mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
// Copyright (c) 2017 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/known_roots_win.h"
|
|
|
|
#include "base/metrics/histogram_macros.h"
|
|
#include "crypto/sha2.h"
|
|
#include "net/base/hash_value.h"
|
|
#include "net/cert/x509_certificate_known_roots_win.h"
|
|
#include "net/cert/x509_util_win.h"
|
|
|
|
namespace net {
|
|
|
|
bool IsKnownRoot(PCCERT_CONTEXT cert) {
|
|
SHA256HashValue hash = x509_util::CalculateFingerprint256(cert);
|
|
bool is_builtin =
|
|
IsSHA256HashInSortedArray(HashValue(hash), kKnownRootCertSHA256Hashes,
|
|
kKnownRootCertSHA256HashesLength);
|
|
|
|
// Test to see if the use of a built-in set of known roots on Windows can be
|
|
// replaced with using AuthRoot's SHA-256 property. On any system other than
|
|
// a fresh RTM with no AuthRoot updates, this property should always exist for
|
|
// roots delivered via AuthRoot.stl, but should not exist on any manually or
|
|
// administratively deployed roots.
|
|
BYTE hash_prop[32] = {0};
|
|
DWORD size = sizeof(hash_prop);
|
|
bool found_property =
|
|
CertGetCertificateContextProperty(
|
|
cert, CERT_AUTH_ROOT_SHA256_HASH_PROP_ID, &hash_prop, &size) &&
|
|
size == sizeof(hash_prop);
|
|
|
|
enum BuiltinStatus {
|
|
BUILT_IN_PROPERTY_NOT_FOUND_BUILTIN_NOT_SET = 0,
|
|
BUILT_IN_PROPERTY_NOT_FOUND_BUILTIN_SET = 1,
|
|
BUILT_IN_PROPERTY_FOUND_BUILTIN_NOT_SET = 2,
|
|
BUILT_IN_PROPERTY_FOUND_BUILTIN_SET = 3,
|
|
BUILT_IN_MAX_VALUE,
|
|
} status;
|
|
if (!found_property && !is_builtin) {
|
|
status = BUILT_IN_PROPERTY_NOT_FOUND_BUILTIN_NOT_SET;
|
|
} else if (!found_property && is_builtin) {
|
|
status = BUILT_IN_PROPERTY_NOT_FOUND_BUILTIN_SET;
|
|
} else if (found_property && !is_builtin) {
|
|
status = BUILT_IN_PROPERTY_FOUND_BUILTIN_NOT_SET;
|
|
} else if (found_property && is_builtin) {
|
|
status = BUILT_IN_PROPERTY_FOUND_BUILTIN_SET;
|
|
} else {
|
|
status = BUILT_IN_MAX_VALUE;
|
|
}
|
|
UMA_HISTOGRAM_ENUMERATION("Net.SSL_AuthRootConsistency", status,
|
|
BUILT_IN_MAX_VALUE);
|
|
|
|
return is_builtin;
|
|
}
|
|
|
|
} // namespace net
|