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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 3 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 <http://www.gnu.org/licenses/>
*/
#include <gnutls_int.h>
#include <gnutls/pkcs11.h>
#include <stdio.h>
#include <string.h>
#include <gnutls_errors.h>
#include <gnutls_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 ck_function_list *module;
ck_session_handle_t pks;
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 obj;
ck_key_type_t keytype = CKK_GENERIC_SECRET;
ck_bool_t tval = 1;
int a_val;
uint8_t id[16];
ret = pkcs11_url_to_info (token_url, &info);
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 (&module, &pks, info,
SESSION_WRITE | pkcs11_obj_flags_to_int (flags));
p11_kit_uri_free (info);
if (ret < 0)
{
gnutls_assert ();
return ret;
}
/* FIXME: 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_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 (module, pks, a, a_val, &obj);
if (rv != CKR_OK)
{
gnutls_assert ();
_gnutls_debug_log ("pkcs11: %s\n", pkcs11_strerror (rv));
ret = pkcs11_rv_to_err (rv);
goto cleanup;
}
/* generated!
*/
ret = 0;
cleanup:
pkcs11_close_session (module, pks);
return ret;
}
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