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/*
* Copyright 2007-2021 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 with_ss;
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 an 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, libctx))
|| !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, libctx))) {
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, libctx))) {
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)
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