Files
MicrOBU/microbu-esp32c5/external/vanetza-idf/vanetza/security/tests/hmac.cpp
T
Ashin Walpola 0e9525162d Keep the colleague's microbu-esp32c5 tree in this repository
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but
that tree was gitignored, so a clone of this repository could not build the
firmware it ships. It is now committed here as ordinary files in its own
folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP
bridge's signature verification (--trust) used on the bench. Nothing is
fetched from or pushed to the colleague's repository; this repository and
its remotes carry everything. The folder's own .gitignore keeps build output,
downloaded components and private key material out, as it did there; the
committed file set is identical to that repository's tracked files.

The ESP32-C5 is still flashed from obu-firmware/, which only takes
vanetza-idf from microbu-esp32c5/, so the two stay separate folders.
FLASHING.md says how to take a newer version of the colleague's tree (copy
it over the folder, rebuild, test, commit).
2026-09-23 17:46:40 +02:00

78 lines
1.9 KiB
C++

#include <vanetza/common/byte_buffer.hpp>
#include <vanetza/security/hmac.hpp>
#include <gtest/gtest.h>
using namespace vanetza::security;
using vanetza::ByteBuffer;
class HmacTest : public ::testing::Test
{
protected:
ByteBuffer data = {0x01, 0x02, 0x03, 0x04, 0x05};
HmacKey key = {{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
}};
};
#if defined VANETZA_WITH_OPENSSL || defined VANETZA_WITH_CRYPTOPP
TEST_F(HmacTest, create_hmac_tag)
{
KeyTag tag = create_hmac_tag(data, key);
KeyTag zero = {};
EXPECT_NE(tag, zero);
}
TEST_F(HmacTest, deterministic)
{
KeyTag tag1 = create_hmac_tag(data, key);
KeyTag tag2 = create_hmac_tag(data, key);
EXPECT_EQ(tag1, tag2);
}
TEST_F(HmacTest, different_data_different_tag)
{
ByteBuffer other_data = {0x05, 0x04, 0x03, 0x02, 0x01};
KeyTag tag1 = create_hmac_tag(data, key);
KeyTag tag2 = create_hmac_tag(other_data, key);
EXPECT_NE(tag1, tag2);
}
TEST_F(HmacTest, different_key_different_tag)
{
HmacKey other_key = {};
KeyTag tag1 = create_hmac_tag(data, key);
KeyTag tag2 = create_hmac_tag(data, other_key);
EXPECT_NE(tag1, tag2);
}
#endif
#if defined VANETZA_WITH_OPENSSL
TEST_F(HmacTest, openssl)
{
KeyTag tag = create_hmac_tag_openssl(data, key);
KeyTag zero = {};
EXPECT_NE(tag, zero);
}
#endif
#if defined VANETZA_WITH_CRYPTOPP
TEST_F(HmacTest, cryptopp)
{
KeyTag tag = create_hmac_tag_cryptopp(data, key);
KeyTag zero = {};
EXPECT_NE(tag, zero);
}
#endif
#if defined VANETZA_WITH_OPENSSL && defined VANETZA_WITH_CRYPTOPP
TEST_F(HmacTest, openssl_and_cryptopp_match)
{
KeyTag tag_openssl = create_hmac_tag_openssl(data, key);
KeyTag tag_cryptopp = create_hmac_tag_cryptopp(data, key);
EXPECT_EQ(tag_openssl, tag_cryptopp);
}
#endif