| // Copyright 2021 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 <string> |
| #include <utility> |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/strings/str_cat.h" |
| #include "absl/strings/str_split.h" |
| #include "tink/internal/ec_util.h" |
| #include "tink/jwt/internal/json_util.h" |
| #include "tink/jwt/internal/jwt_format.h" |
| #include "tink/jwt/internal/jwt_public_key_sign_impl.h" |
| #include "tink/jwt/internal/jwt_public_key_verify_impl.h" |
| #include "tink/jwt/jwt_public_key_sign.h" |
| #include "tink/jwt/jwt_public_key_verify.h" |
| #include "tink/jwt/jwt_validator.h" |
| #include "tink/jwt/raw_jwt.h" |
| #include "tink/jwt/verified_jwt.h" |
| #include "tink/subtle/ecdsa_sign_boringssl.h" |
| #include "tink/subtle/ecdsa_verify_boringssl.h" |
| #include "tink/util/test_matchers.h" |
| |
| using ::crypto::tink::test::IsOk; |
| using ::crypto::tink::test::IsOkAndHolds; |
| using ::testing::Eq; |
| using ::testing::Not; |
| |
| namespace crypto { |
| namespace tink { |
| namespace jwt_internal { |
| |
| namespace { |
| |
| class JwtSignatureImplTest : public ::testing::Test { |
| protected: |
| void SetUp() override { |
| util::StatusOr<internal::EcKey> ec_key = |
| internal::NewEcKey(subtle::EllipticCurveType::NIST_P256); |
| ASSERT_THAT(ec_key, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<subtle::EcdsaSignBoringSsl>> sign = |
| subtle::EcdsaSignBoringSsl::New( |
| *ec_key, subtle::HashType::SHA256, |
| subtle::EcdsaSignatureEncoding::IEEE_P1363); |
| ASSERT_THAT(sign, IsOk()); |
| |
| util::StatusOr<std::unique_ptr<subtle::EcdsaVerifyBoringSsl>> verify = |
| subtle::EcdsaVerifyBoringSsl::New( |
| *ec_key, subtle::HashType::SHA256, |
| subtle::EcdsaSignatureEncoding::IEEE_P1363); |
| ASSERT_THAT(verify, IsOk()); |
| |
| jwt_sign_ = absl::make_unique<JwtPublicKeySignImpl>( |
| *std::move(sign), "ES256", /*custom_kid=*/absl::nullopt); |
| jwt_verify_ = absl::make_unique<JwtPublicKeyVerifyImpl>( |
| *std::move(verify), "ES256", /*custom_kid=*/absl::nullopt); |
| } |
| std::unique_ptr<JwtPublicKeySignImpl> jwt_sign_; |
| std::unique_ptr<JwtPublicKeyVerifyImpl> jwt_verify_; |
| }; |
| |
| TEST_F(JwtSignatureImplTest, CreateAndValidateToken) { |
| absl::Time now = absl::Now(); |
| util::StatusOr<RawJwt> raw_jwt_or = |
| RawJwtBuilder() |
| .SetTypeHeader("typeHeader") |
| .SetJwtId("id123") |
| .SetNotBefore(now - absl::Seconds(300)) |
| .SetIssuedAt(now) |
| .SetExpiration(now + absl::Seconds(300)) |
| .Build(); |
| ASSERT_THAT(raw_jwt_or, IsOk()); |
| RawJwt raw_jwt = raw_jwt_or.value(); |
| |
| util::StatusOr<std::string> compact = |
| jwt_sign_->SignAndEncodeWithKid(raw_jwt, /*kid=*/absl::nullopt); |
| ASSERT_THAT(compact, IsOk()); |
| |
| util::StatusOr<JwtValidator> validator = |
| JwtValidatorBuilder().ExpectTypeHeader("typeHeader").Build(); |
| ASSERT_THAT(validator, IsOk()); |
| |
| // Success |
| util::StatusOr<VerifiedJwt> verified_jwt = |
| jwt_verify_->VerifyAndDecodeWithKid(*compact, *validator, |
| /*kid=*/absl::nullopt); |
| ASSERT_THAT(verified_jwt, IsOk()); |
| EXPECT_THAT(verified_jwt->GetTypeHeader(), IsOkAndHolds("typeHeader")); |
| EXPECT_THAT(verified_jwt->GetJwtId(), IsOkAndHolds("id123")); |
| |
| // Fails because kid header is not present |
| EXPECT_THAT( |
| jwt_verify_->VerifyAndDecodeWithKid(*compact, *validator, "kid-123") |
| .status(), |
| Not(IsOk())); |
| |
| // Fails with wrong issuer |
| util::StatusOr<JwtValidator> validator2 = |
| JwtValidatorBuilder().ExpectIssuer("unknown").Build(); |
| ASSERT_THAT(validator2, IsOk()); |
| EXPECT_FALSE( |
| jwt_verify_ |
| ->VerifyAndDecodeWithKid(*compact, *validator2, /*kid=*/absl::nullopt) |
| .ok()); |
| |
| // Fails because token is not yet valid |
| util::StatusOr<JwtValidator> validator_1970 = |
| JwtValidatorBuilder().SetFixedNow(absl::FromUnixSeconds(12345)).Build(); |
| ASSERT_THAT(validator_1970, IsOk()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid(*compact, *validator_1970, |
| /*kid=*/absl::nullopt) |
| .ok()); |
| } |
| |
| TEST_F(JwtSignatureImplTest, CreateAndValidateTokenWithKid) { |
| absl::Time now = absl::Now(); |
| util::StatusOr<RawJwt> raw_jwt = RawJwtBuilder() |
| .SetTypeHeader("typeHeader") |
| .SetJwtId("id123") |
| .SetNotBefore(now - absl::Seconds(300)) |
| .SetIssuedAt(now) |
| .SetExpiration(now + absl::Seconds(300)) |
| .Build(); |
| ASSERT_THAT(raw_jwt, IsOk()); |
| |
| util::StatusOr<std::string> compact = |
| jwt_sign_->SignAndEncodeWithKid(*raw_jwt, "kid-123"); |
| ASSERT_THAT(compact, IsOk()); |
| |
| util::StatusOr<JwtValidator> validator = |
| JwtValidatorBuilder().ExpectTypeHeader("typeHeader").Build(); |
| |
| util::StatusOr<VerifiedJwt> verified_jwt = |
| jwt_verify_->VerifyAndDecodeWithKid(*compact, *validator, "kid-123"); |
| ASSERT_THAT(verified_jwt, IsOk()); |
| EXPECT_THAT(verified_jwt->GetTypeHeader(), IsOkAndHolds("typeHeader")); |
| EXPECT_THAT(verified_jwt->GetJwtId(), IsOkAndHolds("id123")); |
| |
| // Kid header in the token is ignored. |
| EXPECT_THAT( |
| jwt_verify_ |
| ->VerifyAndDecodeWithKid(*compact, *validator, /*kid=*/absl::nullopt) |
| .status(), |
| IsOk()); |
| |
| // parse header to make sure the kid value is set correctly. |
| std::vector<absl::string_view> parts = absl::StrSplit(*compact, '.'); |
| ASSERT_THAT(parts.size(), Eq(3)); |
| std::string json_header; |
| ASSERT_TRUE(DecodeHeader(parts[0], &json_header)); |
| util::StatusOr<google::protobuf::Struct> header = |
| JsonStringToProtoStruct(json_header); |
| ASSERT_THAT(header, IsOk()); |
| EXPECT_THAT(header->fields().find("kid")->second.string_value(), |
| Eq("kid-123")); |
| } |
| |
| TEST_F(JwtSignatureImplTest, FailsWithModifiedCompact) { |
| util::StatusOr<RawJwt> raw_jwt = |
| RawJwtBuilder().SetJwtId("id123").WithoutExpiration().Build(); |
| ASSERT_THAT(raw_jwt, IsOk()); |
| |
| util::StatusOr<std::string> compact = |
| jwt_sign_->SignAndEncodeWithKid(*raw_jwt, /*kid=*/absl::nullopt); |
| ASSERT_THAT(compact, IsOk()); |
| util::StatusOr<JwtValidator> validator = |
| JwtValidatorBuilder().AllowMissingExpiration().Build(); |
| ASSERT_THAT(validator, IsOk()); |
| |
| EXPECT_THAT( |
| jwt_verify_ |
| ->VerifyAndDecodeWithKid(*compact, *validator, /*kid=*/absl::nullopt) |
| .status(), |
| IsOk()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid(absl::StrCat(*compact, "x"), |
| *validator, |
| /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid(absl::StrCat(*compact, " "), |
| *validator, |
| /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid(absl::StrCat("x", *compact), |
| *validator, |
| /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid(absl::StrCat(" ", *compact), |
| *validator, |
| /*kid=*/absl::nullopt) |
| .ok()); |
| } |
| |
| TEST_F(JwtSignatureImplTest, FailsWithInvalidTokens) { |
| util::StatusOr<JwtValidator> validator = |
| JwtValidatorBuilder().AllowMissingExpiration().Build(); |
| ASSERT_THAT(validator, IsOk()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid("eyJhbGciOiJIUzI1NiJ9.e30.YWJj.", |
| *validator, /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid("eyJhbGciOiJIUzI1NiJ9?.e30.YWJj", |
| *validator, /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid("eyJhbGciOiJIUzI1NiJ9.e30?.YWJj", |
| *validator, /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid("eyJhbGciOiJIUzI1NiJ9.e30.YWJj?", |
| *validator, /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE(jwt_verify_ |
| ->VerifyAndDecodeWithKid("eyJhbGciOiJIUzI1NiJ9.YWJj", |
| *validator, |
| /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE( |
| jwt_verify_->VerifyAndDecodeWithKid("", *validator, /*kid=*/absl::nullopt) |
| .ok()); |
| EXPECT_FALSE( |
| jwt_verify_ |
| ->VerifyAndDecodeWithKid("..", *validator, /*kid=*/absl::nullopt) |
| |
| .ok()); |
| } |
| |
| } // namespace |
| } // namespace jwt_internal |
| } // namespace tink |
| } // namespace crypto |
