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refactor: migrate hashing code to new upstream crypto::hash API (#46237)

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* refactor: migrate AsarFileValidator to crypto::hash

This change migrates AsarFileValidator's uses of crypto::secure_hash
to the new crypto::hash API, which has more memory safety and less
heap allocations.

Xref: 6287609

* refactor: migrate ValidateIntegrityOrDie to crypto::hash

This change migrates ValidateIntegrityOrDie's use of crypto::SHA256Hash
to the new crypto::hash API, which has more memory safety and less heap
allocations.

Xref: 6287609
This commit is contained in:
Charles Kerr 2025-03-25 15:01:17 -05:00 • committed by GitHub
parent bb0ddcad27
commit c8d3184a95
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GPG key ID: B5690EEEBB952194
3 changed files with 8 additions and 10 deletions
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7
shell/browser/net/asar/asar_file_validator.cc
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@ -14,7 +14,6 @@
#include "base/notreached.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "crypto/sha2.h"
namespace asar {
@ -34,7 +33,7 @@ void AsarFileValidator::EnsureBlockHashExists() {
current_hash_byte_count_ = 0U;
switch (integrity_.algorithm) {
case HashAlgorithm::kSHA256:
current_hash_ = crypto::SecureHash::Create(crypto::SecureHash::SHA256);
current_hash_.emplace(crypto::hash::kSha256);
break;
case HashAlgorithm::kNone:
NOTREACHED();
@ -86,7 +85,7 @@ bool AsarFileValidator::FinishBlock() {
if (!current_hash_) {
// This happens when we fail to read the resource. Compute empty content's
// hash in this case.
current_hash_ = crypto::SecureHash::Create(crypto::SecureHash::SHA256);
current_hash_.emplace(crypto::hash::kSha256);
}
// If the file reader is done we need to make sure we've either read up to the
@ -108,7 +107,7 @@ bool AsarFileValidator::FinishBlock() {
current_hash_->Update(abandoned_buffer);
}
auto actual = std::array<uint8_t, crypto::kSHA256Length>{};
auto actual = std::array<uint8_t, crypto::hash::kSha256Size>{};
current_hash_->Finish(actual);
current_hash_.reset();
current_hash_byte_count_ = 0;