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Add PCLMUL implementation of CRC16-CCITT.

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This commit is contained in:
Natalia Portillo
2025-08-21 00:07:21 +01:00
parent 2e857b0240
commit b8a97a8a05
4 changed files with 262 additions and 2 deletions
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95
tests/crc16_ccitt.cpp
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@@ -137,3 +137,98 @@ TEST_F(crc16_ccittFixture, crc16_ccitt_auto_2352bytes)
EXPECT_EQ(crc, EXPECTED_CRC16_CCITT_2352BYTES);
}
#if defined(__x86_64__) || defined(__amd64) || defined(_M_AMD64) || defined(_M_X64) || defined(__I386__) || \
defined(__i386__) || defined(__THW_INTEL) || defined(_M_IX86)
TEST_F(crc16_ccittFixture, crc16_ccitt_clmul)
{
if(!have_clmul()) return;
crc16_ccitt_ctx *ctx = crc16_ccitt_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_ccitt_update_clmul(ctx, buffer, 1048576);
crc16_ccitt_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_CCITT);
}
TEST_F(crc16_ccittFixture, crc16_ccitt_clmul_misaligned)
{
if(!have_clmul()) return;
crc16_ccitt_ctx *ctx = crc16_ccitt_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_ccitt_update_clmul(ctx, buffer_misaligned + 1, 1048576);
crc16_ccitt_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_CCITT);
}
TEST_F(crc16_ccittFixture, crc16_ccitt_clmul_15bytes)
{
if(!have_clmul()) return;
crc16_ccitt_ctx *ctx = crc16_ccitt_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_ccitt_update_clmul(ctx, buffer, 15);
crc16_ccitt_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_CCITT_15BYTES);
}
TEST_F(crc16_ccittFixture, crc16_ccitt_clmul_31bytes)
{
if(!have_clmul()) return;
crc16_ccitt_ctx *ctx = crc16_ccitt_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_ccitt_update_clmul(ctx, buffer, 31);
crc16_ccitt_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_CCITT_31BYTES);
}
TEST_F(crc16_ccittFixture, crc16_ccitt_clmul_63bytes)
{
if(!have_clmul()) return;
crc16_ccitt_ctx *ctx = crc16_ccitt_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_ccitt_update_clmul(ctx, buffer, 63);
crc16_ccitt_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_CCITT_63BYTES);
}
TEST_F(crc16_ccittFixture, crc16_ccitt_clmul_2352bytes)
{
if(!have_clmul()) return;
crc16_ccitt_ctx *ctx = crc16_ccitt_init();
uint16_t crc;
EXPECT_NE(ctx, nullptr);
crc16_ccitt_update_clmul(ctx, buffer, 2352);
crc16_ccitt_final(ctx, &crc);
EXPECT_EQ(crc, EXPECTED_CRC16_CCITT_2352BYTES);
}
#endif