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- // Copyright 2016 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.
- #include "net/cert/merkle_tree_leaf.h"
- #include "crypto/sha2.h"
- #include "net/cert/ct_objects_extractor.h"
- #include "net/cert/ct_serialization.h"
- #include "net/cert/x509_certificate.h"
- namespace net::ct {
- MerkleTreeLeaf::MerkleTreeLeaf() = default;
- MerkleTreeLeaf::MerkleTreeLeaf(const MerkleTreeLeaf& other) = default;
- MerkleTreeLeaf::MerkleTreeLeaf(MerkleTreeLeaf&&) = default;
- MerkleTreeLeaf::~MerkleTreeLeaf() = default;
- bool HashMerkleTreeLeaf(const MerkleTreeLeaf& tree_leaf, std::string* out) {
- // Prepend 0 byte as per RFC 6962, section-2.1
- std::string leaf_in_tls_format("\x00", 1);
- if (!EncodeTreeLeaf(tree_leaf, &leaf_in_tls_format))
- return false;
- *out = crypto::SHA256HashString(leaf_in_tls_format);
- return true;
- }
- bool GetMerkleTreeLeaf(const X509Certificate* cert,
- const SignedCertificateTimestamp* sct,
- MerkleTreeLeaf* merkle_tree_leaf) {
- if (sct->origin == SignedCertificateTimestamp::SCT_EMBEDDED) {
- if (cert->intermediate_buffers().empty() ||
- !GetPrecertSignedEntry(cert->cert_buffer(),
- cert->intermediate_buffers().front().get(),
- &merkle_tree_leaf->signed_entry)) {
- return false;
- }
- } else {
- if (!GetX509SignedEntry(cert->cert_buffer(),
- &merkle_tree_leaf->signed_entry)) {
- return false;
- }
- }
- merkle_tree_leaf->timestamp = sct->timestamp;
- merkle_tree_leaf->extensions = sct->extensions;
- return true;
- }
- } // namespace net::ct
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