mirror of
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fecb3aae22
Reviewed-by: Tomas Mraz <tomas@openssl.org> Release: yes
393 lines
10 KiB
C
393 lines
10 KiB
C
/*
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* Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* SHA256 low level APIs are deprecated for public use, but still ok for
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* internal use. Note, that due to symbols not being exported, only the
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* #defines can be accessed. In this case SHA256_CBLOCK.
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*/
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#include "internal/deprecated.h"
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#include <string.h>
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#include <openssl/sha.h>
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#include <openssl/evp.h>
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#include <openssl/provider.h>
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#include "internal/sizes.h"
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#include "testutil.h"
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static char *config_file = NULL;
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static char *alg = "digest";
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static int use_default_ctx = 0;
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static char *fetch_property = NULL;
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static int expected_fetch_result = 1;
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typedef enum OPTION_choice {
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OPT_ERR = -1,
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OPT_EOF = 0,
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OPT_ALG_FETCH_TYPE,
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OPT_FETCH_PROPERTY,
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OPT_FETCH_FAILURE,
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OPT_USE_DEFAULTCTX,
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OPT_CONFIG_FILE,
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OPT_TEST_ENUM
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} OPTION_CHOICE;
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const OPTIONS *test_get_options(void)
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{
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static const OPTIONS test_options[] = {
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OPT_TEST_OPTIONS_WITH_EXTRA_USAGE("[provname...]\n"),
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{ "config", OPT_CONFIG_FILE, '<', "The configuration file to use for the libctx" },
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{ "type", OPT_ALG_FETCH_TYPE, 's', "The fetch type to test" },
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{ "property", OPT_FETCH_PROPERTY, 's', "The fetch property e.g. provider=fips" },
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{ "fetchfail", OPT_FETCH_FAILURE, '-', "fetch is expected to fail" },
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{ "defaultctx", OPT_USE_DEFAULTCTX, '-',
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"Use the default context if this is set" },
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{ OPT_HELP_STR, 1, '-', "file\tProvider names to explicitly load\n" },
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{ NULL }
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};
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return test_options;
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}
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static int calculate_digest(const EVP_MD *md, const char *msg, size_t len,
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const unsigned char *exptd)
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{
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unsigned char out[SHA256_DIGEST_LENGTH];
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EVP_MD_CTX *ctx;
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int ret = 0;
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if (!TEST_ptr(ctx = EVP_MD_CTX_new())
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|| !TEST_true(EVP_DigestInit_ex(ctx, md, NULL))
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|| !TEST_true(EVP_DigestUpdate(ctx, msg, len))
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|| !TEST_true(EVP_DigestFinal_ex(ctx, out, NULL))
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|| !TEST_mem_eq(out, SHA256_DIGEST_LENGTH, exptd,
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SHA256_DIGEST_LENGTH)
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|| !TEST_true(md == EVP_MD_CTX_get0_md(ctx)))
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goto err;
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ret = 1;
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err:
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EVP_MD_CTX_free(ctx);
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return ret;
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}
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static int load_providers(OSSL_LIB_CTX **libctx, OSSL_PROVIDER *prov[])
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{
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OSSL_LIB_CTX *ctx = NULL;
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int ret = 0;
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size_t i;
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ctx = OSSL_LIB_CTX_new();
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if (!TEST_ptr(ctx))
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goto err;
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if (!TEST_true(OSSL_LIB_CTX_load_config(ctx, config_file)))
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goto err;
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if (test_get_argument_count() > 2)
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goto err;
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for (i = 0; i < test_get_argument_count(); ++i) {
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char *provname = test_get_argument(i);
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prov[i] = OSSL_PROVIDER_load(ctx, provname);
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if (!TEST_ptr(prov[i]))
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goto err;
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}
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ret = 1;
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*libctx = ctx;
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err:
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if (ret == 0)
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OSSL_LIB_CTX_free(ctx);
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return ret;
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}
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static void unload_providers(OSSL_LIB_CTX **libctx, OSSL_PROVIDER *prov[])
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{
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if (prov[0] != NULL)
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OSSL_PROVIDER_unload(prov[0]);
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if (prov[1] != NULL)
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OSSL_PROVIDER_unload(prov[1]);
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/* Not normally needed, but we would like to test that
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* OPENSSL_thread_stop_ex() behaves as expected.
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*/
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if (libctx != NULL && *libctx != NULL) {
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OPENSSL_thread_stop_ex(*libctx);
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OSSL_LIB_CTX_free(*libctx);
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}
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}
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static X509_ALGOR *make_algor(int nid)
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{
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X509_ALGOR *algor;
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if (!TEST_ptr(algor = X509_ALGOR_new())
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|| !TEST_true(X509_ALGOR_set0(algor, OBJ_nid2obj(nid),
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V_ASN1_UNDEF, NULL))) {
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X509_ALGOR_free(algor);
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return NULL;
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}
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return algor;
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}
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/*
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* Test EVP_MD_fetch()
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*/
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static int test_md(const EVP_MD *md)
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{
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const char testmsg[] = "Hello world";
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const unsigned char exptd[] = {
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0x27, 0x51, 0x8b, 0xa9, 0x68, 0x30, 0x11, 0xf6, 0xb3, 0x96, 0x07, 0x2c,
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0x05, 0xf6, 0x65, 0x6d, 0x04, 0xf5, 0xfb, 0xc3, 0x78, 0x7c, 0xf9, 0x24,
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0x90, 0xec, 0x60, 0x6e, 0x50, 0x92, 0xe3, 0x26
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};
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return TEST_ptr(md)
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&& TEST_true(EVP_MD_is_a(md, "SHA256"))
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&& TEST_true(calculate_digest(md, testmsg, sizeof(testmsg), exptd))
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&& TEST_int_eq(EVP_MD_get_size(md), SHA256_DIGEST_LENGTH)
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&& TEST_int_eq(EVP_MD_get_block_size(md), SHA256_CBLOCK);
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}
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static int test_implicit_EVP_MD_fetch(void)
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{
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OSSL_LIB_CTX *ctx = NULL;
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OSSL_PROVIDER *prov[2] = {NULL, NULL};
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int ret = 0;
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ret = (use_default_ctx == 0 || load_providers(&ctx, prov))
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&& test_md(EVP_sha256());
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unload_providers(&ctx, prov);
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return ret;
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}
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static int test_explicit_EVP_MD_fetch(const char *id)
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{
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OSSL_LIB_CTX *ctx = NULL;
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EVP_MD *md = NULL;
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OSSL_PROVIDER *prov[2] = {NULL, NULL};
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int ret = 0;
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if (use_default_ctx == 0 && !load_providers(&ctx, prov))
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goto err;
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md = EVP_MD_fetch(ctx, id, fetch_property);
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if (expected_fetch_result != 0) {
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if (!test_md(md))
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goto err;
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/* Also test EVP_MD_up_ref() while we're doing this */
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if (!TEST_true(EVP_MD_up_ref(md)))
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goto err;
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/* Ref count should now be 2. Release first one here */
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EVP_MD_free(md);
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} else {
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if (!TEST_ptr_null(md))
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goto err;
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}
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ret = 1;
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err:
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EVP_MD_free(md);
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unload_providers(&ctx, prov);
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return ret;
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}
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static int test_explicit_EVP_MD_fetch_by_name(void)
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{
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return test_explicit_EVP_MD_fetch("SHA256");
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}
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/*
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* idx 0: Allow names from OBJ_obj2txt()
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* idx 1: Force an OID in text form from OBJ_obj2txt()
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*/
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static int test_explicit_EVP_MD_fetch_by_X509_ALGOR(int idx)
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{
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int ret = 0;
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X509_ALGOR *algor = make_algor(NID_sha256);
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const ASN1_OBJECT *obj;
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char id[OSSL_MAX_NAME_SIZE] = { 0 };
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if (algor == NULL)
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return 0;
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X509_ALGOR_get0(&obj, NULL, NULL, algor);
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switch (idx) {
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case 0:
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if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 0), 0))
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goto end;
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break;
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case 1:
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if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 1), 0))
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goto end;
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break;
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}
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ret = test_explicit_EVP_MD_fetch(id);
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end:
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X509_ALGOR_free(algor);
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return ret;
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}
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/*
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* Test EVP_CIPHER_fetch()
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*/
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static int encrypt_decrypt(const EVP_CIPHER *cipher, const unsigned char *msg,
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size_t len)
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{
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int ret = 0, ctlen, ptlen;
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EVP_CIPHER_CTX *ctx = NULL;
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unsigned char key[128 / 8];
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unsigned char ct[64], pt[64];
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memset(key, 0, sizeof(key));
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if (!TEST_ptr(ctx = EVP_CIPHER_CTX_new())
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|| !TEST_true(EVP_CipherInit_ex(ctx, cipher, NULL, key, NULL, 1))
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|| !TEST_true(EVP_CipherUpdate(ctx, ct, &ctlen, msg, len))
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|| !TEST_true(EVP_CipherFinal_ex(ctx, ct, &ctlen))
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|| !TEST_true(EVP_CipherInit_ex(ctx, cipher, NULL, key, NULL, 0))
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|| !TEST_true(EVP_CipherUpdate(ctx, pt, &ptlen, ct, ctlen))
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|| !TEST_true(EVP_CipherFinal_ex(ctx, pt, &ptlen))
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|| !TEST_mem_eq(pt, ptlen, msg, len))
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goto err;
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ret = 1;
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err:
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EVP_CIPHER_CTX_free(ctx);
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return ret;
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}
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static int test_cipher(const EVP_CIPHER *cipher)
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{
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const unsigned char testmsg[] = "Hello world";
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return TEST_ptr(cipher)
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&& TEST_true(encrypt_decrypt(cipher, testmsg, sizeof(testmsg)));
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}
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static int test_implicit_EVP_CIPHER_fetch(void)
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{
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OSSL_LIB_CTX *ctx = NULL;
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OSSL_PROVIDER *prov[2] = {NULL, NULL};
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int ret = 0;
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ret = (use_default_ctx == 0 || load_providers(&ctx, prov))
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&& test_cipher(EVP_aes_128_cbc());
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unload_providers(&ctx, prov);
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return ret;
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}
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static int test_explicit_EVP_CIPHER_fetch(const char *id)
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{
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OSSL_LIB_CTX *ctx = NULL;
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EVP_CIPHER *cipher = NULL;
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OSSL_PROVIDER *prov[2] = {NULL, NULL};
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int ret = 0;
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if (use_default_ctx == 0 && !load_providers(&ctx, prov))
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goto err;
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cipher = EVP_CIPHER_fetch(ctx, id, fetch_property);
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if (expected_fetch_result != 0) {
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if (!test_cipher(cipher))
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goto err;
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if (!TEST_true(EVP_CIPHER_up_ref(cipher)))
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goto err;
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/* Ref count should now be 2. Release first one here */
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EVP_CIPHER_free(cipher);
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} else {
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if (!TEST_ptr_null(cipher))
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goto err;
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}
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ret = 1;
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err:
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EVP_CIPHER_free(cipher);
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unload_providers(&ctx, prov);
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return ret;
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}
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static int test_explicit_EVP_CIPHER_fetch_by_name(void)
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{
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return test_explicit_EVP_CIPHER_fetch("AES-128-CBC");
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}
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/*
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* idx 0: Allow names from OBJ_obj2txt()
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* idx 1: Force an OID in text form from OBJ_obj2txt()
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*/
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static int test_explicit_EVP_CIPHER_fetch_by_X509_ALGOR(int idx)
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{
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int ret = 0;
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X509_ALGOR *algor = make_algor(NID_aes_128_cbc);
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const ASN1_OBJECT *obj;
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char id[OSSL_MAX_NAME_SIZE] = { 0 };
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if (algor == NULL)
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return 0;
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X509_ALGOR_get0(&obj, NULL, NULL, algor);
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switch (idx) {
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case 0:
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if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 0), 0))
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goto end;
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break;
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case 1:
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if (!TEST_int_gt(OBJ_obj2txt(id, sizeof(id), obj, 1), 0))
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goto end;
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break;
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}
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ret = test_explicit_EVP_CIPHER_fetch(id);
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end:
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X509_ALGOR_free(algor);
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return ret;
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}
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int setup_tests(void)
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{
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OPTION_CHOICE o;
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while ((o = opt_next()) != OPT_EOF) {
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switch (o) {
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case OPT_CONFIG_FILE:
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config_file = opt_arg();
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break;
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case OPT_ALG_FETCH_TYPE:
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alg = opt_arg();
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break;
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case OPT_FETCH_PROPERTY:
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fetch_property = opt_arg();
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break;
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case OPT_FETCH_FAILURE:
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expected_fetch_result = 0;
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break;
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case OPT_USE_DEFAULTCTX:
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use_default_ctx = 1;
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break;
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case OPT_TEST_CASES:
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break;
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default:
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case OPT_ERR:
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return 0;
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}
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}
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if (strcmp(alg, "digest") == 0) {
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ADD_TEST(test_implicit_EVP_MD_fetch);
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ADD_TEST(test_explicit_EVP_MD_fetch_by_name);
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ADD_ALL_TESTS_NOSUBTEST(test_explicit_EVP_MD_fetch_by_X509_ALGOR, 2);
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} else {
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ADD_TEST(test_implicit_EVP_CIPHER_fetch);
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ADD_TEST(test_explicit_EVP_CIPHER_fetch_by_name);
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ADD_ALL_TESTS_NOSUBTEST(test_explicit_EVP_CIPHER_fetch_by_X509_ALGOR, 2);
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}
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return 1;
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}
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