Use RAII to ensure KeyMint keyblobs deleted
If some check in a VTS test case fails, the test function may exit early
and not call CheckedDeleteKey(&some_keyblob), thus "leaking" a key blob.
This isn't normally an issue, but if the key blob happens to use a
feature that uses some secure storage (e.g. ROLLBACK_RESISTANCE or
USAGE_COUNT_LIMIT=1) then this may leak some scarse resource.
To avoid the chance of this, use an RAII holder to ensure that
manually-managed keyblobs (i.e. key blobs that are not held in the
key_blob_ member of the base test class) are always deleted.
Bug: 262212842
Test: VtsAidlKeyMintTargetTest
Change-Id: Ie8806095e249870484b9875eb660070607f339a3
diff --git a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
index a868c96..c25c9ac 100644
--- a/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
+++ b/security/keymint/aidl/vts/functional/AttestKeyTest.cpp
@@ -120,6 +120,7 @@
.SetDefaultValidity(),
{} /* attestation signing key */, &attest_key.keyBlob,
&attest_key_characteristics, &attest_key_cert_chain));
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
ASSERT_GT(attest_key_cert_chain.size(), 0);
EXPECT_EQ(attest_key_cert_chain.size(), 1);
@@ -141,8 +142,7 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
-
- CheckedDeleteKey(&attested_key_blob);
+ KeyBlobDeleter attested_deleter(keymint_, attested_key_blob);
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -174,8 +174,7 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
-
- CheckedDeleteKey(&attested_key_blob);
+ KeyBlobDeleter attested_deleter2(keymint_, attested_key_blob);
hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -207,6 +206,7 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
+ KeyBlobDeleter attested_deleter3(keymint_, attested_key_blob);
// The returned key characteristics will include CREATION_DATETIME (checked below)
// in SecurityLevel::KEYSTORE; this will be stripped out in the CheckCharacteristics()
@@ -214,9 +214,6 @@
// any SecurityLevel::KEYSTORE characteristics).
CheckCharacteristics(attested_key_blob, attested_key_characteristics);
- CheckedDeleteKey(&attested_key_blob);
- CheckedDeleteKey(&attest_key.keyBlob);
-
hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -308,6 +305,7 @@
if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
}
ASSERT_EQ(ErrorCode::OK, result);
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
EXPECT_GT(attest_key_cert_chain.size(), 1);
verify_subject_and_serial(attest_key_cert_chain[0], serial_int, subject, false);
@@ -344,9 +342,7 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
-
- CheckedDeleteKey(&attested_key_blob);
- CheckedDeleteKey(&attest_key.keyBlob);
+ KeyBlobDeleter attested_deleter(keymint_, attested_key_blob);
AuthorizationSet hw_enforced2 = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced2 = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -376,6 +372,7 @@
const int chain_size = 6;
vector<vector<uint8_t>> key_blob_list(chain_size);
vector<vector<Certificate>> cert_chain_list(chain_size);
+ vector<KeyBlobDeleter> deleters;
for (int i = 0; i < chain_size; i++) {
string sub = "attest key chaining ";
@@ -412,6 +409,7 @@
if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
}
ASSERT_EQ(ErrorCode::OK, result);
+ deleters.push_back(KeyBlobDeleter(keymint_, key_blob_list[i]));
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -437,10 +435,6 @@
EXPECT_GT(cert_chain_list[i].size(), i + 1);
verify_subject_and_serial(cert_chain_list[i][0], serial_int, subject, false);
}
-
- for (int i = 0; i < chain_size; i++) {
- CheckedDeleteKey(&key_blob_list[i]);
- }
}
/*
@@ -453,6 +447,7 @@
const int chain_size = 6;
vector<vector<uint8_t>> key_blob_list(chain_size);
vector<vector<Certificate>> cert_chain_list(chain_size);
+ vector<KeyBlobDeleter> deleters;
for (int i = 0; i < chain_size; i++) {
string sub = "Ec attest key chaining ";
@@ -489,6 +484,7 @@
if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
}
ASSERT_EQ(ErrorCode::OK, result);
+ deleters.push_back(KeyBlobDeleter(keymint_, key_blob_list[i]));
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -514,10 +510,6 @@
EXPECT_GT(cert_chain_list[i].size(), i + 1);
verify_subject_and_serial(cert_chain_list[i][0], serial_int, subject, false);
}
-
- for (int i = 0; i < chain_size; i++) {
- CheckedDeleteKey(&key_blob_list[i]);
- }
}
/*
@@ -557,6 +549,7 @@
const int chain_size = 6;
vector<vector<uint8_t>> key_blob_list(chain_size);
vector<vector<Certificate>> cert_chain_list(chain_size);
+ vector<KeyBlobDeleter> deleters;
for (int i = 0; i < chain_size; i++) {
string sub = "Alt attest key chaining ";
@@ -607,6 +600,7 @@
if (result == ErrorCode::ATTESTATION_KEYS_NOT_PROVISIONED) return;
}
ASSERT_EQ(ErrorCode::OK, result);
+ deleters.push_back(KeyBlobDeleter(keymint_, key_blob_list[i]));
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -632,10 +626,6 @@
EXPECT_GT(cert_chain_list[i].size(), i + 1);
verify_subject_and_serial(cert_chain_list[i][0], serial_int, subject, false);
}
-
- for (int i = 0; i < chain_size; i++) {
- CheckedDeleteKey(&key_blob_list[i]);
- }
}
TEST_P(AttestKeyTest, MissingChallenge) {
@@ -653,6 +643,7 @@
.SetDefaultValidity(),
{} /* attestation signing key */, &attest_key.keyBlob,
&attest_key_characteristics, &attest_key_cert_chain));
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
EXPECT_EQ(attest_key_cert_chain.size(), 1);
EXPECT_TRUE(IsSelfSigned(attest_key_cert_chain)) << "Failed on size " << size;
@@ -681,8 +672,6 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
-
- CheckedDeleteKey(&attest_key.keyBlob);
}
}
@@ -700,6 +689,7 @@
AuthorizationSetBuilder().EcdsaKey(curve).AttestKey().SetDefaultValidity(),
{} /* attestation signing key */, &attest_key.keyBlob,
&attest_key_characteristics, &attest_key_cert_chain));
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
ASSERT_GT(attest_key_cert_chain.size(), 0);
EXPECT_EQ(attest_key_cert_chain.size(), 1);
@@ -721,9 +711,9 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
+ KeyBlobDeleter attested_deleter(keymint_, attested_key_blob);
ASSERT_GT(attested_key_cert_chain.size(), 0);
- CheckedDeleteKey(&attested_key_blob);
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -752,10 +742,9 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
+ KeyBlobDeleter attested_deleter2(keymint_, attested_key_blob);
ASSERT_GT(attested_key_cert_chain.size(), 0);
- CheckedDeleteKey(&attested_key_blob);
- CheckedDeleteKey(&attest_key.keyBlob);
hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -825,6 +814,7 @@
.SetDefaultValidity(),
{} /* attestation signing key */, &attest_key.keyBlob,
&attest_key_characteristics, &attest_key_cert_chain));
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
attest_key.issuerSubjectName = make_name_from_str("Android Keystore Key");
ASSERT_GT(attest_key_cert_chain.size(), 0);
EXPECT_EQ(attest_key_cert_chain.size(), 1);
@@ -891,8 +881,7 @@
}
ASSERT_EQ(result, ErrorCode::OK);
-
- CheckedDeleteKey(&attested_key_blob);
+ KeyBlobDeleter attested_deleter(keymint_, attested_key_blob);
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -906,7 +895,6 @@
hw_enforced, SecLevel(),
attested_key_cert_chain[0].encodedCertificate));
}
- CheckedDeleteKey(&attest_key.keyBlob);
}
TEST_P(AttestKeyTest, EcdsaAttestationMismatchID) {
@@ -921,6 +909,7 @@
.SetDefaultValidity(),
{} /* attestation signing key */, &attest_key.keyBlob,
&attest_key_characteristics, &attest_key_cert_chain));
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
attest_key.issuerSubjectName = make_name_from_str("Android Keystore Key");
ASSERT_GT(attest_key_cert_chain.size(), 0);
EXPECT_EQ(attest_key_cert_chain.size(), 1);
@@ -966,7 +955,6 @@
<< "result = " << result;
device_id_attestation_vsr_check(result);
}
- CheckedDeleteKey(&attest_key.keyBlob);
}
TEST_P(AttestKeyTest, SecondIMEIAttestationIDSuccess) {
@@ -997,6 +985,7 @@
.SetDefaultValidity(),
{} /* attestation signing key */, &attest_key.keyBlob,
&attest_key_characteristics, &attest_key_cert_chain));
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
attest_key.issuerSubjectName = make_name_from_str("Android Keystore Key");
EXPECT_EQ(attest_key_cert_chain.size(), 1);
EXPECT_TRUE(IsSelfSigned(attest_key_cert_chain));
@@ -1025,11 +1014,10 @@
}
ASSERT_EQ(result, ErrorCode::OK);
+ KeyBlobDeleter attested_deleter(keymint_, attested_key_blob);
device_id_attestation_vsr_check(result);
- CheckedDeleteKey(&attested_key_blob);
-
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -1043,8 +1031,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), "challenge", "foo", sw_enforced,
hw_enforced, SecLevel(),
attested_key_cert_chain[0].encodedCertificate));
-
- CheckedDeleteKey(&attest_key.keyBlob);
}
TEST_P(AttestKeyTest, MultipleIMEIAttestationIDSuccess) {
@@ -1081,6 +1067,7 @@
.SetDefaultValidity(),
{} /* attestation signing key */, &attest_key.keyBlob,
&attest_key_characteristics, &attest_key_cert_chain));
+ KeyBlobDeleter attest_deleter(keymint_, attest_key.keyBlob);
attest_key.issuerSubjectName = make_name_from_str("Android Keystore Key");
EXPECT_EQ(attest_key_cert_chain.size(), 1);
EXPECT_TRUE(IsSelfSigned(attest_key_cert_chain));
@@ -1106,11 +1093,10 @@
}
ASSERT_EQ(result, ErrorCode::OK);
+ KeyBlobDeleter attested_deleter(keymint_, attested_key_blob);
device_id_attestation_vsr_check(result);
- CheckedDeleteKey(&attested_key_blob);
-
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(attested_key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(attested_key_characteristics);
@@ -1127,8 +1113,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), "challenge", "foo", sw_enforced,
hw_enforced, SecLevel(),
attested_key_cert_chain[0].encodedCertificate));
-
- CheckedDeleteKey(&attest_key.keyBlob);
}
INSTANTIATE_KEYMINT_AIDL_TEST(AttestKeyTest);
diff --git a/security/keymint/aidl/vts/functional/KeyBlobUpgradeTest.cpp b/security/keymint/aidl/vts/functional/KeyBlobUpgradeTest.cpp
index 4f72f67..4830422 100644
--- a/security/keymint/aidl/vts/functional/KeyBlobUpgradeTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyBlobUpgradeTest.cpp
@@ -560,7 +560,7 @@
.SetDefaultValidity(),
attest_key, &attested_key_blob, &attested_key_characteristics,
&attested_key_cert_chain));
- CheckedDeleteKey(&attested_key_blob);
+ KeyBlobDeleter(keymint_, attested_key_blob);
} else {
FAIL() << "Unexpected name: " << name;
}
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
index b55e609..b2fd08e 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp
@@ -176,6 +176,17 @@
std::string KeyMintAidlTestBase::keyblob_dir;
std::optional<bool> KeyMintAidlTestBase::expect_upgrade = std::nullopt;
+KeyBlobDeleter::~KeyBlobDeleter() {
+ if (key_blob_.empty()) {
+ return;
+ }
+ Status result = keymint_->deleteKey(key_blob_);
+ key_blob_.clear();
+ EXPECT_TRUE(result.isOk()) << result.getServiceSpecificError() << "\n";
+ ErrorCode rc = GetReturnErrorCode(result);
+ EXPECT_TRUE(rc == ErrorCode::OK || rc == ErrorCode::UNIMPLEMENTED) << result << "\n";
+}
+
uint32_t KeyMintAidlTestBase::boot_patch_level(
const vector<KeyCharacteristics>& key_characteristics) {
// The boot patchlevel is not available as a property, but should be present
@@ -229,16 +240,6 @@
return version >= 2;
}
-ErrorCode KeyMintAidlTestBase::GetReturnErrorCode(const Status& result) {
- if (result.isOk()) return ErrorCode::OK;
-
- if (result.getExceptionCode() == EX_SERVICE_SPECIFIC) {
- return static_cast<ErrorCode>(result.getServiceSpecificError());
- }
-
- return ErrorCode::UNKNOWN_ERROR;
-}
-
void KeyMintAidlTestBase::InitializeKeyMint(std::shared_ptr<IKeyMintDevice> keyMint) {
ASSERT_NE(keyMint, nullptr);
keymint_ = std::move(keyMint);
@@ -513,13 +514,9 @@
return GetReturnErrorCode(result);
}
-void KeyMintAidlTestBase::CheckedDeleteKey(vector<uint8_t>* key_blob, bool keep_key_blob) {
- ErrorCode result = DeleteKey(key_blob, keep_key_blob);
- EXPECT_TRUE(result == ErrorCode::OK || result == ErrorCode::UNIMPLEMENTED) << result << endl;
-}
-
void KeyMintAidlTestBase::CheckedDeleteKey() {
- CheckedDeleteKey(&key_blob_);
+ ErrorCode result = DeleteKey(&key_blob_, /* keep_key_blob = */ false);
+ EXPECT_TRUE(result == ErrorCode::OK || result == ErrorCode::UNIMPLEMENTED) << result << endl;
}
ErrorCode KeyMintAidlTestBase::Begin(KeyPurpose purpose, const vector<uint8_t>& key_blob,
@@ -1986,6 +1983,16 @@
return AssertionSuccess();
}
+ErrorCode GetReturnErrorCode(const Status& result) {
+ if (result.isOk()) return ErrorCode::OK;
+
+ if (result.getExceptionCode() == EX_SERVICE_SPECIFIC) {
+ return static_cast<ErrorCode>(result.getServiceSpecificError());
+ }
+
+ return ErrorCode::UNKNOWN_ERROR;
+}
+
X509_Ptr parse_cert_blob(const vector<uint8_t>& blob) {
const uint8_t* p = blob.data();
return X509_Ptr(d2i_X509(nullptr /* allocate new */, &p, blob.size()));
diff --git a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
index 415a83e..aa3069a 100644
--- a/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
+++ b/security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h
@@ -57,6 +57,18 @@
const string FEATURE_KEYSTORE_APP_ATTEST_KEY = "android.hardware.keystore.app_attest_key";
const string FEATURE_STRONGBOX_KEYSTORE = "android.hardware.strongbox_keystore";
+// RAII class to ensure that a keyblob is deleted regardless of how a test exits.
+class KeyBlobDeleter {
+ public:
+ KeyBlobDeleter(const shared_ptr<IKeyMintDevice>& keymint, const vector<uint8_t>& key_blob)
+ : keymint_(keymint), key_blob_(key_blob) {}
+ ~KeyBlobDeleter();
+
+ private:
+ shared_ptr<IKeyMintDevice> keymint_;
+ vector<uint8_t> key_blob_;
+};
+
class KeyMintAidlTestBase : public ::testing::TestWithParam<string> {
public:
struct KeyData {
@@ -94,8 +106,6 @@
bool Curve25519Supported();
- ErrorCode GetReturnErrorCode(const Status& result);
-
ErrorCode GenerateKey(const AuthorizationSet& key_desc, vector<uint8_t>* key_blob,
vector<KeyCharacteristics>* key_characteristics) {
return GenerateKey(key_desc, std::nullopt /* attest_key */, key_blob, key_characteristics,
@@ -159,7 +169,6 @@
ErrorCode DestroyAttestationIds();
- void CheckedDeleteKey(vector<uint8_t>* key_blob, bool keep_key_blob = false);
void CheckedDeleteKey();
ErrorCode Begin(KeyPurpose purpose, const vector<uint8_t>& key_blob,
@@ -431,6 +440,8 @@
::testing::AssertionResult ChainSignaturesAreValid(const vector<Certificate>& chain,
bool strict_issuer_check = true);
+ErrorCode GetReturnErrorCode(const Status& result);
+
#define INSTANTIATE_KEYMINT_AIDL_TEST(name) \
INSTANTIATE_TEST_SUITE_P(PerInstance, name, \
testing::ValuesIn(KeyMintAidlTestBase::build_params()), \
diff --git a/security/keymint/aidl/vts/functional/KeyMintTest.cpp b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
index c54a2c9..c534a37 100644
--- a/security/keymint/aidl/vts/functional/KeyMintTest.cpp
+++ b/security/keymint/aidl/vts/functional/KeyMintTest.cpp
@@ -693,6 +693,7 @@
builder.Authorization(TAG_MIN_MAC_LENGTH, 128);
}
ASSERT_EQ(ErrorCode::OK, GenerateKey(builder, &key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
EXPECT_GT(key_blob.size(), 0U);
CheckSymmetricParams(key_characteristics);
@@ -703,8 +704,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::AES));
EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
<< "Key size " << key_size << "missing";
-
- CheckedDeleteKey(&key_blob);
}
}
}
@@ -877,6 +876,7 @@
.Authorization(TAG_NO_AUTH_REQUIRED)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
EXPECT_GT(key_blob.size(), 0U);
CheckSymmetricParams(key_characteristics);
@@ -887,8 +887,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::TRIPLE_DES));
EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
<< "Key size " << key_size << "missing";
-
- CheckedDeleteKey(&key_blob);
}
}
}
@@ -924,6 +922,7 @@
.AttestationApplicationId(app_id)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
EXPECT_GT(key_blob.size(), 0U);
CheckSymmetricParams(key_characteristics);
@@ -934,8 +933,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::TRIPLE_DES));
EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
<< "Key size " << key_size << "missing";
-
- CheckedDeleteKey(&key_blob);
}
}
}
@@ -1003,6 +1000,7 @@
.Padding(PaddingMode::NONE)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -1014,8 +1012,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
<< "Key size " << key_size << "missing";
EXPECT_TRUE(crypto_params.Contains(TAG_RSA_PUBLIC_EXPONENT, 65537U));
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1139,6 +1135,7 @@
}
}
ASSERT_EQ(ErrorCode::OK, result);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
CheckCharacteristics(key_blob, key_characteristics);
@@ -1159,8 +1156,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, //
sw_enforced, hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1214,6 +1209,7 @@
.Authorization(TAG_NO_AUTH_REQUIRED)
.SetDefaultValidity(),
attestation_key, &key_blob, &key_characteristics, &cert_chain_));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -1240,8 +1236,6 @@
ASSERT_TRUE(X509_verify(key_cert.get(), signing_pubkey.get()))
<< "Verification of attested certificate failed "
<< "OpenSSL error string: " << ERR_error_string(ERR_get_error(), NULL);
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1294,6 +1288,7 @@
.Authorization(TAG_NO_AUTH_REQUIRED)
.SetDefaultValidity(),
attestation_key, &key_blob, &key_characteristics, &cert_chain_));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -1318,8 +1313,6 @@
ASSERT_TRUE(X509_verify(key_cert.get(), signing_pubkey.get()))
<< "Verification of attested certificate failed "
<< "OpenSSL error string: " << ERR_error_string(ERR_get_error(), NULL);
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1365,6 +1358,7 @@
}
}
ASSERT_EQ(ErrorCode::OK, result);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
AuthorizationSet auths;
@@ -1405,8 +1399,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, //
sw_enforced, hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
/*
@@ -1437,6 +1429,7 @@
.Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -1452,8 +1445,6 @@
ASSERT_EQ(cert_chain_.size(), 1);
verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1518,6 +1509,7 @@
.Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -1534,8 +1526,6 @@
verify_subject_and_serial(cert_chain_[0], serial_int, subject, false);
EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
ASSERT_EQ(cert_chain_.size(), 1);
-
- CheckedDeleteKey(&key_blob);
}
/*
@@ -1556,6 +1546,7 @@
.Authorization(TAG_USAGE_COUNT_LIMIT, 1)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -1575,8 +1566,6 @@
}
EXPECT_TRUE(auths.Contains(TAG_USAGE_COUNT_LIMIT, 1U))
<< "key usage count limit " << 1U << " missing";
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1625,6 +1614,7 @@
}
}
ASSERT_EQ(ErrorCode::OK, result);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -1655,8 +1645,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, //
sw_enforced, hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1726,6 +1714,7 @@
.Digest(Digest::NONE)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
CheckCharacteristics(key_blob, key_characteristics);
@@ -1734,8 +1723,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::EC));
EXPECT_TRUE(crypto_params.Contains(TAG_EC_CURVE, curve)) << "Curve " << curve << "missing";
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1759,6 +1746,8 @@
.SetDefaultValidity(),
&key_blob, &key_characteristics);
ASSERT_EQ(result, ErrorCode::OK);
+ KeyBlobDeleter deleter(keymint_, key_blob);
+
ASSERT_GT(key_blob.size(), 0U);
EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
@@ -1771,8 +1760,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::EC));
EXPECT_TRUE(crypto_params.Contains(TAG_EC_CURVE, curve)) << "Curve " << curve << "missing";
-
- CheckedDeleteKey(&key_blob);
}
/*
@@ -1879,6 +1866,7 @@
}
}
ASSERT_EQ(ErrorCode::OK, result);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
CheckCharacteristics(key_blob, key_characteristics);
@@ -1897,8 +1885,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, //
sw_enforced, hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -1936,6 +1922,7 @@
.SetDefaultValidity(),
&key_blob, &key_characteristics);
ASSERT_EQ(ErrorCode::OK, result);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
CheckCharacteristics(key_blob, key_characteristics);
@@ -1954,8 +1941,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, //
sw_enforced, hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
/*
@@ -2024,6 +2009,7 @@
}
}
ASSERT_EQ(result, ErrorCode::OK);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
@@ -2043,8 +2029,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, sw_enforced,
hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
// Collection of invalid attestation ID tags.
@@ -2170,6 +2154,7 @@
continue;
}
ASSERT_EQ(result, ErrorCode::OK);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
@@ -2189,8 +2174,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, sw_enforced,
hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -2345,6 +2328,7 @@
}
}
ASSERT_EQ(result, ErrorCode::OK);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
EXPECT_TRUE(ChainSignaturesAreValid(cert_chain_));
@@ -2364,8 +2348,6 @@
ASSERT_EQ(std::search(cert_chain_[0].encodedCertificate.begin(),
cert_chain_[0].encodedCertificate.end(), needle.begin(), needle.end()),
cert_chain_[0].encodedCertificate.end());
-
- CheckedDeleteKey(&key_blob);
}
/*
@@ -2393,6 +2375,7 @@
.Authorization(TAG_CERTIFICATE_SUBJECT, subject_der)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
CheckCharacteristics(key_blob, key_characteristics);
@@ -2408,8 +2391,6 @@
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -2463,6 +2444,7 @@
.AttestationApplicationId(app_id)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -2478,8 +2460,6 @@
AuthorizationSet hw_enforced = HwEnforcedAuthorizations(key_characteristics);
AuthorizationSet sw_enforced = SwEnforcedAuthorizations(key_characteristics);
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -2521,6 +2501,7 @@
}
}
ASSERT_EQ(ErrorCode::OK, result);
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
CheckCharacteristics(key_blob, key_characteristics);
@@ -2538,8 +2519,6 @@
EXPECT_TRUE(verify_attestation_record(AidlVersion(), challenge, app_id, //
sw_enforced, hw_enforced, SecLevel(),
cert_chain_[0].encodedCertificate));
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -2560,6 +2539,7 @@
.Authorization(TAG_USAGE_COUNT_LIMIT, 1)
.SetDefaultValidity(),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -2577,8 +2557,6 @@
}
EXPECT_TRUE(auths.Contains(TAG_USAGE_COUNT_LIMIT, 1U))
<< "key usage count limit " << 1U << " missing";
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -2710,6 +2688,7 @@
AuthorizationSetBuilder().HmacKey(key_size).Digest(digest).Authorization(
TAG_MIN_MAC_LENGTH, 128),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -2719,8 +2698,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::HMAC));
EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
<< "Key size " << key_size << "missing";
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -2746,6 +2723,7 @@
.AttestationApplicationId(app_id)
.Authorization(TAG_MIN_MAC_LENGTH, 128),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
ASSERT_EQ(cert_chain_.size(), 0);
@@ -2756,8 +2734,6 @@
EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::HMAC));
EXPECT_TRUE(crypto_params.Contains(TAG_KEY_SIZE, key_size))
<< "Key size " << key_size << "missing";
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -2779,6 +2755,7 @@
.Authorization(TAG_MIN_MAC_LENGTH, 128)
.Authorization(TAG_USAGE_COUNT_LIMIT, 1),
&key_blob, &key_characteristics));
+ KeyBlobDeleter deleter(keymint_, key_blob);
ASSERT_GT(key_blob.size(), 0U);
CheckBaseParams(key_characteristics);
@@ -2796,8 +2773,6 @@
}
EXPECT_TRUE(auths.Contains(TAG_USAGE_COUNT_LIMIT, 1U))
<< "key usage count limit " << 1U << " missing";
-
- CheckedDeleteKey(&key_blob);
}
}
@@ -3891,6 +3866,7 @@
.Digest(Digest::SHA_2_256)
.Authorization(TAG_MIN_MAC_LENGTH, 160),
KeyFormat::RAW, key_material, &signing_key, &signing_key_chars));
+ KeyBlobDeleter sign_deleter(keymint_, signing_key);
EXPECT_EQ(ErrorCode::OK,
ImportKey(AuthorizationSetBuilder()
.Authorization(TAG_NO_AUTH_REQUIRED)
@@ -3899,6 +3875,7 @@
.Digest(Digest::SHA_2_256)
.Authorization(TAG_MIN_MAC_LENGTH, 160),
KeyFormat::RAW, key_material, &verification_key, &verification_key_chars));
+ KeyBlobDeleter verify_deleter(keymint_, verification_key);
string message = "This is a message.";
string signature = SignMessage(
@@ -3914,9 +3891,6 @@
// Verification key should work.
VerifyMessage(verification_key, message, signature,
AuthorizationSetBuilder().Digest(Digest::SHA_2_256));
-
- CheckedDeleteKey(&signing_key);
- CheckedDeleteKey(&verification_key);
}
/*
@@ -3937,6 +3911,7 @@
.Digest(Digest::SHA_2_256)
.Authorization(TAG_MIN_MAC_LENGTH, 160),
KeyFormat::RAW, key_material, &signing_key, &signing_key_chars));
+ KeyBlobDeleter sign_deleter(keymint_, signing_key);
EXPECT_EQ(ErrorCode::OK,
ImportKey(AuthorizationSetBuilder()
.Authorization(TAG_NO_AUTH_REQUIRED)
@@ -3945,6 +3920,7 @@
.Digest(Digest::SHA_2_256)
.Authorization(TAG_MIN_MAC_LENGTH, 160),
KeyFormat::RAW, key_material, &verification_key, &verification_key_chars));
+ KeyBlobDeleter verify_deleter(keymint_, verification_key);
string message = "This is a message.";
string signature = SignMessage(
@@ -3966,9 +3942,6 @@
signature[0] += 1; // Corrupt a signature
EXPECT_EQ(ErrorCode::VERIFICATION_FAILED, Finish(message, signature, &output));
-
- CheckedDeleteKey(&signing_key);
- CheckedDeleteKey(&verification_key);
}
INSTANTIATE_KEYMINT_AIDL_TEST(VerificationOperationsTest);
@@ -8497,16 +8470,16 @@
// Early boot keys can be created after early boot.
auto [aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData] =
CreateTestKeys(TAG_EARLY_BOOT_ONLY, ErrorCode::OK);
+ KeyBlobDeleter aes_deleter(keymint_, aesKeyData.blob);
+ KeyBlobDeleter hmac_deleter(keymint_, hmacKeyData.blob);
+ KeyBlobDeleter rsa_deleter(keymint_, rsaKeyData.blob);
+ KeyBlobDeleter ecdsa_deleter(keymint_, ecdsaKeyData.blob);
for (const auto& keyData : {aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData}) {
ASSERT_GT(keyData.blob.size(), 0U);
AuthorizationSet crypto_params = SecLevelAuthorizations(keyData.characteristics);
EXPECT_TRUE(crypto_params.Contains(TAG_EARLY_BOOT_ONLY)) << crypto_params;
}
- CheckedDeleteKey(&aesKeyData.blob);
- CheckedDeleteKey(&hmacKeyData.blob);
- CheckedDeleteKey(&rsaKeyData.blob);
- CheckedDeleteKey(&ecdsaKeyData.blob);
}
/*
@@ -8520,6 +8493,10 @@
builder->AttestationChallenge("challenge");
builder->AttestationApplicationId("app_id");
});
+ KeyBlobDeleter aes_deleter(keymint_, aesKeyData.blob);
+ KeyBlobDeleter hmac_deleter(keymint_, hmacKeyData.blob);
+ KeyBlobDeleter rsa_deleter(keymint_, rsaKeyData.blob);
+ KeyBlobDeleter ecdsa_deleter(keymint_, ecdsaKeyData.blob);
for (const auto& keyData : {aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData}) {
// Strongbox may not support factory attestation. Key creation might fail with
@@ -8531,14 +8508,6 @@
AuthorizationSet crypto_params = SecLevelAuthorizations(keyData.characteristics);
EXPECT_TRUE(crypto_params.Contains(TAG_EARLY_BOOT_ONLY)) << crypto_params;
}
- CheckedDeleteKey(&aesKeyData.blob);
- CheckedDeleteKey(&hmacKeyData.blob);
- if (rsaKeyData.blob.size() != 0U) {
- CheckedDeleteKey(&rsaKeyData.blob);
- }
- if (ecdsaKeyData.blob.size() != 0U) {
- CheckedDeleteKey(&ecdsaKeyData.blob);
- }
}
/*
@@ -8583,6 +8552,11 @@
TEST_P(EarlyBootKeyTest, DISABLED_FullTest) {
auto [aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData] =
CreateTestKeys(TAG_EARLY_BOOT_ONLY, ErrorCode::OK);
+ KeyBlobDeleter aes_deleter(keymint_, aesKeyData.blob);
+ KeyBlobDeleter hmac_deleter(keymint_, hmacKeyData.blob);
+ KeyBlobDeleter rsa_deleter(keymint_, rsaKeyData.blob);
+ KeyBlobDeleter ecdsa_deleter(keymint_, ecdsaKeyData.blob);
+
// TAG_EARLY_BOOT_ONLY should be in hw-enforced.
EXPECT_TRUE(HwEnforcedAuthorizations(aesKeyData.characteristics).Contains(TAG_EARLY_BOOT_ONLY));
EXPECT_TRUE(
@@ -8607,19 +8581,13 @@
EXPECT_EQ(ErrorCode::EARLY_BOOT_ENDED, UseRsaKey(rsaKeyData.blob));
EXPECT_EQ(ErrorCode::EARLY_BOOT_ENDED, UseEcdsaKey(ecdsaKeyData.blob));
- CheckedDeleteKey(&aesKeyData.blob);
- CheckedDeleteKey(&hmacKeyData.blob);
- CheckedDeleteKey(&rsaKeyData.blob);
- CheckedDeleteKey(&ecdsaKeyData.blob);
-
// Should not be able to create new keys
- std::tie(aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData) =
+ auto [aesKeyData2, hmacKeyData2, rsaKeyData2, ecdsaKeyData2] =
CreateTestKeys(TAG_EARLY_BOOT_ONLY, ErrorCode::EARLY_BOOT_ENDED);
-
- CheckedDeleteKey(&aesKeyData.blob);
- CheckedDeleteKey(&hmacKeyData.blob);
- CheckedDeleteKey(&rsaKeyData.blob);
- CheckedDeleteKey(&ecdsaKeyData.blob);
+ KeyBlobDeleter aes_deleter2(keymint_, aesKeyData2.blob);
+ KeyBlobDeleter hmac_deleter2(keymint_, hmacKeyData2.blob);
+ KeyBlobDeleter rsa_deleter2(keymint_, rsaKeyData2.blob);
+ KeyBlobDeleter ecdsa_deleter2(keymint_, ecdsaKeyData2.blob);
}
INSTANTIATE_KEYMINT_AIDL_TEST(EarlyBootKeyTest);
@@ -8637,6 +8605,10 @@
TEST_P(UnlockedDeviceRequiredTest, DISABLED_KeysBecomeUnusable) {
auto [aesKeyData, hmacKeyData, rsaKeyData, ecdsaKeyData] =
CreateTestKeys(TAG_UNLOCKED_DEVICE_REQUIRED, ErrorCode::OK);
+ KeyBlobDeleter aes_deleter(keymint_, aesKeyData.blob);
+ KeyBlobDeleter hmac_deleter(keymint_, hmacKeyData.blob);
+ KeyBlobDeleter rsa_deleter(keymint_, rsaKeyData.blob);
+ KeyBlobDeleter ecdsa_deleter(keymint_, ecdsaKeyData.blob);
EXPECT_EQ(ErrorCode::OK, UseAesKey(aesKeyData.blob));
EXPECT_EQ(ErrorCode::OK, UseHmacKey(hmacKeyData.blob));
@@ -8650,11 +8622,6 @@
EXPECT_EQ(ErrorCode::DEVICE_LOCKED, UseHmacKey(hmacKeyData.blob));
EXPECT_EQ(ErrorCode::DEVICE_LOCKED, UseRsaKey(rsaKeyData.blob));
EXPECT_EQ(ErrorCode::DEVICE_LOCKED, UseEcdsaKey(ecdsaKeyData.blob));
-
- CheckedDeleteKey(&aesKeyData.blob);
- CheckedDeleteKey(&hmacKeyData.blob);
- CheckedDeleteKey(&rsaKeyData.blob);
- CheckedDeleteKey(&ecdsaKeyData.blob);
}
INSTANTIATE_KEYMINT_AIDL_TEST(UnlockedDeviceRequiredTest);