wolfssl-examples/certstore/certverify.c

114 lines
3.2 KiB
C

/* certverify.c
*
* Copyright (C) 2006-2018 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#include <stdio.h>
#include <wolfssl/options.h>
#include <wolfssl/ssl.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <wolfssl/test.h>
int main(int argc, char** argv)
{
FILE* file;
int ret = 0;
X509_STORE* store = NULL;
X509_STORE_CTX* ctx = NULL;
X509 *ca = NULL, *cert = NULL;
const char* caCert = "../certs/ca-cert.pem";
const char* verifyCert = "../certs/server-cert.pem";
/* check if CA and x509 were passed in */
if (argc > 1 && strcmp(argv[1], "-h") == 0) {
printf("%s <ca pem file> <cert pem file>\n", argv[0]);
return 1;
}
if (argc == 3) {
caCert = argv[1];
verifyCert = argv[2];
}
wolfSSL_Init();
#ifdef DEBUG_WOLFSSL
wolfSSL_Debugging_ON();
#endif
/* read in CA cert */
file = fopen(caCert, "rb");
if (file == NULL) {
printf("Failed to open %s\n", caCert);
ret = -1; goto exit;
}
ca = PEM_read_X509(file, NULL, NULL, NULL);
fclose(file);
if (ca == NULL) {
printf("Failed to convert %s to X509\n", caCert);
ret = -1; goto exit;
}
/* read in cert to verify */
file = fopen(verifyCert, "rb");
if (file == NULL) {
printf("Failed to open %s\n", verifyCert);
ret = -1; goto exit;
}
cert = PEM_read_X509(file, NULL, NULL, NULL);
fclose(file);
if (cert == NULL) {
printf("Failed to convert %s to X509\n", verifyCert);
ret = -1; goto exit;
}
/* setup the x509 cert store */
store = X509_STORE_new();
if (X509_STORE_add_cert(store, ca) != WOLFSSL_SUCCESS) {
printf("Failed to add CA to X509 STORE\n");
ret = -1; goto exit;
}
/* setup the x509 cert store contex */
ctx = X509_STORE_CTX_new();
if (X509_STORE_CTX_init(ctx, store, cert, NULL) != WOLFSSL_SUCCESS) {
printf("Failed to initialize X509 STORE CTX\n");
ret = -1; goto exit;
}
/* attempt verify */
if (X509_verify_cert(ctx) == WOLFSSL_SUCCESS) {
printf("Verified certificate %s\n", verifyCert);
}
else {
int err = X509_STORE_CTX_get_error(ctx);
printf("Failed to verified certificate %s\n", verifyCert);
printf("Error [%d] reason [%s]\n", err, ERR_reason_error_string(err));
}
exit:
X509_STORE_free(store);
X509_STORE_CTX_free(ctx);
X509_free(ca);
X509_free(cert);
wolfSSL_Cleanup();
return ret;
}