xref: /freebsd/crypto/openssl/crypto/hashtable/hashfunc.c (revision e7be843b4a162e68651d3911f0357ed464915629) 
1 /*
2  * Copyright 2025 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (the "License").  You may not use
5  * this file except in compliance with the License.  You can obtain a copy
6  * in the file LICENSE in the source distribution or at
7  * https://www.openssl.org/source/license.html
8  *
9  */
10 
11 #include "internal/hashfunc.h"
12 
ossl_fnv1a_hash(uint8_t * key,size_t len)13 ossl_unused uint64_t ossl_fnv1a_hash(uint8_t *key, size_t len)
14 {
15     uint64_t hash = 0xcbf29ce484222325ULL;
16     size_t i;
17 
18     for (i = 0; i < len; i++) {
19         hash ^= key[i];
20         hash *= 0x00000100000001B3ULL;
21     }
22     return hash;
23 }
24