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/* genkey - pkcs11 rsa key generator
*
* create RSASHA1 key in the keystore of an SCA6000
* The calculation of key tag is left to the script
* that converts the key into a DNSKEY RR and inserts
* it into a zone file.
*
* usage:
* genkey [-P] [-s slot] -b keysize -l label [-p pin]
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#ifndef OPENCRYPTOKI
#include <security/cryptoki.h>
#include <security/pkcs11.h>
#else
#include <opencryptoki/pkcs11.h>
#endif
/* Define static key template values */
static CK_BBOOL truevalue = TRUE;
static CK_BBOOL falsevalue = FALSE;
int
main(int argc, char *argv[])
{
CK_RV rv;
CK_SLOT_ID slot = 0;
CK_MECHANISM genmech;
CK_SESSION_HANDLE hSession;
CK_UTF8CHAR *pin = NULL;
CK_ULONG modulusbits = 0;
CK_CHAR *label = NULL;
CK_OBJECT_HANDLE privatekey, publickey;
CK_BYTE public_exponent[3];
int error = 0;
int i = 0;
int c, errflg = 0;
int hide = 1;
CK_ULONG ulObjectCount;
/* Set search template */
CK_ATTRIBUTE search_template[] = {
{CKA_LABEL, NULL_PTR, 0}
};
CK_ATTRIBUTE publickey_template[] = {
{CKA_LABEL, NULL_PTR, 0},
{CKA_VERIFY, &truevalue, sizeof (truevalue)},
{CKA_TOKEN, &truevalue, sizeof (truevalue)},
{CKA_MODULUS_BITS, &modulusbits, sizeof (modulusbits)},
{CKA_PUBLIC_EXPONENT, &public_exponent, sizeof (public_exponent)}
};
CK_ATTRIBUTE privatekey_template[] = {
{CKA_LABEL, NULL_PTR, 0},
{CKA_SIGN, &truevalue, sizeof (truevalue)},
{CKA_TOKEN, &truevalue, sizeof (truevalue)},
{CKA_PRIVATE, &truevalue, sizeof (truevalue)},
{CKA_SENSITIVE, &truevalue, sizeof (truevalue)},
{CKA_EXTRACTABLE, &falsevalue, sizeof (falsevalue)}
};
extern char *optarg;
extern int optopt;
while ((c = getopt(argc, argv, ":Ps:b:i:l:p:")) != -1) {
switch (c) {
case 'P':
hide = 0;
break;
case 's':
slot = atoi(optarg);
break;
case 'b':
modulusbits = atoi(optarg);
break;
case 'l':
label = (CK_CHAR *)optarg;
break;
case 'p':
pin = (CK_UTF8CHAR *)optarg;
break;
case ':':
fprintf(stderr, "Option -%c requires an operand\n", optopt);
errflg++;
break;
case '?':
default:
fprintf(stderr, "Unrecognised option: -%c\n", optopt);
errflg++;
}
}
if ((errflg) || (!modulusbits) || (!label)) {
fprintf(stderr,
"usage: genkey [-P] [-s slot] -b keysize -l label [-p pin]\n");
exit(2);
}
search_template[0].pValue = label;
search_template[0].ulValueLen = strlen((char *)label);
publickey_template[0].pValue = label;
publickey_template[0].ulValueLen = strlen((char *)label);
privatekey_template[0].pValue = label;
privatekey_template[0].ulValueLen = strlen((char *)label);
/* Set public exponent to 65537 */
public_exponent[0] = 0x01;
public_exponent[1] = 0x00;
public_exponent[2] = 0x01;
/* Set up mechanism for generating key pair */
genmech.mechanism = CKM_RSA_PKCS_KEY_PAIR_GEN;
genmech.pParameter = NULL_PTR;
genmech.ulParameterLen = 0;
/* Initialize the CRYPTOKI library */
rv = C_Initialize(NULL_PTR);
if (rv != CKR_OK) {
fprintf(stderr, "C_Initialize: Error = 0x%.8X\n", rv);
exit(1);
}
/* Open a session on the slot found */
rv = C_OpenSession(slot, CKF_RW_SESSION+CKF_SERIAL_SESSION,
NULL_PTR, NULL_PTR, &hSession);
if (rv != CKR_OK) {
fprintf(stderr, "C_OpenSession: Error = 0x%.8X\n", rv);
error = 1;
goto exit_program;
}
/* Login to the Token (Keystore) */
if (!pin)
#ifndef OPENCRYPTOKI
pin = (CK_UTF8CHAR *)getpassphrase("Enter Pin: ");
#else
pin = (CK_UTF8CHAR *)getpass("Enter Pin: ");
#endif
rv = C_Login(hSession, CKU_USER, pin, strlen((char *)pin));
memset(pin, 0, strlen((char *)pin));
if (rv != CKR_OK) {
fprintf(stderr, "C_Login: Error = 0x%.8X\n", rv);
error = 1;
goto exit_session;
}
/* check if a key with the same id already exists */
rv = C_FindObjectsInit(hSession, search_template, 1);
if (rv != CKR_OK) {
fprintf(stderr, "C_FindObjectsInit: Error = 0x%.8X\n", rv);
error = 1;
goto exit_session;
}
rv = C_FindObjects(hSession, &privatekey, 1, &ulObjectCount);
if (rv != CKR_OK) {
fprintf(stderr, "C_FindObjects: Error = 0x%.8X\n", rv);
error = 1;
goto exit_search;
}
if (ulObjectCount != 0) {
fprintf(stderr, "Key already exists.\n");
error = 1;
goto exit_search;
}
/* Set attributes if the key is not to be hidden */
if (!hide) {
privatekey_template[4].pValue = &falsevalue;
privatekey_template[5].pValue = &truevalue;
}
/* Generate Key pair for signing/verifying */
rv = C_GenerateKeyPair(hSession, &genmech, publickey_template,
(sizeof (publickey_template) /
sizeof (CK_ATTRIBUTE)),
privatekey_template,
(sizeof (privatekey_template) /
sizeof (CK_ATTRIBUTE)),
&publickey, &privatekey);
if (rv != CKR_OK) {
fprintf(stderr, "C_GenerateKeyPair: Error = 0x%.8X\n", rv);
error = 1;
}
exit_search:
rv = C_FindObjectsFinal(hSession);
if (rv != CKR_OK) {
fprintf(stderr, "C_FindObjectsFinal: Error = 0x%.8X\n", rv);
error = 1;
}
exit_session:
(void) C_CloseSession(hSession);
exit_program:
(void) C_Finalize(NULL_PTR);
exit(error);
}
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