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1 // Copyright (c) 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_PROOF_SOURCE_H_ | |
6 #define NET_QUIC_CRYPTO_PROOF_SOURCE_H_ | |
7 | |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "net/base/ip_endpoint.h" | |
12 #include "net/base/net_export.h" | |
13 | |
14 namespace net { | |
15 | |
16 // ProofSource is an interface by which a QUIC server can obtain certificate | |
17 // chains and signatures that prove its identity. | |
18 class NET_EXPORT_PRIVATE ProofSource { | |
19 public: | |
20 virtual ~ProofSource() {} | |
21 | |
22 // GetProof finds a certificate chain for |hostname|, sets |out_certs| to | |
23 // point to it (in leaf-first order), calculates a signature of | |
24 // |server_config| using that chain and puts the result in |out_signature|. | |
25 // | |
26 // The signature uses SHA-256 as the hash function and PSS padding when the | |
27 // key is RSA. | |
28 // | |
29 // The signature uses SHA-256 as the hash function when the key is ECDSA. | |
30 // | |
31 // If |ecdsa_ok| is true, the signature may use an ECDSA key. Otherwise, the | |
32 // signature must use an RSA key. | |
33 // | |
34 // |out_certs| is a pointer to a pointer, not a pointer to an array. | |
35 // | |
36 // The number of certificate chains is expected to be small and fixed thus | |
37 // the ProofSource retains ownership of the contents of |out_certs|. The | |
38 // expectation is that they will be cached forever. | |
39 // | |
40 // The signature values should be cached because |server_config| will be | |
41 // somewhat static. However, since they aren't bounded, the ProofSource may | |
42 // wish to evicit entries from that cache, thus the caller takes ownership of | |
43 // |*out_signature|. | |
44 // | |
45 // |hostname| may be empty to signify that a default certificate should be | |
46 // used. | |
47 // | |
48 // This function may be called concurrently. | |
49 virtual bool GetProof(const IPEndPoint& server_ip, | |
50 const std::string& hostname, | |
51 const std::string& server_config, | |
52 bool ecdsa_ok, | |
53 const std::vector<std::string>** out_certs, | |
54 std::string* out_signature) = 0; | |
55 }; | |
56 | |
57 } // namespace net | |
58 | |
59 #endif // NET_QUIC_CRYPTO_PROOF_SOURCE_H_ | |
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