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_CERT_MULTI_LOG_CT_VERIFIER_H_
6#define NET_CERT_MULTI_LOG_CT_VERIFIER_H_
7
8#include <map>
9#include <string>
10
11#include "base/memory/linked_ptr.h"
12#include "base/memory/scoped_ptr.h"
13#include "base/memory/scoped_vector.h"
14#include "net/base/net_export.h"
15#include "net/cert/ct_verifier.h"
16#include "net/cert/signed_certificate_timestamp.h"
17
18namespace net {
19
20namespace ct {
21struct LogEntry;
22}  // namespace ct
23
24class CTLogVerifier;
25
26// A Certificate Transparency verifier that can verify Signed Certificate
27// Timestamps from multiple logs.
28// There should be a global instance of this class and for all known logs,
29// AddLog should be called with a CTLogVerifier (which is created from the
30// log's public key).
31class NET_EXPORT MultiLogCTVerifier : public CTVerifier {
32 public:
33  MultiLogCTVerifier();
34  virtual ~MultiLogCTVerifier();
35
36  void AddLog(scoped_ptr<CTLogVerifier> log_verifier);
37  void AddLogs(ScopedVector<CTLogVerifier> log_verifiers);
38
39  // CTVerifier implementation:
40  virtual int Verify(X509Certificate* cert,
41                     const std::string& stapled_ocsp_response,
42                     const std::string& sct_list_from_tls_extension,
43                     ct::CTVerifyResult* result,
44                     const BoundNetLog& net_log) OVERRIDE;
45
46 private:
47  // Mapping from a log's ID to the verifier for this log.
48  // A log's ID is the SHA-256 of the log's key, as defined in section 3.2.
49  // of RFC6962.
50  typedef std::map<std::string, linked_ptr<CTLogVerifier> > IDToLogMap;
51
52  // Verify a list of SCTs from |encoded_sct_list| over |expected_entry|,
53  // placing the verification results in |result|. The SCTs in the list
54  // come from |origin| (as will be indicated in the origin field of each SCT).
55  bool VerifySCTs(const std::string& encoded_sct_list,
56                  const ct::LogEntry& expected_entry,
57                  ct::SignedCertificateTimestamp::Origin origin,
58                  ct::CTVerifyResult* result);
59
60  // Verifies a single, parsed SCT against all logs.
61  bool VerifySingleSCT(
62      scoped_refptr<ct::SignedCertificateTimestamp> sct,
63      const ct::LogEntry& expected_entry,
64      ct::CTVerifyResult* result);
65
66  IDToLogMap logs_;
67
68  DISALLOW_COPY_AND_ASSIGN(MultiLogCTVerifier);
69};
70
71}  // namespace net
72
73#endif  // NET_CERT_MULTI_LOG_CT_VERIFIER_H_
74