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/*
* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include "internal/nelem.h"
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/obj_mac.h>
#include <openssl/evp.h>
#include <openssl/aes.h>
#include "../crypto/rand/rand_local.h"
#include "testutil.h"
#include "drbg_extra_test.h"
static unsigned char zerobuff[32];
static size_t kat_entropy(RAND_DRBG *drbg, unsigned char **pout,
int entropy, size_t min_len, size_t max_len,
int prediction_resistance)
{
*pout = zerobuff;
return sizeof(zerobuff);
}
static size_t kat_nonce(RAND_DRBG *drbg, unsigned char **pout,
int entropy, size_t min_len, size_t max_len)
{
*pout = zerobuff;
return sizeof(zerobuff);
}
static int run_extra_kat(const struct drbg_extra_kat *td)
{
unsigned long long i;
RAND_DRBG *drbg = NULL;
unsigned char buff[BUFFSIZE];
unsigned int flags = 0;
int failures = 0;
if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, flags, NULL)))
return 0;
/* Set deterministic entropy callback. */
if (!TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
kat_nonce, NULL))) {
failures++;
goto err;
}
/* Set fixed reseed intervall. */
if (!TEST_true(RAND_DRBG_set_reseed_interval(drbg, RESEEDINTERVAL))) {
failures++;
goto err;
}
if (!TEST_true(RAND_DRBG_instantiate(drbg, NULL, 0)))
failures++;
for (i = 0; i < td->ngen; i++) {
if(!TEST_true(RAND_DRBG_generate(drbg, buff, sizeof(buff), 0, NULL,
0)))
failures++;
}
if (!TEST_true(RAND_DRBG_uninstantiate(drbg))
|| !TEST_mem_eq(td->expected, sizeof(buff), buff, sizeof(buff)))
failures++;
err:
RAND_DRBG_uninstantiate(drbg);
RAND_DRBG_free(drbg);
return failures == 0;
}
static int test_extra_kats(int i)
{
return run_extra_kat(drbg_extra_test[i]);
}
int setup_tests(void)
{
ADD_ALL_TESTS(test_extra_kats, OSSL_NELEM(drbg_extra_test));
return 1;
}
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