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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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9
crc16_ccitt.h
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@@ -22,9 +22,10 @@
typedef struct
{
uint16_t crc;
int seen_first;
} crc16_ccitt_ctx;
const uint16_t crc16_ccitt_table[8][256] = {
static const uint16_t crc16_ccitt_table[8][256] = {
{0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD,
0xE1CE, 0xF1EF, 0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, 0xA35A,
0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B,
@@ -184,4 +185,10 @@ AARU_EXPORT int AARU_CALL crc16_ccitt_update(crc16_ccitt_ctx *ctx,
AARU_EXPORT int AARU_CALL crc16_ccitt_final(crc16_ccitt_ctx *ctx, uint16_t *crc);
AARU_EXPORT void AARU_CALL crc16_ccitt_free(crc16_ccitt_ctx *ctx);
#if defined(__x86_64__) || defined(__amd64) || defined(_M_AMD64) || defined(_M_X64) || defined(__I386__) || \
defined(__i386__) || defined(__THW_INTEL) || defined(_M_IX86)
AARU_EXPORT TARGET_WITH_CLMUL int AARU_CALL crc16_ccitt_update_clmul(crc16_ccitt_ctx *ctx, const uint8_t *data,
uint32_t len);
#endif
#endif // AARU_CHECKSUMS_NATIVE_CRC16_H