StringPiece key, | |
89 base::StringPiece signed_data, | |
90 base::StringPiece signature, | |
91 bool is_channel_id_signature); | |
92 | |
93 private: | |
94 DISALLOW_COPY_AND_ASSIGN(ChannelIDVerifier); | |
95 }; | |
96 | |
97 } // namespace net | |
98 | |
99 #endif // NET_QUIC_CRYPTO_CHANNEL_ID_H_ | |
OLD | NEW |