mirror of
https://github.com/Evolution-X/hardware_interfaces
synced 2026-02-01 11:36:00 +00:00
17be89b21b
In native world, byte stream is typically represented in uint8_t[]
or vector<uint8_t>. C++ backend already generates that way. This
change involves NDK backend.
Now NDK backend also uses vector<uint8_t> just like C++ backend.
Bug: 144957764
Test: atest CtsNdkBinderTestCases
Merged-In: I8de348b57cf92dd99b3ee16252f56300ce5f4683
Change-Id: I8de348b57cf92dd99b3ee16252f56300ce5f4683
(cherry picked from commit 9070318462)
Exempt-From-Owner-Approval: cp from internal
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
/*
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* Copyright 2019, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "Util"
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#include "Util.h"
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#include <android/hardware/identity/support/IdentityCredentialSupport.h>
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#include <string.h>
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#include <android-base/logging.h>
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#include <cppbor.h>
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#include <cppbor_parse.h>
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namespace aidl::android::hardware::identity {
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using namespace ::android::hardware::identity;
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// This is not a very random HBK but that's OK because this is the SW
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// implementation where it can't be kept secret.
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vector<uint8_t> hardwareBoundKey = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
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const vector<uint8_t>& getHardwareBoundKey() {
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return hardwareBoundKey;
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}
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vector<uint8_t> secureAccessControlProfileEncodeCbor(const SecureAccessControlProfile& profile) {
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cppbor::Map map;
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map.add("id", profile.id);
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if (profile.readerCertificate.encodedCertificate.size() > 0) {
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map.add("readerCertificate", cppbor::Bstr(profile.readerCertificate.encodedCertificate));
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}
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if (profile.userAuthenticationRequired) {
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map.add("userAuthenticationRequired", profile.userAuthenticationRequired);
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map.add("timeoutMillis", profile.timeoutMillis);
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map.add("secureUserId", profile.secureUserId);
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}
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return map.encode();
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}
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optional<vector<uint8_t>> secureAccessControlProfileCalcMac(
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const SecureAccessControlProfile& profile, const vector<uint8_t>& storageKey) {
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vector<uint8_t> cborData = secureAccessControlProfileEncodeCbor(profile);
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optional<vector<uint8_t>> nonce = support::getRandom(12);
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if (!nonce) {
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return {};
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}
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optional<vector<uint8_t>> macO =
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support::encryptAes128Gcm(storageKey, nonce.value(), {}, cborData);
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if (!macO) {
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return {};
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}
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return macO.value();
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}
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bool secureAccessControlProfileCheckMac(const SecureAccessControlProfile& profile,
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const vector<uint8_t>& storageKey) {
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vector<uint8_t> cborData = secureAccessControlProfileEncodeCbor(profile);
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if (profile.mac.size() < support::kAesGcmIvSize) {
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return false;
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}
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vector<uint8_t> nonce =
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vector<uint8_t>(profile.mac.begin(), profile.mac.begin() + support::kAesGcmIvSize);
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optional<vector<uint8_t>> mac = support::encryptAes128Gcm(storageKey, nonce, {}, cborData);
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if (!mac) {
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return false;
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}
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if (mac.value() != profile.mac) {
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return false;
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}
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return true;
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}
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vector<uint8_t> entryCreateAdditionalData(const string& nameSpace, const string& name,
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const vector<int32_t> accessControlProfileIds) {
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cppbor::Map map;
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map.add("Namespace", nameSpace);
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map.add("Name", name);
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cppbor::Array acpIds;
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for (auto id : accessControlProfileIds) {
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acpIds.add(id);
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}
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map.add("AccessControlProfileIds", std::move(acpIds));
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return map.encode();
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}
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} // namespace aidl::android::hardware::identity
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