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70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
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// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_CERT_MERKLE_TREE_LEAF_H_
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#define NET_CERT_MERKLE_TREE_LEAF_H_
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#include <memory>
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#include <string>
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#include "base/time/time.h"
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#include "net/base/net_export.h"
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#include "net/cert/signed_certificate_timestamp.h"
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namespace net {
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class X509Certificate;
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namespace ct {
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// Represents a MerkleTreeLeaf as defined in RFC6962, section 3.4.
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// The goal of this struct is to represent the Merkle tree entry such that
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// all details are easily accessible and a leaf hash can be easily calculated
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// for the entry.
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//
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// As such, it has all the data as the MerkleTreeLeaf defined in the RFC,
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// but it is not identical to the structure in the RFC for the following
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// reasons:
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// * The version is implicit - it is only used for V1 leaves currently.
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// * the leaf_type is also implicit: There's exactly one leaf type and no
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// new types are planned.
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// * The timestamped_entry's |timestamp| and |extensions| fields are directly
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// accessible.
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// * The timestamped_entry's entry_type can be deduced from |signed_entry|.type
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struct NET_EXPORT MerkleTreeLeaf {
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MerkleTreeLeaf();
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MerkleTreeLeaf(const MerkleTreeLeaf& other);
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MerkleTreeLeaf(MerkleTreeLeaf&&);
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~MerkleTreeLeaf();
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// Certificate / Precertificate and indication of entry type.
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SignedEntryData signed_entry;
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// Timestamp from the SCT.
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base::Time timestamp;
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// Extensions from the SCT.
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std::string extensions;
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};
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// Given a |cert| and an |sct| for that certificate, constructs the
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// representation of this entry in the Merkle tree by filling in
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// |merkle_tree_leaf|.
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// Returns false if it failed to construct the |merkle_tree_leaf|.
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NET_EXPORT bool GetMerkleTreeLeaf(const X509Certificate* cert,
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const SignedCertificateTimestamp* sct,
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MerkleTreeLeaf* merkle_tree_leaf);
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// Sets |*out| to the hash of the Merkle |tree_leaf|, as defined in RFC6962,
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// section 3.4. Returns true if the hash was generated, false if an error
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// occurred.
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NET_EXPORT bool HashMerkleTreeLeaf(const MerkleTreeLeaf& tree_leaf,
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std::string* out);
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} // namespace ct
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} // namespace net
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#endif // NET_CERT_MERKLE_TREE_LEAF_H_
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