b6179f25be
This CL bumps the reported version for Trusty's IRemotelyProvisionedComponent HAL interface for KeyMint. It also adds the uniqueId field added to the RpcHardwareInfo in version 2. Test: atest VtsHalRemotelyProvisionedComponentTargetTest Change-Id: I336ec7cd12ca2ea3b836601ebe0ca400524b8ca4
121 lines
4.6 KiB
C++
121 lines
4.6 KiB
C++
/*
|
|
* Copyright 2021, The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <trusty_keymaster/TrustyRemotelyProvisionedComponentDevice.h>
|
|
|
|
#include <assert.h>
|
|
#include <variant>
|
|
|
|
#include <KeyMintUtils.h>
|
|
#include <keymaster/keymaster_configuration.h>
|
|
|
|
#include <trusty_keymaster/TrustyKeyMintDevice.h>
|
|
|
|
namespace aidl::android::hardware::security::keymint::trusty {
|
|
|
|
using keymaster::GenerateCsrRequest;
|
|
using keymaster::GenerateCsrResponse;
|
|
using keymaster::GenerateRkpKeyRequest;
|
|
using keymaster::GenerateRkpKeyResponse;
|
|
using keymaster::KeymasterBlob;
|
|
using ::std::string;
|
|
using ::std::unique_ptr;
|
|
using ::std::vector;
|
|
using bytevec = ::std::vector<uint8_t>;
|
|
|
|
namespace {
|
|
|
|
constexpr auto STATUS_FAILED = IRemotelyProvisionedComponent::STATUS_FAILED;
|
|
|
|
struct AStatusDeleter {
|
|
void operator()(AStatus* p) { AStatus_delete(p); }
|
|
};
|
|
|
|
class Status {
|
|
public:
|
|
Status() : status_(AStatus_newOk()) {}
|
|
Status(int32_t errCode, const std::string& errMsg)
|
|
: status_(AStatus_fromServiceSpecificErrorWithMessage(errCode, errMsg.c_str())) {}
|
|
explicit Status(const std::string& errMsg)
|
|
: status_(AStatus_fromServiceSpecificErrorWithMessage(STATUS_FAILED, errMsg.c_str())) {}
|
|
explicit Status(AStatus* status) : status_(status ? status : AStatus_newOk()) {}
|
|
|
|
Status(Status&&) = default;
|
|
Status(const Status&) = delete;
|
|
|
|
operator ::ndk::ScopedAStatus() && { // NOLINT(google-explicit-constructor)
|
|
return ndk::ScopedAStatus(status_.release());
|
|
}
|
|
|
|
bool isOk() const { return AStatus_isOk(status_.get()); }
|
|
|
|
const char* getMessage() const { return AStatus_getMessage(status_.get()); }
|
|
|
|
private:
|
|
std::unique_ptr<AStatus, AStatusDeleter> status_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
ScopedAStatus TrustyRemotelyProvisionedComponentDevice::getHardwareInfo(RpcHardwareInfo* info) {
|
|
info->versionNumber = 2;
|
|
info->rpcAuthorName = "Google";
|
|
info->supportedEekCurve = RpcHardwareInfo::CURVE_25519;
|
|
info->uniqueId = "Trusty: My password is ******";
|
|
return ScopedAStatus::ok();
|
|
}
|
|
|
|
ScopedAStatus TrustyRemotelyProvisionedComponentDevice::generateEcdsaP256KeyPair(
|
|
bool testMode, MacedPublicKey* macedPublicKey, bytevec* privateKeyHandle) {
|
|
GenerateRkpKeyRequest request(impl_->message_version());
|
|
request.test_mode = testMode;
|
|
GenerateRkpKeyResponse response(impl_->message_version());
|
|
impl_->GenerateRkpKey(request, &response);
|
|
if (response.error != KM_ERROR_OK) {
|
|
return Status(-static_cast<int32_t>(response.error), "Failure in key generation.");
|
|
}
|
|
|
|
macedPublicKey->macedKey = km_utils::kmBlob2vector(response.maced_public_key);
|
|
*privateKeyHandle = km_utils::kmBlob2vector(response.key_blob);
|
|
return ScopedAStatus::ok();
|
|
}
|
|
|
|
ScopedAStatus TrustyRemotelyProvisionedComponentDevice::generateCertificateRequest(
|
|
bool testMode, const vector<MacedPublicKey>& keysToSign,
|
|
const bytevec& endpointEncCertChain, const bytevec& challenge, DeviceInfo* deviceInfo,
|
|
ProtectedData* protectedData, bytevec* keysToSignMac) {
|
|
GenerateCsrRequest request(impl_->message_version());
|
|
request.test_mode = testMode;
|
|
request.num_keys = keysToSign.size();
|
|
request.keys_to_sign_array = new KeymasterBlob[keysToSign.size()];
|
|
for (size_t i = 0; i < keysToSign.size(); i++) {
|
|
request.SetKeyToSign(i, keysToSign[i].macedKey.data(), keysToSign[i].macedKey.size());
|
|
}
|
|
request.SetEndpointEncCertChain(endpointEncCertChain.data(), endpointEncCertChain.size());
|
|
request.SetChallenge(challenge.data(), challenge.size());
|
|
GenerateCsrResponse response(impl_->message_version());
|
|
impl_->GenerateCsr(request, &response);
|
|
|
|
if (response.error != KM_ERROR_OK) {
|
|
return Status(-static_cast<int32_t>(response.error), "Failure in CSR Generation.");
|
|
}
|
|
deviceInfo->deviceInfo = km_utils::kmBlob2vector(response.device_info_blob);
|
|
protectedData->protectedData = km_utils::kmBlob2vector(response.protected_data_blob);
|
|
*keysToSignMac = km_utils::kmBlob2vector(response.keys_to_sign_mac);
|
|
return ScopedAStatus::ok();
|
|
}
|
|
|
|
} // namespace aidl::android::hardware::security::keymint::trusty
|