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Diffstat (limited to 'epid/member/unittests/privateexp-test.cc')
| -rw-r--r-- | epid/member/unittests/privateexp-test.cc | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/epid/member/unittests/privateexp-test.cc b/epid/member/unittests/privateexp-test.cc new file mode 100644 index 0000000..5f413cb --- /dev/null +++ b/epid/member/unittests/privateexp-test.cc @@ -0,0 +1,155 @@ +/*############################################################################ + # Copyright 2017 Intel Corporation +# +# 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. +############################################################################*/ +/// EpidPrivateExp unit tests. +/*! \file */ +#include "epid/common-testhelper/epid_gtest-testhelper.h" +#include "gtest/gtest.h" + +extern "C" { +#include "epid/member/src/privateexp.h" +} + +#include "epid/common-testhelper/epid2params_wrapper-testhelper.h" +#include "epid/common-testhelper/epid_params-testhelper.h" +#include "epid/common-testhelper/errors-testhelper.h" +#include "epid/common-testhelper/prng-testhelper.h" +#include "epid/member/unittests/member-testhelper.h" + +namespace { + +//////////////////////////////////////////////// +// EpidPrivateExp +TEST_F(EpidMemberTest, EpidPrivateExpFailsGivenNullPointer) { + Prng my_prng; + Epid2ParamsObj epid2params; + MemberCtxObj member(&Prng::Generate, &my_prng); + THROW_ON_EPIDERR(EpidMemberSetHashAlg(member, kSha256)); + THROW_ON_EPIDERR(EpidProvisionKey(member, &this->kGroupPublicKey, + &this->kMemberPrivateKey, + &this->kMemberPrecomp)); + THROW_ON_EPIDERR(EpidMemberStartup(member)); + + Epid20Params params; + EcPointObj a(¶ms.G1, this->kGroupPublicKey.h1), r(¶ms.G1); + + EXPECT_EQ(kEpidBadArgErr, EpidPrivateExp(nullptr, a, r)); + EXPECT_EQ(kEpidBadArgErr, EpidPrivateExp(member, nullptr, r)); + EXPECT_EQ(kEpidBadArgErr, EpidPrivateExp(member, a, nullptr)); +} + +TEST_F(EpidMemberTest, EpidPrivateExpFailsArgumentsMismatch) { + Prng my_prng; + Epid2ParamsObj epid2params; + MemberCtxObj member(&Prng::Generate, &my_prng); + THROW_ON_EPIDERR(EpidMemberSetHashAlg(member, kSha256)); + THROW_ON_EPIDERR(EpidProvisionKey(member, &this->kGroupPublicKey, + &this->kMemberPrivateKey, + &this->kMemberPrecomp)); + THROW_ON_EPIDERR(EpidMemberStartup(member)); + + Epid20Params params; + EcPointObj a(¶ms.G1, this->kGroupPublicKey.h1), r(¶ms.G1); + EcPointObj g2(¶ms.G2, this->kGroupPublicKey.w); + + EXPECT_EQ(kEpidBadArgErr, EpidPrivateExp(member, g2, r)); + EXPECT_EQ(kEpidBadArgErr, EpidPrivateExp(member, a, g2)); + EXPECT_EQ(kEpidBadArgErr, EpidPrivateExp(member, g2, g2)); +} + +TEST_F(EpidMemberTest, EpidPrivateExpSucceedsGivenValidParametersForSha256) { + Prng my_prng; + Epid2ParamsObj epid2params; + MemberCtxObj member(&Prng::Generate, &my_prng); + THROW_ON_EPIDERR(EpidMemberSetHashAlg(member, kSha256)); + THROW_ON_EPIDERR(EpidProvisionKey(member, &this->kGroupPublicKey, + &this->kMemberPrivateKey, + &this->kMemberPrecomp)); + THROW_ON_EPIDERR(EpidMemberStartup(member)); + + Epid20Params params; + EcPointObj a(¶ms.G1, this->kGroupPublicKey.h1), r(¶ms.G1), + r_expected(¶ms.G1); + + G1ElemStr r_str, r_expected_str; + + EXPECT_EQ(kEpidNoErr, EpidPrivateExp(member, a, r)); + + THROW_ON_EPIDERR(EcExp( + params.G1, a, (BigNumStr const*)&this->kMemberPrivateKey.f, r_expected)); + + THROW_ON_EPIDERR(WriteEcPoint(params.G1, r, &r_str, sizeof(r_str))); + THROW_ON_EPIDERR(WriteEcPoint(params.G1, r_expected, &r_expected_str, + sizeof(r_expected_str))); + EXPECT_EQ(r_expected_str, r_str); +} + +#ifndef TPM_TSS +TEST_F(EpidMemberTest, EpidPrivateExpSucceedsGivenValidParametersForSha384) { + Prng my_prng; + Epid2ParamsObj epid2params; + MemberCtxObj member(&Prng::Generate, &my_prng); + THROW_ON_EPIDERR(EpidMemberSetHashAlg(member, kSha384)); + THROW_ON_EPIDERR(EpidProvisionKey(member, &this->kGroupPublicKey, + &this->kMemberPrivateKey, + &this->kMemberPrecomp)); + THROW_ON_EPIDERR(EpidMemberStartup(member)); + + Epid20Params params; + EcPointObj a(¶ms.G1, this->kGroupPublicKey.h1), r(¶ms.G1), + r_expected(¶ms.G1); + + G1ElemStr r_str, r_expected_str; + + EXPECT_EQ(kEpidNoErr, EpidPrivateExp(member, a, r)); + + THROW_ON_EPIDERR(EcExp( + params.G1, a, (BigNumStr const*)&this->kMemberPrivateKey.f, r_expected)); + + THROW_ON_EPIDERR(WriteEcPoint(params.G1, r, &r_str, sizeof(r_str))); + THROW_ON_EPIDERR(WriteEcPoint(params.G1, r_expected, &r_expected_str, + sizeof(r_expected_str))); + EXPECT_EQ(r_expected_str, r_str); +} +#endif + +TEST_F(EpidMemberTest, + PROTECTED_EpidPrivateExpSucceedsByCredentialForSha256_EPS0) { + Prng my_prng; + Epid2ParamsObj epid2params; + MemberCtxObj member(&Prng::Generate, &my_prng); + BigNumStr const f_str = {0x7a, 0x57, 0x41, 0x5b, 0x85, 0x44, 0x0e, 0x2b, + 0xb3, 0xcc, 0xa7, 0x99, 0x6d, 0x19, 0x79, 0x45, + 0x04, 0xb8, 0x94, 0x07, 0x47, 0x14, 0xed, 0x8d, + 0xf4, 0x1e, 0x7d, 0xa0, 0x17, 0xc5, 0xc4, 0x10}; + THROW_ON_EPIDERR(EpidMemberSetHashAlg(member, kSha256)); + + Epid20Params params; + EcPointObj a(¶ms.G1, this->kGroupPublicKey.h1), r(¶ms.G1), + r_expected(¶ms.G1); + + G1ElemStr r_str, r_expected_str; + + EXPECT_EQ(kEpidNoErr, EpidPrivateExp(member, a, r)); + + THROW_ON_EPIDERR(EcExp(params.G1, a, (BigNumStr const*)&f_str, r_expected)); + + THROW_ON_EPIDERR(WriteEcPoint(params.G1, r, &r_str, sizeof(r_str))); + THROW_ON_EPIDERR(WriteEcPoint(params.G1, r_expected, &r_expected_str, + sizeof(r_expected_str))); + EXPECT_EQ(r_expected_str, r_str); +} + +} // namespace |