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/*
* Copyright 2021 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 <openssl/evp.h>
#include <openssl/rand.h>
#include <openssl/bio.h>
#include <openssl/core_names.h>
#include "crypto/rand.h"
#include "testutil.h"
static int test_rand(void)
{
EVP_RAND_CTX *privctx;
const OSSL_PROVIDER *prov;
int indicator = 1;
OSSL_PARAM params[2], *p = params;
unsigned char entropy1[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
unsigned char entropy2[] = { 0xff, 0xfe, 0xfd };
unsigned char outbuf[3];
*p++ = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
entropy1, sizeof(entropy1));
*p = OSSL_PARAM_construct_end();
if (!TEST_ptr(privctx = RAND_get0_private(NULL))
|| !TEST_true(EVP_RAND_CTX_set_params(privctx, params))
|| !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
|| !TEST_mem_eq(outbuf, sizeof(outbuf), entropy1, sizeof(outbuf))
|| !TEST_int_le(RAND_priv_bytes(outbuf, sizeof(outbuf) + 1), 0)
|| !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
|| !TEST_mem_eq(outbuf, sizeof(outbuf),
entropy1 + sizeof(outbuf), sizeof(outbuf)))
return 0;
*params = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
entropy2, sizeof(entropy2));
if (!TEST_true(EVP_RAND_CTX_set_params(privctx, params))
|| !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
|| !TEST_mem_eq(outbuf, sizeof(outbuf), entropy2, sizeof(outbuf)))
return 0;
if (fips_provider_version_lt(NULL, 3, 4, 0)) {
/* Skip the rest and pass the test */
return 1;
}
/* Verify that the FIPS indicator can be read and is false */
prov = EVP_RAND_get0_provider(EVP_RAND_CTX_get0_rand(privctx));
if (prov != NULL
&& strcmp(OSSL_PROVIDER_get0_name(prov), "fips") == 0) {
params[0] = OSSL_PARAM_construct_int(OSSL_RAND_PARAM_FIPS_APPROVED_INDICATOR,
&indicator);
if (!TEST_true(EVP_RAND_CTX_get_params(privctx, params))
|| !TEST_int_eq(indicator, 0))
return 0;
}
return 1;
}
static int test_rand_uniform(void)
{
uint32_t x, i, j;
int err = 0, res = 0;
OSSL_LIB_CTX *ctx;
if (!test_get_libctx(&ctx, NULL, NULL, NULL, NULL))
goto err;
for (i = 1; i < 100; i += 13) {
x = ossl_rand_uniform_uint32(ctx, i, &err);
if (!TEST_int_eq(err, 0)
|| !TEST_uint_ge(x, 0)
|| !TEST_uint_lt(x, i))
return 0;
}
for (i = 1; i < 100; i += 17)
for (j = i + 1; j < 150; j += 11) {
x = ossl_rand_range_uint32(ctx, i, j, &err);
if (!TEST_int_eq(err, 0)
|| !TEST_uint_ge(x, i)
|| !TEST_uint_lt(x, j))
return 0;
}
res = 1;
err:
OSSL_LIB_CTX_free(ctx);
return res;
}
int setup_tests(void)
{
char *configfile;
if (!TEST_ptr(configfile = test_get_argument(0))
|| !TEST_true(RAND_set_DRBG_type(NULL, "TEST-RAND", "fips=no",
NULL, NULL))
|| (fips_provider_version_ge(NULL, 3, 0, 8)
&& !TEST_true(OSSL_LIB_CTX_load_config(NULL, configfile))))
return 0;
ADD_TEST(test_rand);
ADD_TEST(test_rand_uniform);
return 1;
}
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