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Commit 8bd88f4d authored by David Drysdale's avatar David Drysdale Committed by Automerger Merge Worker
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Merge "KeyMint VTS: test getKeyCharacteristics()" into sc-dev am: 339b9017 

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/14817092

Change-Id: Ie9a8e9da14c57fd50988ee55a9176e64cbae87b1
parents c95f85ae 339b9017

security/keymint/aidl/vts/functional/AttestKeyTest.cpp

+7 −0
Original line number Diff line number Diff line
@@ -141,11 +141,18 @@ TEST_P(AttestKeyTest, AllRsaSizes) { 
                              attest_key, &attested_key_blob, &attested_key_characteristics,

                              &attested_key_cert_chain));



        // The returned key characteristics will include CREATION_DATETIME (checked below)

        // in SecurityLevel::KEYSTORE; this will be stripped out in the CheckCharacteristics()

        // call below, to match what getKeyCharacteristics() returns (which doesn't include

        // 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);



        // The client-specified CREATION_DATETIME should be in sw_enforced.

        // Its presence will also trigger verify_attestation_record() to check that it

        // is in the attestation extension with a matching value.

security/keymint/aidl/vts/functional/KeyMintAidlTestBase.cpp

+68 −0
Original line number Diff line number Diff line
@@ -142,6 +142,15 @@ AuthorizationSet filtered_tags(const AuthorizationSet& set) { 
    return filtered;

}



// Remove any SecurityLevel::KEYSTORE entries from a list of key characteristics.

void strip_keystore_tags(vector<KeyCharacteristics>* characteristics) {

    characteristics->erase(std::remove_if(characteristics->begin(), characteristics->end(),

                                          [](const auto& entry) {

                                              return entry.securityLevel == SecurityLevel::KEYSTORE;

                                          }),

                           characteristics->end());

}



string x509NameToStr(X509_NAME* name) {

    char* s = X509_NAME_oneline(name, nullptr, 0);

    string retval(s);
@@ -320,6 +329,65 @@ ErrorCode KeyMintAidlTestBase::ImportWrappedKey(string wrapped_key, string wrapp 
    return GetReturnErrorCode(result);

}



ErrorCode KeyMintAidlTestBase::GetCharacteristics(const vector<uint8_t>& key_blob,

                                                  const vector<uint8_t>& app_id,

                                                  const vector<uint8_t>& app_data,

                                                  vector<KeyCharacteristics>* key_characteristics) {

    Status result =

            keymint_->getKeyCharacteristics(key_blob, app_id, app_data, key_characteristics);

    return GetReturnErrorCode(result);

}



ErrorCode KeyMintAidlTestBase::GetCharacteristics(const vector<uint8_t>& key_blob,

                                                  vector<KeyCharacteristics>* key_characteristics) {

    vector<uint8_t> empty_app_id, empty_app_data;

    return GetCharacteristics(key_blob, empty_app_id, empty_app_data, key_characteristics);

}



void KeyMintAidlTestBase::CheckCharacteristics(

        const vector<uint8_t>& key_blob,

        const vector<KeyCharacteristics>& generate_characteristics) {

    // Any key characteristics that were in SecurityLevel::KEYSTORE when returned from

    // generateKey() should be excluded, as KeyMint will have no record of them.

    // This applies to CREATION_DATETIME in particular.

    vector<KeyCharacteristics> expected_characteristics(generate_characteristics);

    strip_keystore_tags(&expected_characteristics);



    vector<KeyCharacteristics> retrieved;

    ASSERT_EQ(ErrorCode::OK, GetCharacteristics(key_blob, &retrieved));

    EXPECT_EQ(expected_characteristics, retrieved);

}



void KeyMintAidlTestBase::CheckAppIdCharacteristics(

        const vector<uint8_t>& key_blob, std::string_view app_id_string,

        std::string_view app_data_string,

        const vector<KeyCharacteristics>& generate_characteristics) {

    // Exclude any SecurityLevel::KEYSTORE characteristics for comparisons.

    vector<KeyCharacteristics> expected_characteristics(generate_characteristics);

    strip_keystore_tags(&expected_characteristics);



    vector<uint8_t> app_id(app_id_string.begin(), app_id_string.end());

    vector<uint8_t> app_data(app_data_string.begin(), app_data_string.end());

    vector<KeyCharacteristics> retrieved;

    ASSERT_EQ(ErrorCode::OK, GetCharacteristics(key_blob, app_id, app_data, &retrieved));

    EXPECT_EQ(expected_characteristics, retrieved);



    // Check that key characteristics can't be retrieved if the app ID or app data is missing.

    vector<uint8_t> empty;

    vector<KeyCharacteristics> not_retrieved;

    EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB,

              GetCharacteristics(key_blob, empty, app_data, &not_retrieved));

    EXPECT_EQ(not_retrieved.size(), 0);



    EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB,

              GetCharacteristics(key_blob, app_id, empty, &not_retrieved));

    EXPECT_EQ(not_retrieved.size(), 0);



    EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB,

              GetCharacteristics(key_blob, empty, empty, &not_retrieved));

    EXPECT_EQ(not_retrieved.size(), 0);

}



ErrorCode KeyMintAidlTestBase::DeleteKey(vector<uint8_t>* key_blob, bool keep_key_blob) {

    Status result = keymint_->deleteKey(*key_blob);

    if (!keep_key_blob) {

security/keymint/aidl/vts/functional/KeyMintAidlTestBase.h

+14 −0
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 


#pragma once



#include <string_view>



#include <aidl/Gtest.h>

#include <aidl/Vintf.h>

#include <binder/IServiceManager.h>
@@ -104,6 +106,18 @@ class KeyMintAidlTestBase : public ::testing::TestWithParam<string> { 
                                unwrapping_params, 0 /* password_sid */, 0 /* biometric_sid */);

    }



    ErrorCode GetCharacteristics(const vector<uint8_t>& key_blob, const vector<uint8_t>& app_id,

                                 const vector<uint8_t>& app_data,

                                 vector<KeyCharacteristics>* key_characteristics);

    ErrorCode GetCharacteristics(const vector<uint8_t>& key_blob,

                                 vector<KeyCharacteristics>* key_characteristics);



    void CheckCharacteristics(const vector<uint8_t>& key_blob,

                              const vector<KeyCharacteristics>& generate_characteristics);

    void CheckAppIdCharacteristics(const vector<uint8_t>& key_blob, std::string_view app_id_string,

                                   std::string_view app_data_string,

                                   const vector<KeyCharacteristics>& generate_characteristics);



    ErrorCode DeleteKey(vector<uint8_t>* key_blob, bool keep_key_blob = false);

    ErrorCode DeleteKey(bool keep_key_blob = false);

security/keymint/aidl/vts/functional/KeyMintTest.cpp

+25 −0
Original line number Diff line number Diff line
@@ -560,6 +560,7 @@ TEST_P(NewKeyGenerationTest, Aes) { 


                EXPECT_GT(key_blob.size(), 0U);

                CheckSymmetricParams(key_characteristics);

                CheckCharacteristics(key_blob, key_characteristics);



                AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -742,6 +743,7 @@ TEST_P(NewKeyGenerationTest, TripleDes) { 


                EXPECT_GT(key_blob.size(), 0U);

                CheckSymmetricParams(key_characteristics);

                CheckCharacteristics(key_blob, key_characteristics);



                AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -788,6 +790,7 @@ TEST_P(NewKeyGenerationTest, TripleDesWithAttestation) { 


                EXPECT_GT(key_blob.size(), 0U);

                CheckSymmetricParams(key_characteristics);

                CheckCharacteristics(key_blob, key_characteristics);



                AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -865,6 +868,7 @@ TEST_P(NewKeyGenerationTest, Rsa) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -911,6 +915,7 @@ TEST_P(NewKeyGenerationTest, RsaWithAttestation) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -978,6 +983,7 @@ TEST_P(NewKeyGenerationTest, RsaWithRpkAttestation) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1108,6 +1114,7 @@ TEST_P(NewKeyGenerationTest, RsaWithSelfSign) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1176,6 +1183,7 @@ TEST_P(NewKeyGenerationTest, RsaWithAttestationAppIdIgnored) { 


    ASSERT_GT(key_blob.size(), 0U);

    CheckBaseParams(key_characteristics);

    CheckCharacteristics(key_blob, key_characteristics);



    AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1211,6 +1219,7 @@ TEST_P(NewKeyGenerationTest, LimitedUsageRsa) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1266,6 +1275,7 @@ TEST_P(NewKeyGenerationTest, LimitedUsageRsaWithAttestation) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1362,6 +1372,7 @@ TEST_P(NewKeyGenerationTest, Ecdsa) { 
                                             &key_blob, &key_characteristics));

        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1405,6 +1416,7 @@ TEST_P(NewKeyGenerationTest, EcdsaAttestation) { 
                              &key_blob, &key_characteristics));

        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1452,6 +1464,7 @@ TEST_P(NewKeyGenerationTest, EcdsaSelfSignAttestation) { 
                              &key_blob, &key_characteristics));

        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1511,6 +1524,7 @@ TEST_P(NewKeyGenerationTest, EcdsaIgnoreAppId) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1555,6 +1569,7 @@ TEST_P(NewKeyGenerationTest, AttestationApplicationIDLengthProperlyEncoded) { 
                                             &key_blob, &key_characteristics));

        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1594,6 +1609,7 @@ TEST_P(NewKeyGenerationTest, LimitedUsageEcdsa) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);
@@ -1726,6 +1742,7 @@ TEST_P(NewKeyGenerationTest, Hmac) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);

        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::HMAC));
@@ -1761,6 +1778,7 @@ TEST_P(NewKeyGenerationTest, HmacNoAttestation) { 
        ASSERT_GT(key_blob.size(), 0U);

        ASSERT_EQ(cert_chain_.size(), 0);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);

        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::HMAC));
@@ -1791,6 +1809,7 @@ TEST_P(NewKeyGenerationTest, LimitedUsageHmac) { 


        ASSERT_GT(key_blob.size(), 0U);

        CheckBaseParams(key_characteristics);

        CheckCharacteristics(key_blob, key_characteristics);



        AuthorizationSet crypto_params = SecLevelAuthorizations(key_characteristics);

        EXPECT_TRUE(crypto_params.Contains(TAG_ALGORITHM, Algorithm::HMAC));
@@ -2044,6 +2063,9 @@ TEST_P(SigningOperationsTest, RsaUseRequiresCorrectAppIdAppData) { 
                                                 .Authorization(TAG_APPLICATION_ID, "clientid")

                                                 .Authorization(TAG_APPLICATION_DATA, "appdata")

                                                 .SetDefaultValidity()));



    CheckAppIdCharacteristics(key_blob_, "clientid", "appdata", key_characteristics_);



    EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB,

              Begin(KeyPurpose::SIGN,

                    AuthorizationSetBuilder().Digest(Digest::NONE).Padding(PaddingMode::NONE)));
@@ -2558,6 +2580,9 @@ TEST_P(SigningOperationsTest, EcUseRequiresCorrectAppIdAppData) { 
                                                 .Authorization(TAG_APPLICATION_ID, "clientid")

                                                 .Authorization(TAG_APPLICATION_DATA, "appdata")

                                                 .SetDefaultValidity()));



    CheckAppIdCharacteristics(key_blob_, "clientid", "appdata", key_characteristics_);



    EXPECT_EQ(ErrorCode::INVALID_KEY_BLOB,

              Begin(KeyPurpose::SIGN, AuthorizationSetBuilder().Digest(Digest::NONE)));

    AbortIfNeeded();