82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <tap/basic.h>
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#include "crypto.h"
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#include "error.h"
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#include "random.h"
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int check_buffer(void)
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{
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const size_t buffer_size = 128;
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uint8_t buffer_prev[buffer_size];
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memset(buffer_prev, 0, buffer_size);
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uint8_t buffer[buffer_size];
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memset(buffer, 0, buffer_size);
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for (int i = 0; i < 10; i++) {
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int result = dnssec_random_buffer(buffer, buffer_size);
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if (result != DNSSEC_EOK) {
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return 1;
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}
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if (memcmp(buffer, buffer_prev, buffer_size) == 0) {
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return 1;
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}
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memmove(buffer_prev, buffer, buffer_size);
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}
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return 0;
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}
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int check_random_type(void)
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{
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uint16_t numbers[1000] = { 0 };
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int conflicts = 0;
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for (int i = 0; i < 1000; i++) {
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numbers[i] = dnssec_random_uint16_t();
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// check all previous
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for (int j = 0; j < i; j++) {
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if (numbers[i] == numbers[j]) {
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conflicts += 1;
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}
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}
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}
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// allow 5 % of conflicts
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return conflicts <= 50 ? 0 : 1;
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}
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int main(void)
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{
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plan_lazy();
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dnssec_crypto_init();
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// quite stupid, just check if it does something
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ok(check_buffer() == 0, "dnssec_random_buffer()");
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ok(check_random_type() == 0, "dnssec_random_uint16_t()");
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dnssec_crypto_cleanup();
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return 0;
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}
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