wolfssl-examples/pkcs11/pkcs11_genecc.c

156 lines
4.3 KiB
C

/* pkcs11_genecc.c
*
* Copyright (C) 2006-2020 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 <wolfssl/options.h>
#include <wolfssl/wolfcrypt/settings.h>
#include <wolfssl/wolfcrypt/wc_pkcs11.h>
#include <wolfssl/wolfcrypt/asn_public.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <wolfssl/wolfcrypt/logging.h>
static WC_RNG rng;
int gen_ec_keys(Pkcs11Token* token, ecc_key* key, unsigned char* id, int idLen,
int devId)
{
int ret;
ret = wc_ecc_init_id(key, id, idLen, NULL, devId);
if (ret != 0)
fprintf(stderr, "Failed to initialize EC key: %d\n", ret);
if (ret == 0) {
ret = wc_ecc_make_key_ex(&rng, 32, key, ECC_CURVE_DEF);
if (ret != 0)
fprintf(stderr, "Failed to generate EC key: %d\n", ret);
}
return ret;
}
int ecdsa_sign_verify(int devId, Pkcs11Token* token)
{
int ret = 0;
byte hash[32], out[128];
word32 hashSz, outSz;
int verify;
ecc_key eccKey;
memset(hash, 9, sizeof(hash));
hashSz = sizeof(hash);
outSz = sizeof(out);
ret = wc_Pkcs11Token_Open(token, 1);
if (ret == 0) {
fprintf(stderr, "Generate EC Keys\n");
ret = gen_ec_keys(token, &eccKey, (unsigned char*)"123ecc", 6, devId);
if (ret == 0) {
ret = wc_ecc_sign_hash(hash, hashSz, out, &outSz, &rng, &eccKey);
if (ret < 0)
fprintf(stderr, "Failed to sign: %d\n", ret);
}
if (ret == 0) {
/* Don't use device for public key operation. */
eccKey.devId = INVALID_DEVID;
ret = wc_ecc_verify_hash(out, outSz, hash, (int)hashSz, &verify,
&eccKey);
if (ret < 0 || !verify)
fprintf(stderr, "Failed to verify: %d (%d)\n", ret, verify);
if (!verify)
ret = -1;
}
wc_Pkcs11Token_Close(token);
wc_ecc_free(&eccKey);
}
return ret;
}
int main(int argc, char* argv[])
{
int ret;
const char* library;
const char* slot;
const char* tokenName;
const char* userPin;
Pkcs11Dev dev;
Pkcs11Token token;
int slotId;
int devId = 1;
if (argc != 5) {
fprintf(stderr,
"Usage: pkcs11_genecc <libname> <slot> <tokenname> <userpin>\n");
return 1;
}
library = argv[1];
slot = argv[2];
tokenName = argv[3];
userPin = argv[4];
slotId = atoi(slot);
#if defined(DEBUG_WOLFSSL)
wolfSSL_Debugging_ON();
#endif
wolfCrypt_Init();
ret = wc_Pkcs11_Initialize(&dev, library, NULL);
if (ret != 0) {
fprintf(stderr, "Failed to initialize PKCS#11 library\n");
ret = 2;
}
if (ret == 0) {
ret = wc_Pkcs11Token_Init(&token, &dev, slotId, tokenName,
(byte*)userPin, strlen(userPin));
if (ret != 0) {
fprintf(stderr, "Failed to initialize PKCS#11 token\n");
ret = 2;
}
if (ret == 0) {
ret = wc_CryptoDev_RegisterDevice(devId, wc_Pkcs11_CryptoDevCb,
&token);
if (ret != 0) {
fprintf(stderr, "Failed to register PKCS#11 token\n");
ret = 2;
}
if (ret == 0) {
wc_InitRng_ex(&rng, NULL, devId);
ret = ecdsa_sign_verify(devId, &token);
if (ret != 0)
ret = 1;
wc_FreeRng(&rng);
}
wc_Pkcs11Token_Final(&token);
}
wc_Pkcs11_Finalize(&dev);
}
wolfCrypt_Cleanup();
return ret;
}