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/*
* Copyright (C) 2020 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.
*/
#define LOG_TAG "UpdateCredentialTests"
#include <aidl/Gtest.h>
#include <aidl/Vintf.h>
#include <aidl/android/hardware/keymaster/HardwareAuthToken.h>
#include <aidl/android/hardware/keymaster/VerificationToken.h>
#include <android-base/logging.h>
#include <android/hardware/identity/IIdentityCredentialStore.h>
#include <android/hardware/identity/support/IdentityCredentialSupport.h>
#include <binder/IServiceManager.h>
#include <binder/ProcessState.h>
#include <cppbor.h>
#include <cppbor_parse.h>
#include <gtest/gtest.h>
#include <future>
#include <map>
#include <utility>
#include "Util.h"
namespace android::hardware::identity {
using std::endl;
using std::make_pair;
using std::map;
using std::optional;
using std::pair;
using std::string;
using std::tie;
using std::vector;
using ::android::sp;
using ::android::String16;
using ::android::binder::Status;
using ::android::hardware::keymaster::HardwareAuthToken;
using ::android::hardware::keymaster::VerificationToken;
class UpdateCredentialTests : public testing::TestWithParam<string> {
public:
virtual void SetUp() override {
credentialStore_ = android::waitForDeclaredService<IIdentityCredentialStore>(
String16(GetParam().c_str()));
ASSERT_NE(credentialStore_, nullptr);
halApiVersion_ = credentialStore_->getInterfaceVersion();
}
void provisionData();
// Set by provisionData
vector<uint8_t> credentialData_;
vector<uint8_t> credentialPubKey_;
sp<IIdentityCredentialStore> credentialStore_;
int halApiVersion_;
};
void UpdateCredentialTests::provisionData() {
string docType = "org.iso.18013-5.2019.mdl";
bool testCredential = true;
sp<IWritableIdentityCredential> wc;
ASSERT_TRUE(credentialStore_->createCredential(docType, testCredential, &wc).isOk());
vector<uint8_t> attestationApplicationId = {};
vector<uint8_t> attestationChallenge = {1};
vector<Certificate> certChain;
ASSERT_TRUE(wc->getAttestationCertificate(attestationApplicationId, attestationChallenge,
&certChain)
.isOk());
optional<vector<uint8_t>> optCredentialPubKey =
support::certificateChainGetTopMostKey(certChain[0].encodedCertificate);
ASSERT_TRUE(optCredentialPubKey);
credentialPubKey_ = optCredentialPubKey.value();
size_t proofOfProvisioningSize = 112;
// Not in v1 HAL, may fail
wc->setExpectedProofOfProvisioningSize(proofOfProvisioningSize);
ASSERT_TRUE(wc->startPersonalization(1 /* numAccessControlProfiles */,
{1} /* numDataElementsPerNamespace */)
.isOk());
// Access control profile 0: open access - don't care about the returned SACP
SecureAccessControlProfile sacp;
ASSERT_TRUE(wc->addAccessControlProfile(1, {}, false, 0, 0, &sacp).isOk());
// Single entry - don't care about the returned encrypted data
vector<uint8_t> encryptedData;
vector<uint8_t> tstrLastName = cppbor::Tstr("Prince").encode();
ASSERT_TRUE(wc->beginAddEntry({1}, "ns", "Last name", tstrLastName.size()).isOk());
ASSERT_TRUE(wc->addEntryValue(tstrLastName, &encryptedData).isOk());
vector<uint8_t> proofOfProvisioningSignature;
Status status = wc->finishAddingEntries(&credentialData_, &proofOfProvisioningSignature);
EXPECT_TRUE(status.isOk()) << status.exceptionCode() << ": " << status.exceptionMessage();
optional<vector<uint8_t>> proofOfProvisioning =
support::coseSignGetPayload(proofOfProvisioningSignature);
ASSERT_TRUE(proofOfProvisioning);
string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {});
EXPECT_EQ(
"[\n"
" 'ProofOfProvisioning',\n"
" 'org.iso.18013-5.2019.mdl',\n"
" [\n"
" {\n"
" 'id' : 1,\n"
" },\n"
" ],\n"
" {\n"
" 'ns' : [\n"
" {\n"
" 'name' : 'Last name',\n"
" 'value' : 'Prince',\n"
" 'accessControlProfiles' : [1, ],\n"
" },\n"
" ],\n"
" },\n"
" true,\n"
"]",
cborPretty);
// Make sure it's signed by the CredentialKey in the returned cert chain.
EXPECT_TRUE(support::coseCheckEcDsaSignature(proofOfProvisioningSignature,
{}, // Additional data
credentialPubKey_));
}
TEST_P(UpdateCredentialTests, updateCredential) {
if (halApiVersion_ < 3) {
GTEST_SKIP() << "Need HAL API version 3, have " << halApiVersion_;
}
provisionData();
sp<IIdentityCredential> credential;
ASSERT_TRUE(credentialStore_
->getCredential(
CipherSuite::CIPHERSUITE_ECDHE_HKDF_ECDSA_WITH_AES_256_GCM_SHA256,
credentialData_, &credential)
.isOk());
sp<IWritableIdentityCredential> wc;
ASSERT_TRUE(credential->updateCredential(&wc).isOk());
// Getting an attestation cert should fail (because it's an update).
vector<uint8_t> attestationApplicationId = {};
vector<uint8_t> attestationChallenge = {1};
vector<Certificate> certChain;
Status result = wc->getAttestationCertificate(attestationApplicationId, attestationChallenge,
&certChain);
ASSERT_FALSE(result.isOk());
EXPECT_EQ(binder::Status::EX_SERVICE_SPECIFIC, result.exceptionCode());
EXPECT_EQ(IIdentityCredentialStore::STATUS_FAILED, result.serviceSpecificErrorCode());
// Now provision some new data...
//
size_t proofOfProvisioningSize = 117;
// Not in v1 HAL, may fail
wc->setExpectedProofOfProvisioningSize(proofOfProvisioningSize);
ASSERT_TRUE(wc->startPersonalization(1 /* numAccessControlProfiles */,
{1} /* numDataElementsPerNamespace */)
.isOk());
// Access control profile 0: open access - don't care about the returned SACP
SecureAccessControlProfile sacp;
ASSERT_TRUE(wc->addAccessControlProfile(2, {}, false, 0, 0, &sacp).isOk());
// Single entry - don't care about the returned encrypted data
vector<uint8_t> encryptedData;
vector<uint8_t> tstrLastName = cppbor::Tstr("T.A.F.K.A.P").encode();
ASSERT_TRUE(wc->beginAddEntry({2}, "ns", "Last name", tstrLastName.size()).isOk());
ASSERT_TRUE(wc->addEntryValue(tstrLastName, &encryptedData).isOk());
vector<uint8_t> proofOfProvisioningSignature;
Status status = wc->finishAddingEntries(&credentialData_, &proofOfProvisioningSignature);
EXPECT_TRUE(status.isOk()) << status.exceptionCode() << ": " << status.exceptionMessage();
optional<vector<uint8_t>> proofOfProvisioning =
support::coseSignGetPayload(proofOfProvisioningSignature);
ASSERT_TRUE(proofOfProvisioning);
string cborPretty = cppbor::prettyPrint(proofOfProvisioning.value(), 32, {});
EXPECT_EQ(
"[\n"
" 'ProofOfProvisioning',\n"
" 'org.iso.18013-5.2019.mdl',\n"
" [\n"
" {\n"
" 'id' : 2,\n"
" },\n"
" ],\n"
" {\n"
" 'ns' : [\n"
" {\n"
" 'name' : 'Last name',\n"
" 'value' : 'T.A.F.K.A.P',\n"
" 'accessControlProfiles' : [2, ],\n"
" },\n"
" ],\n"
" },\n"
" true,\n"
"]",
cborPretty);
// Make sure it's signed by the same CredentialKey we originally provisioned with.
EXPECT_TRUE(support::coseCheckEcDsaSignature(proofOfProvisioningSignature,
{}, // Additional data
credentialPubKey_));
}
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(UpdateCredentialTests);
INSTANTIATE_TEST_SUITE_P(
Identity, UpdateCredentialTests,
testing::ValuesIn(android::getAidlHalInstanceNames(IIdentityCredentialStore::descriptor)),
android::PrintInstanceNameToString);
} // namespace android::hardware::identity
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