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openssl/test/cmp_protect_test.c

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/*
* Copyright 2007-2020 The OpenSSL Project Authors. All Rights Reserved.
* Copyright Nokia 2007-2019
* Copyright Siemens AG 2015-2019
*
* 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 "helpers/cmp_testlib.h"
static const char *ir_protected_f;
static const char *ir_unprotected_f;
static const char *ip_PBM_f;
typedef struct test_fixture {
const char *test_case_name;
OSSL_CMP_CTX *cmp_ctx;
/* for protection tests */
OSSL_CMP_MSG *msg;
OSSL_CMP_PKISI *si; /* for error and response messages */
EVP_PKEY *pubkey;
unsigned char *mem;
int memlen;
X509 *cert;
STACK_OF(X509) *certs;
STACK_OF(X509) *chain;
int callback_arg;
int expected;
} CMP_PROTECT_TEST_FIXTURE;
static OSSL_LIB_CTX *libctx = NULL;
static OSSL_PROVIDER *default_null_provider = NULL, *provider = NULL;
static void tear_down(CMP_PROTECT_TEST_FIXTURE *fixture)
{
OSSL_CMP_CTX_free(fixture->cmp_ctx);
OSSL_CMP_MSG_free(fixture->msg);
OSSL_CMP_PKISI_free(fixture->si);
OPENSSL_free(fixture->mem);
sk_X509_free(fixture->certs);
sk_X509_free(fixture->chain);
OPENSSL_free(fixture);
}
static CMP_PROTECT_TEST_FIXTURE *set_up(const char *const test_case_name)
{
CMP_PROTECT_TEST_FIXTURE *fixture;
if (!TEST_ptr(fixture = OPENSSL_zalloc(sizeof(*fixture))))
return NULL;
fixture->test_case_name = test_case_name;
if (!TEST_ptr(fixture->cmp_ctx = OSSL_CMP_CTX_new(libctx, NULL))) {
tear_down(fixture);
return NULL;
}
return fixture;
}
static EVP_PKEY *loadedprivkey = NULL;
static EVP_PKEY *loadedpubkey = NULL;
static EVP_PKEY *loadedkey = NULL;
static X509 *cert = NULL;
static unsigned char rand_data[OSSL_CMP_TRANSACTIONID_LENGTH];
static OSSL_CMP_MSG *ir_unprotected, *ir_protected;
static X509 *endentity1 = NULL, *endentity2 = NULL,
*root = NULL, *intermediate = NULL;
static int execute_calc_protection_fails_test(CMP_PROTECT_TEST_FIXTURE *fixture)
{
ASN1_BIT_STRING *protection =
ossl_cmp_calc_protection(fixture->cmp_ctx, fixture->msg);
int res = TEST_ptr_null(protection);
ASN1_BIT_STRING_free(protection);
return res;
}
static int execute_calc_protection_pbmac_test(CMP_PROTECT_TEST_FIXTURE *fixture)
{
ASN1_BIT_STRING *protection =
ossl_cmp_calc_protection(fixture->cmp_ctx, fixture->msg);
int res = TEST_ptr(protection)
&& TEST_true(ASN1_STRING_cmp(protection,
fixture->msg->protection) == 0);
ASN1_BIT_STRING_free(protection);
return res;
}
/*
* This function works similarly to parts of CMP_verify_signature in cmp_vfy.c,
* but without the need for a OSSL_CMP_CTX or a X509 certificate
*/
static int verify_signature(OSSL_CMP_MSG *msg,
ASN1_BIT_STRING *protection,
EVP_PKEY *pkey, EVP_MD *digest)
{
OSSL_CMP_PROTECTEDPART prot_part;
unsigned char *prot_part_der = NULL;
int len;
EVP_MD_CTX *ctx = NULL;
int res;
prot_part.header = OSSL_CMP_MSG_get0_header(msg);
prot_part.body = msg->body;
len = i2d_OSSL_CMP_PROTECTEDPART(&prot_part, &prot_part_der);
res =
TEST_int_ge(len, 0)
&& TEST_ptr(ctx = EVP_MD_CTX_new())
&& TEST_true(EVP_DigestVerifyInit(ctx, NULL, digest, NULL, pkey))
&& TEST_int_eq(EVP_DigestVerify(ctx, protection->data,
protection->length,
prot_part_der, len), 1);
/* cleanup */
EVP_MD_CTX_free(ctx);
OPENSSL_free(prot_part_der);
return res;
}
/* Calls OSSL_CMP_calc_protection and compares and verifies signature */
static int execute_calc_protection_signature_test(CMP_PROTECT_TEST_FIXTURE *
fixture)
{
ASN1_BIT_STRING *protection =
ossl_cmp_calc_protection(fixture->cmp_ctx, fixture->msg);
int ret = (TEST_ptr(protection)
&& TEST_true(ASN1_STRING_cmp(protection,
fixture->msg->protection) == 0)
&& TEST_true(verify_signature(fixture->msg, protection,
fixture->pubkey,
fixture->cmp_ctx->digest)));
ASN1_BIT_STRING_free(protection);
return ret;
}
static int test_cmp_calc_protection_no_key_no_secret(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
if (!TEST_ptr(fixture->msg = load_pkimsg(ir_unprotected_f))
|| !TEST_ptr(fixture->msg->header->protectionAlg =
X509_ALGOR_new() /* no specific alg needed here */)) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_calc_protection_fails_test, tear_down);
return result;
}
static int test_cmp_calc_protection_pkey(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->pubkey = loadedpubkey;
if (!TEST_true(OSSL_CMP_CTX_set1_pkey(fixture->cmp_ctx, loadedprivkey))
|| !TEST_ptr(fixture->msg = load_pkimsg(ir_protected_f))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_calc_protection_signature_test, tear_down);
return result;
}
static int test_cmp_calc_protection_pbmac(void)
{
unsigned char sec_insta[] = { 'i', 'n', 's', 't', 'a' };
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
if (!TEST_true(OSSL_CMP_CTX_set1_secretValue(fixture->cmp_ctx,
sec_insta, sizeof(sec_insta)))
|| !TEST_ptr(fixture->msg = load_pkimsg(ip_PBM_f))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_calc_protection_pbmac_test, tear_down);
return result;
}
static int execute_MSG_protect_test(CMP_PROTECT_TEST_FIXTURE *fixture)
{
return TEST_int_eq(fixture->expected,
ossl_cmp_msg_protect(fixture->cmp_ctx, fixture->msg));
}
#define SET_OPT_UNPROTECTED_SEND(ctx, val) \
OSSL_CMP_CTX_set_option((ctx), OSSL_CMP_OPT_UNPROTECTED_SEND, (val))
static int test_MSG_protect_unprotected_request(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 1;
if (!TEST_ptr(fixture->msg = OSSL_CMP_MSG_dup(ir_unprotected))
|| !TEST_true(SET_OPT_UNPROTECTED_SEND(fixture->cmp_ctx, 1))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_MSG_protect_test, tear_down);
return result;
}
static int test_MSG_protect_with_msg_sig_alg_protection_plus_rsa_key(void)
{
const size_t size = sizeof(rand_data) / 2;
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 1;
if (!TEST_ptr(fixture->msg = OSSL_CMP_MSG_dup(ir_unprotected))
|| !TEST_true(SET_OPT_UNPROTECTED_SEND(fixture->cmp_ctx, 0))
/*
* Use half of the 16 bytes of random input
* for each reference and secret value
*/
|| !TEST_true(OSSL_CMP_CTX_set1_referenceValue(fixture->cmp_ctx,
rand_data, size))
|| !TEST_true(OSSL_CMP_CTX_set1_secretValue(fixture->cmp_ctx,
rand_data + size,
size))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_MSG_protect_test, tear_down);
return result;
}
static int test_MSG_protect_with_certificate_and_key(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 1;
if (!TEST_ptr(fixture->msg =
OSSL_CMP_MSG_dup(ir_unprotected))
|| !TEST_true(SET_OPT_UNPROTECTED_SEND(fixture->cmp_ctx, 0))
|| !TEST_true(OSSL_CMP_CTX_set1_pkey(fixture->cmp_ctx, loadedkey))
|| !TEST_true(OSSL_CMP_CTX_set1_cert(fixture->cmp_ctx, cert))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_MSG_protect_test, tear_down);
return result;
}
static int test_MSG_protect_certificate_based_without_cert(void)
{
OSSL_CMP_CTX *ctx;
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
ctx = fixture->cmp_ctx;
fixture->expected = 0;
if (!TEST_ptr(fixture->msg =
OSSL_CMP_MSG_dup(ir_unprotected))
|| !TEST_true(SET_OPT_UNPROTECTED_SEND(ctx, 0))
|| !TEST_true(OSSL_CMP_CTX_set0_newPkey(ctx, 1, loadedkey))) {
tear_down(fixture);
fixture = NULL;
}
EVP_PKEY_up_ref(loadedkey);
EXECUTE_TEST(execute_MSG_protect_test, tear_down);
return result;
}
static int test_MSG_protect_no_key_no_secret(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 0;
if (!TEST_ptr(fixture->msg = OSSL_CMP_MSG_dup(ir_unprotected))
|| !TEST_true(SET_OPT_UNPROTECTED_SEND(fixture->cmp_ctx, 0))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_MSG_protect_test, tear_down);
return result;
}
static int test_MSG_protect_pbmac_no_sender(int with_ref)
{
static unsigned char secret[] = { 47, 11, 8, 15 };
static unsigned char ref[] = { 0xca, 0xfe, 0xba, 0xbe };
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = with_ref;
if (!TEST_ptr(fixture->msg = OSSL_CMP_MSG_dup(ir_unprotected))
|| !SET_OPT_UNPROTECTED_SEND(fixture->cmp_ctx, 0)
|| !ossl_cmp_hdr_set1_sender(fixture->msg->header, NULL)
|| !OSSL_CMP_CTX_set1_secretValue(fixture->cmp_ctx,
secret, sizeof(secret))
|| (!OSSL_CMP_CTX_set1_referenceValue(fixture->cmp_ctx,
with_ref ? ref : NULL,
sizeof(ref)))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_MSG_protect_test, tear_down);
return result;
}
static int test_MSG_protect_pbmac_no_sender_with_ref(void)
{
return test_MSG_protect_pbmac_no_sender(1);
}
static int test_MSG_protect_pbmac_no_sender_no_ref(void)
{
return test_MSG_protect_pbmac_no_sender(0);
}
static int execute_MSG_add_extraCerts_test(CMP_PROTECT_TEST_FIXTURE *fixture)
{
return TEST_true(ossl_cmp_msg_add_extraCerts(fixture->cmp_ctx,
fixture->msg));
}
static int test_MSG_add_extraCerts(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
if (!TEST_ptr(fixture->msg = OSSL_CMP_MSG_dup(ir_protected))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_MSG_add_extraCerts_test, tear_down);
return result;
}
#ifndef OPENSSL_NO_EC
/* The cert chain tests use EC certs so we skip them in no-ec builds */
static int execute_cmp_build_cert_chain_test(CMP_PROTECT_TEST_FIXTURE *fixture)
{
int ret = 0;
OSSL_CMP_CTX *ctx = fixture->cmp_ctx;
X509_STORE *store;
STACK_OF(X509) *chain =
ossl_cmp_build_cert_chain(ctx->libctx, ctx->propq, NULL,
fixture->certs, fixture->cert);
if (TEST_ptr(chain)) {
/* Check whether chain built is equal to the expected one */
ret = TEST_int_eq(0, STACK_OF_X509_cmp(chain, fixture->chain));
sk_X509_pop_free(chain, X509_free);
}
if (!ret)
return 0;
if (TEST_ptr(store = X509_STORE_new())
&& TEST_true(X509_STORE_add_cert(store, root))) {
X509_VERIFY_PARAM_set_flags(X509_STORE_get0_param(store),
X509_V_FLAG_NO_CHECK_TIME);
chain = ossl_cmp_build_cert_chain(ctx->libctx, ctx->propq,
store, fixture->certs, fixture->cert);
ret = TEST_int_eq(fixture->expected, chain != NULL);
if (ret && chain != NULL) {
/* Check whether chain built is equal to the expected one */
ret = TEST_int_eq(0, STACK_OF_X509_cmp(chain, fixture->chain));
sk_X509_pop_free(chain, X509_free);
}
}
X509_STORE_free(store);
return ret;
}
static int test_cmp_build_cert_chain(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 1;
fixture->cert = endentity2;
if (!TEST_ptr(fixture->certs = sk_X509_new_null())
|| !TEST_ptr(fixture->chain = sk_X509_new_null())
|| !TEST_true(sk_X509_push(fixture->certs, endentity1))
|| !TEST_true(sk_X509_push(fixture->certs, root))
|| !TEST_true(sk_X509_push(fixture->certs, intermediate))
|| !TEST_true(sk_X509_push(fixture->chain, endentity2))
|| !TEST_true(sk_X509_push(fixture->chain, intermediate))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_cmp_build_cert_chain_test, tear_down);
return result;
}
static int test_cmp_build_cert_chain_missing_intermediate(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 0;
fixture->cert = endentity2;
if (!TEST_ptr(fixture->certs = sk_X509_new_null())
|| !TEST_ptr(fixture->chain = sk_X509_new_null())
|| !TEST_true(sk_X509_push(fixture->certs, endentity1))
|| !TEST_true(sk_X509_push(fixture->certs, root))
|| !TEST_true(sk_X509_push(fixture->chain, endentity2))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_cmp_build_cert_chain_test, tear_down);
return result;
}
static int test_cmp_build_cert_chain_no_root(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 1;
fixture->cert = endentity2;
if (!TEST_ptr(fixture->certs = sk_X509_new_null())
|| !TEST_ptr(fixture->chain = sk_X509_new_null())
|| !TEST_true(sk_X509_push(fixture->certs, endentity1))
|| !TEST_true(sk_X509_push(fixture->certs, intermediate))
|| !TEST_true(sk_X509_push(fixture->chain, endentity2))
|| !TEST_true(sk_X509_push(fixture->chain, intermediate))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_cmp_build_cert_chain_test, tear_down);
return result;
}
static int test_cmp_build_cert_chain_no_certs(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->expected = 0;
fixture->cert = endentity2;
if (!TEST_ptr(fixture->certs = sk_X509_new_null())
|| !TEST_ptr(fixture->chain = sk_X509_new_null())
|| !TEST_true(sk_X509_push(fixture->chain, endentity2))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_cmp_build_cert_chain_test, tear_down);
return result;
}
#endif /* OPENSSL_NO_EC */
static int execute_X509_STORE_test(CMP_PROTECT_TEST_FIXTURE *fixture)
{
X509_STORE *store = X509_STORE_new();
STACK_OF(X509) *sk = NULL;
int res = 0;
if (!TEST_true(ossl_cmp_X509_STORE_add1_certs(store,
fixture->certs,
fixture->callback_arg)))
goto err;
sk = X509_STORE_get1_all_certs(store);
if (!TEST_int_eq(0, STACK_OF_X509_cmp(sk, fixture->chain)))
goto err;
res = 1;
err:
X509_STORE_free(store);
sk_X509_pop_free(sk, X509_free);
return res;
}
static int test_X509_STORE(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->callback_arg = 0; /* self-issued allowed */
if (!TEST_ptr(fixture->certs = sk_X509_new_null())
|| !sk_X509_push(fixture->certs, endentity1)
|| !sk_X509_push(fixture->certs, endentity2)
|| !sk_X509_push(fixture->certs, root)
|| !sk_X509_push(fixture->certs, intermediate)
|| !TEST_ptr(fixture->chain = sk_X509_dup(fixture->certs))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_X509_STORE_test, tear_down);
return result;
}
static int test_X509_STORE_only_self_issued(void)
{
SETUP_TEST_FIXTURE(CMP_PROTECT_TEST_FIXTURE, set_up);
fixture->certs = sk_X509_new_null();
fixture->chain = sk_X509_new_null();
fixture->callback_arg = 1; /* only self-issued */
if (!TEST_true(sk_X509_push(fixture->certs, endentity1))
|| !TEST_true(sk_X509_push(fixture->certs, endentity2))
|| !TEST_true(sk_X509_push(fixture->certs, root))
|| !TEST_true(sk_X509_push(fixture->certs, intermediate))
|| !TEST_true(sk_X509_push(fixture->chain, root))) {
tear_down(fixture);
fixture = NULL;
}
EXECUTE_TEST(execute_X509_STORE_test, tear_down);
return result;
}
void cleanup_tests(void)
{
EVP_PKEY_free(loadedprivkey);
EVP_PKEY_free(loadedpubkey);
EVP_PKEY_free(loadedkey);
X509_free(cert);
X509_free(endentity1);
X509_free(endentity2);
X509_free(root);
X509_free(intermediate);
OSSL_CMP_MSG_free(ir_protected);
OSSL_CMP_MSG_free(ir_unprotected);
OSSL_LIB_CTX_free(libctx);
}
#define USAGE "server.pem IR_protected.der IR_unprotected.der IP_PBM.der " \
"server.crt server.pem EndEntity1.crt EndEntity2.crt Root_CA.crt " \
"Intermediate_CA.crt module_name [module_conf_file]\n"
OPT_TEST_DECLARE_USAGE(USAGE)
int setup_tests(void)
{
char *server_f;
char *server_key_f;
char *server_cert_f;
char *endentity1_f;
char *endentity2_f;
char *root_f;
char *intermediate_f;
if (!test_skip_common_options()) {
TEST_error("Error parsing test options\n");
return 0;
}
RAND_bytes(rand_data, OSSL_CMP_TRANSACTIONID_LENGTH);
if (!TEST_ptr(server_f = test_get_argument(0))
|| !TEST_ptr(ir_protected_f = test_get_argument(1))
|| !TEST_ptr(ir_unprotected_f = test_get_argument(2))
|| !TEST_ptr(ip_PBM_f = test_get_argument(3))
|| !TEST_ptr(server_cert_f = test_get_argument(4))
|| !TEST_ptr(server_key_f = test_get_argument(5))
|| !TEST_ptr(endentity1_f = test_get_argument(6))
|| !TEST_ptr(endentity2_f = test_get_argument(7))
|| !TEST_ptr(root_f = test_get_argument(8))
|| !TEST_ptr(intermediate_f = test_get_argument(9))) {
TEST_error("usage: cmp_protect_test %s", USAGE);
return 0;
}
if (!test_arg_libctx(&libctx, &default_null_provider, &provider, 10, USAGE))
return 0;
if (!TEST_ptr(loadedkey = load_pkey_pem(server_key_f, libctx))
|| !TEST_ptr(cert = load_cert_pem(server_cert_f, libctx)))
return 0;
if (!TEST_ptr(loadedprivkey = load_pkey_pem(server_f, libctx)))
return 0;
if (TEST_true(EVP_PKEY_up_ref(loadedprivkey)))
loadedpubkey = loadedprivkey;
if (!TEST_ptr(ir_protected = load_pkimsg(ir_protected_f))
|| !TEST_ptr(ir_unprotected = load_pkimsg(ir_unprotected_f)))
return 0;
if (!TEST_ptr(endentity1 = load_cert_pem(endentity1_f, libctx))
|| !TEST_ptr(endentity2 = load_cert_pem(endentity2_f, libctx))
|| !TEST_ptr(root = load_cert_pem(root_f, libctx))
|| !TEST_ptr(intermediate = load_cert_pem(intermediate_f, libctx)))
return 0;
if (!TEST_int_eq(1, RAND_bytes(rand_data, OSSL_CMP_TRANSACTIONID_LENGTH)))
return 0;
/* Message protection tests */
ADD_TEST(test_cmp_calc_protection_no_key_no_secret);
ADD_TEST(test_cmp_calc_protection_pkey);
ADD_TEST(test_cmp_calc_protection_pbmac);
ADD_TEST(test_MSG_protect_with_msg_sig_alg_protection_plus_rsa_key);
ADD_TEST(test_MSG_protect_with_certificate_and_key);
ADD_TEST(test_MSG_protect_certificate_based_without_cert);
ADD_TEST(test_MSG_protect_unprotected_request);
ADD_TEST(test_MSG_protect_no_key_no_secret);
ADD_TEST(test_MSG_protect_pbmac_no_sender_with_ref);
ADD_TEST(test_MSG_protect_pbmac_no_sender_no_ref);
ADD_TEST(test_MSG_add_extraCerts);
#ifndef OPENSSL_NO_EC
ADD_TEST(test_cmp_build_cert_chain);
ADD_TEST(test_cmp_build_cert_chain_no_root);
ADD_TEST(test_cmp_build_cert_chain_missing_intermediate);
ADD_TEST(test_cmp_build_cert_chain_no_certs);
#endif
ADD_TEST(test_X509_STORE);
ADD_TEST(test_X509_STORE_only_self_issued);
return 1;
}
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