59 lines
2.5 KiB
C++
59 lines
2.5 KiB
C++
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#include <gtest/gtest.h>
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#include <vanetza/security/v3/certificate.hpp>
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#include <vanetza/security/v3/certificate_cache.hpp>
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#include <vanetza/security/sha.hpp>
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using namespace vanetza;
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using namespace vanetza::security;
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// implicit certificate (IEEE 1609.2 clause 6.4.5) with a dummy reconstruction value
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inline v3::Certificate fake_implicit_certificate()
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{
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v3::Certificate cert;
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cert->version = 3;
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cert->type = Vanetza_Security_CertificateType_implicit;
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cert->issuer.present = Vanetza_Security_IssuerIdentifier_PR_sha256AndDigest;
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std::array<char, 8> issuer_digest = { 1, 2, 3, 4, 5, 6, 7, 8 };
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OCTET_STRING_fromBuf(&cert->issuer.choice.sha256AndDigest, issuer_digest.data(), issuer_digest.size());
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cert->toBeSigned.id.present = Vanetza_Security_CertificateId_PR_none;
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std::array<char, 3> craca_id = { 0, 0, 0 };
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OCTET_STRING_fromBuf(&cert->toBeSigned.cracaId, craca_id.data(), craca_id.size());
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cert->toBeSigned.crlSeries = 0;
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cert->toBeSigned.validityPeriod.start = 0;
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cert->toBeSigned.validityPeriod.duration.present = Vanetza_Security_Duration_PR_minutes;
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cert->toBeSigned.validityPeriod.duration.choice.minutes = 10080;
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cert->toBeSigned.verifyKeyIndicator.present = Vanetza_Security_VerificationKeyIndicator_PR_reconstructionValue;
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cert->toBeSigned.verifyKeyIndicator.choice.reconstructionValue.present = Vanetza_Security_EccP256CurvePoint_PR_compressed_y_0;
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std::array<char, 32> dummy_point {};
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OCTET_STRING_fromBuf(
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&cert->toBeSigned.verifyKeyIndicator.choice.reconstructionValue.choice.compressed_y_0,
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dummy_point.data(), dummy_point.size()
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);
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cert.add_app_permission(aid::CA, ByteBuffer({ 1, 0, 0 }));
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return cert;
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}
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TEST(CertificateV3, cache)
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{
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v3::CertificateCache cache;
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cache.store(v3::fake_certificate());
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}
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TEST(CertificateV3, implicit_certificate_digest)
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{
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v3::Certificate cert = fake_implicit_certificate();
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ASSERT_TRUE(v3::is_canonical(*cert));
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// curve of a reconstructed key is unknown without the issuer certificate
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EXPECT_EQ(KeyType::Unspecified, cert.get_verification_key_type());
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// ECQV public key reconstruction is not supported
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EXPECT_FALSE(v3::get_public_key(*cert));
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// IEEE 1609.2 clause 5.3.2: SHA-256 over the canonical encoding
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const ByteBuffer encoded = cert.encode();
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const HashedId8 expected = create_hashed_id8(calculate_sha256_digest(encoded.data(), encoded.size()));
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auto digest = cert.calculate_digest();
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ASSERT_TRUE(digest);
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EXPECT_EQ(expected, *digest);
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}
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