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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_CERT_MULTI_LOG_CT_VERIFIER_H_
#define NET_CERT_MULTI_LOG_CT_VERIFIER_H_
#include <map>
#include <string>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/strings/string_piece.h"
#include "net/base/net_export.h"
#include "net/cert/ct_verifier.h"
#include "net/cert/signed_certificate_timestamp.h"
namespace net {
namespace ct {
struct LogEntry;
} // namespace ct
class CTLogVerifier;
// A Certificate Transparency verifier that can verify Signed Certificate
// Timestamps from multiple logs.
// It must be initialized with a list of logs by calling AddLogs.
class NET_EXPORT MultiLogCTVerifier : public CTVerifier {
public:
MultiLogCTVerifier();
~MultiLogCTVerifier() override;
void AddLogs(
const std::vector<scoped_refptr<const CTLogVerifier>>& log_verifiers);
// CTVerifier implementation:
void Verify(X509Certificate* cert,
base::StringPiece stapled_ocsp_response,
base::StringPiece sct_list_from_tls_extension,
SignedCertificateTimestampAndStatusList* output_scts,
const NetLogWithSource& net_log) override;
void SetObserver(Observer* observer) override;
private:
// Verify a list of SCTs from |encoded_sct_list| over |expected_entry|,
// placing the verification results in |output_scts|. The SCTs in the list
// come from |origin| (as will be indicated in the origin field of each SCT).
void VerifySCTs(base::StringPiece encoded_sct_list,
const ct::LogEntry& expected_entry,
ct::SignedCertificateTimestamp::Origin origin,
X509Certificate* cert,
SignedCertificateTimestampAndStatusList* output_scts);
// Verifies a single, parsed SCT against all logs.
bool VerifySingleSCT(scoped_refptr<ct::SignedCertificateTimestamp> sct,
const ct::LogEntry& expected_entry,
X509Certificate* cert,
SignedCertificateTimestampAndStatusList* output_scts);
// Mapping from a log's ID to the verifier for this log.
// A log's ID is the SHA-256 of the log's key, as defined in section 3.2.
// of RFC6962.
std::map<std::string, scoped_refptr<const CTLogVerifier>> logs_;
Observer* observer_;
DISALLOW_COPY_AND_ASSIGN(MultiLogCTVerifier);
};
} // namespace net
#endif // NET_CERT_MULTI_LOG_CT_VERIFIER_H_
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