mirror/openssl
2
0
Fork 0
mirror of https://github.com/openssl/openssl.git synced 2024-12-27 06:21:43 +08:00
Code Issues Packages Projects Releases Wiki Activity
cd81ac7be3
openssl/test/drbgtest.c
Dr. Matthias St. Pierre 09066cf2a1 tests/drbgtest: use new RAND_DRBG callback_data API instead of ex_data 
It took me a little while to realize why the test_rand_drbg_reseed test
kept crashing after replacing the RAND_DRBG_{gs}et_ex_data() calls by
RAND_DRBG_{gs}et_callback_data().

The reason was that the ex_data API prohibits modifying the callbacks
or callback data of chained DRBGs and returned an error which was
ignored by the `test_rand_drbg_reseed` test, for good reasons.

The `test_rand_drbg_reseed` test is special in this respect, because
it needs to install callbacks for all DRBGs, in order to intercept
and count the reseeding events.

Since the drbgtest module has access to the internal structures of
the DRBG anyway, the problem could be solved by accessing the members
directly. I added a warning comment in hook_drbg().

[extended tests]

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10950)
2020-02-07 11:38:57 +01:00

1402 lines
45 KiB
C
Raw Blame History

/*
* Copyright 2011-2018 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 "../include/crypto/rand.h"
#if defined(_WIN32)
# include <windows.h>
#endif
#if defined(OPENSSL_SYS_UNIX)
# include <sys/types.h>
# include <sys/wait.h>
# include <unistd.h>
#endif
#include "testutil.h"
#include "drbgtest.h"
typedef struct drbg_selftest_data_st {
int post;
int nid;
unsigned int flags;
/* KAT data for no PR */
const unsigned char *entropy;
size_t entropylen;
const unsigned char *nonce;
size_t noncelen;
const unsigned char *pers;
size_t perslen;
const unsigned char *adin;
size_t adinlen;
const unsigned char *entropyreseed;
size_t entropyreseedlen;
const unsigned char *adinreseed;
size_t adinreseedlen;
const unsigned char *adin2;
size_t adin2len;
const unsigned char *expected;
size_t exlen;
const unsigned char *kat2;
size_t kat2len;
/* KAT data for PR */
const unsigned char *entropy_pr;
size_t entropylen_pr;
const unsigned char *nonce_pr;
size_t noncelen_pr;
const unsigned char *pers_pr;
size_t perslen_pr;
const unsigned char *adin_pr;
size_t adinlen_pr;
const unsigned char *entropypr_pr;
size_t entropyprlen_pr;
const unsigned char *ading_pr;
size_t adinglen_pr;
const unsigned char *entropyg_pr;
size_t entropyglen_pr;
const unsigned char *kat_pr;
size_t katlen_pr;
const unsigned char *kat2_pr;
size_t kat2len_pr;
} DRBG_SELFTEST_DATA;
#define make_drbg_test_data(nid, flag, pr, post) {\
post, nid, flag, \
pr##_entropyinput, sizeof(pr##_entropyinput), \
pr##_nonce, sizeof(pr##_nonce), \
pr##_personalizationstring, sizeof(pr##_personalizationstring), \
pr##_additionalinput, sizeof(pr##_additionalinput), \
pr##_entropyinputreseed, sizeof(pr##_entropyinputreseed), \
pr##_additionalinputreseed, sizeof(pr##_additionalinputreseed), \
pr##_additionalinput2, sizeof(pr##_additionalinput2), \
pr##_int_returnedbits, sizeof(pr##_int_returnedbits), \
pr##_returnedbits, sizeof(pr##_returnedbits), \
pr##_pr_entropyinput, sizeof(pr##_pr_entropyinput), \
pr##_pr_nonce, sizeof(pr##_pr_nonce), \
pr##_pr_personalizationstring, sizeof(pr##_pr_personalizationstring), \
pr##_pr_additionalinput, sizeof(pr##_pr_additionalinput), \
pr##_pr_entropyinputpr, sizeof(pr##_pr_entropyinputpr), \
pr##_pr_additionalinput2, sizeof(pr##_pr_additionalinput2), \
pr##_pr_entropyinputpr2, sizeof(pr##_pr_entropyinputpr2), \
pr##_pr_int_returnedbits, sizeof(pr##_pr_int_returnedbits), \
pr##_pr_returnedbits, sizeof(pr##_pr_returnedbits) \
}
#define make_drbg_test_data_use_df(nid, pr, p) \
make_drbg_test_data(nid, 0, pr, p)
#define make_drbg_test_data_no_df(nid, pr, p) \
make_drbg_test_data(nid, RAND_DRBG_FLAG_CTR_NO_DF, pr, p)
#define make_drbg_test_data_hash(nid, pr, p) \
make_drbg_test_data(nid, RAND_DRBG_FLAG_HMAC, hmac_##pr, p), \
make_drbg_test_data(nid, 0, pr, p)
static DRBG_SELFTEST_DATA drbg_test[] = {
#ifndef FIPS_MODE
/* FIPS mode doesn't support CTR DRBG without a derivation function */
make_drbg_test_data_no_df (NID_aes_128_ctr, aes_128_no_df, 0),
make_drbg_test_data_no_df (NID_aes_192_ctr, aes_192_no_df, 0),
make_drbg_test_data_no_df (NID_aes_256_ctr, aes_256_no_df, 1),
#endif
make_drbg_test_data_use_df(NID_aes_128_ctr, aes_128_use_df, 0),
make_drbg_test_data_use_df(NID_aes_192_ctr, aes_192_use_df, 0),
make_drbg_test_data_use_df(NID_aes_256_ctr, aes_256_use_df, 1),
make_drbg_test_data_hash(NID_sha1, sha1, 0),
make_drbg_test_data_hash(NID_sha224, sha224, 0),
make_drbg_test_data_hash(NID_sha256, sha256, 1),
make_drbg_test_data_hash(NID_sha384, sha384, 0),
make_drbg_test_data_hash(NID_sha512, sha512, 0),
};
/*
* Test context data, attached as EXDATA to the RAND_DRBG
*/
typedef struct test_ctx_st {
const unsigned char *entropy;
size_t entropylen;
int entropycnt;
const unsigned char *nonce;
size_t noncelen;
int noncecnt;
} TEST_CTX;
static size_t kat_entropy(RAND_DRBG *drbg, unsigned char **pout,
int entropy, size_t min_len, size_t max_len,
int prediction_resistance)
{
TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_callback_data(drbg);
t->entropycnt++;
*pout = (unsigned char *)t->entropy;
return t->entropylen;
}
static size_t kat_nonce(RAND_DRBG *drbg, unsigned char **pout,
int entropy, size_t min_len, size_t max_len)
{
TEST_CTX *t = (TEST_CTX *)RAND_DRBG_get_callback_data(drbg);
t->noncecnt++;
*pout = (unsigned char *)t->nonce;
return t->noncelen;
}
/*
* Disable CRNG testing if it is enabled.
* If the DRBG is ready or in an error state, this means an instantiate cycle
* for which the default personalisation string is used.
*/
static int disable_crngt(RAND_DRBG *drbg)
{
static const char pers[] = DRBG_DEFAULT_PERS_STRING;
const int instantiate = drbg->state != DRBG_UNINITIALISED;
if (drbg->get_entropy != rand_crngt_get_entropy)
return 1;
if ((instantiate && !RAND_DRBG_uninstantiate(drbg))
|| !TEST_true(RAND_DRBG_set_callbacks(drbg, &rand_drbg_get_entropy,
&rand_drbg_cleanup_entropy,
&rand_drbg_get_nonce,
&rand_drbg_cleanup_nonce))
|| (instantiate
&& !RAND_DRBG_instantiate(drbg, (const unsigned char *)pers,
sizeof(pers) - 1)))
return 0;
return 1;
}
static int uninstantiate(RAND_DRBG *drbg)
{
int ret = drbg == NULL ? 1 : RAND_DRBG_uninstantiate(drbg);
ERR_clear_error();
return ret;
}
/*
* Do a single KAT test. Return 0 on failure.
*/
static int single_kat(DRBG_SELFTEST_DATA *td)
{
RAND_DRBG *drbg = NULL;
TEST_CTX t;
int failures = 0;
unsigned char buff[1024];
/*
* Test without PR: Instantiate DRBG with test entropy, nonce and
* personalisation string.
*/
if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, td->flags, NULL)))
return 0;
if (!TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
kat_nonce, NULL))
|| !TEST_true(RAND_DRBG_set_callback_data(drbg, &t))
|| !TEST_true(disable_crngt(drbg))) {
failures++;
goto err;
}
memset(&t, 0, sizeof(t));
t.entropy = td->entropy;
t.entropylen = td->entropylen;
t.nonce = td->nonce;
t.noncelen = td->noncelen;
if (!TEST_true(RAND_DRBG_instantiate(drbg, td->pers, td->perslen))
|| !TEST_true(RAND_DRBG_generate(drbg, buff, td->exlen, 0,
td->adin, td->adinlen))
|| !TEST_mem_eq(td->expected, td->exlen, buff, td->exlen))
failures++;
/* Reseed DRBG with test entropy and additional input */
t.entropy = td->entropyreseed;
t.entropylen = td->entropyreseedlen;
if (!TEST_true(RAND_DRBG_reseed(drbg, td->adinreseed, td->adinreseedlen, 0)
|| !TEST_true(RAND_DRBG_generate(drbg, buff, td->kat2len, 0,
td->adin2, td->adin2len))
|| !TEST_mem_eq(td->kat2, td->kat2len, buff, td->kat2len)))
failures++;
uninstantiate(drbg);
/*
* Now test with PR: Instantiate DRBG with test entropy, nonce and
* personalisation string.
*/
if (!TEST_true(RAND_DRBG_set(drbg, td->nid, td->flags))
|| !TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
kat_nonce, NULL))
|| !TEST_true(RAND_DRBG_set_callback_data(drbg, &t)))
failures++;
t.entropy = td->entropy_pr;
t.entropylen = td->entropylen_pr;
t.nonce = td->nonce_pr;
t.noncelen = td->noncelen_pr;
t.entropycnt = 0;
t.noncecnt = 0;
if (!TEST_true(RAND_DRBG_instantiate(drbg, td->pers_pr, td->perslen_pr)))
failures++;
/*
* Now generate with PR: we need to supply entropy as this will
* perform a reseed operation.
*/
t.entropy = td->entropypr_pr;
t.entropylen = td->entropyprlen_pr;
if (!TEST_true(RAND_DRBG_generate(drbg, buff, td->katlen_pr, 1,
td->adin_pr, td->adinlen_pr))
|| !TEST_mem_eq(td->kat_pr, td->katlen_pr, buff, td->katlen_pr))
failures++;
/*
* Now generate again with PR: supply new entropy again.
*/
t.entropy = td->entropyg_pr;
t.entropylen = td->entropyglen_pr;
if (!TEST_true(RAND_DRBG_generate(drbg, buff, td->kat2len_pr, 1,
td->ading_pr, td->adinglen_pr))
|| !TEST_mem_eq(td->kat2_pr, td->kat2len_pr,
buff, td->kat2len_pr))
failures++;
err:
uninstantiate(drbg);
RAND_DRBG_free(drbg);
return failures == 0;
}
/*
* Initialise a DRBG based on selftest data
*/
static int init(RAND_DRBG *drbg, DRBG_SELFTEST_DATA *td, TEST_CTX *t)
{
if (!TEST_true(RAND_DRBG_set(drbg, td->nid, td->flags))
|| !TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
kat_nonce, NULL)))
return 0;
RAND_DRBG_set_callback_data(drbg, t);
t->entropy = td->entropy;
t->entropylen = td->entropylen;
t->nonce = td->nonce;
t->noncelen = td->noncelen;
t->entropycnt = 0;
t->noncecnt = 0;
return 1;
}
/*
* Initialise and instantiate DRBG based on selftest data
*/
static int instantiate(RAND_DRBG *drbg, DRBG_SELFTEST_DATA *td,
TEST_CTX *t)
{
if (!TEST_true(init(drbg, td, t))
|| !TEST_true(RAND_DRBG_instantiate(drbg, td->pers, td->perslen)))
return 0;
return 1;
}
/*
* Perform extensive error checking as required by SP800-90.
* Induce several failure modes and check an error condition is set.
*/
static int error_check(DRBG_SELFTEST_DATA *td)
{
static char zero[sizeof(RAND_DRBG)];
RAND_DRBG *drbg = NULL;
TEST_CTX t;
unsigned char buff[1024];
unsigned int reseed_counter_tmp;
int ret = 0;
if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, td->flags, NULL))
|| !TEST_true(disable_crngt(drbg)))
goto err;
/*
* Personalisation string tests
*/
/* Test detection of too large personalisation string */
if (!init(drbg, td, &t)
|| RAND_DRBG_instantiate(drbg, td->pers, drbg->max_perslen + 1) > 0)
goto err;
/*
* Entropy source tests
*/
/* Test entropy source failure detection: i.e. returns no data */
t.entropylen = 0;
if (TEST_int_le(RAND_DRBG_instantiate(drbg, td->pers, td->perslen), 0))
goto err;
/* Try to generate output from uninstantiated DRBG */
if (!TEST_false(RAND_DRBG_generate(drbg, buff, td->exlen, 0,
td->adin, td->adinlen))
|| !uninstantiate(drbg))
goto err;
/* Test insufficient entropy */
t.entropylen = drbg->min_entropylen - 1;
if (!init(drbg, td, &t)
|| RAND_DRBG_instantiate(drbg, td->pers, td->perslen) > 0
|| !uninstantiate(drbg))
goto err;
/* Test too much entropy */
t.entropylen = drbg->max_entropylen + 1;
if (!init(drbg, td, &t)
|| RAND_DRBG_instantiate(drbg, td->pers, td->perslen) > 0
|| !uninstantiate(drbg))
goto err;
/*
* Nonce tests
*/
/* Test too small nonce */
if (drbg->min_noncelen) {
t.noncelen = drbg->min_noncelen - 1;
if (!init(drbg, td, &t)
|| RAND_DRBG_instantiate(drbg, td->pers, td->perslen) > 0
|| !uninstantiate(drbg))
goto err;
}
/* Test too large nonce */
if (drbg->max_noncelen) {
t.noncelen = drbg->max_noncelen + 1;
if (!init(drbg, td, &t)
|| RAND_DRBG_instantiate(drbg, td->pers, td->perslen) > 0
|| !uninstantiate(drbg))
goto err;
}
/* Instantiate with valid data, Check generation is now OK */
if (!instantiate(drbg, td, &t)
|| !TEST_true(RAND_DRBG_generate(drbg, buff, td->exlen, 0,
td->adin, td->adinlen)))
goto err;
/* Request too much data for one request */
if (!TEST_false(RAND_DRBG_generate(drbg, buff, drbg->max_request + 1, 0,
td->adin, td->adinlen)))
goto err;
/* Try too large additional input */
if (!TEST_false(RAND_DRBG_generate(drbg, buff, td->exlen, 0,
td->adin, drbg->max_adinlen + 1)))
goto err;
/*
* Check prediction resistance request fails if entropy source
* failure.
*/
t.entropylen = 0;
if (TEST_false(RAND_DRBG_generate(drbg, buff, td->exlen, 1,
td->adin, td->adinlen))
|| !uninstantiate(drbg))
goto err;
/* Instantiate again with valid data */
if (!instantiate(drbg, td, &t))
goto err;
reseed_counter_tmp = drbg->reseed_gen_counter;
drbg->reseed_gen_counter = drbg->reseed_interval;
/* Generate output and check entropy has been requested for reseed */
t.entropycnt = 0;
if (!TEST_true(RAND_DRBG_generate(drbg, buff, td->exlen, 0,
td->adin, td->adinlen))
|| !TEST_int_eq(t.entropycnt, 1)
|| !TEST_int_eq(drbg->reseed_gen_counter, reseed_counter_tmp + 1)
|| !uninstantiate(drbg))
goto err;
/*
* Check prediction resistance request fails if entropy source
* failure.
*/
t.entropylen = 0;
if (!TEST_false(RAND_DRBG_generate(drbg, buff, td->exlen, 1,
td->adin, td->adinlen))
|| !uninstantiate(drbg))
goto err;
/* Test reseed counter works */
if (!instantiate(drbg, td, &t))
goto err;
reseed_counter_tmp = drbg->reseed_gen_counter;
drbg->reseed_gen_counter = drbg->reseed_interval;
/* Generate output and check entropy has been requested for reseed */
t.entropycnt = 0;
if (!TEST_true(RAND_DRBG_generate(drbg, buff, td->exlen, 0,
td->adin, td->adinlen))
|| !TEST_int_eq(t.entropycnt, 1)
|| !TEST_int_eq(drbg->reseed_gen_counter, reseed_counter_tmp + 1)
|| !uninstantiate(drbg))
goto err;
/*
* Explicit reseed tests
*/
/* Test explicit reseed with too large additional input */
if (!instantiate(drbg, td, &t)
|| RAND_DRBG_reseed(drbg, td->adin, drbg->max_adinlen + 1, 0) > 0)
goto err;
/* Test explicit reseed with entropy source failure */
t.entropylen = 0;
if (!TEST_int_le(RAND_DRBG_reseed(drbg, td->adin, td->adinlen, 0), 0)
|| !uninstantiate(drbg))
goto err;
/* Test explicit reseed with too much entropy */
if (!instantiate(drbg, td, &t))
goto err;
t.entropylen = drbg->max_entropylen + 1;
if (!TEST_int_le(RAND_DRBG_reseed(drbg, td->adin, td->adinlen, 0), 0)
|| !uninstantiate(drbg))
goto err;
/* Test explicit reseed with too little entropy */
if (!instantiate(drbg, td, &t))
goto err;
t.entropylen = drbg->min_entropylen - 1;
if (!TEST_int_le(RAND_DRBG_reseed(drbg, td->adin, td->adinlen, 0), 0)
|| !uninstantiate(drbg))
goto err;
/* Standard says we have to check uninstantiate really zeroes */
if (!TEST_mem_eq(zero, sizeof(drbg->data), &drbg->data, sizeof(drbg->data)))
goto err;
ret = 1;
err:
uninstantiate(drbg);
RAND_DRBG_free(drbg);
return ret;
}
static int test_kats(int i)
{
DRBG_SELFTEST_DATA *td = &drbg_test[i];
int rv = 0;
if (!single_kat(td))
goto err;
rv = 1;
err:
return rv;
}
static int test_error_checks(int i)
{
DRBG_SELFTEST_DATA *td = &drbg_test[i];
int rv = 0;
if (error_check(td))
goto err;
rv = 1;
err:
return rv;
}
/*
* Hook context data, attached as EXDATA to the RAND_DRBG
*/
typedef struct hook_ctx_st {
RAND_DRBG *drbg;
/*
* Currently, all DRBGs use the same get_entropy() callback.
* The tests however, don't assume this and store
* the original callback for every DRBG separately.
*/
RAND_DRBG_get_entropy_fn get_entropy;
/* forces a failure of the get_entropy() call if nonzero */
int fail;
/* counts successful reseeds */
int reseed_count;
} HOOK_CTX;
static HOOK_CTX master_ctx, public_ctx, private_ctx;
static HOOK_CTX *get_hook_ctx(RAND_DRBG *drbg)
{
return (HOOK_CTX *)RAND_DRBG_get_callback_data(drbg);
}
/* Intercepts and counts calls to the get_entropy() callback */
static size_t get_entropy_hook(RAND_DRBG *drbg, unsigned char **pout,
int entropy, size_t min_len, size_t max_len,
int prediction_resistance)
{
size_t ret;
HOOK_CTX *ctx = get_hook_ctx(drbg);
if (ctx->fail != 0)
return 0;
ret = ctx->get_entropy(drbg, pout, entropy, min_len, max_len,
prediction_resistance);
if (ret != 0)
ctx->reseed_count++;
return ret;
}
/* Installs a hook for the get_entropy() callback of the given drbg */
static void hook_drbg(RAND_DRBG *drbg, HOOK_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->drbg = drbg;
ctx->get_entropy = drbg->get_entropy;
/*
* We can't use the public API here, since it prohibits modifying
* the callbacks or the callback data of chained DRBGs.
*/
drbg->get_entropy = get_entropy_hook;
drbg->callback_data = ctx;
}
/* Installs the hook for the get_entropy() callback of the given drbg */
static void unhook_drbg(RAND_DRBG *drbg)
{
HOOK_CTX *ctx = drbg->callback_data;
if (ctx != NULL)
drbg->get_entropy = ctx->get_entropy;
}
/* Resets the given hook context */
static void reset_hook_ctx(HOOK_CTX *ctx)
{
ctx->fail = 0;
ctx->reseed_count = 0;
}
/* Resets all drbg hook contexts */
static void reset_drbg_hook_ctx(void)
{
reset_hook_ctx(&master_ctx);
reset_hook_ctx(&public_ctx);
reset_hook_ctx(&private_ctx);
}
/*
* Generates random output using RAND_bytes() and RAND_priv_bytes()
* and checks whether the three shared DRBGs were reseeded as
* expected.
*
* |expect_success|: expected outcome (as reported by RAND_status())
* |master|, |public|, |private|: pointers to the three shared DRBGs
* |expect_xxx_reseed| =
* 1: it is expected that the specified DRBG is reseeded
* 0: it is expected that the specified DRBG is not reseeded
* -1: don't check whether the specified DRBG was reseeded or not
* |reseed_time|: if nonzero, used instead of time(NULL) to set the
* |before_reseed| time.
*/
static int test_drbg_reseed(int expect_success,
RAND_DRBG *master,
RAND_DRBG *public,
RAND_DRBG *private,
int expect_master_reseed,
int expect_public_reseed,
int expect_private_reseed,
time_t reseed_time
)
{
unsigned char buf[32];
time_t before_reseed, after_reseed;
int expected_state = (expect_success ? DRBG_READY : DRBG_ERROR);
/*
* step 1: check preconditions
*/
/* Test whether seed propagation is enabled */
if (!TEST_int_ne(master->reseed_prop_counter, 0)
|| !TEST_int_ne(public->reseed_prop_counter, 0)
|| !TEST_int_ne(private->reseed_prop_counter, 0))
return 0;
/* Check whether the master DRBG's reseed counter is the largest one */
if (!TEST_int_le(public->reseed_prop_counter, master->reseed_prop_counter)
|| !TEST_int_le(private->reseed_prop_counter, master->reseed_prop_counter))
return 0;
/*
* step 2: generate random output
*/
if (reseed_time == 0)
reseed_time = time(NULL);
/* Generate random output from the public and private DRBG */
before_reseed = expect_master_reseed == 1 ? reseed_time : 0;
if (!TEST_int_eq(RAND_bytes(buf, sizeof(buf)), expect_success)
|| !TEST_int_eq(RAND_priv_bytes(buf, sizeof(buf)), expect_success))
return 0;
after_reseed = time(NULL);
/*
* step 3: check postconditions
*/
/* Test whether reseeding succeeded as expected */
if (!TEST_int_eq(master->state, expected_state)
|| !TEST_int_eq(public->state, expected_state)
|| !TEST_int_eq(private->state, expected_state))
return 0;
if (expect_master_reseed >= 0) {
/* Test whether master DRBG was reseeded as expected */
if (!TEST_int_eq(master_ctx.reseed_count, expect_master_reseed))
return 0;
}
if (expect_public_reseed >= 0) {
/* Test whether public DRBG was reseeded as expected */
if (!TEST_int_eq(public_ctx.reseed_count, expect_public_reseed))
return 0;
}
if (expect_private_reseed >= 0) {
/* Test whether public DRBG was reseeded as expected */
if (!TEST_int_eq(private_ctx.reseed_count, expect_private_reseed))
return 0;
}
if (expect_success == 1) {
/* Test whether all three reseed counters are synchronized */
if (!TEST_int_eq(public->reseed_prop_counter, master->reseed_prop_counter)
|| !TEST_int_eq(private->reseed_prop_counter, master->reseed_prop_counter))
return 0;
/* Test whether reseed time of master DRBG is set correctly */
if (!TEST_time_t_le(before_reseed, master->reseed_time)
|| !TEST_time_t_le(master->reseed_time, after_reseed))
return 0;
/* Test whether reseed times of child DRBGs are synchronized with master */
if (!TEST_time_t_ge(public->reseed_time, master->reseed_time)
|| !TEST_time_t_ge(private->reseed_time, master->reseed_time))
return 0;
} else {
ERR_clear_error();
}
return 1;
}
#if defined(OPENSSL_SYS_UNIX)
/*
* Test whether master, public and private DRBG are reseeded after
* forking the process.
*/
static int test_drbg_reseed_after_fork(RAND_DRBG *master,
RAND_DRBG *public,
RAND_DRBG *private)
{
pid_t pid;
int status=0;
pid = fork();
if (!TEST_int_ge(pid, 0))
return 0;
if (pid > 0) {
/* I'm the parent; wait for the child and check its exit code */
return TEST_int_eq(waitpid(pid, &status, 0), pid) && TEST_int_eq(status, 0);
}
/* I'm the child; check whether all three DRBGs reseed. */
if (!TEST_true(test_drbg_reseed(1, master, public, private, 1, 1, 1, 0)))
status = 1;
/* Remove hooks */
unhook_drbg(master);
unhook_drbg(public);
unhook_drbg(private);
exit(status);
}
#endif
/*
* Test whether the default rand_method (RAND_OpenSSL()) is
* setup correctly, in particular whether reseeding works
* as designed.
*/
static int test_rand_drbg_reseed(void)
{
RAND_DRBG *master, *public, *private;
unsigned char rand_add_buf[256];
int rv=0;
time_t before_reseed;
/* Check whether RAND_OpenSSL() is the default method */
if (!TEST_ptr_eq(RAND_get_rand_method(), RAND_OpenSSL()))
return 0;
/* All three DRBGs should be non-null */
if (!TEST_ptr(master = RAND_DRBG_get0_master())
|| !TEST_ptr(public = RAND_DRBG_get0_public())
|| !TEST_ptr(private = RAND_DRBG_get0_private()))
return 0;
/* There should be three distinct DRBGs, two of them chained to master */
if (!TEST_ptr_ne(public, private)
|| !TEST_ptr_ne(public, master)
|| !TEST_ptr_ne(private, master)
|| !TEST_ptr_eq(public->parent, master)
|| !TEST_ptr_eq(private->parent, master))
return 0;
/* Disable CRNG testing for the master DRBG */
if (!TEST_true(disable_crngt(master)))
return 0;
/* uninstantiate the three global DRBGs */
RAND_DRBG_uninstantiate(private);
RAND_DRBG_uninstantiate(public);
RAND_DRBG_uninstantiate(master);
/* Install hooks for the following tests */
hook_drbg(master, &master_ctx);
hook_drbg(public, &public_ctx);
hook_drbg(private, &private_ctx);
/*
* Test initial seeding of shared DRBGs
*/
if (!TEST_true(test_drbg_reseed(1, master, public, private, 1, 1, 1, 0)))
goto error;
reset_drbg_hook_ctx();
/*
* Test initial state of shared DRBGs
*/
if (!TEST_true(test_drbg_reseed(1, master, public, private, 0, 0, 0, 0)))
goto error;
reset_drbg_hook_ctx();
/*
* Test whether the public and private DRBG are both reseeded when their
* reseed counters differ from the master's reseed counter.
*/
master->reseed_prop_counter++;
if (!TEST_true(test_drbg_reseed(1, master, public, private, 0, 1, 1, 0)))
goto error;
reset_drbg_hook_ctx();
/*
* Test whether the public DRBG is reseeded when its reseed counter differs
* from the master's reseed counter.
*/
master->reseed_prop_counter++;
private->reseed_prop_counter++;
if (!TEST_true(test_drbg_reseed(1, master, public, private, 0, 1, 0, 0)))
goto error;
reset_drbg_hook_ctx();
/*
* Test whether the private DRBG is reseeded when its reseed counter differs
* from the master's reseed counter.
*/
master->reseed_prop_counter++;
public->reseed_prop_counter++;
if (!TEST_true(test_drbg_reseed(1, master, public, private, 0, 0, 1, 0)))
goto error;
reset_drbg_hook_ctx();
#if defined(OPENSSL_SYS_UNIX)
if (!TEST_true(test_drbg_reseed_after_fork(master, public, private)))
goto error;
#endif
/* fill 'randomness' buffer with some arbitrary data */
memset(rand_add_buf, 'r', sizeof(rand_add_buf));
#ifndef FIPS_MODE
/*
* Test whether all three DRBGs are reseeded by RAND_add().
* The before_reseed time has to be measured here and passed into the
* test_drbg_reseed() test, because the master DRBG gets already reseeded
* in RAND_add(), whence the check for the condition
* before_reseed <= master->reseed_time will fail if the time value happens
* to increase between the RAND_add() and the test_drbg_reseed() call.
*/
before_reseed = time(NULL);
RAND_add(rand_add_buf, sizeof(rand_add_buf), sizeof(rand_add_buf));
if (!TEST_true(test_drbg_reseed(1, master, public, private, 1, 1, 1,
before_reseed)))
goto error;
reset_drbg_hook_ctx();
/*
* Test whether none of the DRBGs is reseed if the master fails to reseed
*/
master_ctx.fail = 1;
master->reseed_prop_counter++;
RAND_add(rand_add_buf, sizeof(rand_add_buf), sizeof(rand_add_buf));
if (!TEST_true(test_drbg_reseed(0, master, public, private, 0, 0, 0, 0)))
goto error;
reset_drbg_hook_ctx();
#else /* FIPS_MODE */
/*
* In FIPS mode, random data provided by the application via RAND_add()
* is not considered a trusted entropy source. It is only treated as
* additional_data and no reseeding is forced. This test assures that
* no reseeding occurs.
*/
before_reseed = time(NULL);
RAND_add(rand_add_buf, sizeof(rand_add_buf), sizeof(rand_add_buf));
if (!TEST_true(test_drbg_reseed(1, master, public, private, 0, 0, 0,
before_reseed)))
goto error;
reset_drbg_hook_ctx();
#endif
rv = 1;
error:
/* Remove hooks */
unhook_drbg(master);
unhook_drbg(public);
unhook_drbg(private);
return rv;
}
#if defined(OPENSSL_THREADS)
static int multi_thread_rand_bytes_succeeded = 1;
static int multi_thread_rand_priv_bytes_succeeded = 1;
static void run_multi_thread_test(void)
{
unsigned char buf[256];
time_t start = time(NULL);
RAND_DRBG *public = NULL, *private = NULL;
if (!TEST_ptr(public = RAND_DRBG_get0_public())
|| !TEST_ptr(private = RAND_DRBG_get0_private())) {
multi_thread_rand_bytes_succeeded = 0;
return;
}
RAND_DRBG_set_reseed_time_interval(private, 1);
RAND_DRBG_set_reseed_time_interval(public, 1);
do {
if (RAND_bytes(buf, sizeof(buf)) <= 0)
multi_thread_rand_bytes_succeeded = 0;
if (RAND_priv_bytes(buf, sizeof(buf)) <= 0)
multi_thread_rand_priv_bytes_succeeded = 0;
}
while(time(NULL) - start < 5);
}
# if defined(OPENSSL_SYS_WINDOWS)
typedef HANDLE thread_t;
static DWORD WINAPI thread_run(LPVOID arg)
{
run_multi_thread_test();
/*
* Because we're linking with a static library, we must stop each
* thread explicitly, or so says OPENSSL_thread_stop(3)
*/
OPENSSL_thread_stop();
return 0;
}
static int run_thread(thread_t *t)
{
*t = CreateThread(NULL, 0, thread_run, NULL, 0, NULL);
return *t != NULL;
}
static int wait_for_thread(thread_t thread)
{
return WaitForSingleObject(thread, INFINITE) == 0;
}
# else
typedef pthread_t thread_t;
static void *thread_run(void *arg)
{
run_multi_thread_test();
/*
* Because we're linking with a static library, we must stop each
* thread explicitly, or so says OPENSSL_thread_stop(3)
*/
OPENSSL_thread_stop();
return NULL;
}
static int run_thread(thread_t *t)
{
return pthread_create(t, NULL, thread_run, NULL) == 0;
}
static int wait_for_thread(thread_t thread)
{
return pthread_join(thread, NULL) == 0;
}
# endif
/*
* The main thread will also run the test, so we'll have THREADS+1 parallel
* tests running
*/
# define THREADS 3
static int test_multi_thread(void)
{
thread_t t[THREADS];
int i;
for (i = 0; i < THREADS; i++)
run_thread(&t[i]);
run_multi_thread_test();
for (i = 0; i < THREADS; i++)
wait_for_thread(t[i]);
if (!TEST_true(multi_thread_rand_bytes_succeeded))
return 0;
if (!TEST_true(multi_thread_rand_priv_bytes_succeeded))
return 0;
return 1;
}
#endif
/*
* Test that instantiation with RAND_seed() works as expected
*
* If no os entropy source is available then RAND_seed(buffer, bufsize)
* is expected to succeed if and only if the buffer length is at least
* rand_drbg_seedlen(master) bytes.
*
* If an os entropy source is available then RAND_seed(buffer, bufsize)
* is expected to succeed always.
*/
static int test_rand_seed(void)
{
RAND_DRBG *master = NULL;
unsigned char rand_buf[256];
size_t rand_buflen;
size_t required_seed_buflen = 0;
if (!TEST_ptr(master = RAND_DRBG_get0_master())
|| !TEST_true(disable_crngt(master)))
return 0;
#ifdef OPENSSL_RAND_SEED_NONE
required_seed_buflen = rand_drbg_seedlen(master);
#endif
memset(rand_buf, 0xCD, sizeof(rand_buf));
for ( rand_buflen = 256 ; rand_buflen > 0 ; --rand_buflen ) {
RAND_DRBG_uninstantiate(master);
RAND_seed(rand_buf, rand_buflen);
if (!TEST_int_eq(RAND_status(),
(rand_buflen >= required_seed_buflen)))
return 0;
}
return 1;
}
/*
* Test that adding additional data with RAND_add() works as expected
* when the master DRBG is instantiated (and below its reseed limit).
*
* This should succeed regardless of whether an os entropy source is
* available or not.
*/
static int test_rand_add(void)
{
unsigned char rand_buf[256];
size_t rand_buflen;
memset(rand_buf, 0xCD, sizeof(rand_buf));
/* make sure it's instantiated */
RAND_seed(rand_buf, sizeof(rand_buf));
if (!TEST_true(RAND_status()))
return 0;
for ( rand_buflen = 256 ; rand_buflen > 0 ; --rand_buflen ) {
RAND_add(rand_buf, rand_buflen, 0.0);
if (!TEST_true(RAND_status()))
return 0;
}
return 1;
}
static int test_rand_drbg_prediction_resistance(void)
{
RAND_DRBG *m = NULL, *i = NULL, *s = NULL;
unsigned char buf1[51], buf2[sizeof(buf1)];
int ret = 0, mreseed, ireseed, sreseed;
/* Initialise a three long DRBG chain */
if (!TEST_ptr(m = RAND_DRBG_new(0, 0, NULL))
|| !TEST_true(disable_crngt(m))
|| !TEST_true(RAND_DRBG_instantiate(m, NULL, 0))
|| !TEST_ptr(i = RAND_DRBG_new(0, 0, m))
|| !TEST_true(RAND_DRBG_instantiate(i, NULL, 0))
|| !TEST_ptr(s = RAND_DRBG_new(0, 0, i))
|| !TEST_true(RAND_DRBG_instantiate(s, NULL, 0)))
goto err;
/* During a normal reseed, only the slave DRBG should be reseed */
mreseed = ++m->reseed_prop_counter;
ireseed = ++i->reseed_prop_counter;
sreseed = s->reseed_prop_counter;
if (!TEST_true(RAND_DRBG_reseed(s, NULL, 0, 0))
|| !TEST_int_eq(m->reseed_prop_counter, mreseed)
|| !TEST_int_eq(i->reseed_prop_counter, ireseed)
|| !TEST_int_gt(s->reseed_prop_counter, sreseed))
goto err;
/*
* When prediction resistance is requested, the request should be
* propagated to the master, so that the entire DRBG chain reseeds.
*/
sreseed = s->reseed_prop_counter;
if (!TEST_true(RAND_DRBG_reseed(s, NULL, 0, 1))
|| !TEST_int_gt(m->reseed_prop_counter, mreseed)
|| !TEST_int_gt(i->reseed_prop_counter, ireseed)
|| !TEST_int_gt(s->reseed_prop_counter, sreseed))
goto err;
/* During a normal generate, only the slave DRBG should be reseed */
mreseed = ++m->reseed_prop_counter;
ireseed = ++i->reseed_prop_counter;
sreseed = s->reseed_prop_counter;
if (!TEST_true(RAND_DRBG_generate(s, buf1, sizeof(buf1), 0, NULL, 0))
|| !TEST_int_eq(m->reseed_prop_counter, mreseed)
|| !TEST_int_eq(i->reseed_prop_counter, ireseed)
|| !TEST_int_gt(s->reseed_prop_counter, sreseed))
goto err;
/*
* When a prediction resistant generate is requested, the request
* should be propagated to the master, reseeding the entire DRBG chain.
*/
sreseed = s->reseed_prop_counter;
if (!TEST_true(RAND_DRBG_generate(s, buf2, sizeof(buf2), 1, NULL, 0))
|| !TEST_int_gt(m->reseed_prop_counter, mreseed)
|| !TEST_int_gt(i->reseed_prop_counter, ireseed)
|| !TEST_int_gt(s->reseed_prop_counter, sreseed)
|| !TEST_mem_ne(buf1, sizeof(buf1), buf2, sizeof(buf2)))
goto err;
/* Verify that a normal reseed still only reseeds the slave DRBG */
mreseed = ++m->reseed_prop_counter;
ireseed = ++i->reseed_prop_counter;
sreseed = s->reseed_prop_counter;
if (!TEST_true(RAND_DRBG_reseed(s, NULL, 0, 0))
|| !TEST_int_eq(m->reseed_prop_counter, mreseed)
|| !TEST_int_eq(i->reseed_prop_counter, ireseed)
|| !TEST_int_gt(s->reseed_prop_counter, sreseed))
goto err;
ret = 1;
err:
RAND_DRBG_free(s);
RAND_DRBG_free(i);
RAND_DRBG_free(m);
return ret;
}
static int test_multi_set(void)
{
int rv = 0;
RAND_DRBG *drbg = NULL;
/* init drbg with default CTR initializer */
if (!TEST_ptr(drbg = RAND_DRBG_new(0, 0, NULL))
|| !TEST_true(disable_crngt(drbg)))
goto err;
/* change it to use hmac */
if (!TEST_true(RAND_DRBG_set(drbg, NID_sha1, RAND_DRBG_FLAG_HMAC)))
goto err;
/* use same type */
if (!TEST_true(RAND_DRBG_set(drbg, NID_sha1, RAND_DRBG_FLAG_HMAC)))
goto err;
/* change it to use hash */
if (!TEST_true(RAND_DRBG_set(drbg, NID_sha256, 0)))
goto err;
/* use same type */
if (!TEST_true(RAND_DRBG_set(drbg, NID_sha256, 0)))
goto err;
/* change it to use ctr */
if (!TEST_true(RAND_DRBG_set(drbg, NID_aes_192_ctr, 0)))
goto err;
/* use same type */
if (!TEST_true(RAND_DRBG_set(drbg, NID_aes_192_ctr, 0)))
goto err;
if (!TEST_int_gt(RAND_DRBG_instantiate(drbg, NULL, 0), 0))
goto err;
rv = 1;
err:
uninstantiate(drbg);
RAND_DRBG_free(drbg);
return rv;
}
static int test_set_defaults(void)
{
RAND_DRBG *master = NULL, *public = NULL, *private = NULL;
/* Check the default type and flags for master, public and private */
return TEST_ptr(master = RAND_DRBG_get0_master())
&& TEST_ptr(public = RAND_DRBG_get0_public())
&& TEST_ptr(private = RAND_DRBG_get0_private())
&& TEST_int_eq(master->type, RAND_DRBG_TYPE)
&& TEST_int_eq(master->flags,
RAND_DRBG_FLAGS | RAND_DRBG_FLAG_MASTER)
&& TEST_int_eq(public->type, RAND_DRBG_TYPE)
&& TEST_int_eq(public->flags,
RAND_DRBG_FLAGS | RAND_DRBG_FLAG_PUBLIC)
&& TEST_int_eq(private->type, RAND_DRBG_TYPE)
&& TEST_int_eq(private->flags,
RAND_DRBG_FLAGS | RAND_DRBG_FLAG_PRIVATE)
/* change master DRBG and check again */
&& TEST_true(RAND_DRBG_set_defaults(NID_sha256,
RAND_DRBG_FLAG_MASTER))
&& TEST_true(RAND_DRBG_uninstantiate(master))
&& TEST_int_eq(master->type, NID_sha256)
&& TEST_int_eq(master->flags, RAND_DRBG_FLAG_MASTER)
&& TEST_int_eq(public->type, RAND_DRBG_TYPE)
&& TEST_int_eq(public->flags,
RAND_DRBG_FLAGS | RAND_DRBG_FLAG_PUBLIC)
&& TEST_int_eq(private->type, RAND_DRBG_TYPE)
&& TEST_int_eq(private->flags,
RAND_DRBG_FLAGS | RAND_DRBG_FLAG_PRIVATE)
/* change private DRBG and check again */
&& TEST_true(RAND_DRBG_set_defaults(NID_sha256,
RAND_DRBG_FLAG_PRIVATE|RAND_DRBG_FLAG_HMAC))
&& TEST_true(RAND_DRBG_uninstantiate(private))
&& TEST_int_eq(master->type, NID_sha256)
&& TEST_int_eq(master->flags, RAND_DRBG_FLAG_MASTER)
&& TEST_int_eq(public->type, RAND_DRBG_TYPE)
&& TEST_int_eq(public->flags,
RAND_DRBG_FLAGS | RAND_DRBG_FLAG_PUBLIC)
&& TEST_int_eq(private->type, NID_sha256)
&& TEST_int_eq(private->flags,
RAND_DRBG_FLAG_PRIVATE | RAND_DRBG_FLAG_HMAC)
/* change public DRBG and check again */
&& TEST_true(RAND_DRBG_set_defaults(NID_sha1,
RAND_DRBG_FLAG_PUBLIC
| RAND_DRBG_FLAG_HMAC))
&& TEST_true(RAND_DRBG_uninstantiate(public))
&& TEST_int_eq(master->type, NID_sha256)
&& TEST_int_eq(master->flags, RAND_DRBG_FLAG_MASTER)
&& TEST_int_eq(public->type, NID_sha1)
&& TEST_int_eq(public->flags,
RAND_DRBG_FLAG_PUBLIC | RAND_DRBG_FLAG_HMAC)
&& TEST_int_eq(private->type, NID_sha256)
&& TEST_int_eq(private->flags,
RAND_DRBG_FLAG_PRIVATE | RAND_DRBG_FLAG_HMAC)
/* Change DRBG defaults and change public and check again */
&& TEST_true(RAND_DRBG_set_defaults(NID_sha256, 0))
&& TEST_true(RAND_DRBG_uninstantiate(public))
&& TEST_int_eq(public->type, NID_sha256)
&& TEST_int_eq(public->flags, RAND_DRBG_FLAG_PUBLIC)
/* FIPS mode doesn't support CTR DRBG without a derivation function */
#ifndef FIPS_MODE
/* Change DRBG defaults and change master and check again */
&& TEST_true(RAND_DRBG_set_defaults(NID_aes_256_ctr,
RAND_DRBG_FLAG_CTR_NO_DF))
&& TEST_true(RAND_DRBG_uninstantiate(master))
&& TEST_int_eq(master->type, NID_aes_256_ctr)
&& TEST_int_eq(master->flags,
RAND_DRBG_FLAG_MASTER|RAND_DRBG_FLAG_CTR_NO_DF)
#endif
/* Reset back to the standard defaults */
&& TEST_true(RAND_DRBG_set_defaults(RAND_DRBG_TYPE,
RAND_DRBG_FLAGS
| RAND_DRBG_FLAG_MASTER
| RAND_DRBG_FLAG_PUBLIC
| RAND_DRBG_FLAG_PRIVATE))
&& TEST_true(RAND_DRBG_uninstantiate(master))
&& TEST_true(RAND_DRBG_uninstantiate(public))
&& TEST_true(RAND_DRBG_uninstantiate(private));
}
/*
* A list of the FIPS DRGB types.
* Because of the way HMAC DRGBs are implemented, both the NID and flags
* are required.
*/
static const struct s_drgb_types {
int nid;
int flags;
} drgb_types[] = {
{ NID_aes_128_ctr, 0 },
{ NID_aes_192_ctr, 0 },
{ NID_aes_256_ctr, 0 },
{ NID_sha1, 0 },
{ NID_sha224, 0 },
{ NID_sha256, 0 },
{ NID_sha384, 0 },
{ NID_sha512, 0 },
{ NID_sha512_224, 0 },
{ NID_sha512_256, 0 },
{ NID_sha3_224, 0 },
{ NID_sha3_256, 0 },
{ NID_sha3_384, 0 },
{ NID_sha3_512, 0 },
{ NID_sha1, RAND_DRBG_FLAG_HMAC },
{ NID_sha224, RAND_DRBG_FLAG_HMAC },
{ NID_sha256, RAND_DRBG_FLAG_HMAC },
{ NID_sha384, RAND_DRBG_FLAG_HMAC },
{ NID_sha512, RAND_DRBG_FLAG_HMAC },
{ NID_sha512_224, RAND_DRBG_FLAG_HMAC },
{ NID_sha512_256, RAND_DRBG_FLAG_HMAC },
{ NID_sha3_224, RAND_DRBG_FLAG_HMAC },
{ NID_sha3_256, RAND_DRBG_FLAG_HMAC },
{ NID_sha3_384, RAND_DRBG_FLAG_HMAC },
{ NID_sha3_512, RAND_DRBG_FLAG_HMAC },
};
/* Six cases for each covers seed sizes up to 32 bytes */
static const size_t crngt_num_cases = 6;
static size_t crngt_case, crngt_idx;
static int crngt_entropy_cb(OPENSSL_CTX *ctx, RAND_POOL *pool,
unsigned char *buf, unsigned char *md,
unsigned int *md_size)
{
size_t i, z;
if (!TEST_int_lt(crngt_idx, crngt_num_cases))
return 0;
/* Generate a block of unique data unless this is the duplication point */
z = crngt_idx++;
if (z > 0 && crngt_case == z)
z--;
for (i = 0; i < CRNGT_BUFSIZ; i++)
buf[i] = (unsigned char)(i + 'A' + z);
return EVP_Digest(buf, CRNGT_BUFSIZ, md, md_size, EVP_sha256(), NULL);
}
static int test_crngt(int n)
{
const struct s_drgb_types *dt = drgb_types + n / crngt_num_cases;
RAND_DRBG *drbg = NULL;
unsigned char buff[100];
size_t ent;
int res = 0;
int expect;
OPENSSL_CTX *ctx = OPENSSL_CTX_new();
if (!TEST_ptr(ctx))
return 0;
if (!TEST_ptr(drbg = RAND_DRBG_new_ex(ctx, dt->nid, dt->flags, NULL)))
goto err;
ent = (drbg->min_entropylen + CRNGT_BUFSIZ - 1) / CRNGT_BUFSIZ;
crngt_case = n % crngt_num_cases;
crngt_idx = 0;
crngt_get_entropy = &crngt_entropy_cb;
#ifndef FIPS_MODE
if (!TEST_true(RAND_DRBG_set_callbacks(drbg, &rand_crngt_get_entropy,
&rand_crngt_cleanup_entropy,
&rand_drbg_get_nonce,
&rand_drbg_cleanup_nonce)))
goto err;
#endif
expect = crngt_case == 0 || crngt_case > ent;
if (!TEST_int_eq(RAND_DRBG_instantiate(drbg, NULL, 0), expect))
goto err;
if (!expect)
goto fin;
if (!TEST_true(RAND_DRBG_generate(drbg, buff, sizeof(buff), 0, NULL, 0)))
goto err;
expect = crngt_case == 0 || crngt_case > 2 * ent;
if (!TEST_int_eq(RAND_DRBG_reseed(drbg, NULL, 0, 0), expect))
goto err;
if (!expect)
goto fin;
if (!TEST_true(RAND_DRBG_generate(drbg, buff, sizeof(buff), 0, NULL, 0)))
goto err;
fin:
res = 1;
err:
if (!res)
TEST_note("DRBG %zd case %zd block %zd", n / crngt_num_cases,
crngt_case, crngt_idx);
uninstantiate(drbg);
RAND_DRBG_free(drbg);
crngt_get_entropy = &rand_crngt_get_entropy_cb;
OPENSSL_CTX_free(ctx);
return res;
}
int setup_tests(void)
{
ADD_ALL_TESTS(test_kats, OSSL_NELEM(drbg_test));
ADD_ALL_TESTS(test_error_checks, OSSL_NELEM(drbg_test));
ADD_TEST(test_rand_drbg_reseed);
ADD_TEST(test_rand_seed);
ADD_TEST(test_rand_add);
ADD_TEST(test_rand_drbg_prediction_resistance);
ADD_TEST(test_multi_set);
ADD_TEST(test_set_defaults);
#if defined(OPENSSL_THREADS)
ADD_TEST(test_multi_thread);
#endif
ADD_ALL_TESTS(test_crngt, crngt_num_cases * OSSL_NELEM(drgb_types));
return 1;
}
Reference in New Issue View Git Blame Copy Permalink