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openssl/test/evp_fetch_prov_test.c

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/*
* Copyright 2019-2021 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
*/
/*
* SHA256 low level APIs are deprecated for public use, but still ok for
* internal use. Note, that due to symbols not being exported, only the
* #defines can be accessed. In this case SHA256_CBLOCK.
*/
#include "internal/deprecated.h"
#include <string.h>
#include <openssl/sha.h>
#include <openssl/evp.h>
#include <openssl/provider.h>
#include "internal/sizes.h"
#include "testutil.h"
static char *config_file = NULL;
static char *alg = "digest";
static int use_default_ctx = 0;
static char *fetch_property = NULL;
static int expected_fetch_result = 1;
typedef enum OPTION_choice {
OPT_ERR = -1,
OPT_EOF = 0,
OPT_ALG_FETCH_TYPE,
OPT_FETCH_PROPERTY,
OPT_FETCH_FAILURE,
OPT_USE_DEFAULTCTX,
OPT_CONFIG_FILE,
OPT_TEST_ENUM
} OPTION_CHOICE;
const OPTIONS *test_get_options(void)
{
static const OPTIONS test_options[] = {
OPT_TEST_OPTIONS_WITH_EXTRA_USAGE("[provname...]\n"),
{ "config", OPT_CONFIG_FILE, '<', "The configuration file to use for the libctx" },
{ "type", OPT_ALG_FETCH_TYPE, 's', "The fetch type to test" },
{ "property", OPT_FETCH_PROPERTY, 's', "The fetch property e.g. provider=fips" },
{ "fetchfail", OPT_FETCH_FAILURE, '-', "fetch is expected to fail" },
{ "defaultctx", OPT_USE_DEFAULTCTX, '-',
"Use the default context if this is set" },
{ OPT_HELP_STR, 1, '-', "file\tProvider names to explicitly load\n" },
{ NULL }
};
return test_options;
}
static int calculate_digest(const EVP_MD *md, const char *msg, size_t len,
const unsigned char *exptd)
{
unsigned char out[SHA256_DIGEST_LENGTH];
EVP_MD_CTX *ctx;
int ret = 0;
if (!TEST_ptr(ctx = EVP_MD_CTX_new())
|| !TEST_true(EVP_DigestInit_ex(ctx, md, NULL))
|| !TEST_true(EVP_DigestUpdate(ctx, msg, len))
|| !TEST_true(EVP_DigestFinal_ex(ctx, out, NULL))
|| !TEST_mem_eq(out, SHA256_DIGEST_LENGTH, exptd,
SHA256_DIGEST_LENGTH)
|| !TEST_true(md == EVP_MD_CTX_get0_md(ctx)))
goto err;
ret = 1;
err:
EVP_MD_CTX_free(ctx);
return ret;
}
static int load_providers(OSSL_LIB_CTX **libctx, OSSL_PROVIDER *prov[])
{
OSSL_LIB_CTX *ctx = NULL;
int ret = 0;
size_t i;
ctx = OSSL_LIB_CTX_new();
if (!TEST_ptr(ctx))
goto err;
if (!TEST_true(OSSL_LIB_CTX_load_config(ctx, config_file)))
goto err;
if (test_get_argument_count() > 2)
goto err;
for (i = 0; i < test_get_argument_count(); ++i) {
char *provname = test_get_argument(i);
prov[i] = OSSL_PROVIDER_load(ctx, provname);
if (!TEST_ptr(prov[i]))
goto err;
}
ret = 1;
*libctx = ctx;
err:
if (ret == 0)
OSSL_LIB_CTX_free(ctx);
return ret;
}
static void unload_providers(OSSL_LIB_CTX **libctx, OSSL_PROVIDER *prov[])
{
if (prov[0] != NULL)
OSSL_PROVIDER_unload(prov[0]);
if (prov[1] != NULL)
OSSL_PROVIDER_unload(prov[1]);
/* Not normally needed, but we would like to test that
* OPENSSL_thread_stop_ex() behaves as expected.
*/
if (libctx != NULL && *libctx != NULL) {
OPENSSL_thread_stop_ex(*libctx);
OSSL_LIB_CTX_free(*libctx);
}
}
static X509_ALGOR *make_algor(int nid)
{
X509_ALGOR *algor;
if (!TEST_ptr(algor = X509_ALGOR_new())
|| !TEST_true(X509_ALGOR_set0(algor, OBJ_nid2obj(nid),
V_ASN1_UNDEF, NULL))) {
X509_ALGOR_free(algor);
return NULL;
}
return algor;
}
/*
* Test EVP_MD_fetch()
*/
static int test_md(const EVP_MD *md)
{
const char testmsg[] = "Hello world";
const unsigned char exptd[] = {
0x27, 0x51, 0x8b, 0xa9, 0x68, 0x30, 0x11, 0xf6, 0xb3, 0x96, 0x07, 0x2c,
0x05, 0xf6, 0x65, 0x6d, 0x04, 0xf5, 0xfb, 0xc3, 0x78, 0x7c, 0xf9, 0x24,
0x90, 0xec, 0x60, 0x6e, 0x50, 0x92, 0xe3, 0x26
};
return TEST_ptr(md)
&& TEST_true(EVP_MD_is_a(md, "SHA256"))
&& TEST_true(calculate_digest(md, testmsg, sizeof(testmsg), exptd))
&& TEST_int_eq(EVP_MD_get_size(md), SHA256_DIGEST_LENGTH)
&& TEST_int_eq(EVP_MD_get_block_size(md), SHA256_CBLOCK);
}
static int test_implicit_EVP_MD_fetch(void)
{
OSSL_LIB_CTX *ctx = NULL;
OSSL_PROVIDER *prov[2] = {NULL, NULL};
int ret = 0;
ret = (use_default_ctx == 0 || load_providers(&ctx, prov))
&& test_md(EVP_sha256());
unload_providers(&ctx, prov);
return ret;
}
static int test_explicit_EVP_MD_fetch(const char *id)
{
OSSL_LIB_CTX *ctx = NULL;
EVP_MD *md = NULL;
OSSL_PROVIDER *prov[2] = {NULL, NULL};
int ret = 0;
if (use_default_ctx == 0 && !load_providers(&ctx, prov))
goto err;
md = EVP_MD_fetch(ctx, id, fetch_property);
if (expected_fetch_result != 0) {
if (!test_md(md))
goto err;
/* Also test EVP_MD_up_ref() while we're doing this */
if (!TEST_true(EVP_MD_up_ref(md)))
goto err;
/* Ref count should now be 2. Release first one here */
EVP_MD_free(md);
} else {
if (!TEST_ptr_null(md))
goto err;
}
ret = 1;
err:
EVP_MD_free(md);
unload_providers(&ctx, prov);
return ret;
}
static int test_explicit_EVP_MD_fetch_by_name(void)
{
return test_explicit_EVP_MD_fetch("SHA256");
}
/*
* idx 0: Allow names from OBJ_obj2txt()
* idx 1: Force an OID in text form from OBJ_obj2txt()
*/
static int test_explicit_EVP_MD_fetch_by_X509_ALGOR(int idx)
{
int ret = 0;
X509_ALGOR *algor = make_algor(NID_sha256);
const ASN1_OBJECT *obj;
char id[OSSL_MAX_NAME_SIZE];
if (algor == NULL)
return 0;
X509_ALGOR_get0(&obj, NULL, NULL, algor);
switch (idx) {
case 0:
if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 0), 0))
goto end;
break;
case 1:
if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 1), 0))
goto end;
break;
}
ret = test_explicit_EVP_MD_fetch(id);
end:
X509_ALGOR_free(algor);
return ret;
}
/*
* Test EVP_CIPHER_fetch()
*/
static int encrypt_decrypt(const EVP_CIPHER *cipher, const unsigned char *msg,
size_t len)
{
int ret = 0, ctlen, ptlen;
EVP_CIPHER_CTX *ctx = NULL;
unsigned char key[128 / 8];
unsigned char ct[64], pt[64];
memset(key, 0, sizeof(key));
if (!TEST_ptr(ctx = EVP_CIPHER_CTX_new())
|| !TEST_true(EVP_CipherInit_ex(ctx, cipher, NULL, key, NULL, 1))
|| !TEST_true(EVP_CipherUpdate(ctx, ct, &ctlen, msg, len))
|| !TEST_true(EVP_CipherFinal_ex(ctx, ct, &ctlen))
|| !TEST_true(EVP_CipherInit_ex(ctx, cipher, NULL, key, NULL, 0))
|| !TEST_true(EVP_CipherUpdate(ctx, pt, &ptlen, ct, ctlen))
|| !TEST_true(EVP_CipherFinal_ex(ctx, pt, &ptlen))
|| !TEST_mem_eq(pt, ptlen, msg, len))
goto err;
ret = 1;
err:
EVP_CIPHER_CTX_free(ctx);
return ret;
}
static int test_cipher(const EVP_CIPHER *cipher)
{
const unsigned char testmsg[] = "Hello world";
return TEST_ptr(cipher)
&& TEST_true(encrypt_decrypt(cipher, testmsg, sizeof(testmsg)));
}
static int test_implicit_EVP_CIPHER_fetch(void)
{
OSSL_LIB_CTX *ctx = NULL;
OSSL_PROVIDER *prov[2] = {NULL, NULL};
int ret = 0;
ret = (use_default_ctx == 0 || load_providers(&ctx, prov))
&& test_cipher(EVP_aes_128_cbc());
unload_providers(&ctx, prov);
return ret;
}
static int test_explicit_EVP_CIPHER_fetch(const char *id)
{
OSSL_LIB_CTX *ctx = NULL;
EVP_CIPHER *cipher = NULL;
OSSL_PROVIDER *prov[2] = {NULL, NULL};
int ret = 0;
if (use_default_ctx == 0 && !load_providers(&ctx, prov))
goto err;
cipher = EVP_CIPHER_fetch(ctx, id, fetch_property);
if (expected_fetch_result != 0) {
if (!test_cipher(cipher))
goto err;
if (!TEST_true(EVP_CIPHER_up_ref(cipher)))
goto err;
/* Ref count should now be 2. Release first one here */
EVP_CIPHER_free(cipher);
} else {
if (!TEST_ptr_null(cipher))
goto err;
}
ret = 1;
err:
EVP_CIPHER_free(cipher);
unload_providers(&ctx, prov);
return ret;
}
static int test_explicit_EVP_CIPHER_fetch_by_name(void)
{
return test_explicit_EVP_CIPHER_fetch("AES-128-CBC");
}
/*
* idx 0: Allow names from OBJ_obj2txt()
* idx 1: Force an OID in text form from OBJ_obj2txt()
*/
static int test_explicit_EVP_CIPHER_fetch_by_X509_ALGOR(int idx)
{
int ret = 0;
X509_ALGOR *algor = make_algor(NID_aes_128_cbc);
const ASN1_OBJECT *obj;
char id[OSSL_MAX_NAME_SIZE];
if (algor == NULL)
return 0;
X509_ALGOR_get0(&obj, NULL, NULL, algor);
switch (idx) {
case 0:
if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 0), 0))
goto end;
break;
case 1:
if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 1), 0))
goto end;
break;
}
ret = test_explicit_EVP_CIPHER_fetch(id);
end:
X509_ALGOR_free(algor);
return ret;
}
int setup_tests(void)
{
OPTION_CHOICE o;
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_CONFIG_FILE:
config_file = opt_arg();
break;
case OPT_ALG_FETCH_TYPE:
alg = opt_arg();
break;
case OPT_FETCH_PROPERTY:
fetch_property = opt_arg();
break;
case OPT_FETCH_FAILURE:
expected_fetch_result = 0;
break;
case OPT_USE_DEFAULTCTX:
use_default_ctx = 1;
break;
case OPT_TEST_CASES:
break;
default:
case OPT_ERR:
return 0;
}
}
if (strcmp(alg, "digest") == 0) {
ADD_TEST(test_implicit_EVP_MD_fetch);
ADD_TEST(test_explicit_EVP_MD_fetch_by_name);
ADD_ALL_TESTS_NOSUBTEST(test_explicit_EVP_MD_fetch_by_X509_ALGOR, 2);
} else {
ADD_TEST(test_implicit_EVP_CIPHER_fetch);
ADD_TEST(test_explicit_EVP_CIPHER_fetch_by_name);
ADD_ALL_TESTS_NOSUBTEST(test_explicit_EVP_CIPHER_fetch_by_X509_ALGOR, 2);
}
return 1;
}
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