| // Copyright 2022 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cryptohome/auth_blocks/auth_block_utility_impl.h" |
| |
| #include <memory> |
| #include <optional> |
| #include <string> |
| #include <utility> |
| #include <variant> |
| |
| #include <base/files/file_path.h> |
| #include <base/files/scoped_temp_dir.h> |
| #include <base/test/bind.h> |
| #include <brillo/cryptohome.h> |
| #include <brillo/secure_blob.h> |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| #include <libhwsec-foundation/crypto/scrypt.h> |
| #include <libhwsec-foundation/error/testing_helper.h> |
| |
| #include "cryptohome/auth_blocks/auth_block.h" |
| #include "cryptohome/auth_blocks/auth_block_state.h" |
| #include "cryptohome/auth_blocks/auth_block_type.h" |
| #include "cryptohome/auth_blocks/challenge_credential_auth_block.h" |
| #include "cryptohome/auth_blocks/double_wrapped_compat_auth_block.h" |
| #include "cryptohome/auth_blocks/libscrypt_compat_auth_block.h" |
| #include "cryptohome/auth_blocks/pin_weaver_auth_block.h" |
| #include "cryptohome/auth_blocks/tpm_bound_to_pcr_auth_block.h" |
| #include "cryptohome/auth_blocks/tpm_ecc_auth_block.h" |
| #include "cryptohome/auth_blocks/tpm_not_bound_to_pcr_auth_block.h" |
| #include "cryptohome/challenge_credentials/mock_challenge_credentials_helper.h" |
| #include "cryptohome/credentials.h" |
| #include "cryptohome/crypto.h" |
| #include "cryptohome/crypto_error.h" |
| #include "cryptohome/fake_le_credential_backend.h" |
| #include "cryptohome/filesystem_layout.h" |
| #include "cryptohome/key_objects.h" |
| #include "cryptohome/le_credential_manager_impl.h" |
| #include "cryptohome/mock_cryptohome_keys_manager.h" |
| #include "cryptohome/mock_key_challenge_service.h" |
| #include "cryptohome/mock_keyset_management.h" |
| #include "cryptohome/mock_le_credential_manager.h" |
| #include "cryptohome/mock_platform.h" |
| #include "cryptohome/mock_tpm.h" |
| #include "cryptohome/mock_vault_keyset.h" |
| #include "cryptohome/vault_keyset.h" |
| |
| using ::cryptohome::error::CryptohomeCryptoError; |
| using ::cryptohome::error::CryptohomeLECredError; |
| using ::hwsec::TPMErrorBase; |
| using ::hwsec_foundation::DeriveSecretsScrypt; |
| using ::hwsec_foundation::error::testing::ReturnError; |
| using ::testing::_; |
| using ::testing::ByMove; |
| using ::testing::DoAll; |
| using ::testing::Exactly; |
| using ::testing::Mock; |
| using ::testing::NiceMock; |
| using ::testing::Return; |
| using ::testing::SaveArg; |
| using ::testing::SetArgPointee; |
| |
| namespace cryptohome { |
| |
| namespace { |
| constexpr char kUser[] = "Test User"; |
| } // namespace |
| |
| class AuthBlockUtilityImplTest : public ::testing::Test { |
| public: |
| AuthBlockUtilityImplTest() : crypto_(&platform_) {} |
| AuthBlockUtilityImplTest(const AuthBlockUtilityImplTest&) = delete; |
| AuthBlockUtilityImplTest& operator=(const AuthBlockUtilityImplTest&) = delete; |
| virtual ~AuthBlockUtilityImplTest() {} |
| |
| void SetUp() override { |
| // Setup salt for brillo functions. |
| keyset_management_ = std::make_unique<KeysetManagement>( |
| &platform_, &crypto_, std::make_unique<VaultKeysetFactory>()); |
| system_salt_ = |
| brillo::SecureBlob(*brillo::cryptohome::home::GetSystemSalt()); |
| } |
| |
| protected: |
| MockPlatform platform_; |
| Crypto crypto_; |
| brillo::SecureBlob system_salt_; |
| NiceMock<MockCryptohomeKeysManager> cryptohome_keys_manager_; |
| NiceMock<MockTpm> tpm_; |
| std::unique_ptr<KeysetManagement> keyset_management_; |
| std::unique_ptr<AuthBlockUtilityImpl> auth_block_utility_impl_; |
| NiceMock<MockChallengeCredentialsHelper> challenge_credentials_helper_; |
| }; |
| |
| // Test that CreateKeyBlobsWithAuthBlock creates AuthBlockState and KeyBlobs |
| // with PinWeaverAuthBlock when the AuthBlock type is low entropy credential. |
| TEST_F(AuthBlockUtilityImplTest, CreatePinweaverAuthBlockTest) { |
| // Setup mock expectations and test inputs for low entropy AuthBlock. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| brillo::SecureBlob reset_secret(32, 'S'); |
| brillo::SecureBlob le_secret; |
| |
| MockLECredentialManager* le_cred_manager = new MockLECredentialManager(); |
| |
| EXPECT_CALL(*le_cred_manager, InsertCredential(_, _, _, _, _, _)) |
| .WillOnce( |
| DoAll(SaveArg<0>(&le_secret), ReturnError<CryptohomeLECredError>())); |
| crypto_.set_le_manager_for_testing( |
| std::unique_ptr<cryptohome::LECredentialManager>(le_cred_manager)); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| AuthBlockState out_state; |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->CreateKeyBlobsWithAuthBlock(AuthBlockType::kPinWeaver, |
| credentials, reset_secret, |
| out_state, out_key_blobs) |
| .ok()); |
| |
| // Verify that a PinWeaver AuthBlock is generated. |
| EXPECT_TRUE(std::holds_alternative<PinWeaverAuthBlockState>(out_state.state)); |
| auto& pinweaver_state = std::get<PinWeaverAuthBlockState>(out_state.state); |
| EXPECT_TRUE(pinweaver_state.salt.has_value()); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlock derives KeyBlobs with |
| // PinWeaverAuthBlock type when the Authblock type is low entropy credential. |
| TEST_F(AuthBlockUtilityImplTest, DerivePinWeaverAuthBlock) { |
| // Setup mock expectations and test inputs for low entropy AuthBlock. |
| brillo::SecureBlob passkey(20, 'C'); |
| Credentials credentials(kUser, passkey); |
| brillo::SecureBlob le_secret(32); |
| brillo::SecureBlob chaps_iv(16, 'F'); |
| brillo::SecureBlob fek_iv(16, 'X'); |
| brillo::SecureBlob salt(system_salt_); |
| |
| MockLECredentialManager* le_cred_manager = new MockLECredentialManager(); |
| |
| crypto_.set_le_manager_for_testing( |
| std::unique_ptr<cryptohome::LECredentialManager>(le_cred_manager)); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| ASSERT_TRUE(DeriveSecretsScrypt(passkey, salt, {&le_secret})); |
| |
| ON_CALL(*le_cred_manager, CheckCredential(_, _, _, _)) |
| .WillByDefault(ReturnError<CryptohomeLECredError>()); |
| EXPECT_CALL(*le_cred_manager, CheckCredential(_, le_secret, _, _)) |
| .Times(Exactly(1)); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| PinWeaverAuthBlockState pin_state = { |
| .le_label = 0, .salt = salt, .chaps_iv = chaps_iv, .fek_iv = fek_iv}; |
| AuthBlockState auth_state = {.state = pin_state}; |
| |
| // Test |
| // No need to check for the KeyBlobs value, it is already being tested in |
| // AuthBlock unittest. |
| KeyBlobs out_key_blobs; |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->DeriveKeyBlobsWithAuthBlock(AuthBlockType::kPinWeaver, |
| credentials, auth_state, |
| out_key_blobs) |
| .ok()); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlock creates AuthBlockState and KeyBlobs |
| // with TpmBoundToPcrAuthBlock when the AuthBlock type is |
| // AuthBlockType::kTpmBoundToPcr. |
| TEST_F(AuthBlockUtilityImplTest, CreateTpmBackedPcrBoundAuthBlock) { |
| // Setup test inputs and the mock expectations.. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| |
| brillo::SecureBlob scrypt_derived_key; |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| brillo::SecureBlob auth_value(256, 'a'); |
| EXPECT_CALL(tpm_, GetAuthValue(_, _, _)) |
| .WillOnce(DoAll(SaveArg<1>(&scrypt_derived_key), |
| SetArgPointee<2>(auth_value), |
| ReturnError<TPMErrorBase>())); |
| EXPECT_CALL(tpm_, SealToPcrWithAuthorization(_, auth_value, _, _)) |
| .Times(Exactly(2)); |
| ON_CALL(tpm_, SealToPcrWithAuthorization(_, _, _, _)) |
| .WillByDefault(ReturnError<TPMErrorBase>()); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| AuthBlockState out_state; |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->CreateKeyBlobsWithAuthBlock(AuthBlockType::kTpmBoundToPcr, |
| credentials, std::nullopt, |
| out_state, out_key_blobs) |
| .ok()); |
| |
| // Verify that tpm backed pcr bound auth block is created. |
| EXPECT_TRUE( |
| std::holds_alternative<TpmBoundToPcrAuthBlockState>(out_state.state)); |
| EXPECT_NE(out_key_blobs.vkk_key, std::nullopt); |
| EXPECT_NE(out_key_blobs.vkk_iv, std::nullopt); |
| EXPECT_NE(out_key_blobs.chaps_iv, std::nullopt); |
| auto& tpm_state = std::get<TpmBoundToPcrAuthBlockState>(out_state.state); |
| EXPECT_TRUE(tpm_state.salt.has_value()); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlock derive KeyBlobs successfully with |
| // TpmBoundToPcrAuthBlock when the AuthBlock type is |
| // AuthBlockType::kTpmBoundToPcr. |
| TEST_F(AuthBlockUtilityImplTest, DeriveTpmBackedPcrBoundAuthBlock) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| brillo::SecureBlob tpm_key(20, 'B'); |
| brillo::SecureBlob salt(system_salt_); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| // Make sure TpmAuthBlock calls DecryptTpmBoundToPcr in this case. |
| EXPECT_CALL(tpm_, PreloadSealedData(_, _)).Times(Exactly(1)); |
| EXPECT_CALL(tpm_, GetAuthValue(_, _, _)).Times(Exactly(1)); |
| EXPECT_CALL(tpm_, UnsealWithAuthorization(_, _, _, _, _)).Times(Exactly(1)); |
| |
| TpmBoundToPcrAuthBlockState tpm_state = {.scrypt_derived = true, |
| .salt = salt, |
| .tpm_key = tpm_key, |
| .extended_tpm_key = tpm_key}; |
| AuthBlockState auth_state = {.state = tpm_state}; |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->DeriveKeyBlobsWithAuthBlock(AuthBlockType::kTpmBoundToPcr, |
| credentials, auth_state, |
| out_key_blobs) |
| .ok()); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlock creates AuthBlockState and KeyBlobs |
| // with TpmNotBoundToPcrAuthBlock when the AuthBlock type is |
| // AuthBlockType::kTpmNotBoundToPcr. |
| TEST_F(AuthBlockUtilityImplTest, CreateTpmBackedNonPcrBoundAuthBlock) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| brillo::SecureBlob aes_key; |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| EXPECT_CALL(tpm_, EncryptBlob(_, _, _, _)) |
| .WillOnce(DoAll(SaveArg<2>(&aes_key), ReturnError<TPMErrorBase>())); |
| |
| // Test |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| KeyBlobs out_key_blobs; |
| AuthBlockState out_state; |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->CreateKeyBlobsWithAuthBlock( |
| AuthBlockType::kTpmNotBoundToPcr, credentials, |
| std::nullopt, out_state, out_key_blobs) |
| .ok()); |
| |
| // Verify that Tpm backed not pcr bound Authblock is created. |
| EXPECT_TRUE( |
| std::holds_alternative<TpmNotBoundToPcrAuthBlockState>(out_state.state)); |
| EXPECT_NE(out_key_blobs.vkk_key, std::nullopt); |
| EXPECT_NE(out_key_blobs.vkk_iv, std::nullopt); |
| EXPECT_NE(out_key_blobs.chaps_iv, std::nullopt); |
| auto& tpm_state = std::get<TpmNotBoundToPcrAuthBlockState>(out_state.state); |
| EXPECT_TRUE(tpm_state.salt.has_value()); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlock derive KeyBlobs successfully with |
| // TpmNotBoundToPcrAuthBlock when the AuthBlock type is |
| // AuthBlockType::kTpmNotBoundToPcr. |
| TEST_F(AuthBlockUtilityImplTest, DeriveTpmBackedNonPcrBoundAuthBlock) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| brillo::SecureBlob tpm_key(20, 'B'); |
| brillo::SecureBlob salt(system_salt_); |
| brillo::SecureBlob aes_key(32); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| ASSERT_TRUE(DeriveSecretsScrypt(passkey, salt, {&aes_key})); |
| EXPECT_CALL(tpm_, DecryptBlob(_, tpm_key, aes_key, _)).Times(Exactly(1)); |
| |
| TpmNotBoundToPcrAuthBlockState tpm_state = { |
| .scrypt_derived = true, .salt = salt, .tpm_key = tpm_key}; |
| AuthBlockState auth_state = {.state = tpm_state}; |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| EXPECT_TRUE( |
| auth_block_utility_impl_ |
| ->DeriveKeyBlobsWithAuthBlock(AuthBlockType::kTpmNotBoundToPcr, |
| credentials, auth_state, out_key_blobs) |
| .ok()); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlock creates AuthBlockState and KeyBlobs |
| // with TpmEccAuthBlock when the AuthBlock type is AuthBlockType::kTpmEcc. |
| TEST_F(AuthBlockUtilityImplTest, CreateTpmBackedEccAuthBlock) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| brillo::SecureBlob scrypt_derived_key; |
| brillo::SecureBlob auth_value(32, 'a'); |
| Tpm::TpmVersionInfo version_info; |
| version_info.manufacturer = 0x43524f53; |
| EXPECT_CALL(tpm_, GetVersionInfo(_)) |
| .WillOnce(DoAll(SetArgPointee<0>(version_info), Return(true))); |
| EXPECT_CALL(tpm_, GetEccAuthValue(_, _, _)) |
| .Times(Exactly(5)) |
| .WillOnce(DoAll(SaveArg<1>(&scrypt_derived_key), |
| SetArgPointee<2>(auth_value), |
| ReturnError<TPMErrorBase>())) |
| .WillRepeatedly( |
| DoAll(SetArgPointee<2>(auth_value), ReturnError<TPMErrorBase>())); |
| EXPECT_CALL(tpm_, SealToPcrWithAuthorization(_, auth_value, _, _)) |
| .WillOnce(ReturnError<TPMErrorBase>()) |
| .WillOnce(ReturnError<TPMErrorBase>()); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| AuthBlockState out_state; |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->CreateKeyBlobsWithAuthBlock(AuthBlockType::kTpmEcc, |
| credentials, std::nullopt, |
| out_state, out_key_blobs) |
| .ok()); |
| |
| // Verify that Tpm Ecc AuthBlock is created. |
| EXPECT_TRUE(std::holds_alternative<TpmEccAuthBlockState>(out_state.state)); |
| EXPECT_NE(out_key_blobs.vkk_key, std::nullopt); |
| EXPECT_NE(out_key_blobs.vkk_iv, std::nullopt); |
| EXPECT_NE(out_key_blobs.chaps_iv, std::nullopt); |
| auto& tpm_state = std::get<TpmEccAuthBlockState>(out_state.state); |
| EXPECT_TRUE(tpm_state.salt.has_value()); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlock derives KeyBlobs successfully with |
| // TpmEccAuthBlock when the AuthBlock type is |
| // AuthBlockType::kTpmEcc. |
| TEST_F(AuthBlockUtilityImplTest, DeriveTpmBackedEccAuthBlock) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| brillo::SecureBlob salt(system_salt_); |
| brillo::SecureBlob fake_hash(32, 'C'); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| EXPECT_CALL(tpm_, GetPublicKeyHash(_, _)) |
| .WillOnce( |
| DoAll(SetArgPointee<1>(fake_hash), ReturnError<TPMErrorBase>())); |
| EXPECT_CALL(tpm_, PreloadSealedData(_, _)).Times(Exactly(1)); |
| EXPECT_CALL(tpm_, GetEccAuthValue(_, _, _)).Times(Exactly(5)); |
| |
| brillo::SecureBlob fake_hvkkm(32, 'D'); |
| EXPECT_CALL(tpm_, UnsealWithAuthorization(_, _, _, _, _)) |
| .WillOnce( |
| DoAll(SetArgPointee<4>(fake_hvkkm), ReturnError<TPMErrorBase>())); |
| |
| TpmEccAuthBlockState tpm_state; |
| tpm_state.salt = salt; |
| tpm_state.vkk_iv = brillo::SecureBlob(32, 'E'); |
| tpm_state.sealed_hvkkm = brillo::SecureBlob(32, 'F'); |
| tpm_state.extended_sealed_hvkkm = brillo::SecureBlob(32, 'G'); |
| tpm_state.auth_value_rounds = 5; |
| tpm_state.tpm_public_key_hash = fake_hash; |
| AuthBlockState auth_state = {.state = tpm_state}; |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->DeriveKeyBlobsWithAuthBlock(AuthBlockType::kTpmEcc, |
| credentials, auth_state, |
| out_key_blobs) |
| .ok()); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlock creates AuthBlockState with |
| // LibScryptCompatAuthBlock when the AuthBlock type is |
| // AuthBlockType::kLibScryptCompat. |
| TEST_F(AuthBlockUtilityImplTest, CreateScryptAuthBlockTest) { |
| // Setup mock expectations and test inputs for low entropy AuthBlock. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| AuthBlockState out_state; |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->CreateKeyBlobsWithAuthBlock(AuthBlockType::kLibScryptCompat, |
| credentials, std::nullopt, |
| out_state, out_key_blobs) |
| .ok()); |
| |
| // Verify that a script wrapped AuthBlock is generated. |
| EXPECT_TRUE( |
| std::holds_alternative<LibScryptCompatAuthBlockState>(out_state.state)); |
| auto& scrypt_state = std::get<LibScryptCompatAuthBlockState>(out_state.state); |
| EXPECT_TRUE(scrypt_state.salt.has_value()); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlock derives AuthBlocks with |
| // LibScryptCompatAuthBlock when the AuthBlock type is |
| // AuthBlockType::kLibScryptCompat. |
| TEST_F(AuthBlockUtilityImplTest, DeriveScryptAuthBlock) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob wrapped_keyset = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0x4D, 0xEE, 0xFC, 0x79, 0x0D, 0x79, 0x08, 0x79, |
| 0xD5, 0xF6, 0x07, 0x65, 0xDF, 0x76, 0x5A, 0xAE, 0xD1, 0xBD, 0x1D, 0xCF, |
| 0x29, 0xF6, 0xFF, 0x5C, 0x31, 0x30, 0x23, 0xD1, 0x22, 0x17, 0xDF, 0x74, |
| 0x26, 0xD5, 0x11, 0x88, 0x8D, 0x40, 0xA6, 0x9C, 0xB9, 0x72, 0xCE, 0x37, |
| 0x71, 0xB7, 0x39, 0x0E, 0x3E, 0x34, 0x0F, 0x73, 0x29, 0xF4, 0x0F, 0x89, |
| 0x15, 0xF7, 0x6E, 0xA1, 0x5A, 0x29, 0x78, 0x21, 0xB7, 0xC0, 0x76, 0x50, |
| 0x14, 0x5C, 0xAD, 0x77, 0x53, 0xC9, 0xD0, 0xFE, 0xD1, 0xB9, 0x81, 0x32, |
| 0x75, 0x0E, 0x1E, 0x45, 0x34, 0xBD, 0x0B, 0xF7, 0xFA, 0xED, 0x9A, 0xD7, |
| 0x6B, 0xE4, 0x2F, 0xC0, 0x2F, 0x58, 0xBE, 0x3A, 0x26, 0xD1, 0x82, 0x41, |
| 0x09, 0x82, 0x7F, 0x17, 0xA8, 0x5C, 0x66, 0x0E, 0x24, 0x8B, 0x7B, 0xF5, |
| 0xEB, 0x0C, 0x6D, 0xAE, 0x19, 0x5C, 0x7D, 0xC4, 0x0D, 0x8D, 0xB2, 0x18, |
| 0x13, 0xD4, 0xC0, 0x32, 0x34, 0x15, 0xAE, 0x1D, 0xA1, 0x44, 0x2E, 0x80, |
| 0xD8, 0x00, 0x8A, 0xB9, 0xDD, 0xA4, 0xC0, 0x33, 0xAE, 0x26, 0xD3, 0xE6, |
| 0x53, 0xD6, 0x31, 0x5C, 0x4C, 0x10, 0xBB, 0xA9, 0xD5, 0x53, 0xD7, 0xAD, |
| 0xCD, 0x97, 0x20, 0x83, 0xFC, 0x18, 0x4B, 0x7F, 0xC1, 0xBD, 0x85, 0x43, |
| 0x12, 0x85, 0x4F, 0x6F, 0xAA, 0xDB, 0x58, 0xA0, 0x0F, 0x2C, 0xAB, 0xEA, |
| 0x74, 0x8E, 0x2C, 0x28, 0x01, 0x88, 0x48, 0xA5, 0x0A, 0xFC, 0x2F, 0xB4, |
| 0x59, 0x4B, 0xF6, 0xD9, 0xE5, 0x47, 0x94, 0x42, 0xA5, 0x61, 0x06, 0x8C, |
| 0x5A, 0x9C, 0xD3, 0xA6, 0x30, 0x2C, 0x13, 0xCA, 0xF1, 0xFF, 0xFE, 0x5C, |
| 0xE8, 0x21, 0x25, 0x9A, 0xE0, 0x50, 0xC3, 0x2F, 0x14, 0x71, 0x38, 0xD0, |
| 0xE7, 0x79, 0x5D, 0xF0, 0x71, 0x80, 0xF0, 0x3D, 0x05, 0xB6, 0xF7, 0x67, |
| 0x3F, 0x22, 0x21, 0x7A, 0xED, 0x48, 0xC4, 0x2D, 0xEA, 0x2E, 0xAE, 0xE9, |
| 0xA8, 0xFF, 0xA0, 0xB6, 0xB4, 0x0A, 0x94, 0x34, 0x40, 0xD1, 0x6C, 0x6C, |
| 0xC7, 0x90, 0x9C, 0xF7, 0xED, 0x0B, 0xED, 0x90, 0xB1, 0x4D, 0x6D, 0xB4, |
| 0x3D, 0x04, 0x7E, 0x7B, 0x16, 0x59, 0xFF, 0xFE}; |
| |
| brillo::SecureBlob wrapped_chaps_key = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0xC9, 0x80, 0xA1, 0x30, 0x82, 0x40, 0xE6, 0xCF, |
| 0xC8, 0x59, 0xE9, 0xB6, 0xB0, 0xE8, 0xBF, 0x95, 0x82, 0x79, 0x71, 0xF9, |
| 0x86, 0x8A, 0xCA, 0x53, 0x23, 0xCF, 0x31, 0xFE, 0x4B, 0xD2, 0xA5, 0x26, |
| 0xA4, 0x46, 0x3D, 0x35, 0xEF, 0x69, 0x02, 0xC4, 0xBF, 0x72, 0xDC, 0xF8, |
| 0x90, 0x77, 0xFB, 0x59, 0x0D, 0x41, 0xCB, 0x5B, 0x58, 0xC6, 0x08, 0x0F, |
| 0x19, 0x4E, 0xC8, 0x4A, 0x57, 0xE7, 0x63, 0x43, 0x39, 0x79, 0xD7, 0x6E, |
| 0x0D, 0xD0, 0xE4, 0x4F, 0xFA, 0x55, 0x32, 0xE1, 0x6B, 0xE4, 0xFF, 0x12, |
| 0xB1, 0xA3, 0x75, 0x9C, 0x44, 0x3A, 0x16, 0x68, 0x5C, 0x11, 0xD0, 0xA5, |
| 0x4C, 0x65, 0xB0, 0xBF, 0x04, 0x41, 0x94, 0xFE, 0xC5, 0xDD, 0x5C, 0x78, |
| 0x5B, 0x14, 0xA1, 0x3F, 0x0B, 0x17, 0x9C, 0x75, 0xA5, 0x9E, 0x36, 0x14, |
| 0x5B, 0xC4, 0xAC, 0x77, 0x28, 0xDE, 0xEB, 0xB4, 0x51, 0x5F, 0x33, 0x36}; |
| |
| brillo::SecureBlob wrapped_reset_seed = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0x7F, 0x40, 0x30, 0x51, 0x2F, 0x15, 0x62, 0x15, |
| 0xB1, 0x2E, 0x58, 0x27, 0x52, 0xE4, 0xFF, 0xC5, 0x3C, 0x1E, 0x19, 0x05, |
| 0x84, 0xD8, 0xE8, 0xD4, 0xFD, 0x8C, 0x33, 0xE8, 0x06, 0x1A, 0x38, 0x28, |
| 0x2D, 0xD7, 0x01, 0xD2, 0xB3, 0xE1, 0x95, 0xC3, 0x49, 0x63, 0x39, 0xA2, |
| 0xB2, 0xE3, 0xDA, 0xE2, 0x76, 0x40, 0x40, 0x11, 0xD1, 0x98, 0xD2, 0x03, |
| 0xFB, 0x60, 0xD0, 0xA1, 0xA5, 0xB5, 0x51, 0xAA, 0xEF, 0x6C, 0xB3, 0xAB, |
| 0x23, 0x65, 0xCA, 0x44, 0x84, 0x7A, 0x71, 0xCA, 0x0C, 0x36, 0x33, 0x7F, |
| 0x53, 0x06, 0x0E, 0x03, 0xBB, 0xC1, 0x9A, 0x9D, 0x40, 0x1C, 0x2F, 0x46, |
| 0xB7, 0x84, 0x00, 0x59, 0x5B, 0xD6, 0x53, 0xE4, 0x51, 0x82, 0xC2, 0x3D, |
| 0xF4, 0x46, 0xD2, 0xDD, 0xE5, 0x7A, 0x0A, 0xEB, 0xC8, 0x45, 0x7C, 0x37, |
| 0x01, 0xD5, 0x37, 0x4E, 0xE3, 0xC7, 0xBC, 0xC6, 0x5E, 0x25, 0xFE, 0xE2, |
| 0x05, 0x14, 0x60, 0x33, 0xB8, 0x1A, 0xF1, 0x17, 0xE1, 0x0C, 0x25, 0x00, |
| 0xA5, 0x0A, 0xD5, 0x03}; |
| |
| brillo::SecureBlob passkey = {0x31, 0x35, 0x64, 0x64, 0x38, 0x38, 0x66, 0x36, |
| 0x35, 0x31, 0x30, 0x65, 0x30, 0x64, 0x35, 0x64, |
| 0x35, 0x35, 0x36, 0x35, 0x35, 0x35, 0x38, 0x36, |
| 0x31, 0x32, 0x62, 0x37, 0x39, 0x36, 0x30, 0x65}; |
| |
| Credentials credentials(kUser, passkey); |
| |
| LibScryptCompatAuthBlockState scrypt_state = { |
| .wrapped_keyset = wrapped_keyset, |
| .wrapped_chaps_key = wrapped_chaps_key, |
| .wrapped_reset_seed = wrapped_reset_seed, |
| .salt = system_salt_}; |
| AuthBlockState auth_state = {.state = scrypt_state}; |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->DeriveKeyBlobsWithAuthBlock(AuthBlockType::kLibScryptCompat, |
| credentials, auth_state, |
| out_key_blobs) |
| .ok()); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlock derives AuthBlocks with |
| // DoubleWrappedCompatAuthBlock when the AuthBlock type is |
| // AuthBlockType::kDoubleWrappedCompat. |
| TEST_F(AuthBlockUtilityImplTest, DeriveDoubleWrappedAuthBlock) { |
| // Setup test inputs and the mock expectations. |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| brillo::SecureBlob wrapped_keyset = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0x4D, 0xEE, 0xFC, 0x79, 0x0D, 0x79, 0x08, 0x79, |
| 0xD5, 0xF6, 0x07, 0x65, 0xDF, 0x76, 0x5A, 0xAE, 0xD1, 0xBD, 0x1D, 0xCF, |
| 0x29, 0xF6, 0xFF, 0x5C, 0x31, 0x30, 0x23, 0xD1, 0x22, 0x17, 0xDF, 0x74, |
| 0x26, 0xD5, 0x11, 0x88, 0x8D, 0x40, 0xA6, 0x9C, 0xB9, 0x72, 0xCE, 0x37, |
| 0x71, 0xB7, 0x39, 0x0E, 0x3E, 0x34, 0x0F, 0x73, 0x29, 0xF4, 0x0F, 0x89, |
| 0x15, 0xF7, 0x6E, 0xA1, 0x5A, 0x29, 0x78, 0x21, 0xB7, 0xC0, 0x76, 0x50, |
| 0x14, 0x5C, 0xAD, 0x77, 0x53, 0xC9, 0xD0, 0xFE, 0xD1, 0xB9, 0x81, 0x32, |
| 0x75, 0x0E, 0x1E, 0x45, 0x34, 0xBD, 0x0B, 0xF7, 0xFA, 0xED, 0x9A, 0xD7, |
| 0x6B, 0xE4, 0x2F, 0xC0, 0x2F, 0x58, 0xBE, 0x3A, 0x26, 0xD1, 0x82, 0x41, |
| 0x09, 0x82, 0x7F, 0x17, 0xA8, 0x5C, 0x66, 0x0E, 0x24, 0x8B, 0x7B, 0xF5, |
| 0xEB, 0x0C, 0x6D, 0xAE, 0x19, 0x5C, 0x7D, 0xC4, 0x0D, 0x8D, 0xB2, 0x18, |
| 0x13, 0xD4, 0xC0, 0x32, 0x34, 0x15, 0xAE, 0x1D, 0xA1, 0x44, 0x2E, 0x80, |
| 0xD8, 0x00, 0x8A, 0xB9, 0xDD, 0xA4, 0xC0, 0x33, 0xAE, 0x26, 0xD3, 0xE6, |
| 0x53, 0xD6, 0x31, 0x5C, 0x4C, 0x10, 0xBB, 0xA9, 0xD5, 0x53, 0xD7, 0xAD, |
| 0xCD, 0x97, 0x20, 0x83, 0xFC, 0x18, 0x4B, 0x7F, 0xC1, 0xBD, 0x85, 0x43, |
| 0x12, 0x85, 0x4F, 0x6F, 0xAA, 0xDB, 0x58, 0xA0, 0x0F, 0x2C, 0xAB, 0xEA, |
| 0x74, 0x8E, 0x2C, 0x28, 0x01, 0x88, 0x48, 0xA5, 0x0A, 0xFC, 0x2F, 0xB4, |
| 0x59, 0x4B, 0xF6, 0xD9, 0xE5, 0x47, 0x94, 0x42, 0xA5, 0x61, 0x06, 0x8C, |
| 0x5A, 0x9C, 0xD3, 0xA6, 0x30, 0x2C, 0x13, 0xCA, 0xF1, 0xFF, 0xFE, 0x5C, |
| 0xE8, 0x21, 0x25, 0x9A, 0xE0, 0x50, 0xC3, 0x2F, 0x14, 0x71, 0x38, 0xD0, |
| 0xE7, 0x79, 0x5D, 0xF0, 0x71, 0x80, 0xF0, 0x3D, 0x05, 0xB6, 0xF7, 0x67, |
| 0x3F, 0x22, 0x21, 0x7A, 0xED, 0x48, 0xC4, 0x2D, 0xEA, 0x2E, 0xAE, 0xE9, |
| 0xA8, 0xFF, 0xA0, 0xB6, 0xB4, 0x0A, 0x94, 0x34, 0x40, 0xD1, 0x6C, 0x6C, |
| 0xC7, 0x90, 0x9C, 0xF7, 0xED, 0x0B, 0xED, 0x90, 0xB1, 0x4D, 0x6D, 0xB4, |
| 0x3D, 0x04, 0x7E, 0x7B, 0x16, 0x59, 0xFF, 0xFE}; |
| |
| brillo::SecureBlob wrapped_chaps_key = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0xC9, 0x80, 0xA1, 0x30, 0x82, 0x40, 0xE6, 0xCF, |
| 0xC8, 0x59, 0xE9, 0xB6, 0xB0, 0xE8, 0xBF, 0x95, 0x82, 0x79, 0x71, 0xF9, |
| 0x86, 0x8A, 0xCA, 0x53, 0x23, 0xCF, 0x31, 0xFE, 0x4B, 0xD2, 0xA5, 0x26, |
| 0xA4, 0x46, 0x3D, 0x35, 0xEF, 0x69, 0x02, 0xC4, 0xBF, 0x72, 0xDC, 0xF8, |
| 0x90, 0x77, 0xFB, 0x59, 0x0D, 0x41, 0xCB, 0x5B, 0x58, 0xC6, 0x08, 0x0F, |
| 0x19, 0x4E, 0xC8, 0x4A, 0x57, 0xE7, 0x63, 0x43, 0x39, 0x79, 0xD7, 0x6E, |
| 0x0D, 0xD0, 0xE4, 0x4F, 0xFA, 0x55, 0x32, 0xE1, 0x6B, 0xE4, 0xFF, 0x12, |
| 0xB1, 0xA3, 0x75, 0x9C, 0x44, 0x3A, 0x16, 0x68, 0x5C, 0x11, 0xD0, 0xA5, |
| 0x4C, 0x65, 0xB0, 0xBF, 0x04, 0x41, 0x94, 0xFE, 0xC5, 0xDD, 0x5C, 0x78, |
| 0x5B, 0x14, 0xA1, 0x3F, 0x0B, 0x17, 0x9C, 0x75, 0xA5, 0x9E, 0x36, 0x14, |
| 0x5B, 0xC4, 0xAC, 0x77, 0x28, 0xDE, 0xEB, 0xB4, 0x51, 0x5F, 0x33, 0x36}; |
| |
| brillo::SecureBlob wrapped_reset_seed = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0x7F, 0x40, 0x30, 0x51, 0x2F, 0x15, 0x62, 0x15, |
| 0xB1, 0x2E, 0x58, 0x27, 0x52, 0xE4, 0xFF, 0xC5, 0x3C, 0x1E, 0x19, 0x05, |
| 0x84, 0xD8, 0xE8, 0xD4, 0xFD, 0x8C, 0x33, 0xE8, 0x06, 0x1A, 0x38, 0x28, |
| 0x2D, 0xD7, 0x01, 0xD2, 0xB3, 0xE1, 0x95, 0xC3, 0x49, 0x63, 0x39, 0xA2, |
| 0xB2, 0xE3, 0xDA, 0xE2, 0x76, 0x40, 0x40, 0x11, 0xD1, 0x98, 0xD2, 0x03, |
| 0xFB, 0x60, 0xD0, 0xA1, 0xA5, 0xB5, 0x51, 0xAA, 0xEF, 0x6C, 0xB3, 0xAB, |
| 0x23, 0x65, 0xCA, 0x44, 0x84, 0x7A, 0x71, 0xCA, 0x0C, 0x36, 0x33, 0x7F, |
| 0x53, 0x06, 0x0E, 0x03, 0xBB, 0xC1, 0x9A, 0x9D, 0x40, 0x1C, 0x2F, 0x46, |
| 0xB7, 0x84, 0x00, 0x59, 0x5B, 0xD6, 0x53, 0xE4, 0x51, 0x82, 0xC2, 0x3D, |
| 0xF4, 0x46, 0xD2, 0xDD, 0xE5, 0x7A, 0x0A, 0xEB, 0xC8, 0x45, 0x7C, 0x37, |
| 0x01, 0xD5, 0x37, 0x4E, 0xE3, 0xC7, 0xBC, 0xC6, 0x5E, 0x25, 0xFE, 0xE2, |
| 0x05, 0x14, 0x60, 0x33, 0xB8, 0x1A, 0xF1, 0x17, 0xE1, 0x0C, 0x25, 0x00, |
| 0xA5, 0x0A, 0xD5, 0x03}; |
| |
| brillo::SecureBlob passkey = {0x31, 0x35, 0x64, 0x64, 0x38, 0x38, 0x66, 0x36, |
| 0x35, 0x31, 0x30, 0x65, 0x30, 0x64, 0x35, 0x64, |
| 0x35, 0x35, 0x36, 0x35, 0x35, 0x35, 0x38, 0x36, |
| 0x31, 0x32, 0x62, 0x37, 0x39, 0x36, 0x30, 0x65}; |
| |
| Credentials credentials(kUser, passkey); |
| |
| LibScryptCompatAuthBlockState scrypt_state = { |
| .wrapped_keyset = wrapped_keyset, |
| .wrapped_chaps_key = wrapped_chaps_key, |
| .wrapped_reset_seed = wrapped_reset_seed, |
| .salt = system_salt_}; |
| TpmNotBoundToPcrAuthBlockState tpm_state = { |
| .scrypt_derived = false, |
| .salt = system_salt_, |
| .tpm_key = brillo::SecureBlob(20, 'A')}; |
| DoubleWrappedCompatAuthBlockState double_wrapped_state = { |
| .scrypt_state = scrypt_state, .tpm_state = tpm_state}; |
| AuthBlockState auth_state = {.state = double_wrapped_state}; |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| EXPECT_TRUE( |
| auth_block_utility_impl_ |
| ->DeriveKeyBlobsWithAuthBlock(AuthBlockType::kDoubleWrappedCompat, |
| credentials, auth_state, out_key_blobs) |
| .ok()); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlock creates AuthBlockState with |
| // ChallengeCredentialAuthBlock when the AuthBlock type is |
| // AuthBlockType::kChallengeCredential. |
| TEST_F(AuthBlockUtilityImplTest, CreateChallengeCredentialAuthBlock) { |
| // Setup mock expectations and test inputs for low entropy AuthBlock. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| AuthBlockState out_state; |
| EXPECT_TRUE(auth_block_utility_impl_ |
| ->CreateKeyBlobsWithAuthBlock( |
| AuthBlockType::kChallengeCredential, credentials, |
| std::nullopt, out_state, out_key_blobs) |
| .ok()); |
| |
| // Verify that a script wrapped AuthBlock is generated. |
| // TODO(betuls): Update verifications after the integration of the |
| // asynchronous AuthBlock. |
| EXPECT_TRUE(std::holds_alternative<ChallengeCredentialAuthBlockState>( |
| out_state.state)); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlock derives AuthBlocks with |
| // ChallengeCredentialAuthBlock when the AuthBlock type is |
| // AuthBlockType::kChallengeCredential. |
| TEST_F(AuthBlockUtilityImplTest, DeriveChallengeCredentialAuthBlock) { |
| // Setup test inputs. |
| brillo::SecureBlob wrapped_keyset = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0x4D, 0xEE, 0xFC, 0x79, 0x0D, 0x79, 0x08, 0x79, |
| 0xD5, 0xF6, 0x07, 0x65, 0xDF, 0x76, 0x5A, 0xAE, 0xD1, 0xBD, 0x1D, 0xCF, |
| 0x29, 0xF6, 0xFF, 0x5C, 0x31, 0x30, 0x23, 0xD1, 0x22, 0x17, 0xDF, 0x74, |
| 0x26, 0xD5, 0x11, 0x88, 0x8D, 0x40, 0xA6, 0x9C, 0xB9, 0x72, 0xCE, 0x37, |
| 0x71, 0xB7, 0x39, 0x0E, 0x3E, 0x34, 0x0F, 0x73, 0x29, 0xF4, 0x0F, 0x89, |
| 0x15, 0xF7, 0x6E, 0xA1, 0x5A, 0x29, 0x78, 0x21, 0xB7, 0xC0, 0x76, 0x50, |
| 0x14, 0x5C, 0xAD, 0x77, 0x53, 0xC9, 0xD0, 0xFE, 0xD1, 0xB9, 0x81, 0x32, |
| 0x75, 0x0E, 0x1E, 0x45, 0x34, 0xBD, 0x0B, 0xF7, 0xFA, 0xED, 0x9A, 0xD7, |
| 0x6B, 0xE4, 0x2F, 0xC0, 0x2F, 0x58, 0xBE, 0x3A, 0x26, 0xD1, 0x82, 0x41, |
| 0x09, 0x82, 0x7F, 0x17, 0xA8, 0x5C, 0x66, 0x0E, 0x24, 0x8B, 0x7B, 0xF5, |
| 0xEB, 0x0C, 0x6D, 0xAE, 0x19, 0x5C, 0x7D, 0xC4, 0x0D, 0x8D, 0xB2, 0x18, |
| 0x13, 0xD4, 0xC0, 0x32, 0x34, 0x15, 0xAE, 0x1D, 0xA1, 0x44, 0x2E, 0x80, |
| 0xD8, 0x00, 0x8A, 0xB9, 0xDD, 0xA4, 0xC0, 0x33, 0xAE, 0x26, 0xD3, 0xE6, |
| 0x53, 0xD6, 0x31, 0x5C, 0x4C, 0x10, 0xBB, 0xA9, 0xD5, 0x53, 0xD7, 0xAD, |
| 0xCD, 0x97, 0x20, 0x83, 0xFC, 0x18, 0x4B, 0x7F, 0xC1, 0xBD, 0x85, 0x43, |
| 0x12, 0x85, 0x4F, 0x6F, 0xAA, 0xDB, 0x58, 0xA0, 0x0F, 0x2C, 0xAB, 0xEA, |
| 0x74, 0x8E, 0x2C, 0x28, 0x01, 0x88, 0x48, 0xA5, 0x0A, 0xFC, 0x2F, 0xB4, |
| 0x59, 0x4B, 0xF6, 0xD9, 0xE5, 0x47, 0x94, 0x42, 0xA5, 0x61, 0x06, 0x8C, |
| 0x5A, 0x9C, 0xD3, 0xA6, 0x30, 0x2C, 0x13, 0xCA, 0xF1, 0xFF, 0xFE, 0x5C, |
| 0xE8, 0x21, 0x25, 0x9A, 0xE0, 0x50, 0xC3, 0x2F, 0x14, 0x71, 0x38, 0xD0, |
| 0xE7, 0x79, 0x5D, 0xF0, 0x71, 0x80, 0xF0, 0x3D, 0x05, 0xB6, 0xF7, 0x67, |
| 0x3F, 0x22, 0x21, 0x7A, 0xED, 0x48, 0xC4, 0x2D, 0xEA, 0x2E, 0xAE, 0xE9, |
| 0xA8, 0xFF, 0xA0, 0xB6, 0xB4, 0x0A, 0x94, 0x34, 0x40, 0xD1, 0x6C, 0x6C, |
| 0xC7, 0x90, 0x9C, 0xF7, 0xED, 0x0B, 0xED, 0x90, 0xB1, 0x4D, 0x6D, 0xB4, |
| 0x3D, 0x04, 0x7E, 0x7B, 0x16, 0x59, 0xFF, 0xFE}; |
| |
| brillo::SecureBlob wrapped_chaps_key = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0xC9, 0x80, 0xA1, 0x30, 0x82, 0x40, 0xE6, 0xCF, |
| 0xC8, 0x59, 0xE9, 0xB6, 0xB0, 0xE8, 0xBF, 0x95, 0x82, 0x79, 0x71, 0xF9, |
| 0x86, 0x8A, 0xCA, 0x53, 0x23, 0xCF, 0x31, 0xFE, 0x4B, 0xD2, 0xA5, 0x26, |
| 0xA4, 0x46, 0x3D, 0x35, 0xEF, 0x69, 0x02, 0xC4, 0xBF, 0x72, 0xDC, 0xF8, |
| 0x90, 0x77, 0xFB, 0x59, 0x0D, 0x41, 0xCB, 0x5B, 0x58, 0xC6, 0x08, 0x0F, |
| 0x19, 0x4E, 0xC8, 0x4A, 0x57, 0xE7, 0x63, 0x43, 0x39, 0x79, 0xD7, 0x6E, |
| 0x0D, 0xD0, 0xE4, 0x4F, 0xFA, 0x55, 0x32, 0xE1, 0x6B, 0xE4, 0xFF, 0x12, |
| 0xB1, 0xA3, 0x75, 0x9C, 0x44, 0x3A, 0x16, 0x68, 0x5C, 0x11, 0xD0, 0xA5, |
| 0x4C, 0x65, 0xB0, 0xBF, 0x04, 0x41, 0x94, 0xFE, 0xC5, 0xDD, 0x5C, 0x78, |
| 0x5B, 0x14, 0xA1, 0x3F, 0x0B, 0x17, 0x9C, 0x75, 0xA5, 0x9E, 0x36, 0x14, |
| 0x5B, 0xC4, 0xAC, 0x77, 0x28, 0xDE, 0xEB, 0xB4, 0x51, 0x5F, 0x33, 0x36}; |
| |
| brillo::SecureBlob wrapped_reset_seed = { |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x08, |
| 0x00, 0x00, 0x00, 0x01, 0x7F, 0x40, 0x30, 0x51, 0x2F, 0x15, 0x62, 0x15, |
| 0xB1, 0x2E, 0x58, 0x27, 0x52, 0xE4, 0xFF, 0xC5, 0x3C, 0x1E, 0x19, 0x05, |
| 0x84, 0xD8, 0xE8, 0xD4, 0xFD, 0x8C, 0x33, 0xE8, 0x06, 0x1A, 0x38, 0x28, |
| 0x2D, 0xD7, 0x01, 0xD2, 0xB3, 0xE1, 0x95, 0xC3, 0x49, 0x63, 0x39, 0xA2, |
| 0xB2, 0xE3, 0xDA, 0xE2, 0x76, 0x40, 0x40, 0x11, 0xD1, 0x98, 0xD2, 0x03, |
| 0xFB, 0x60, 0xD0, 0xA1, 0xA5, 0xB5, 0x51, 0xAA, 0xEF, 0x6C, 0xB3, 0xAB, |
| 0x23, 0x65, 0xCA, 0x44, 0x84, 0x7A, 0x71, 0xCA, 0x0C, 0x36, 0x33, 0x7F, |
| 0x53, 0x06, 0x0E, 0x03, 0xBB, 0xC1, 0x9A, 0x9D, 0x40, 0x1C, 0x2F, 0x46, |
| 0xB7, 0x84, 0x00, 0x59, 0x5B, 0xD6, 0x53, 0xE4, 0x51, 0x82, 0xC2, 0x3D, |
| 0xF4, 0x46, 0xD2, 0xDD, 0xE5, 0x7A, 0x0A, 0xEB, 0xC8, 0x45, 0x7C, 0x37, |
| 0x01, 0xD5, 0x37, 0x4E, 0xE3, 0xC7, 0xBC, 0xC6, 0x5E, 0x25, 0xFE, 0xE2, |
| 0x05, 0x14, 0x60, 0x33, 0xB8, 0x1A, 0xF1, 0x17, 0xE1, 0x0C, 0x25, 0x00, |
| 0xA5, 0x0A, 0xD5, 0x03}; |
| |
| brillo::SecureBlob passkey = {0x31, 0x35, 0x64, 0x64, 0x38, 0x38, 0x66, 0x36, |
| 0x35, 0x31, 0x30, 0x65, 0x30, 0x64, 0x35, 0x64, |
| 0x35, 0x35, 0x36, 0x35, 0x35, 0x35, 0x38, 0x36, |
| 0x31, 0x32, 0x62, 0x37, 0x39, 0x36, 0x30, 0x65}; |
| |
| Credentials credentials(kUser, passkey); |
| |
| LibScryptCompatAuthBlockState scrypt_state = { |
| .wrapped_keyset = wrapped_keyset, |
| .wrapped_chaps_key = wrapped_chaps_key, |
| .wrapped_reset_seed = wrapped_reset_seed, |
| .salt = system_salt_}; |
| ChallengeCredentialAuthBlockState cc_state = {.scrypt_state = scrypt_state}; |
| AuthBlockState auth_state = {.state = cc_state}; |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| EXPECT_TRUE( |
| auth_block_utility_impl_ |
| ->DeriveKeyBlobsWithAuthBlock(AuthBlockType::kChallengeCredential, |
| credentials, auth_state, out_key_blobs) |
| .ok()); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlockAsync creates AuthBlockState |
| // and KeyBlobs, internally using a SyncToAsyncAuthBlockAdapter for |
| // accessing the key material from TpmBoundToPcrAuthBlock. |
| TEST_F(AuthBlockUtilityImplTest, SyncToAsyncAdapterCreate) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| |
| brillo::SecureBlob scrypt_derived_key; |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| brillo::SecureBlob auth_value(256, 'a'); |
| EXPECT_CALL(tpm_, GetAuthValue(_, _, _)) |
| .WillOnce(DoAll(SaveArg<1>(&scrypt_derived_key), |
| SetArgPointee<2>(auth_value), |
| ReturnError<TPMErrorBase>())); |
| EXPECT_CALL(tpm_, SealToPcrWithAuthorization(_, auth_value, _, _)) |
| .Times(Exactly(2)); |
| ON_CALL(tpm_, SealToPcrWithAuthorization(_, _, _, _)) |
| .WillByDefault(ReturnError<TPMErrorBase>()); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| AuthBlock::CreateCallback create_callback = base::BindLambdaForTesting( |
| [&](CryptoStatus error, std::unique_ptr<KeyBlobs> blobs, |
| std::unique_ptr<AuthBlockState> auth_state) { |
| // Evaluate results of KeyBlobs and AuthBlockState returned by callback. |
| EXPECT_TRUE(error.ok()); |
| EXPECT_TRUE(std::holds_alternative<TpmBoundToPcrAuthBlockState>( |
| auth_state->state)); |
| EXPECT_NE(blobs->vkk_key, std::nullopt); |
| EXPECT_NE(blobs->vkk_iv, std::nullopt); |
| EXPECT_NE(blobs->chaps_iv, std::nullopt); |
| // Verify that tpm backed pcr bound auth block is created. |
| auto& tpm_state = |
| std::get<TpmBoundToPcrAuthBlockState>(auth_state->state); |
| EXPECT_TRUE(tpm_state.salt.has_value()); |
| }); |
| |
| AuthInput auth_input = { |
| credentials.passkey(), std::nullopt, /*locked_to_single_user*=*/ |
| credentials.GetObfuscatedUsername(), /*reset_secret*/ std::nullopt}; |
| |
| // Test. |
| EXPECT_EQ(true, auth_block_utility_impl_->CreateKeyBlobsWithAuthBlockAsync( |
| AuthBlockType::kTpmBoundToPcr, auth_input, |
| std::move(create_callback))); |
| } |
| |
| // Test that DeriveKeyBlobsWithAuthBlockAsync derives KeyBlobs, |
| // internally using a SyncToAsyncAuthBlockAdapter for |
| // accessing the key material from TpmBoundToPcrAuthBlock. |
| TEST_F(AuthBlockUtilityImplTest, SyncToAsyncAdapterDerive) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| brillo::SecureBlob tpm_key(20, 'B'); |
| brillo::SecureBlob salt(system_salt_); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| // Make sure TpmAuthBlock calls DecryptTpmBoundToPcr in this case. |
| EXPECT_CALL(tpm_, PreloadSealedData(_, _)).Times(Exactly(1)); |
| EXPECT_CALL(tpm_, GetAuthValue(_, _, _)).Times(Exactly(1)); |
| EXPECT_CALL(tpm_, UnsealWithAuthorization(_, _, _, _, _)).Times(Exactly(1)); |
| |
| TpmBoundToPcrAuthBlockState tpm_state = {.scrypt_derived = true, |
| .salt = salt, |
| .tpm_key = tpm_key, |
| .extended_tpm_key = tpm_key}; |
| AuthBlockState auth_state = {.state = tpm_state}; |
| AuthInput auth_input = {credentials.passkey(), |
| /*locked_to_single_user=*/std::nullopt}; |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test. |
| AuthBlock::DeriveCallback derive_callback = base::BindLambdaForTesting( |
| [&](CryptoStatus error, std::unique_ptr<KeyBlobs> blobs) { |
| // Evaluate results of KeyBlobs returned by callback. |
| EXPECT_TRUE(error.ok()); |
| EXPECT_NE(blobs->vkk_key, std::nullopt); |
| EXPECT_NE(blobs->vkk_iv, std::nullopt); |
| EXPECT_NE(blobs->chaps_iv, std::nullopt); |
| }); |
| |
| EXPECT_EQ(true, auth_block_utility_impl_->DeriveKeyBlobsWithAuthBlockAsync( |
| AuthBlockType::kTpmBoundToPcr, auth_input, auth_state, |
| std::move(derive_callback))); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlockAsync creates AuthBlockState |
| // and KeyBlobs, internally using a AsyncChallengeCredentialAuthBlock for |
| // accessing the key material. |
| TEST_F(AuthBlockUtilityImplTest, AsyncChallengeCredentialCreate) { |
| brillo::SecureBlob passkey("passkey"); |
| Credentials credentials(kUser, passkey); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| EXPECT_CALL(challenge_credentials_helper_, GenerateNew(kUser, _, _, _, _)) |
| .WillOnce([&](auto&&, auto public_key_info, auto&&, auto&&, |
| auto&& callback) { |
| auto info = std::make_unique<structure::SignatureChallengeInfo>(); |
| info->public_key_spki_der = public_key_info.public_key_spki_der; |
| info->salt_signature_algorithm = public_key_info.signature_algorithm[0]; |
| auto passkey = std::make_unique<brillo::SecureBlob>("passkey"); |
| std::move(callback).Run(std::move(info), std::move(passkey)); |
| }); |
| |
| auto mock_key_challenge_service = |
| std::make_unique<NiceMock<MockKeyChallengeService>>(); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_, |
| &challenge_credentials_helper_, std::move(mock_key_challenge_service), |
| credentials.username()); |
| |
| AuthBlock::CreateCallback create_callback = base::BindLambdaForTesting( |
| [&](CryptoStatus error, std::unique_ptr<KeyBlobs> blobs, |
| std::unique_ptr<AuthBlockState> auth_state) { |
| // Evaluate results of KeyBlobs and AuthBlockState returned by callback. |
| EXPECT_TRUE(error.ok()); |
| |
| // Because the salt is generated randomly inside the auth block, this |
| // test cannot check the exact values returned. The salt() could be |
| // passed through in some test specific harness, but the underlying |
| // scrypt code is tested in so many other places, it's unnecessary. |
| EXPECT_FALSE(blobs->scrypt_key->derived_key().empty()); |
| EXPECT_FALSE(blobs->scrypt_key->ConsumeSalt().empty()); |
| |
| EXPECT_FALSE(blobs->chaps_scrypt_key->derived_key().empty()); |
| EXPECT_FALSE(blobs->chaps_scrypt_key->ConsumeSalt().empty()); |
| |
| EXPECT_FALSE( |
| blobs->scrypt_wrapped_reset_seed_key->derived_key().empty()); |
| EXPECT_FALSE( |
| blobs->scrypt_wrapped_reset_seed_key->ConsumeSalt().empty()); |
| |
| ASSERT_TRUE(std::holds_alternative<ChallengeCredentialAuthBlockState>( |
| auth_state->state)); |
| |
| auto& tpm_state = |
| std::get<ChallengeCredentialAuthBlockState>(auth_state->state); |
| |
| AuthInput auth_input{ |
| .challenge_credential_auth_input = |
| ChallengeCredentialAuthInput{ |
| .public_key_spki_der = |
| brillo::BlobFromString("public_key_spki_der"), |
| .challenge_signature_algorithms = |
| {structure::ChallengeSignatureAlgorithm:: |
| kRsassaPkcs1V15Sha256}, |
| }, |
| }; |
| |
| ASSERT_TRUE(tpm_state.keyset_challenge_info.has_value()); |
| EXPECT_EQ(tpm_state.keyset_challenge_info.value().public_key_spki_der, |
| auth_input.challenge_credential_auth_input.value() |
| .public_key_spki_der); |
| EXPECT_EQ( |
| tpm_state.keyset_challenge_info.value().salt_signature_algorithm, |
| auth_input.challenge_credential_auth_input.value() |
| .challenge_signature_algorithms[0]); |
| }); |
| AuthInput auth_input; |
| auth_input.obfuscated_username = credentials.GetObfuscatedUsername(); |
| auth_input.locked_to_single_user = false; |
| auth_input.challenge_credential_auth_input = ChallengeCredentialAuthInput{ |
| .public_key_spki_der = brillo::BlobFromString("public_key_spki_der"), |
| .challenge_signature_algorithms = |
| {structure::ChallengeSignatureAlgorithm::kRsassaPkcs1V15Sha256}, |
| }; |
| |
| // Test. |
| EXPECT_EQ(true, auth_block_utility_impl_->CreateKeyBlobsWithAuthBlockAsync( |
| AuthBlockType::kChallengeCredential, auth_input, |
| std::move(create_callback))); |
| } |
| |
| // The AsyncChallengeCredentialAuthBlock::Derive should work correctly. |
| TEST_F(AuthBlockUtilityImplTest, AsyncChallengeCredentialDerive) { |
| brillo::SecureBlob passkey("passkey"); |
| Credentials credentials(kUser, passkey); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| AuthBlockState auth_state{ |
| .state = |
| ChallengeCredentialAuthBlockState{ |
| .scrypt_state = |
| LibScryptCompatAuthBlockState{ |
| .wrapped_keyset = |
| brillo::SecureBlob{ |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, |
| 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, |
| 0x4D, 0xEE, 0xFC, 0x79, 0x0D, 0x79, 0x08, 0x79, |
| 0xD5, 0xF6, 0x07, 0x65, 0xDF, 0x76, 0x5A, 0xAE, |
| 0xD1, 0xBD, 0x1D, 0xCF, 0x29, 0xF6, 0xFF, 0x5C, |
| 0x31, 0x30, 0x23, 0xD1, 0x22, 0x17, 0xDF, 0x74, |
| 0x26, 0xD5, 0x11, 0x88, 0x8D, 0x40, 0xA6, 0x9C, |
| 0xB9, 0x72, 0xCE, 0x37, 0x71, 0xB7, 0x39, 0x0E, |
| 0x3E, 0x34, 0x0F, 0x73, 0x29, 0xF4, 0x0F, 0x89, |
| 0x15, 0xF7, 0x6E, 0xA1, 0x5A, 0x29, 0x78, 0x21, |
| 0xB7, 0xC0, 0x76, 0x50, 0x14, 0x5C, 0xAD, 0x77, |
| 0x53, 0xC9, 0xD0, 0xFE, 0xD1, 0xB9, 0x81, 0x32, |
| 0x75, 0x0E, 0x1E, 0x45, 0x34, 0xBD, 0x0B, 0xF7, |
| 0xFA, 0xED, 0x9A, 0xD7, 0x6B, 0xE4, 0x2F, 0xC0, |
| 0x2F, 0x58, 0xBE, 0x3A, 0x26, 0xD1, 0x82, 0x41, |
| 0x09, 0x82, 0x7F, 0x17, 0xA8, 0x5C, 0x66, 0x0E, |
| 0x24, 0x8B, 0x7B, 0xF5, 0xEB, 0x0C, 0x6D, 0xAE, |
| 0x19, 0x5C, 0x7D, 0xC4, 0x0D, 0x8D, 0xB2, 0x18, |
| 0x13, 0xD4, 0xC0, 0x32, 0x34, 0x15, 0xAE, 0x1D, |
| 0xA1, 0x44, 0x2E, 0x80, 0xD8, 0x00, 0x8A, 0xB9, |
| 0xDD, 0xA4, 0xC0, 0x33, 0xAE, 0x26, 0xD3, 0xE6, |
| 0x53, 0xD6, 0x31, 0x5C, 0x4C, 0x10, 0xBB, 0xA9, |
| 0xD5, 0x53, 0xD7, 0xAD, 0xCD, 0x97, 0x20, 0x83, |
| 0xFC, 0x18, 0x4B, 0x7F, 0xC1, 0xBD, 0x85, 0x43, |
| 0x12, 0x85, 0x4F, 0x6F, 0xAA, 0xDB, 0x58, 0xA0, |
| 0x0F, 0x2C, 0xAB, 0xEA, 0x74, 0x8E, 0x2C, 0x28, |
| 0x01, 0x88, 0x48, 0xA5, 0x0A, 0xFC, 0x2F, 0xB4, |
| 0x59, 0x4B, 0xF6, 0xD9, 0xE5, 0x47, 0x94, 0x42, |
| 0xA5, 0x61, 0x06, 0x8C, 0x5A, 0x9C, 0xD3, 0xA6, |
| 0x30, 0x2C, 0x13, 0xCA, 0xF1, 0xFF, 0xFE, 0x5C, |
| 0xE8, 0x21, 0x25, 0x9A, 0xE0, 0x50, 0xC3, 0x2F, |
| 0x14, 0x71, 0x38, 0xD0, 0xE7, 0x79, 0x5D, 0xF0, |
| 0x71, 0x80, 0xF0, 0x3D, 0x05, 0xB6, 0xF7, 0x67, |
| 0x3F, 0x22, 0x21, 0x7A, 0xED, 0x48, 0xC4, 0x2D, |
| 0xEA, 0x2E, 0xAE, 0xE9, 0xA8, 0xFF, 0xA0, 0xB6, |
| 0xB4, 0x0A, 0x94, 0x34, 0x40, 0xD1, 0x6C, 0x6C, |
| 0xC7, 0x90, 0x9C, 0xF7, 0xED, 0x0B, 0xED, 0x90, |
| 0xB1, 0x4D, 0x6D, 0xB4, 0x3D, 0x04, 0x7E, 0x7B, |
| 0x16, 0x59, 0xFF, 0xFE}, |
| .wrapped_chaps_key = |
| brillo::SecureBlob{ |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, |
| 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, |
| 0xC9, 0x80, 0xA1, 0x30, 0x82, 0x40, 0xE6, 0xCF, |
| 0xC8, 0x59, 0xE9, 0xB6, 0xB0, 0xE8, 0xBF, 0x95, |
| 0x82, 0x79, 0x71, 0xF9, 0x86, 0x8A, 0xCA, 0x53, |
| 0x23, 0xCF, 0x31, 0xFE, 0x4B, 0xD2, 0xA5, 0x26, |
| 0xA4, 0x46, 0x3D, 0x35, 0xEF, 0x69, 0x02, 0xC4, |
| 0xBF, 0x72, 0xDC, 0xF8, 0x90, 0x77, 0xFB, 0x59, |
| 0x0D, 0x41, 0xCB, 0x5B, 0x58, 0xC6, 0x08, 0x0F, |
| 0x19, 0x4E, 0xC8, 0x4A, 0x57, 0xE7, 0x63, 0x43, |
| 0x39, 0x79, 0xD7, 0x6E, 0x0D, 0xD0, 0xE4, 0x4F, |
| 0xFA, 0x55, 0x32, 0xE1, 0x6B, 0xE4, 0xFF, 0x12, |
| 0xB1, 0xA3, 0x75, 0x9C, 0x44, 0x3A, 0x16, 0x68, |
| 0x5C, 0x11, 0xD0, 0xA5, 0x4C, 0x65, 0xB0, 0xBF, |
| 0x04, 0x41, 0x94, 0xFE, 0xC5, 0xDD, 0x5C, 0x78, |
| 0x5B, 0x14, 0xA1, 0x3F, 0x0B, 0x17, 0x9C, 0x75, |
| 0xA5, 0x9E, 0x36, 0x14, 0x5B, 0xC4, 0xAC, 0x77, |
| 0x28, 0xDE, 0xEB, 0xB4, 0x51, 0x5F, 0x33, 0x36}, |
| .wrapped_reset_seed = |
| brillo::SecureBlob{ |
| 0x73, 0x63, 0x72, 0x79, 0x70, 0x74, 0x00, 0x0E, |
| 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, |
| 0x7F, 0x40, 0x30, 0x51, 0x2F, 0x15, 0x62, 0x15, |
| 0xB1, 0x2E, 0x58, 0x27, 0x52, 0xE4, 0xFF, 0xC5, |
| 0x3C, 0x1E, 0x19, 0x05, 0x84, 0xD8, 0xE8, 0xD4, |
| 0xFD, 0x8C, 0x33, 0xE8, 0x06, 0x1A, 0x38, 0x28, |
| 0x2D, 0xD7, 0x01, 0xD2, 0xB3, 0xE1, 0x95, 0xC3, |
| 0x49, 0x63, 0x39, 0xA2, 0xB2, 0xE3, 0xDA, 0xE2, |
| 0x76, 0x40, 0x40, 0x11, 0xD1, 0x98, 0xD2, 0x03, |
| 0xFB, 0x60, 0xD0, 0xA1, 0xA5, 0xB5, 0x51, 0xAA, |
| 0xEF, 0x6C, 0xB3, 0xAB, 0x23, 0x65, 0xCA, 0x44, |
| 0x84, 0x7A, 0x71, 0xCA, 0x0C, 0x36, 0x33, 0x7F, |
| 0x53, 0x06, 0x0E, 0x03, 0xBB, 0xC1, 0x9A, 0x9D, |
| 0x40, 0x1C, 0x2F, 0x46, 0xB7, 0x84, 0x00, 0x59, |
| 0x5B, 0xD6, 0x53, 0xE4, 0x51, 0x82, 0xC2, 0x3D, |
| 0xF4, 0x46, 0xD2, 0xDD, 0xE5, 0x7A, 0x0A, 0xEB, |
| 0xC8, 0x45, 0x7C, 0x37, 0x01, 0xD5, 0x37, 0x4E, |
| 0xE3, 0xC7, 0xBC, 0xC6, 0x5E, 0x25, 0xFE, 0xE2, |
| 0x05, 0x14, 0x60, 0x33, 0xB8, 0x1A, 0xF1, 0x17, |
| 0xE1, 0x0C, 0x25, 0x00, 0xA5, 0x0A, 0xD5, 0x03}, |
| }, |
| .keyset_challenge_info = |
| structure::SignatureChallengeInfo{ |
| .public_key_spki_der = |
| brillo::BlobFromString("public_key_spki_der"), |
| .salt_signature_algorithm = structure:: |
| ChallengeSignatureAlgorithm::kRsassaPkcs1V15Sha256, |
| }, |
| }, |
| }; |
| |
| brillo::SecureBlob scrypt_passkey = { |
| 0x31, 0x35, 0x64, 0x64, 0x38, 0x38, 0x66, 0x36, 0x35, 0x31, 0x30, |
| 0x65, 0x30, 0x64, 0x35, 0x64, 0x35, 0x35, 0x36, 0x35, 0x35, 0x35, |
| 0x38, 0x36, 0x31, 0x32, 0x62, 0x37, 0x39, 0x36, 0x30, 0x65}; |
| |
| brillo::SecureBlob derived_key = { |
| 0x58, 0x2A, 0x41, 0x1F, 0xC0, 0x27, 0x2D, 0xC7, 0xF8, 0xEC, 0xA3, |
| 0x4E, 0xC0, 0x3F, 0x6C, 0x56, 0x6D, 0x88, 0x69, 0x3F, 0x50, 0x20, |
| 0x37, 0xE3, 0x77, 0x5F, 0xDD, 0xC3, 0x61, 0x2D, 0x27, 0xAD, 0xD3, |
| 0x55, 0x4D, 0x66, 0xE5, 0x83, 0xD2, 0x5E, 0x02, 0x0C, 0x22, 0x59, |
| 0x6C, 0x39, 0x35, 0x86, 0xEC, 0x46, 0xB0, 0x85, 0x89, 0xE3, 0x4C, |
| 0xB9, 0xE2, 0x0C, 0xA1, 0x27, 0x60, 0x85, 0x5A, 0x37}; |
| |
| brillo::SecureBlob derived_chaps_key = { |
| 0x16, 0x53, 0xEE, 0x4D, 0x76, 0x47, 0x68, 0x09, 0xB3, 0x39, 0x1D, |
| 0xD3, 0x6F, 0xA2, 0x8F, 0x8A, 0x3E, 0xB3, 0x64, 0xDD, 0x4D, 0xC4, |
| 0x64, 0x6F, 0xE1, 0xB8, 0x82, 0x28, 0x68, 0x72, 0x68, 0x84, 0x93, |
| 0xE2, 0xDB, 0x2F, 0x27, 0x91, 0x08, 0x2C, 0xA0, 0xD9, 0xA1, 0x6E, |
| 0x6F, 0x0E, 0x13, 0x66, 0x1D, 0x94, 0x12, 0x6F, 0xF4, 0x98, 0x7B, |
| 0x44, 0x62, 0x57, 0x47, 0x33, 0x46, 0xD2, 0x30, 0x42}; |
| |
| brillo::SecureBlob derived_reset_seed_key = { |
| 0xFA, 0x93, 0x57, 0xCE, 0x21, 0xBB, 0x82, 0x4D, 0x3A, 0x3B, 0x26, |
| 0x88, 0x8C, 0x7E, 0x61, 0x52, 0x52, 0xF0, 0x12, 0x25, 0xA3, 0x59, |
| 0xCA, 0x71, 0xD2, 0x0C, 0x52, 0x8A, 0x5B, 0x7A, 0x7D, 0xBF, 0x8E, |
| 0xC7, 0x4D, 0x1D, 0xB5, 0xF9, 0x01, 0xA6, 0xE5, 0x5D, 0x47, 0x2E, |
| 0xFD, 0x7C, 0x78, 0x1D, 0x9B, 0xAD, 0xE6, 0x71, 0x35, 0x2B, 0x32, |
| 0x1E, 0x59, 0x19, 0x47, 0x88, 0x92, 0x50, 0x28, 0x09}; |
| |
| auto mock_key_challenge_service = |
| std::make_unique<NiceMock<MockKeyChallengeService>>(); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_, |
| &challenge_credentials_helper_, std::move(mock_key_challenge_service), |
| credentials.username()); |
| |
| EXPECT_CALL(challenge_credentials_helper_, |
| Decrypt(kUser, _, _, /*locked_to_single_user=*/false, _, _)) |
| .WillOnce([&](auto&&, auto&&, auto&&, auto&&, auto&&, auto&& callback) { |
| auto passkey = std::make_unique<brillo::SecureBlob>(scrypt_passkey); |
| std::move(callback).Run(std::move(passkey)); |
| }); |
| // Test. |
| AuthBlock::DeriveCallback derive_callback = base::BindLambdaForTesting( |
| [&](CryptoStatus error, std::unique_ptr<KeyBlobs> blobs) { |
| ASSERT_TRUE(error.ok()); |
| EXPECT_EQ(derived_key, blobs->scrypt_key->derived_key()); |
| EXPECT_EQ(derived_chaps_key, blobs->chaps_scrypt_key->derived_key()); |
| EXPECT_EQ(derived_reset_seed_key, |
| blobs->scrypt_wrapped_reset_seed_key->derived_key()); |
| }); |
| |
| AuthInput auth_input = {credentials.passkey(), |
| /*locked_to_single_user=*/std::nullopt}; |
| auth_block_utility_impl_->DeriveKeyBlobsWithAuthBlockAsync( |
| AuthBlockType::kChallengeCredential, auth_input, auth_state, |
| std::move(derive_callback)); |
| } |
| |
| // Test that CreateKeyBlobsWithAuthBlockAsync fails, callback |
| // returns CE_OTHER_CRYPTO and nullptrs for AuthBlockState and |
| // KeyBlobs. |
| TEST_F(AuthBlockUtilityImplTest, CreateKeyBlobsWithAuthBlockAsyncFails) { |
| // Setup test inputs and the mock expectations. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| |
| brillo::SecureBlob scrypt_derived_key; |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| AuthInput auth_input = { |
| credentials.passkey(), std::nullopt /*locked_to_single_user*=*/, |
| credentials.GetObfuscatedUsername(), std::nullopt /*reset_secret*/}; |
| |
| AuthBlock::CreateCallback create_callback = base::BindLambdaForTesting( |
| [&](CryptoStatus error, std::unique_ptr<KeyBlobs> blobs, |
| std::unique_ptr<AuthBlockState> auth_state) { |
| // Evaluate results of KeyBlobs and AuthBlockState returned by callback. |
| EXPECT_EQ(error->local_crypto_error(), CryptoError::CE_OTHER_CRYPTO); |
| EXPECT_EQ(blobs, nullptr); |
| EXPECT_EQ(auth_state, nullptr); |
| }); |
| |
| // Test. |
| EXPECT_EQ(false, auth_block_utility_impl_->CreateKeyBlobsWithAuthBlockAsync( |
| AuthBlockType::kMaxValue, auth_input, |
| std::move(create_callback))); |
| } |
| |
| TEST_F(AuthBlockUtilityImplTest, CreateKeyBlobsWithAuthBlockWrongTypeFails) { |
| // Setup mock expectations and test inputs for low entropy AuthBlock. |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test |
| KeyBlobs out_key_blobs; |
| AuthBlockState out_state; |
| EXPECT_EQ( |
| CryptoError::CE_OTHER_CRYPTO, |
| auth_block_utility_impl_ |
| ->CreateKeyBlobsWithAuthBlock(AuthBlockType::kMaxValue, credentials, |
| std::nullopt, out_state, out_key_blobs) |
| ->local_crypto_error()); |
| } |
| |
| // Test that GetAuthBlockStateFromVaultKeyset() gives correct AuthblockState |
| // for each AuthBlock type. |
| TEST_F(AuthBlockUtilityImplTest, DeriveAuthBlockStateFromVaultKeysetTest) { |
| brillo::SecureBlob chaps_iv(16, 'F'); |
| brillo::SecureBlob fek_iv(16, 'X'); |
| brillo::SecureBlob vkk_iv(16, 'Y'); |
| |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| NiceMock<MockKeysetManagement> keyset_management; |
| |
| // PinWeaverAuthBlockState |
| |
| // Construct the vault keyset |
| SerializedVaultKeyset serialized; |
| serialized.set_flags(SerializedVaultKeyset::LE_CREDENTIAL); |
| serialized.set_salt(system_salt_.data(), system_salt_.size()); |
| serialized.set_le_chaps_iv(chaps_iv.data(), chaps_iv.size()); |
| serialized.set_le_label(0); |
| serialized.set_le_fek_iv(fek_iv.data(), fek_iv.size()); |
| |
| auto vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_EQ(SerializedVaultKeyset::LE_CREDENTIAL, vk->GetFlags()); |
| |
| KeyBlobs out_key_blobs; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| &keyset_management, &crypto_, &platform_); |
| |
| // Test |
| AuthBlockState out_state; |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_TRUE(std::holds_alternative<PinWeaverAuthBlockState>(out_state.state)); |
| |
| // ChallengeCredentialAuthBlockState |
| |
| // Construct the vault keyset |
| serialized.set_flags(SerializedVaultKeyset::SCRYPT_WRAPPED | |
| SerializedVaultKeyset::SIGNATURE_CHALLENGE_PROTECTED); |
| auto vk1 = std::make_unique<VaultKeyset>(); |
| vk1->InitializeFromSerialized(serialized); |
| |
| // Test |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk1)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_TRUE(std::holds_alternative<ChallengeCredentialAuthBlockState>( |
| out_state.state)); |
| |
| const ChallengeCredentialAuthBlockState* cc_state = |
| std::get_if<ChallengeCredentialAuthBlockState>(&out_state.state); |
| EXPECT_NE(cc_state, nullptr); |
| |
| // LibScryptCompatAuthBlockState |
| |
| // Construct the vault keyset |
| serialized.set_flags(SerializedVaultKeyset::SCRYPT_WRAPPED); |
| auto vk2 = std::make_unique<VaultKeyset>(); |
| vk2->InitializeFromSerialized(serialized); |
| vk2->SetWrappedKeyset(brillo::SecureBlob("foo")); |
| vk2->SetWrappedChapsKey(brillo::SecureBlob("bar")); |
| vk2->SetWrappedResetSeed(brillo::SecureBlob("baz")); |
| |
| // Test |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk2)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_TRUE( |
| std::holds_alternative<LibScryptCompatAuthBlockState>(out_state.state)); |
| const LibScryptCompatAuthBlockState* scrypt_state = |
| std::get_if<LibScryptCompatAuthBlockState>(&out_state.state); |
| EXPECT_NE(scrypt_state, nullptr); |
| EXPECT_TRUE(scrypt_state->wrapped_keyset.has_value()); |
| EXPECT_TRUE(scrypt_state->wrapped_chaps_key.has_value()); |
| EXPECT_TRUE(scrypt_state->wrapped_reset_seed.has_value()); |
| |
| // DoubleWrappedCompatAuthBlockstate fail when TPM key is not present |
| |
| // Construct the vault keyset |
| serialized.set_flags(SerializedVaultKeyset::SCRYPT_WRAPPED | |
| SerializedVaultKeyset::TPM_WRAPPED); |
| auto vk3 = std::make_unique<VaultKeyset>(); |
| vk3->InitializeFromSerialized(serialized); |
| |
| // Test |
| // Double scrypt fail test when tpm key is not set, failure in creating |
| // sub-state TpmNotBoundToPcrAuthBlockState. |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk3)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_FALSE(std::holds_alternative<DoubleWrappedCompatAuthBlockState>( |
| out_state.state)); |
| |
| // DoubleWrappedCompatAuthBlockstate success |
| |
| // Construct the vault keyset |
| auto vk4 = std::make_unique<VaultKeyset>(); |
| vk4->InitializeFromSerialized(serialized); |
| vk4->SetTPMKey(brillo::SecureBlob("tpmkey")); |
| |
| // Test |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk4)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_TRUE(std::holds_alternative<DoubleWrappedCompatAuthBlockState>( |
| out_state.state)); |
| |
| const DoubleWrappedCompatAuthBlockState* double_wrapped_state = |
| std::get_if<DoubleWrappedCompatAuthBlockState>(&out_state.state); |
| EXPECT_NE(double_wrapped_state, nullptr); |
| |
| // TpmBoundToPcrAuthBlockState |
| |
| // Construct the vault keyset |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::SCRYPT_DERIVED | |
| SerializedVaultKeyset::PCR_BOUND); |
| auto vk5 = std::make_unique<VaultKeyset>(); |
| vk5->InitializeFromSerialized(serialized); |
| vk5->SetTpmPublicKeyHash(brillo::SecureBlob("publickeyhash")); |
| vk5->SetTPMKey(brillo::SecureBlob("tpmkey")); |
| vk5->SetExtendedTPMKey(brillo::SecureBlob("extpmkey")); |
| |
| // Test |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk5)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_TRUE( |
| std::holds_alternative<TpmBoundToPcrAuthBlockState>(out_state.state)); |
| |
| const TpmBoundToPcrAuthBlockState* tpm_state = |
| std::get_if<TpmBoundToPcrAuthBlockState>(&out_state.state); |
| EXPECT_NE(tpm_state, nullptr); |
| EXPECT_TRUE(tpm_state->scrypt_derived.value()); |
| EXPECT_TRUE(tpm_state->extended_tpm_key.has_value()); |
| EXPECT_TRUE(tpm_state->tpm_key.has_value()); |
| |
| // TpmNotBoundToPcrAuthBlockState |
| |
| // Construct the vault keyset |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED); |
| auto vk6 = std::make_unique<VaultKeyset>(); |
| vk6->InitializeFromSerialized(serialized); |
| vk6->SetTpmPublicKeyHash(brillo::SecureBlob("publickeyhash")); |
| vk6->SetTPMKey(brillo::SecureBlob("tpmkey")); |
| // Test |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk6)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_TRUE( |
| std::holds_alternative<TpmNotBoundToPcrAuthBlockState>(out_state.state)); |
| const TpmNotBoundToPcrAuthBlockState* tpm_state2 = |
| std::get_if<TpmNotBoundToPcrAuthBlockState>(&out_state.state); |
| EXPECT_NE(tpm_state2, nullptr); |
| EXPECT_FALSE(tpm_state2->scrypt_derived.value()); |
| EXPECT_TRUE(tpm_state2->tpm_key.has_value()); |
| |
| // EccAuthBlockStateTest |
| |
| // Construct the vault keyset |
| SerializedVaultKeyset serialized2; |
| serialized2.set_password_rounds(5); |
| serialized2.set_vkk_iv(vkk_iv.data(), vkk_iv.size()); |
| serialized2.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::SCRYPT_DERIVED | |
| SerializedVaultKeyset::ECC | |
| SerializedVaultKeyset::PCR_BOUND); |
| auto vk7 = std::make_unique<VaultKeyset>(); |
| vk7->InitializeFromSerialized(serialized2); |
| vk7->SetTpmPublicKeyHash(brillo::SecureBlob("publickeyhash")); |
| vk7->SetTPMKey(brillo::SecureBlob("tpmkey")); |
| vk7->SetExtendedTPMKey(brillo::SecureBlob("extpmkey")); |
| |
| // Test |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk7)))); |
| auth_block_utility_impl_->GetAuthBlockStateFromVaultKeyset( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername(), |
| out_state); |
| EXPECT_TRUE(std::holds_alternative<TpmEccAuthBlockState>(out_state.state)); |
| |
| const TpmEccAuthBlockState* tpm_ecc_state = |
| std::get_if<TpmEccAuthBlockState>(&out_state.state); |
| |
| EXPECT_NE(tpm_ecc_state, nullptr); |
| EXPECT_TRUE(tpm_ecc_state->salt.has_value()); |
| EXPECT_TRUE(tpm_ecc_state->sealed_hvkkm.has_value()); |
| EXPECT_TRUE(tpm_ecc_state->extended_sealed_hvkkm.has_value()); |
| EXPECT_TRUE(tpm_ecc_state->tpm_public_key_hash.has_value()); |
| EXPECT_TRUE(tpm_ecc_state->vkk_iv.has_value()); |
| EXPECT_EQ(tpm_ecc_state->auth_value_rounds.value(), 5); |
| } |
| |
| TEST_F(AuthBlockUtilityImplTest, MatchAuthBlockForCreation) { |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| // Test for kLibScryptCompat |
| EXPECT_EQ( |
| AuthBlockType::kLibScryptCompat, |
| auth_block_utility_impl_->GetAuthBlockTypeForCreation( |
| /*is_le_credential =*/false, /*is_challenge_credential =*/false)); |
| |
| // Test for kPinWeaver |
| KeyData key_data; |
| key_data.mutable_policy()->set_low_entropy_credential(true); |
| credentials.set_key_data(key_data); |
| EXPECT_EQ( |
| AuthBlockType::kPinWeaver, |
| auth_block_utility_impl_->GetAuthBlockTypeForCreation( |
| /*is_le_credential =*/true, /*is_challenge_credential =*/false)); |
| |
| // Test for kChallengeResponse |
| KeyData key_data2; |
| key_data2.set_type(KeyData::KEY_TYPE_CHALLENGE_RESPONSE); |
| credentials.set_key_data(key_data2); |
| EXPECT_EQ( |
| AuthBlockType::kChallengeCredential, |
| auth_block_utility_impl_->GetAuthBlockTypeForCreation( |
| /*is_le_credential =*/false, /*is_challenge_credential =*/true)); |
| |
| // Test for Tpm backed AuthBlock types. |
| ON_CALL(tpm_, IsOwned()).WillByDefault(Return(true)); |
| // credentials.key_data type shouldn't be challenge credential any more. |
| KeyData key_data3; |
| credentials.set_key_data(key_data3); |
| |
| // Test for kTpmEcc |
| EXPECT_EQ( |
| AuthBlockType::kTpmEcc, |
| auth_block_utility_impl_->GetAuthBlockTypeForCreation( |
| /*is_le_credential =*/false, /*is_challenge_credential =*/false)); |
| |
| // Test for kTpmNotBoundToPcr (No TPM or no TPM2.0) |
| EXPECT_CALL(tpm_, GetVersion()).WillOnce(Return(Tpm::TPM_1_2)); |
| EXPECT_EQ( |
| AuthBlockType::kTpmNotBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForCreation( |
| /*is_le_credential =*/false, /*is_challenge_credential =*/false)); |
| |
| // Test for kTpmBoundToPcr (TPM2.0 but no support for ECC key) |
| EXPECT_CALL(tpm_, GetVersion()).WillOnce(Return(Tpm::TPM_2_0)); |
| EXPECT_CALL(cryptohome_keys_manager_, GetKeyLoader(CryptohomeKeyType::kECC)) |
| .WillOnce(Return(nullptr)); |
| EXPECT_EQ( |
| AuthBlockType::kTpmBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForCreation( |
| /*is_le_credential =*/false, /*is_challenge_credential =*/false)); |
| } |
| |
| TEST_F(AuthBlockUtilityImplTest, MatchAuthBlockForDerivation) { |
| // Setup |
| brillo::SecureBlob passkey(20, 'A'); |
| Credentials credentials(kUser, passkey); |
| |
| SerializedVaultKeyset serialized; |
| auto vk = std::make_unique<VaultKeyset>(); |
| |
| NiceMock<MockKeysetManagement> keyset_management; |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| &keyset_management, &crypto_, &platform_); |
| |
| // Test for kLibScryptCompat |
| serialized.set_flags(SerializedVaultKeyset::SCRYPT_WRAPPED); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_EQ( |
| AuthBlockType::kLibScryptCompat, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| serialized.set_flags(SerializedVaultKeyset::SCRYPT_WRAPPED | |
| SerializedVaultKeyset::TPM_WRAPPED); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_NE( |
| AuthBlockType::kLibScryptCompat, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| |
| // Test for DoubleWrappedCompat |
| serialized.set_flags(SerializedVaultKeyset::SCRYPT_WRAPPED | |
| SerializedVaultKeyset::TPM_WRAPPED); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_EQ( |
| AuthBlockType::kDoubleWrappedCompat, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| |
| // Test for kPinWeaver |
| serialized.set_flags(SerializedVaultKeyset::LE_CREDENTIAL); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_EQ( |
| AuthBlockType::kPinWeaver, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| |
| // Test for kChallengeResponse |
| serialized.set_flags(SerializedVaultKeyset::SIGNATURE_CHALLENGE_PROTECTED); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_EQ( |
| AuthBlockType::kChallengeCredential, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| |
| // Test for kTpmNotBoundToPcrFlags |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_EQ( |
| AuthBlockType::kTpmNotBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::SCRYPT_WRAPPED); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_NE( |
| AuthBlockType::kTpmNotBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::PCR_BOUND); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_NE( |
| AuthBlockType::kTpmNotBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::ECC); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_NE( |
| AuthBlockType::kTpmNotBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| |
| // Test for kTpmEcc |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::SCRYPT_DERIVED | |
| SerializedVaultKeyset::PCR_BOUND | |
| SerializedVaultKeyset::ECC); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_EQ( |
| AuthBlockType::kTpmEcc, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| serialized.set_flags( |
| SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::SCRYPT_DERIVED | SerializedVaultKeyset::PCR_BOUND | |
| SerializedVaultKeyset::ECC | SerializedVaultKeyset::SCRYPT_WRAPPED); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_NE( |
| AuthBlockType::kTpmEcc, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| |
| // Test for kTpmBoundToPcr |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::PCR_BOUND); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_EQ( |
| AuthBlockType::kTpmBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::PCR_BOUND | |
| SerializedVaultKeyset::ECC); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_NE( |
| AuthBlockType::kTpmBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| serialized.set_flags(SerializedVaultKeyset::TPM_WRAPPED | |
| SerializedVaultKeyset::PCR_BOUND | |
| SerializedVaultKeyset::SCRYPT_WRAPPED); |
| vk = std::make_unique<VaultKeyset>(); |
| vk->InitializeFromSerialized(serialized); |
| EXPECT_CALL(keyset_management, GetVaultKeyset(_, _)) |
| .WillOnce(Return(ByMove(std::move(vk)))); |
| EXPECT_NE( |
| AuthBlockType::kTpmBoundToPcr, |
| auth_block_utility_impl_->GetAuthBlockTypeForDerivation( |
| credentials.key_data().label(), credentials.GetObfuscatedUsername())); |
| } |
| |
| TEST_F(AuthBlockUtilityImplTest, GetAsyncAuthBlockWithType) { |
| brillo::SecureBlob passkey("passkey"); |
| Credentials credentials(kUser, passkey); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| auto mock_key_challenge_service = |
| std::make_unique<NiceMock<MockKeyChallengeService>>(); |
| |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_, |
| &challenge_credentials_helper_, std::move(mock_key_challenge_service), |
| credentials.username()); |
| // Test. All fields are valid to get an AsyncChallengeCredentialAuthBlock. |
| CryptoStatusOr<std::unique_ptr<AuthBlock>> auth_block = |
| auth_block_utility_impl_->GetAsyncAuthBlockWithType( |
| AuthBlockType::kChallengeCredential); |
| EXPECT_TRUE(auth_block.ok()); |
| EXPECT_NE(auth_block.value(), nullptr); |
| } |
| |
| TEST_F(AuthBlockUtilityImplTest, GetAsyncAuthBlockWithTypeFail) { |
| brillo::SecureBlob passkey("passkey"); |
| Credentials credentials(kUser, passkey); |
| crypto_.Init(&tpm_, &cryptohome_keys_manager_); |
| // Test. No valid challenge_credentials, no valid key_challenge_service or |
| // account_id. |
| auth_block_utility_impl_ = std::make_unique<AuthBlockUtilityImpl>( |
| keyset_management_.get(), &crypto_, &platform_); |
| |
| CryptoStatusOr<std::unique_ptr<AuthBlock>> auth_block = |
| auth_block_utility_impl_->GetAsyncAuthBlockWithType( |
| AuthBlockType::kChallengeCredential); |
| EXPECT_FALSE(auth_block.ok()); |
| } |
| |
| } // namespace cryptohome |
