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/*
* GnuTLS PKCS#11 support
* Copyright (C) 2010-2012 Free Software Foundation, Inc.
*
* Author: Nikos Mavrogiannopoulos, Stef Walter
*
* The GnuTLS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*/
#include "gnutls_int.h"
#include <gnutls/pkcs11.h>
#include <stdio.h>
#include <string.h>
#include "errors.h"
#include <datum.h>
#include <pkcs11_int.h>
#include <random.h>
/**
* gnutls_pkcs11_copy_secret_key:
* @token_url: A PKCS #11 URL specifying a token
* @key: The raw key
* @label: A name to be used for the stored data
* @key_usage: One of GNUTLS_KEY_*
* @flags: One of GNUTLS_PKCS11_OBJ_FLAG_*
*
* This function will copy a raw secret (symmetric) key into a PKCS #11
* token specified by a URL. The key can be marked as sensitive or not.
*
* Returns: On success, %GNUTLS_E_SUCCESS (0) is returned, otherwise a
* negative error value.
*
* Since: 2.12.0
**/
int gnutls_pkcs11_copy_secret_key(const char *token_url, gnutls_datum_t *key,
const char *label, unsigned int key_usage,
unsigned int flags
/* GNUTLS_PKCS11_OBJ_FLAG_* */)
{
int ret;
struct p11_kit_uri *info = NULL;
ck_rv_t rv;
struct ck_attribute a[12];
ck_object_class_t class = CKO_SECRET_KEY;
ck_object_handle_t ctx;
ck_key_type_t keytype = CKK_GENERIC_SECRET;
ck_bool_t tval = 1;
int a_val;
uint8_t id[16];
struct pkcs11_session_info sinfo;
PKCS11_CHECK_INIT;
memset(&sinfo, 0, sizeof(sinfo));
ret = pkcs11_url_to_info(token_url, &info, 0);
if (ret < 0) {
gnutls_assert();
return ret;
}
/* generate a unique ID */
ret = gnutls_rnd(GNUTLS_RND_NONCE, id, sizeof(id));
if (ret < 0) {
gnutls_assert();
return ret;
}
ret = pkcs11_open_session(&sinfo, NULL, info,
SESSION_WRITE |
pkcs11_obj_flags_to_int(flags));
p11_kit_uri_free(info);
if (ret < 0) {
gnutls_assert();
return ret;
}
/* We do not copy key usage flags.
*/
a[0].type = CKA_CLASS;
a[0].value = &class;
a[0].value_len = sizeof(class);
a[1].type = CKA_VALUE;
a[1].value = key->data;
a[1].value_len = key->size;
a[2].type = CKA_TOKEN;
a[2].value = &tval;
a[2].value_len = sizeof(tval);
a[3].type = CKA_PRIVATE;
a[3].value = &tval;
a[3].value_len = sizeof(tval);
a[4].type = CKA_KEY_TYPE;
a[4].value = &keytype;
a[4].value_len = sizeof(keytype);
a[5].type = CKA_ID;
a[5].value = id;
a[5].value_len = sizeof(id);
a_val = 6;
if (label) {
a[a_val].type = CKA_LABEL;
a[a_val].value = (void *)label;
a[a_val].value_len = strlen(label);
a_val++;
}
if (!(flags & GNUTLS_PKCS11_OBJ_FLAG_MARK_NOT_SENSITIVE))
tval = 1;
else
tval = 0;
a[a_val].type = CKA_SENSITIVE;
a[a_val].value = &tval;
a[a_val].value_len = sizeof(tval);
a_val++;
rv = pkcs11_create_object(sinfo.module, sinfo.pks, a, a_val, &ctx);
if (rv != CKR_OK) {
gnutls_assert();
_gnutls_debug_log("p11: %s\n", pkcs11_strerror(rv));
ret = pkcs11_rv_to_err(rv);
goto cleanup;
}
/* generated!
*/
ret = 0;
cleanup:
pkcs11_close_session(&sinfo);
return ret;
}
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