コード例 #1
0
ファイル: cms.c プロジェクト: jedisct1/count-min-sketch
static uint64_t
cms_hash(const CMS * const cms, uint64_t hashes[2],
         const char * const item, const size_t item_len, const size_t k_i)
{
    if (unlikely(k_i < 2U)) {
        crypto_shorthash_siphash24((unsigned char *) &hashes[k_i],
                                   (const unsigned char *) item,
                                   item_len, cms->skeys[k_i]);
        return hashes[k_i];
    } else {
        return hashes[0] + (((uint64_t) k_i * hashes[1]) % 0xffffffffffffffc5);
    }
}
コード例 #2
0
int
crypto_shorthash(unsigned char *out, const unsigned char *in,
                 unsigned long long inlen, const unsigned char *k)
{
    return crypto_shorthash_siphash24(out, in, inlen, k);
}