44 lines
1022 B
C
44 lines
1022 B
C
/*
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* SPDX-FileCopyrightText: 2025 William Bell
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#ifdef _WIN32
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#include <windows.h>
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#include <bcrypt.h>
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#else
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#include <fcntl.h>
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#include <unistd.h>
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#endif
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#include <stdint.h>
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#include <stdio.h>
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#include "siphash/siphash.h"
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#include "hash_data.h"
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uint8_t siphash_key[16];
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const uint8_t siphash_key_fixed_for_translator[16] = {218, 19, 245, 136, 128, 160, 122, 81, 249, 147, 111, 230, 174, 145, 125 ,218};
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uint8_t empty_siphash_key[16];
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void generate_siphash_key(uint8_t hash_key[16]) {
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#ifdef _WIN32
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if (BCryptGenRandom(NULL, hash_key, 16, BCRYPT_USE_SYSTEM_PREFERRED_RNG) != 0) {
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// Fallback or abort
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}
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#else
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int fd = open("/dev/urandom", O_RDONLY);
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if (fd < 0 || read(fd, hash_key, 16) != 16) {
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// Fallback or abort
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}
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close(fd);
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#endif
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}
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uint64_t siphash64_bytes(const void *data, size_t len,const uint8_t hash_key[16]) {
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uint8_t out[8];
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if (siphash(data, len, hash_key, out, sizeof(out)) != 0)
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return 0;
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return *(uint64_t *)out;
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} |