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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
*/
/*
* These tests are setup to load null into the default library context.
* Any tests are expected to use the created 'libctx' to find algorithms.
* The framework runs the tests twice using the 'default' provider or
* 'fips' provider as inputs.
*/
/*
* DSA/DH low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include <openssl/evp.h>
#include <openssl/provider.h>
#include <openssl/dsa.h>
#include "testutil.h"
#include "internal/nelem.h"
#include "crypto/bn_dh.h" /* _bignum_ffdhe2048_p */
static OPENSSL_CTX *libctx = NULL;
static OSSL_PROVIDER *nullprov = NULL;
static OSSL_PROVIDER *libprov = NULL;
typedef enum OPTION_choice {
OPT_ERR = -1,
OPT_EOF = 0,
OPT_CONFIG_FILE,
OPT_PROVIDER_NAME,
OPT_TEST_ENUM
} OPTION_CHOICE;
const OPTIONS *test_get_options(void)
{
static const OPTIONS test_options[] = {
OPT_TEST_OPTIONS_DEFAULT_USAGE,
{ "config", OPT_CONFIG_FILE, '<',
"The configuration file to use for the libctx" },
{ "provider", OPT_PROVIDER_NAME, 's',
"The provider to load (The default value is 'default'" },
{ NULL }
};
return test_options;
}
#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_DH)
static const char *getname(int id)
{
const char *name[] = {"p", "q", "g" };
if (id >= 0 && id < 3)
return name[id];
return "?";
}
#endif
#ifndef OPENSSL_NO_DSA
static int test_dsa_param_keygen(int tstid)
{
int ret = 0;
int expected;
EVP_PKEY_CTX *gen_ctx = NULL;
EVP_PKEY *pkey_parm = NULL;
EVP_PKEY *pkey = NULL;
DSA *dsa = NULL;
int pind, qind, gind;
BIGNUM *p = NULL, *q = NULL, *g = NULL;
/*
* Just grab some fixed dh p, q, g values for testing,
* these 'safe primes' should not be used normally for dsa *.
*/
static const BIGNUM *bn[] = {
&_bignum_dh2048_256_p, &_bignum_dh2048_256_q, &_bignum_dh2048_256_g
};
/*
* These tests are using bad values for p, q, g by reusing the values.
* A value of 0 uses p, 1 uses q and 2 uses g.
* There are 27 different combinations, with only the 1 valid combination.
*/
pind = tstid / 9;
qind = (tstid / 3) % 3;
gind = tstid % 3;
expected = (pind == 0 && qind == 1 && gind == 2);
TEST_note("Testing with (p, q, g) = (%s, %s, %s)\n", getname(pind),
getname(qind), getname(gind));
if (!TEST_ptr(pkey_parm = EVP_PKEY_new())
|| !TEST_ptr(dsa = DSA_new())
|| !TEST_ptr(p = BN_dup(bn[pind]))
|| !TEST_ptr(q = BN_dup(bn[qind]))
|| !TEST_ptr(g = BN_dup(bn[gind]))
|| !TEST_true(DSA_set0_pqg(dsa, p, q, g)))
goto err;
p = q = g = NULL;
if (!TEST_true(EVP_PKEY_assign_DSA(pkey_parm, dsa)))
goto err;
dsa = NULL;
if (!TEST_ptr(gen_ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey_parm, NULL))
|| !TEST_int_gt(EVP_PKEY_keygen_init(gen_ctx), 0)
|| !TEST_int_eq(EVP_PKEY_keygen(gen_ctx, &pkey), expected))
goto err;
ret = 1;
err:
EVP_PKEY_free(pkey);
EVP_PKEY_CTX_free(gen_ctx);
EVP_PKEY_free(pkey_parm);
DSA_free(dsa);
BN_free(g);
BN_free(q);
BN_free(p);
return ret;
}
#endif /* OPENSSL_NO_DSA */
#ifndef OPENSSL_NO_DH
static int do_dh_param_keygen(int tstid, const BIGNUM **bn)
{
int ret = 0;
int expected;
EVP_PKEY_CTX *gen_ctx = NULL;
EVP_PKEY *pkey_parm = NULL;
EVP_PKEY *pkey = NULL;
DH *dh = NULL;
int pind, qind, gind;
BIGNUM *p = NULL, *q = NULL, *g = NULL;
/*
* These tests are using bad values for p, q, g by reusing the values.
* A value of 0 uses p, 1 uses q and 2 uses g.
* There are 27 different combinations, with only the 1 valid combination.
*/
pind = tstid / 9;
qind = (tstid / 3) % 3;
gind = tstid % 3;
expected = (pind == 0 && qind == 1 && gind == 2);
TEST_note("Testing with (p, q, g) = (%s, %s, %s)", getname(pind),
getname(qind), getname(gind));
if (!TEST_ptr(pkey_parm = EVP_PKEY_new())
|| !TEST_ptr(dh = DH_new())
|| !TEST_ptr(p = BN_dup(bn[pind]))
|| !TEST_ptr(q = BN_dup(bn[qind]))
|| !TEST_ptr(g = BN_dup(bn[gind]))
|| !TEST_true(DH_set0_pqg(dh, p, q, g)))
goto err;
p = q = g = NULL;
if (!TEST_true(EVP_PKEY_assign_DH(pkey_parm, dh)))
goto err;
dh = NULL;
if (!TEST_ptr(gen_ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pkey_parm, NULL))
|| !TEST_int_gt(EVP_PKEY_keygen_init(gen_ctx), 0)
|| !TEST_int_eq(EVP_PKEY_keygen(gen_ctx, &pkey), expected))
goto err;
ret = 1;
err:
EVP_PKEY_free(pkey);
EVP_PKEY_CTX_free(gen_ctx);
EVP_PKEY_free(pkey_parm);
DH_free(dh);
BN_free(g);
BN_free(q);
BN_free(p);
return ret;
}
/*
* Note that we get the fips186-4 path being run for most of these cases since
* the internal code will detect that the p, q, g does not match a safe prime
* group (Except for when tstid = 5, which sets the correct p, q, g)
*/
static int test_dh_safeprime_param_keygen(int tstid)
{
static const BIGNUM *bn[] = {
&_bignum_ffdhe2048_p, &_bignum_ffdhe2048_q, &_bignum_const_2
};
return do_dh_param_keygen(tstid, bn);
}
#endif /* OPENSSL_NO_DH */
int setup_tests(void)
{
const char *prov_name = "default";
char *config_file = NULL;
OPTION_CHOICE o;
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_PROVIDER_NAME:
prov_name = opt_arg();
break;
case OPT_CONFIG_FILE:
config_file = opt_arg();
break;
case OPT_TEST_CASES:
break;
default:
case OPT_ERR:
return 0;
}
}
nullprov = OSSL_PROVIDER_load(NULL, "null");
if (!TEST_ptr(nullprov))
return 0;
libctx = OPENSSL_CTX_new();
if (!TEST_ptr(libctx))
return 0;
if (config_file != NULL) {
if (!TEST_true(OPENSSL_CTX_load_config(libctx, config_file)))
return 0;
}
libprov = OSSL_PROVIDER_load(libctx, prov_name);
if (!TEST_ptr(libprov))
return 0;
#ifndef OPENSSL_NO_DSA
ADD_ALL_TESTS(test_dsa_param_keygen, 3 * 3 * 3);
#endif
#ifndef OPENSSL_NO_DH
ADD_ALL_TESTS(test_dh_safeprime_param_keygen, 3 * 3 * 3);
#endif
return 1;
}
void cleanup_tests(void)
{
OSSL_PROVIDER_unload(libprov);
OPENSSL_CTX_free(libctx);
OSSL_PROVIDER_unload(nullprov);
}
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