43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
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* Copyright (c) 2017-2021 Digi International Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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* =======================================================================
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <cryptoauthlib.h>
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int main(void)
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{
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uint8_t random_number[32];
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bool is_locked = false;
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atcab_init(&cfg_ateccx08a_i2c_default);
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/* Check if config zone is locked */
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atcab_is_locked(LOCK_ZONE_CONFIG, &is_locked);
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if (!is_locked) {
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printf("**WARNING**: the cryptochip is currently not configured. Run "
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"cryptoauth_test and lock the Config Zone to be able to run this example.\n");
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atcab_release();
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return 1;
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}
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while (true) {
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atcab_random(random_number);
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write(STDOUT_FILENO, random_number, sizeof(random_number));
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}
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}
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