diff options
Diffstat (limited to 'src/lib/hash.c')
| -rw-r--r-- | src/lib/hash.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/lib/hash.c b/src/lib/hash.c index 62bbf2b8..903474df 100644 --- a/src/lib/hash.c +++ b/src/lib/hash.c @@ -74,8 +74,10 @@ uint16_t hash_len(enum hash_algo algo) { if (algo == HASH_CRC8) return CRC8_HASH_LEN; + if (algo == HASH_CRC16) return CRC16_HASH_LEN; + if (algo == HASH_CRC64) return CRC64_HASH_LEN; #ifdef HAVE_LIBGCRYPT @@ -101,6 +103,7 @@ void mem_hash(enum hash_algo algo, *(uint8_t *) dst = crc; return; } + if (algo == HASH_CRC16) { uint16_t crc = 0; @@ -108,6 +111,7 @@ void mem_hash(enum hash_algo algo, *(uint16_t *) dst = htobe16(crc); return; } + if (algo == HASH_CRC64) { uint64_t crc = 0; @@ -162,3 +166,14 @@ void str_hash(enum hash_algo algo, { return mem_hash(algo, dst, (const uint8_t *) str, strlen(str)); } + +uint64_t hash_mix64(uint64_t key) +{ + key ^= key >> 33; + key *= 0xff51afd7ed558ccdULL; + key ^= key >> 33; + key *= 0xc4ceb9fe1a85ec53ULL; + key ^= key >> 33; + + return key; +} |