81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
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#include <gtest/gtest.h>
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#include <vanetza/security/public_key.hpp>
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using namespace vanetza;
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using namespace vanetza::security;
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using namespace std;
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TEST(PublicKey, canonical_hexstring_y0)
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{
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PublicKey key;
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key.type = KeyType::NistP256;
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key.compression = KeyCompression::Y0;
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key.x = ByteBuffer(32, 0x00);
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EXPECT_EQ("02" + std::string(64, '0'), canonical_hexstring(key));
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}
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TEST(PublicKey, canonical_hexstring_y1)
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{
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PublicKey key;
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key.type = KeyType::BrainpoolP384r1;
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key.compression = KeyCompression::Y1;
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key.x = ByteBuffer(48, 0x00);
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EXPECT_EQ("03" + std::string(96, '0'), canonical_hexstring(key));
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}
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TEST(PublicKey, canonical_hexstring_encoding)
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{
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PublicKey key;
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key.type = KeyType::NistP256;
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key.compression = KeyCompression::Y0;
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key.x = {
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0x00, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd,
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0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32,
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0x10, 0xde, 0xad, 0xbe, 0xef, 0xca, 0xfe, 0xba,
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0xbe, 0x00, 0xff, 0x11, 0xee, 0x22, 0xdd, 0x33
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};
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auto expected = "02"
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"000123456789ABCD"
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"EFFEDCBA98765432"
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"10DEADBEEFCAFEBA"
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"BE00FF11EE22DD33";
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EXPECT_EQ(expected, canonical_hexstring(key));
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}
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TEST(PublicKey, canonical_hexstring_uncompressed_parity)
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{
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PublicKey key;
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key.type = KeyType::NistP256;
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key.compression = KeyCompression::NoCompression;
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key.x = ByteBuffer(32, 0xab);
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key.y = ByteBuffer(32, 0x04);
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EXPECT_EQ("02", canonical_hexstring(key).substr(0, 2));
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key.y = ByteBuffer(32, 0x05);
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EXPECT_EQ("03", canonical_hexstring(key).substr(0, 2));
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}
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TEST(PublicKey, canonical_hexstring_rejects_malformed)
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{
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PublicKey key;
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key.compression = KeyCompression::Y0;
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key.type = KeyType::Unspecified;
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key.x = ByteBuffer(32, 0xab);
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EXPECT_TRUE(canonical_hexstring(key).empty());
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key.type = KeyType::NistP256;
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key.x.clear();
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EXPECT_TRUE(canonical_hexstring(key).empty());
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key.x = ByteBuffer(31, 0xab);
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EXPECT_TRUE(canonical_hexstring(key).empty());
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key.x = ByteBuffer(32, 0xab);
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key.compression = KeyCompression::NoCompression;
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EXPECT_TRUE(canonical_hexstring(key).empty());
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key.y = ByteBuffer(31, 0x04);
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EXPECT_TRUE(canonical_hexstring(key).empty());
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}
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