wolfssl-examples/pkcs11/pkcs11_aesgcm.c

126 lines
3.4 KiB
C

#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>
#if !defined(NO_AES) && defined(HAVE_AESGCM)
int aesgcm_enc_dec(int devId)
{
Aes aesEnc;
Aes aesDec;
unsigned char key[AES_256_KEY_SIZE];
int ret = 0;
unsigned char data[33];
unsigned char enc[33];
unsigned char dec[33];
unsigned char iv[GCM_NONCE_MID_SZ];
unsigned char authTag[AES_BLOCK_SIZE];
memset(key, 9, sizeof(key));
memset(data, 9, sizeof(data));
memset(iv, 9, sizeof(iv));
fprintf(stderr, "Encrypt with AES128-GCM\n");
ret = wc_AesInit_Id(&aesEnc, NULL, 0, NULL, devId);
if (ret == 0) {
ret = wc_AesGcmSetKey(&aesEnc, key, AES_128_KEY_SIZE);
if (ret != 0)
fprintf(stderr, "Set Key failed: %d\n", ret);
}
if (ret == 0) {
ret = wc_AesGcmEncrypt(&aesEnc, enc, data, sizeof(data), iv, sizeof(iv),
authTag, sizeof(authTag), NULL, 0);
if (ret != 0)
fprintf(stderr, "Encrypt failed: %d\n", ret);
}
if (ret == 0) {
fprintf(stderr, "Decrypt with AES128-GCM\n");
ret = wc_AesInit_Id(&aesDec, NULL, 0, NULL, devId);
}
if (ret == 0) {
ret = wc_AesGcmSetKey(&aesDec, key, AES_128_KEY_SIZE);
if (ret != 0)
fprintf(stderr, "Set Key failed: %d\n", ret);
}
if (ret == 0) {
ret = wc_AesGcmDecrypt(&aesDec, dec, enc, sizeof(enc), iv, sizeof(iv),
authTag, sizeof(authTag), NULL, 0);
if (ret != 0)
fprintf(stderr, "Decrypt failed: %d\n", ret);
}
return ret;
}
#endif
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_aesgcm <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) {
#if !defined(NO_AES) && defined(HAVE_AESGCM)
ret = aesgcm_enc_dec(devId);
if (ret != 0)
ret = 1;
#endif
}
wc_Pkcs11Token_Final(&token);
}
wc_Pkcs11_Finalize(&dev);
}
wolfCrypt_Cleanup();
return ret;
}