| // Copyright 2020 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include "tink/subtle/prf/streaming_prf_wrapper.h" |
| |
| #include <string> |
| #include <utility> |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/status/status.h" |
| #include "absl/strings/str_cat.h" |
| #include "tink/util/input_stream_util.h" |
| #include "tink/util/istream_input_stream.h" |
| #include "tink/util/test_matchers.h" |
| #include "tink/util/test_util.h" |
| #include "proto/tink.pb.h" |
| |
| namespace crypto { |
| namespace tink { |
| namespace { |
| |
| using ::crypto::tink::test::IsOk; |
| using ::crypto::tink::test::StatusIs; |
| using ::google::crypto::tink::KeysetInfo; |
| using ::google::crypto::tink::KeyStatusType; |
| using ::google::crypto::tink::OutputPrefixType; |
| using ::testing::Eq; |
| using ::testing::HasSubstr; |
| |
| class DummyStreamingPrf : public StreamingPrf { |
| public: |
| explicit DummyStreamingPrf(absl::string_view name) : name_(name) {} |
| std::unique_ptr<InputStream> ComputePrf( |
| absl::string_view input) const override { |
| return absl::make_unique<crypto::tink::util::IstreamInputStream>( |
| absl::make_unique<std::stringstream>( |
| absl::StrCat(name_.length(), ":", name_, input))); |
| } |
| |
| private: |
| std::string name_; |
| }; |
| |
| TEST(AeadSetWrapperTest, WrapNullptr) { |
| StreamingPrfWrapper wrapper; |
| EXPECT_THAT( |
| wrapper.Wrap(nullptr).status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, HasSubstr("non-NULL"))); |
| } |
| |
| TEST(KeysetDeriverWrapperTest, WrapEmpty) { |
| EXPECT_THAT(StreamingPrfWrapper() |
| .Wrap(absl::make_unique<PrimitiveSet<StreamingPrf>>()) |
| .status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("exactly one key"))); |
| } |
| |
| TEST(KeysetDeriverWrapperTest, WrapSingle) { |
| auto prf_set = absl::make_unique<PrimitiveSet<StreamingPrf>>(); |
| KeysetInfo::KeyInfo key_info; |
| key_info.set_key_id(1234); |
| key_info.set_status(KeyStatusType::ENABLED); |
| key_info.set_output_prefix_type(OutputPrefixType::RAW); |
| |
| auto entry_or = prf_set->AddPrimitive( |
| absl::make_unique<DummyStreamingPrf>("single_key"), key_info); |
| ASSERT_THAT(entry_or, IsOk()); |
| EXPECT_THAT(prf_set->set_primary(entry_or.value()), IsOk()); |
| |
| auto wrapped_prf = StreamingPrfWrapper().Wrap(std::move(prf_set)); |
| |
| ASSERT_THAT(wrapped_prf, IsOk()); |
| |
| auto prf_output = ReadBytesFromStream( |
| 23, wrapped_prf.value()->ComputePrf("input_text").get()); |
| ASSERT_THAT(prf_output, IsOk()); |
| EXPECT_THAT(prf_output.value(), Eq("10:single_keyinput_text")); |
| } |
| |
| TEST(KeysetDeriverWrapperTest, WrapNonRaw) { |
| auto prf_set = absl::make_unique<PrimitiveSet<StreamingPrf>>(); |
| KeysetInfo::KeyInfo key_info; |
| key_info.set_key_id(1234); |
| key_info.set_status(KeyStatusType::ENABLED); |
| key_info.set_output_prefix_type(OutputPrefixType::TINK); |
| |
| auto entry_or = prf_set->AddPrimitive( |
| absl::make_unique<DummyStreamingPrf>("single_key"), key_info); |
| ASSERT_THAT(entry_or, IsOk()); |
| EXPECT_THAT(prf_set->set_primary(entry_or.value()), IsOk()); |
| |
| EXPECT_THAT(StreamingPrfWrapper().Wrap(std::move(prf_set)).status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("output_prefix_type"))); |
| } |
| |
| |
| TEST(KeysetDeriverWrapperTest, WrapMultiple) { |
| auto prf_set = absl::make_unique<PrimitiveSet<StreamingPrf>>(); |
| KeysetInfo::KeyInfo key_info; |
| key_info.set_key_id(1234); |
| key_info.set_status(KeyStatusType::ENABLED); |
| key_info.set_output_prefix_type(OutputPrefixType::RAW); |
| |
| auto entry_or = prf_set->AddPrimitive( |
| absl::make_unique<DummyStreamingPrf>("single_key"), key_info); |
| ASSERT_THAT(entry_or, IsOk()); |
| EXPECT_THAT(prf_set->set_primary(entry_or.value()), IsOk()); |
| key_info.set_key_id(2345); |
| EXPECT_THAT( |
| prf_set |
| ->AddPrimitive(absl::make_unique<DummyStreamingPrf>("second_key"), |
| key_info) |
| .status(), |
| IsOk()); |
| |
| EXPECT_THAT(StreamingPrfWrapper().Wrap(std::move(prf_set)).status(), |
| StatusIs(absl::StatusCode::kInvalidArgument, |
| HasSubstr("given set has 2 keys"))); |
| } |
| |
| |
| } // namespace |
| } // namespace tink |
| } // namespace crypto |