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- /*############################################################################
- # Copyright 2016 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.
- ############################################################################*/
- /*!
- * \file
- * \brief ComputePreSig unit tests.
- */
- #include "gtest/gtest.h"
- extern "C" {
- #include "epid/member/api.h"
- #include "epid/member/src/context.h"
- }
- #include "epid/member/unittests/member-testhelper.h"
- #include "epid/common-testhelper/prng-testhelper.h"
- #include "epid/common-testhelper/errors-testhelper.h"
- #include "epid/common-testhelper/finite_field_wrapper-testhelper.h"
- #include "epid/common-testhelper/ffelement_wrapper-testhelper.h"
- #include "epid/common-testhelper/epid_params-testhelper.h"
- namespace {
- TEST_F(EpidMemberTest, ComputePreSigFailsGivenNullPointer) {
- Prng my_prng;
- MemberCtxObj member(this->kGroupPublicKey, this->kMemberPrivateKey,
- this->kMemberPrecomp, &Prng::Generate, &my_prng);
- PreComputedSignature presig;
- EXPECT_EQ(kEpidBadArgErr, EpidComputePreSig(nullptr, &presig));
- EXPECT_EQ(kEpidBadArgErr, EpidComputePreSig(member, nullptr));
- }
- TEST_F(EpidMemberTest,
- ComputePreSigGeneratedPreComputedSignatureCanBeDeserialized) {
- const BigNumStr p_str = {
- {{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xF0, 0xCD, 0x46, 0xE5, 0xF2, 0x5E,
- 0xEE, 0x71, 0xA4, 0x9E, 0x0C, 0xDC, 0x65, 0xFB, 0x12, 0x99, 0x92, 0x1A,
- 0xF6, 0x2D, 0x53, 0x6C, 0xD1, 0x0B, 0x50, 0x0D}}};
- Prng my_prng;
- MemberCtxObj member(this->kGroupPublicKey, this->kMemberPrivateKey,
- this->kMemberPrecomp, &Prng::Generate, &my_prng);
- PreComputedSignature presig;
- EXPECT_EQ(kEpidNoErr, EpidComputePreSig(member, &presig));
- Epid20Params params;
- FiniteFieldObj Fp(p_str);
- FfElementObj Fp_element(&Fp);
- FfElementObj GT_element(¶ms.GT);
- EcPointObj G1_pt(¶ms.G1);
- EXPECT_EQ(kEpidNoErr,
- ReadEcPoint(params.G1, &presig.B, sizeof(presig.B), G1_pt));
- EXPECT_EQ(kEpidNoErr,
- ReadEcPoint(params.G1, &presig.K, sizeof(presig.K), G1_pt));
- EXPECT_EQ(kEpidNoErr,
- ReadEcPoint(params.G1, &presig.T, sizeof(presig.T), G1_pt));
- EXPECT_EQ(kEpidNoErr,
- ReadEcPoint(params.G1, &presig.R1, sizeof(presig.R1), G1_pt));
- EXPECT_EQ(kEpidNoErr, ReadFfElement(params.GT, &presig.R2, sizeof(presig.R2),
- GT_element));
- EXPECT_EQ(kEpidNoErr,
- ReadFfElement(Fp, &presig.a, sizeof(presig.a), Fp_element));
- EXPECT_EQ(kEpidNoErr,
- ReadFfElement(Fp, &presig.b, sizeof(presig.b), Fp_element));
- EXPECT_EQ(kEpidNoErr,
- ReadFfElement(Fp, &presig.rx, sizeof(presig.rx), Fp_element));
- EXPECT_EQ(kEpidNoErr,
- ReadFfElement(Fp, &presig.rf, sizeof(presig.rf), Fp_element));
- EXPECT_EQ(kEpidNoErr,
- ReadFfElement(Fp, &presig.ra, sizeof(presig.ra), Fp_element));
- EXPECT_EQ(kEpidNoErr,
- ReadFfElement(Fp, &presig.rb, sizeof(presig.rb), Fp_element));
- }
- } // namespace
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