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59 lines
1.7 KiB
C++
59 lines
1.7 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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#include "net/cert/merkle_tree_leaf.h"
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#include "crypto/sha2.h"
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#include "net/cert/ct_objects_extractor.h"
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#include "net/cert/ct_serialization.h"
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#include "net/cert/x509_certificate.h"
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namespace net {
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namespace ct {
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MerkleTreeLeaf::MerkleTreeLeaf() = default;
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MerkleTreeLeaf::MerkleTreeLeaf(const MerkleTreeLeaf& other) = default;
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MerkleTreeLeaf::MerkleTreeLeaf(MerkleTreeLeaf&&) = default;
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MerkleTreeLeaf::~MerkleTreeLeaf() = default;
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bool HashMerkleTreeLeaf(const MerkleTreeLeaf& tree_leaf, std::string* out) {
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// Prepend 0 byte as per RFC 6962, section-2.1
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std::string leaf_in_tls_format("\x00", 1);
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if (!EncodeTreeLeaf(tree_leaf, &leaf_in_tls_format))
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return false;
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*out = crypto::SHA256HashString(leaf_in_tls_format);
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return true;
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}
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bool GetMerkleTreeLeaf(const X509Certificate* cert,
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const SignedCertificateTimestamp* sct,
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MerkleTreeLeaf* merkle_tree_leaf) {
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if (sct->origin == SignedCertificateTimestamp::SCT_EMBEDDED) {
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if (cert->GetIntermediateCertificates().empty() ||
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!GetPrecertSignedEntry(cert->os_cert_handle(),
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cert->GetIntermediateCertificates().front(),
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&merkle_tree_leaf->signed_entry)) {
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return false;
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}
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} else {
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if (!GetX509SignedEntry(cert->os_cert_handle(),
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&merkle_tree_leaf->signed_entry)) {
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return false;
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}
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}
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merkle_tree_leaf->timestamp = sct->timestamp;
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merkle_tree_leaf->extensions = sct->extensions;
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return true;
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}
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} // namespace ct
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} // namespace net
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