| /*############################################################################ |
| # Copyright 2016-2017 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. |
| ############################################################################*/ |
| |
| /*! |
| * \file |
| * \brief EcdsaVerifyBuffer unit tests. |
| */ |
| |
| #include <cstdint> |
| #include <vector> |
| |
| #include "epid/common-testhelper/epid_gtest-testhelper.h" |
| #include "gtest/gtest.h" |
| |
| extern "C" { |
| #include "epid/common/math/ecdsa.h" |
| } |
| |
| namespace { |
| |
| /// Fill message buffer |
| /*! |
| |
| Fill a message buffer |
| |
| \param[in] buf |
| pointer to buffer to be filled |
| \param[in] buf_len |
| size of buffer in bytes |
| |
| \returns ::EpidStatus |
| */ |
| static EpidStatus fill_message(uint8_t* buf, size_t buf_len) { |
| if (!buf) return kEpidBadArgErr; |
| if (buf_len <= 0) return kEpidBadArgErr; |
| for (size_t n = 0; n < buf_len; n++) { |
| buf[n] = (uint8_t)n; |
| } |
| return kEpidNoErr; |
| } |
| class EcdsaVerifyBufferTest : public ::testing::Test { |
| public: |
| /// an Ecdsa key pair |
| /// Regular |
| static const EcdsaPrivateKey kPrivkey0; |
| static const EcdsaPublicKey kPubkey0; |
| /// an Ecdsa key pair |
| // Regular |
| static const EcdsaPrivateKey kPrivkey1; |
| static const EcdsaPublicKey kPubkey1; |
| /// a message |
| static const std::vector<uint8_t> kMsg0; |
| /// a message |
| static const std::vector<uint8_t> kMsg1; |
| /// signature of msg0 with privkey0 |
| static const EcdsaSignature kSig_msg0_key0; |
| /// signature of msg0 with privkey1 |
| static const EcdsaSignature kSig_msg0_key1; |
| /// signature of msg1 with privkey0 |
| static const EcdsaSignature kSig_msg1_key0; |
| /// signature of msg1 with privkey1 |
| static const EcdsaSignature kSig_msg1_key1; |
| /// signature of empty msg with privkey0 |
| static const EcdsaSignature kSig_emptymsg_key0; |
| /// signature of empty msg with privkey1 |
| static const EcdsaSignature kSig_emptymsg_key1; |
| /// signature of 1M msg with privkey0 |
| static const EcdsaSignature kSig_1Mmsg_key0; |
| /// signature of 1M msg with privkey1 |
| static const EcdsaSignature kSig_1Mmsg_key1; |
| }; |
| |
| const EcdsaPrivateKey EcdsaVerifyBufferTest::kPrivkey0 = { |
| 0xfc, 0x0e, 0x32, 0x3b, 0x5d, 0xf6, 0x95, 0x43, 0x99, 0x0f, 0x46, |
| 0x37, 0xb0, 0x19, 0xb3, 0xbb, 0xba, 0xd5, 0x91, 0x63, 0x2d, 0x4a, |
| 0x5a, 0x1e, 0xd8, 0x09, 0x4f, 0x44, 0xa9, 0x5c, 0xd8, 0x87, |
| }; |
| const EcdsaPublicKey EcdsaVerifyBufferTest::kPubkey0 = { |
| 0x32, 0x05, 0x28, 0x50, 0x53, 0x0c, 0x62, 0xdf, 0x17, 0xc7, 0xcb, |
| 0x8c, 0xd3, 0x6f, 0x05, 0xe8, 0xbb, 0xbb, 0x6a, 0xf4, 0x43, 0x82, |
| 0x59, 0xad, 0xd2, 0x56, 0x6c, 0x63, 0xde, 0x06, 0x37, 0x69, 0x7b, |
| 0x42, 0x9a, 0xda, 0x3c, 0x91, 0xf3, 0xc0, 0xdd, 0xc1, 0xd4, 0x9e, |
| 0xc2, 0x24, 0x32, 0x09, 0x07, 0x8c, 0xb9, 0xfc, 0xd8, 0x7b, 0x69, |
| 0xf9, 0x17, 0x1e, 0x35, 0xb4, 0x20, 0x23, 0x45, 0x94, |
| }; |
| |
| const EcdsaPrivateKey EcdsaVerifyBufferTest::kPrivkey1 = { |
| 0xd6, 0x5a, 0x82, 0x5d, 0xd4, 0xad, 0x28, 0x6f, 0x09, 0x2c, 0x96, |
| 0x07, 0x0a, 0x96, 0xac, 0x13, 0xc9, 0xfd, 0xcf, 0xf0, 0xbe, 0x08, |
| 0xcb, 0xbb, 0x4b, 0xba, 0x7e, 0x9e, 0xac, 0x02, 0xe9, 0x7c, |
| }; |
| const EcdsaPublicKey EcdsaVerifyBufferTest::kPubkey1 = { |
| 0x34, 0xb0, 0x88, 0xcc, 0xb7, 0xf3, 0x56, 0xe0, 0x5c, 0x7c, 0xfc, |
| 0x03, 0x5d, 0x62, 0x72, 0xe4, 0x70, 0x08, 0xcd, 0x6f, 0x4b, 0x29, |
| 0x0e, 0x2d, 0x86, 0x26, 0x93, 0x52, 0x55, 0xef, 0xb4, 0x45, 0x11, |
| 0x07, 0xe9, 0xbe, 0x1e, 0x5d, 0xdb, 0x92, 0x64, 0xb6, 0xbf, 0x67, |
| 0x83, 0x1f, 0xde, 0xaa, 0x72, 0x84, 0xe9, 0x27, 0x5c, 0xd5, 0xbc, |
| 0x82, 0x07, 0xc9, 0x81, 0xd1, 0x70, 0x07, 0xaa, 0xd5, |
| }; |
| |
| const std::vector<uint8_t> EcdsaVerifyBufferTest::kMsg0 = {'m', 's', 'g', '0'}; |
| const std::vector<uint8_t> EcdsaVerifyBufferTest::kMsg1 = {'m', 's', 'g', '1'}; |
| |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_msg0_key0 = { |
| 0x81, 0xDD, 0x1A, 0x18, 0x35, 0x1E, 0x22, 0x99, 0x85, 0xC5, 0xAA, |
| 0xE4, 0x78, 0x02, 0xC5, 0x65, 0xF1, 0x39, 0x80, 0x45, 0xF5, 0xFC, |
| 0xBD, 0xC6, 0x67, 0xBD, 0xC1, 0x93, 0x42, 0xF6, 0x17, 0x0E, 0x45, |
| 0x19, 0x39, 0xD3, 0x27, 0x1F, 0xA9, 0x2A, 0x14, 0xDD, 0xF1, 0x5A, |
| 0x81, 0xA8, 0xEC, 0x3B, 0xB4, 0x0B, 0xF8, 0xC9, 0x9A, 0x06, 0xEB, |
| 0x04, 0x77, 0x19, 0xCB, 0x57, 0x9C, 0xB9, 0xE9, 0x2F, |
| }; |
| |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_msg0_key1 = { |
| 0xA9, 0xFC, 0x44, 0x2D, 0x09, 0x9E, 0x15, 0x6C, 0x25, 0xD9, 0x74, |
| 0x9D, 0xD9, 0xAD, 0xC2, 0x7A, 0xFB, 0xC0, 0xD4, 0xFE, 0xC2, 0x48, |
| 0x41, 0x80, 0x47, 0x4A, 0x74, 0x8A, 0x62, 0x71, 0x68, 0xFF, 0x51, |
| 0xDF, 0x47, 0x76, 0xAB, 0xD7, 0xE2, 0xA0, 0x97, 0x6B, 0x04, 0x51, |
| 0x2B, 0x8F, 0x4D, 0x7E, 0xDB, 0x7B, 0x60, 0x08, 0xC6, 0x51, 0x81, |
| 0x5E, 0x92, 0x9E, 0x11, 0xDB, 0x9C, 0x16, 0x64, 0x79, |
| }; |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_msg1_key0 = { |
| 0xA4, 0xD7, 0xF9, 0x80, 0xBA, 0x93, 0x25, 0xA4, 0x43, 0xD4, 0xCE, |
| 0x6F, 0x7C, 0xD9, 0xA9, 0xD2, 0x24, 0x1B, 0xB8, 0x32, 0xDE, 0xE0, |
| 0x26, 0x01, 0xA6, 0xC8, 0x57, 0x21, 0xD7, 0x1E, 0xBC, 0x88, 0xA2, |
| 0x27, 0x8B, 0x51, 0x93, 0x90, 0xC0, 0x0A, 0x3B, 0xA4, 0x7A, 0x9B, |
| 0x8C, 0x5E, 0xC8, 0x8B, 0x39, 0x5F, 0x3D, 0x82, 0xCE, 0x57, 0x9F, |
| 0xF7, 0x9A, 0x32, 0x82, 0xEF, 0xF8, 0xC5, 0x8B, 0x22, |
| }; |
| |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_msg1_key1 = { |
| 0xC1, 0x0A, 0x01, 0xB3, 0x81, 0x47, 0x02, 0xA4, 0xD2, 0xB1, 0xD6, |
| 0xF9, 0x25, 0x1F, 0xDF, 0x16, 0x7F, 0x28, 0x7F, 0x04, 0x38, 0xAE, |
| 0x6D, 0x6E, 0xE7, 0xFC, 0xCB, 0x9E, 0xB6, 0xA4, 0xF6, 0x41, 0x2B, |
| 0xEA, 0x6B, 0x53, 0x32, 0x7B, 0xB0, 0xB6, 0x8F, 0x21, 0x07, 0x0A, |
| 0x4C, 0xB7, 0xA9, 0xDE, 0x9F, 0x27, 0x3A, 0xEE, 0x4F, 0xE2, 0xF4, |
| 0xE3, 0x1E, 0xC3, 0x3F, 0xAA, 0x41, 0xD4, 0xFA, 0xA2, |
| }; |
| |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_emptymsg_key0 = { |
| 0xB7, 0xDC, 0x55, 0x35, 0x12, 0xB9, 0xAE, 0x59, 0xAE, 0xE1, 0xB5, |
| 0x50, 0x20, 0x65, 0x18, 0x84, 0x3B, 0x1E, 0x54, 0xF4, 0x11, 0x4B, |
| 0x71, 0xBD, 0x12, 0x5E, 0x05, 0x41, 0xAB, 0x6A, 0xF9, 0x20, 0x26, |
| 0xC9, 0x2B, 0x21, 0x56, 0x62, 0x3F, 0xC3, 0x62, 0xA0, 0xD2, 0x9D, |
| 0x27, 0x97, 0xF8, 0xE2, 0x59, 0xE7, 0x0E, 0x7E, 0xEE, 0xA7, 0xB5, |
| 0x11, 0x66, 0xD0, 0xF3, 0x6E, 0x41, 0x76, 0x3C, 0xFE, |
| }; |
| |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_emptymsg_key1 = { |
| 0xCB, 0xED, 0xEF, 0xEE, 0x11, 0x68, 0x21, 0x7D, 0x57, 0x4A, 0x37, |
| 0xB1, 0x96, 0xF0, 0xF8, 0x42, 0x46, 0x00, 0x64, 0xEF, 0x19, 0xA7, |
| 0xFF, 0x38, 0x8F, 0x3A, 0x25, 0xD5, 0xC4, 0xF3, 0xD0, 0xC4, 0xB0, |
| 0xC4, 0xC5, 0xB0, 0x58, 0xAD, 0x74, 0xF2, 0x19, 0xEE, 0x0C, 0x98, |
| 0x6D, 0x5F, 0x4F, 0xB7, 0x9A, 0xE8, 0x25, 0x1B, 0xAD, 0x9E, 0x26, |
| 0x22, 0xF2, 0xED, 0xB1, 0x8D, 0x3B, 0x02, 0x7F, 0xB1, |
| }; |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_1Mmsg_key0 = { |
| 0x4A, 0x45, 0xE3, 0xA5, 0xFC, 0x73, 0x86, 0xAF, 0xD8, 0x21, 0x25, |
| 0x35, 0x13, 0xEB, 0x1B, 0xA7, 0x39, 0x08, 0x21, 0x2A, 0x2A, 0x09, |
| 0x79, 0x3C, 0xEA, 0x17, 0x67, 0x53, 0x6C, 0xE4, 0xA0, 0x97, 0x36, |
| 0x98, 0x79, 0x69, 0x1C, 0xF1, 0x21, 0x42, 0x56, 0x48, 0x38, 0x35, |
| 0x3C, 0xC1, 0x30, 0x7C, 0x49, 0x4F, 0xC9, 0xFA, 0xE1, 0x69, 0xF9, |
| 0x42, 0x3D, 0x7D, 0x4B, 0x6D, 0xB1, 0xEE, 0x9D, 0x4B, |
| }; |
| |
| const EcdsaSignature EcdsaVerifyBufferTest::kSig_1Mmsg_key1 = { |
| 0x87, 0xE0, 0x27, 0x51, 0xC1, 0x16, 0x79, 0x8F, 0xCF, 0x82, 0x60, |
| 0x48, 0x72, 0x04, 0xE1, 0xC4, 0xDA, 0xEE, 0x31, 0x4D, 0x12, 0xF9, |
| 0xCA, 0x19, 0x1B, 0xDC, 0xA4, 0xCA, 0x8C, 0xCC, 0xBD, 0x2A, 0xD4, |
| 0x73, 0x2B, 0x6B, 0xE4, 0x9B, 0xA1, 0x56, 0xF2, 0x28, 0x4A, 0xBD, |
| 0x41, 0x69, 0x98, 0xAB, 0x62, 0x3D, 0x8D, 0xC9, 0x77, 0xE1, 0x98, |
| 0xF1, 0x53, 0xF5, 0xD0, 0x97, 0x80, 0x89, 0xCB, 0x97, |
| }; |
| TEST_F(EcdsaVerifyBufferTest, FailsGivenNullParameters) { |
| // tests using a trivial message |
| EXPECT_EQ(kEpidBadArgErr, |
| EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), &kPubkey0, nullptr)); |
| EXPECT_EQ(kEpidBadArgErr, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| nullptr, &kSig_msg0_key0)); |
| // tests using a null message |
| EXPECT_EQ(kEpidBadArgErr, EcdsaVerifyBuffer(nullptr, 0, &kPubkey0, nullptr)); |
| EXPECT_EQ(kEpidBadArgErr, |
| EcdsaVerifyBuffer(nullptr, 0, nullptr, &kSig_msg0_key0)); |
| } |
| |
| TEST_F(EcdsaVerifyBufferTest, VerifiesZeroLengthMsg) { |
| // tests using a non-null message buffer |
| EXPECT_EQ(kEpidSigValid, |
| EcdsaVerifyBuffer(kMsg0.data(), 0, &kPubkey0, &kSig_emptymsg_key0)); |
| EXPECT_EQ(kEpidSigValid, |
| EcdsaVerifyBuffer(kMsg0.data(), 0, &kPubkey1, &kSig_emptymsg_key1)); |
| // tests using a null message buffer |
| EXPECT_EQ(kEpidSigValid, |
| EcdsaVerifyBuffer(nullptr, 0, &kPubkey0, &kSig_emptymsg_key0)); |
| EXPECT_EQ(kEpidSigValid, |
| EcdsaVerifyBuffer(nullptr, 0, &kPubkey1, &kSig_emptymsg_key1)); |
| } |
| |
| TEST_F(EcdsaVerifyBufferTest, VerifiesShortMessage) { |
| EXPECT_EQ(kEpidSigValid, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| &kPubkey0, &kSig_msg0_key0)); |
| EXPECT_EQ(kEpidSigValid, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| &kPubkey1, &kSig_msg0_key1)); |
| EXPECT_EQ(kEpidSigValid, EcdsaVerifyBuffer(kMsg1.data(), kMsg1.size(), |
| &kPubkey0, &kSig_msg1_key0)); |
| EXPECT_EQ(kEpidSigValid, EcdsaVerifyBuffer(kMsg1.data(), kMsg1.size(), |
| &kPubkey1, &kSig_msg1_key1)); |
| } |
| |
| TEST_F(EcdsaVerifyBufferTest, VerifiesLongMessage) { |
| std::vector<uint8_t> msg_1mb(0x100000); |
| fill_message(msg_1mb.data(), msg_1mb.size()); |
| EXPECT_EQ(kEpidSigValid, EcdsaVerifyBuffer(msg_1mb.data(), msg_1mb.size(), |
| &kPubkey0, &kSig_1Mmsg_key0)); |
| EXPECT_EQ(kEpidSigValid, EcdsaVerifyBuffer(msg_1mb.data(), msg_1mb.size(), |
| &kPubkey1, &kSig_1Mmsg_key1)); |
| } |
| |
| TEST_F(EcdsaVerifyBufferTest, FailsGivenWrongKey) { |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| &kPubkey1, &kSig_msg0_key0)); |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| &kPubkey0, &kSig_msg0_key1)); |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg1.data(), kMsg1.size(), |
| &kPubkey1, &kSig_msg1_key0)); |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg1.data(), kMsg1.size(), |
| &kPubkey0, &kSig_msg1_key1)); |
| } |
| |
| TEST_F(EcdsaVerifyBufferTest, FailsGivenWrongMsg) { |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg1.data(), kMsg1.size(), |
| &kPubkey0, &kSig_msg0_key0)); |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg1.data(), kMsg1.size(), |
| &kPubkey1, &kSig_msg0_key1)); |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| &kPubkey0, &kSig_msg1_key0)); |
| EXPECT_EQ(kEpidSigInvalid, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| &kPubkey1, &kSig_msg1_key1)); |
| } |
| |
| TEST_F(EcdsaVerifyBufferTest, FailsGivenInvalidKey) { |
| // define a public key with the high half set to all FF. This will |
| // not be on the curve specified for this API |
| EcdsaPublicKey invalid_pubkey = kPubkey0; |
| for (size_t i = 0; i < sizeof(invalid_pubkey.x); i++) { |
| invalid_pubkey.x.data[i] = 0xff; |
| } |
| EXPECT_EQ(kEpidBadArgErr, |
| EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), &invalid_pubkey, |
| &kSig_msg0_key0)); |
| EXPECT_EQ(kEpidBadArgErr, |
| EcdsaVerifyBuffer(kMsg1.data(), kMsg1.size(), &invalid_pubkey, |
| &kSig_msg1_key0)); |
| } |
| |
| TEST_F(EcdsaVerifyBufferTest, FailsGivenInvalidSignature) { |
| // define a signature with the high half set to all FF. This will |
| // not be on the curve specified for this API |
| EcdsaSignature invalid_sig = kSig_msg0_key0; |
| for (size_t i = 0; i < sizeof(invalid_sig.x); i++) { |
| invalid_sig.x.data[i] = 0xff; |
| } |
| EXPECT_EQ(kEpidBadArgErr, EcdsaVerifyBuffer(kMsg0.data(), kMsg0.size(), |
| &kPubkey0, &invalid_sig)); |
| } |
| |
| } // namespace |
