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657a5fbc0d
rename xrealloc() to xreallocarray() since it follows that form. ok djm
673 lines
18 KiB
C
673 lines
18 KiB
C
/* $OpenBSD: ssh-pkcs11.c,v 1.18 2015/04/24 01:36:01 deraadt Exp $ */
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/*
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* Copyright (c) 2010 Markus Friedl. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "includes.h"
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#ifdef ENABLE_PKCS11
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#include <sys/types.h>
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <dlfcn.h>
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#include "openbsd-compat/sys-queue.h"
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#include <openssl/x509.h>
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#define CRYPTOKI_COMPAT
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#include "pkcs11.h"
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#include "log.h"
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#include "misc.h"
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#include "sshkey.h"
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#include "ssh-pkcs11.h"
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#include "xmalloc.h"
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struct pkcs11_slotinfo {
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CK_TOKEN_INFO token;
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CK_SESSION_HANDLE session;
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int logged_in;
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};
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struct pkcs11_provider {
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char *name;
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void *handle;
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CK_FUNCTION_LIST *function_list;
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CK_INFO info;
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CK_ULONG nslots;
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CK_SLOT_ID *slotlist;
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struct pkcs11_slotinfo *slotinfo;
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int valid;
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int refcount;
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TAILQ_ENTRY(pkcs11_provider) next;
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};
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TAILQ_HEAD(, pkcs11_provider) pkcs11_providers;
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struct pkcs11_key {
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struct pkcs11_provider *provider;
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CK_ULONG slotidx;
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int (*orig_finish)(RSA *rsa);
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RSA_METHOD rsa_method;
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char *keyid;
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int keyid_len;
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};
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int pkcs11_interactive = 0;
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int
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pkcs11_init(int interactive)
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{
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pkcs11_interactive = interactive;
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TAILQ_INIT(&pkcs11_providers);
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return (0);
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}
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/*
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* finalize a provider shared libarary, it's no longer usable.
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* however, there might still be keys referencing this provider,
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* so the actuall freeing of memory is handled by pkcs11_provider_unref().
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* this is called when a provider gets unregistered.
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*/
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static void
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pkcs11_provider_finalize(struct pkcs11_provider *p)
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{
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CK_RV rv;
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CK_ULONG i;
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debug("pkcs11_provider_finalize: %p refcount %d valid %d",
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p, p->refcount, p->valid);
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if (!p->valid)
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return;
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for (i = 0; i < p->nslots; i++) {
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if (p->slotinfo[i].session &&
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(rv = p->function_list->C_CloseSession(
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p->slotinfo[i].session)) != CKR_OK)
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error("C_CloseSession failed: %lu", rv);
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}
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if ((rv = p->function_list->C_Finalize(NULL)) != CKR_OK)
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error("C_Finalize failed: %lu", rv);
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p->valid = 0;
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p->function_list = NULL;
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dlclose(p->handle);
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}
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/*
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* remove a reference to the provider.
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* called when a key gets destroyed or when the provider is unregistered.
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*/
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static void
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pkcs11_provider_unref(struct pkcs11_provider *p)
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{
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debug("pkcs11_provider_unref: %p refcount %d", p, p->refcount);
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if (--p->refcount <= 0) {
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if (p->valid)
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error("pkcs11_provider_unref: %p still valid", p);
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free(p->slotlist);
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free(p->slotinfo);
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free(p);
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}
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}
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/* unregister all providers, keys might still point to the providers */
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void
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pkcs11_terminate(void)
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{
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struct pkcs11_provider *p;
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while ((p = TAILQ_FIRST(&pkcs11_providers)) != NULL) {
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TAILQ_REMOVE(&pkcs11_providers, p, next);
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pkcs11_provider_finalize(p);
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pkcs11_provider_unref(p);
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}
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}
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/* lookup provider by name */
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static struct pkcs11_provider *
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pkcs11_provider_lookup(char *provider_id)
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{
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struct pkcs11_provider *p;
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TAILQ_FOREACH(p, &pkcs11_providers, next) {
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debug("check %p %s", p, p->name);
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if (!strcmp(provider_id, p->name))
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return (p);
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}
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return (NULL);
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}
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/* unregister provider by name */
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int
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pkcs11_del_provider(char *provider_id)
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{
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struct pkcs11_provider *p;
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if ((p = pkcs11_provider_lookup(provider_id)) != NULL) {
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TAILQ_REMOVE(&pkcs11_providers, p, next);
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pkcs11_provider_finalize(p);
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pkcs11_provider_unref(p);
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return (0);
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}
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return (-1);
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}
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/* openssl callback for freeing an RSA key */
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static int
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pkcs11_rsa_finish(RSA *rsa)
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{
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struct pkcs11_key *k11;
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int rv = -1;
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if ((k11 = RSA_get_app_data(rsa)) != NULL) {
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if (k11->orig_finish)
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rv = k11->orig_finish(rsa);
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if (k11->provider)
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pkcs11_provider_unref(k11->provider);
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free(k11->keyid);
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free(k11);
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}
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return (rv);
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}
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/* find a single 'obj' for given attributes */
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static int
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pkcs11_find(struct pkcs11_provider *p, CK_ULONG slotidx, CK_ATTRIBUTE *attr,
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CK_ULONG nattr, CK_OBJECT_HANDLE *obj)
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{
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CK_FUNCTION_LIST *f;
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CK_SESSION_HANDLE session;
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CK_ULONG nfound = 0;
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CK_RV rv;
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int ret = -1;
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f = p->function_list;
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session = p->slotinfo[slotidx].session;
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if ((rv = f->C_FindObjectsInit(session, attr, nattr)) != CKR_OK) {
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error("C_FindObjectsInit failed (nattr %lu): %lu", nattr, rv);
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return (-1);
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}
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if ((rv = f->C_FindObjects(session, obj, 1, &nfound)) != CKR_OK ||
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nfound != 1) {
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debug("C_FindObjects failed (nfound %lu nattr %lu): %lu",
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nfound, nattr, rv);
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} else
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ret = 0;
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if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK)
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error("C_FindObjectsFinal failed: %lu", rv);
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return (ret);
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}
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/* openssl callback doing the actual signing operation */
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static int
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pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
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int padding)
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{
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struct pkcs11_key *k11;
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struct pkcs11_slotinfo *si;
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CK_FUNCTION_LIST *f;
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CK_OBJECT_HANDLE obj;
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CK_ULONG tlen = 0;
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CK_RV rv;
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CK_OBJECT_CLASS private_key_class = CKO_PRIVATE_KEY;
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CK_BBOOL true_val = CK_TRUE;
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CK_MECHANISM mech = {
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CKM_RSA_PKCS, NULL_PTR, 0
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};
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CK_ATTRIBUTE key_filter[] = {
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{CKA_CLASS, NULL, sizeof(private_key_class) },
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{CKA_ID, NULL, 0},
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{CKA_SIGN, NULL, sizeof(true_val) }
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};
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char *pin, prompt[1024];
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int rval = -1;
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key_filter[0].pValue = &private_key_class;
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key_filter[2].pValue = &true_val;
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if ((k11 = RSA_get_app_data(rsa)) == NULL) {
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error("RSA_get_app_data failed for rsa %p", rsa);
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return (-1);
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}
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if (!k11->provider || !k11->provider->valid) {
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error("no pkcs11 (valid) provider for rsa %p", rsa);
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return (-1);
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}
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f = k11->provider->function_list;
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si = &k11->provider->slotinfo[k11->slotidx];
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if ((si->token.flags & CKF_LOGIN_REQUIRED) && !si->logged_in) {
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if (!pkcs11_interactive) {
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error("need pin");
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return (-1);
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}
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snprintf(prompt, sizeof(prompt), "Enter PIN for '%s': ",
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si->token.label);
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pin = read_passphrase(prompt, RP_ALLOW_EOF);
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if (pin == NULL)
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return (-1); /* bail out */
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rv = f->C_Login(si->session, CKU_USER,
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(u_char *)pin, strlen(pin));
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if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) {
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free(pin);
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error("C_Login failed: %lu", rv);
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return (-1);
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}
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free(pin);
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si->logged_in = 1;
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}
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key_filter[1].pValue = k11->keyid;
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key_filter[1].ulValueLen = k11->keyid_len;
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/* try to find object w/CKA_SIGN first, retry w/o */
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if (pkcs11_find(k11->provider, k11->slotidx, key_filter, 3, &obj) < 0 &&
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pkcs11_find(k11->provider, k11->slotidx, key_filter, 2, &obj) < 0) {
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error("cannot find private key");
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} else if ((rv = f->C_SignInit(si->session, &mech, obj)) != CKR_OK) {
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error("C_SignInit failed: %lu", rv);
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} else {
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/* XXX handle CKR_BUFFER_TOO_SMALL */
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tlen = RSA_size(rsa);
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rv = f->C_Sign(si->session, (CK_BYTE *)from, flen, to, &tlen);
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if (rv == CKR_OK)
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rval = tlen;
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else
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error("C_Sign failed: %lu", rv);
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}
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return (rval);
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}
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static int
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pkcs11_rsa_private_decrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
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int padding)
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{
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return (-1);
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}
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/* redirect private key operations for rsa key to pkcs11 token */
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static int
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pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
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CK_ATTRIBUTE *keyid_attrib, RSA *rsa)
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{
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struct pkcs11_key *k11;
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const RSA_METHOD *def = RSA_get_default_method();
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k11 = xcalloc(1, sizeof(*k11));
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k11->provider = provider;
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provider->refcount++; /* provider referenced by RSA key */
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k11->slotidx = slotidx;
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/* identify key object on smartcard */
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k11->keyid_len = keyid_attrib->ulValueLen;
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k11->keyid = xmalloc(k11->keyid_len);
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memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
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k11->orig_finish = def->finish;
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memcpy(&k11->rsa_method, def, sizeof(k11->rsa_method));
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k11->rsa_method.name = "pkcs11";
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k11->rsa_method.rsa_priv_enc = pkcs11_rsa_private_encrypt;
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k11->rsa_method.rsa_priv_dec = pkcs11_rsa_private_decrypt;
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k11->rsa_method.finish = pkcs11_rsa_finish;
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RSA_set_method(rsa, &k11->rsa_method);
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RSA_set_app_data(rsa, k11);
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return (0);
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}
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/* remove trailing spaces */
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static void
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rmspace(u_char *buf, size_t len)
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{
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size_t i;
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if (!len)
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return;
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for (i = len - 1; i > 0; i--)
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if (i == len - 1 || buf[i] == ' ')
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buf[i] = '\0';
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else
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break;
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}
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/*
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* open a pkcs11 session and login if required.
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* if pin == NULL we delay login until key use
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*/
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static int
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pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin)
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{
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CK_RV rv;
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CK_FUNCTION_LIST *f;
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CK_SESSION_HANDLE session;
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int login_required;
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f = p->function_list;
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login_required = p->slotinfo[slotidx].token.flags & CKF_LOGIN_REQUIRED;
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if (pin && login_required && !strlen(pin)) {
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error("pin required");
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return (-1);
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}
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if ((rv = f->C_OpenSession(p->slotlist[slotidx], CKF_RW_SESSION|
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CKF_SERIAL_SESSION, NULL, NULL, &session))
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!= CKR_OK) {
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error("C_OpenSession failed: %lu", rv);
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return (-1);
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}
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if (login_required && pin) {
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rv = f->C_Login(session, CKU_USER,
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(u_char *)pin, strlen(pin));
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if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN) {
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error("C_Login failed: %lu", rv);
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if ((rv = f->C_CloseSession(session)) != CKR_OK)
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error("C_CloseSession failed: %lu", rv);
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return (-1);
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}
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p->slotinfo[slotidx].logged_in = 1;
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}
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p->slotinfo[slotidx].session = session;
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return (0);
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}
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/*
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* lookup public keys for token in slot identified by slotidx,
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* add 'wrapped' public keys to the 'keysp' array and increment nkeys.
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* keysp points to an (possibly empty) array with *nkeys keys.
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*/
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static int pkcs11_fetch_keys_filter(struct pkcs11_provider *, CK_ULONG,
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CK_ATTRIBUTE [], CK_ATTRIBUTE [3], struct sshkey ***, int *)
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__attribute__((__bounded__(__minbytes__,4, 3 * sizeof(CK_ATTRIBUTE))));
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static int
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pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx,
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struct sshkey ***keysp, int *nkeys)
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{
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CK_OBJECT_CLASS pubkey_class = CKO_PUBLIC_KEY;
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CK_OBJECT_CLASS cert_class = CKO_CERTIFICATE;
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CK_ATTRIBUTE pubkey_filter[] = {
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{ CKA_CLASS, NULL, sizeof(pubkey_class) }
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};
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CK_ATTRIBUTE cert_filter[] = {
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{ CKA_CLASS, NULL, sizeof(cert_class) }
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};
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CK_ATTRIBUTE pubkey_attribs[] = {
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{ CKA_ID, NULL, 0 },
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{ CKA_MODULUS, NULL, 0 },
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{ CKA_PUBLIC_EXPONENT, NULL, 0 }
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};
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CK_ATTRIBUTE cert_attribs[] = {
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{ CKA_ID, NULL, 0 },
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{ CKA_SUBJECT, NULL, 0 },
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{ CKA_VALUE, NULL, 0 }
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};
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pubkey_filter[0].pValue = &pubkey_class;
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cert_filter[0].pValue = &cert_class;
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if (pkcs11_fetch_keys_filter(p, slotidx, pubkey_filter, pubkey_attribs,
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keysp, nkeys) < 0 ||
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pkcs11_fetch_keys_filter(p, slotidx, cert_filter, cert_attribs,
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keysp, nkeys) < 0)
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return (-1);
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return (0);
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}
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static int
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pkcs11_key_included(struct sshkey ***keysp, int *nkeys, struct sshkey *key)
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{
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int i;
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for (i = 0; i < *nkeys; i++)
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if (sshkey_equal(key, (*keysp)[i]))
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return (1);
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return (0);
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}
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static int
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pkcs11_fetch_keys_filter(struct pkcs11_provider *p, CK_ULONG slotidx,
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CK_ATTRIBUTE filter[], CK_ATTRIBUTE attribs[3],
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struct sshkey ***keysp, int *nkeys)
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{
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struct sshkey *key;
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RSA *rsa;
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X509 *x509;
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EVP_PKEY *evp;
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int i;
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const u_char *cp;
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CK_RV rv;
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CK_OBJECT_HANDLE obj;
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CK_ULONG nfound;
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CK_SESSION_HANDLE session;
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CK_FUNCTION_LIST *f;
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f = p->function_list;
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session = p->slotinfo[slotidx].session;
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/* setup a filter the looks for public keys */
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if ((rv = f->C_FindObjectsInit(session, filter, 1)) != CKR_OK) {
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error("C_FindObjectsInit failed: %lu", rv);
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return (-1);
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}
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while (1) {
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/* XXX 3 attributes in attribs[] */
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for (i = 0; i < 3; i++) {
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attribs[i].pValue = NULL;
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attribs[i].ulValueLen = 0;
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}
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if ((rv = f->C_FindObjects(session, &obj, 1, &nfound)) != CKR_OK
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|| nfound == 0)
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break;
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/* found a key, so figure out size of the attributes */
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if ((rv = f->C_GetAttributeValue(session, obj, attribs, 3))
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!= CKR_OK) {
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error("C_GetAttributeValue failed: %lu", rv);
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continue;
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}
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/* check that none of the attributes are zero length */
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if (attribs[0].ulValueLen == 0 ||
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attribs[1].ulValueLen == 0 ||
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attribs[2].ulValueLen == 0) {
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continue;
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}
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/* allocate buffers for attributes */
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for (i = 0; i < 3; i++)
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attribs[i].pValue = xmalloc(attribs[i].ulValueLen);
|
|
/*
|
|
* retrieve ID, modulus and public exponent of RSA key,
|
|
* or ID, subject and value for certificates.
|
|
*/
|
|
rsa = NULL;
|
|
if ((rv = f->C_GetAttributeValue(session, obj, attribs, 3))
|
|
!= CKR_OK) {
|
|
error("C_GetAttributeValue failed: %lu", rv);
|
|
} else if (attribs[1].type == CKA_MODULUS ) {
|
|
if ((rsa = RSA_new()) == NULL) {
|
|
error("RSA_new failed");
|
|
} else {
|
|
rsa->n = BN_bin2bn(attribs[1].pValue,
|
|
attribs[1].ulValueLen, NULL);
|
|
rsa->e = BN_bin2bn(attribs[2].pValue,
|
|
attribs[2].ulValueLen, NULL);
|
|
}
|
|
} else {
|
|
cp = attribs[2].pValue;
|
|
if ((x509 = X509_new()) == NULL) {
|
|
error("X509_new failed");
|
|
} else if (d2i_X509(&x509, &cp, attribs[2].ulValueLen)
|
|
== NULL) {
|
|
error("d2i_X509 failed");
|
|
} else if ((evp = X509_get_pubkey(x509)) == NULL ||
|
|
evp->type != EVP_PKEY_RSA ||
|
|
evp->pkey.rsa == NULL) {
|
|
debug("X509_get_pubkey failed or no rsa");
|
|
} else if ((rsa = RSAPublicKey_dup(evp->pkey.rsa))
|
|
== NULL) {
|
|
error("RSAPublicKey_dup");
|
|
}
|
|
if (x509)
|
|
X509_free(x509);
|
|
}
|
|
if (rsa && rsa->n && rsa->e &&
|
|
pkcs11_rsa_wrap(p, slotidx, &attribs[0], rsa) == 0) {
|
|
key = sshkey_new(KEY_UNSPEC);
|
|
key->rsa = rsa;
|
|
key->type = KEY_RSA;
|
|
key->flags |= SSHKEY_FLAG_EXT;
|
|
if (pkcs11_key_included(keysp, nkeys, key)) {
|
|
sshkey_free(key);
|
|
} else {
|
|
/* expand key array and add key */
|
|
*keysp = xreallocarray(*keysp, *nkeys + 1,
|
|
sizeof(struct sshkey *));
|
|
(*keysp)[*nkeys] = key;
|
|
*nkeys = *nkeys + 1;
|
|
debug("have %d keys", *nkeys);
|
|
}
|
|
} else if (rsa) {
|
|
RSA_free(rsa);
|
|
}
|
|
for (i = 0; i < 3; i++)
|
|
free(attribs[i].pValue);
|
|
}
|
|
if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK)
|
|
error("C_FindObjectsFinal failed: %lu", rv);
|
|
return (0);
|
|
}
|
|
|
|
/* register a new provider, fails if provider already exists */
|
|
int
|
|
pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp)
|
|
{
|
|
int nkeys, need_finalize = 0;
|
|
struct pkcs11_provider *p = NULL;
|
|
void *handle = NULL;
|
|
CK_RV (*getfunctionlist)(CK_FUNCTION_LIST **);
|
|
CK_RV rv;
|
|
CK_FUNCTION_LIST *f = NULL;
|
|
CK_TOKEN_INFO *token;
|
|
CK_ULONG i;
|
|
|
|
*keyp = NULL;
|
|
if (pkcs11_provider_lookup(provider_id) != NULL) {
|
|
error("provider already registered: %s", provider_id);
|
|
goto fail;
|
|
}
|
|
/* open shared pkcs11-libarary */
|
|
if ((handle = dlopen(provider_id, RTLD_NOW)) == NULL) {
|
|
error("dlopen %s failed: %s", provider_id, dlerror());
|
|
goto fail;
|
|
}
|
|
if ((getfunctionlist = dlsym(handle, "C_GetFunctionList")) == NULL) {
|
|
error("dlsym(C_GetFunctionList) failed: %s", dlerror());
|
|
goto fail;
|
|
}
|
|
p = xcalloc(1, sizeof(*p));
|
|
p->name = xstrdup(provider_id);
|
|
p->handle = handle;
|
|
/* setup the pkcs11 callbacks */
|
|
if ((rv = (*getfunctionlist)(&f)) != CKR_OK) {
|
|
error("C_GetFunctionList failed: %lu", rv);
|
|
goto fail;
|
|
}
|
|
p->function_list = f;
|
|
if ((rv = f->C_Initialize(NULL)) != CKR_OK) {
|
|
error("C_Initialize failed: %lu", rv);
|
|
goto fail;
|
|
}
|
|
need_finalize = 1;
|
|
if ((rv = f->C_GetInfo(&p->info)) != CKR_OK) {
|
|
error("C_GetInfo failed: %lu", rv);
|
|
goto fail;
|
|
}
|
|
rmspace(p->info.manufacturerID, sizeof(p->info.manufacturerID));
|
|
rmspace(p->info.libraryDescription, sizeof(p->info.libraryDescription));
|
|
debug("manufacturerID <%s> cryptokiVersion %d.%d"
|
|
" libraryDescription <%s> libraryVersion %d.%d",
|
|
p->info.manufacturerID,
|
|
p->info.cryptokiVersion.major,
|
|
p->info.cryptokiVersion.minor,
|
|
p->info.libraryDescription,
|
|
p->info.libraryVersion.major,
|
|
p->info.libraryVersion.minor);
|
|
if ((rv = f->C_GetSlotList(CK_TRUE, NULL, &p->nslots)) != CKR_OK) {
|
|
error("C_GetSlotList failed: %lu", rv);
|
|
goto fail;
|
|
}
|
|
if (p->nslots == 0) {
|
|
error("no slots");
|
|
goto fail;
|
|
}
|
|
p->slotlist = xcalloc(p->nslots, sizeof(CK_SLOT_ID));
|
|
if ((rv = f->C_GetSlotList(CK_TRUE, p->slotlist, &p->nslots))
|
|
!= CKR_OK) {
|
|
error("C_GetSlotList failed: %lu", rv);
|
|
goto fail;
|
|
}
|
|
p->slotinfo = xcalloc(p->nslots, sizeof(struct pkcs11_slotinfo));
|
|
p->valid = 1;
|
|
nkeys = 0;
|
|
for (i = 0; i < p->nslots; i++) {
|
|
token = &p->slotinfo[i].token;
|
|
if ((rv = f->C_GetTokenInfo(p->slotlist[i], token))
|
|
!= CKR_OK) {
|
|
error("C_GetTokenInfo failed: %lu", rv);
|
|
continue;
|
|
}
|
|
rmspace(token->label, sizeof(token->label));
|
|
rmspace(token->manufacturerID, sizeof(token->manufacturerID));
|
|
rmspace(token->model, sizeof(token->model));
|
|
rmspace(token->serialNumber, sizeof(token->serialNumber));
|
|
debug("label <%s> manufacturerID <%s> model <%s> serial <%s>"
|
|
" flags 0x%lx",
|
|
token->label, token->manufacturerID, token->model,
|
|
token->serialNumber, token->flags);
|
|
/* open session, login with pin and retrieve public keys */
|
|
if (pkcs11_open_session(p, i, pin) == 0)
|
|
pkcs11_fetch_keys(p, i, keyp, &nkeys);
|
|
}
|
|
if (nkeys > 0) {
|
|
TAILQ_INSERT_TAIL(&pkcs11_providers, p, next);
|
|
p->refcount++; /* add to provider list */
|
|
return (nkeys);
|
|
}
|
|
error("no keys");
|
|
/* don't add the provider, since it does not have any keys */
|
|
fail:
|
|
if (need_finalize && (rv = f->C_Finalize(NULL)) != CKR_OK)
|
|
error("C_Finalize failed: %lu", rv);
|
|
if (p) {
|
|
free(p->slotlist);
|
|
free(p->slotinfo);
|
|
free(p);
|
|
}
|
|
if (handle)
|
|
dlclose(handle);
|
|
return (-1);
|
|
}
|
|
|
|
#else
|
|
|
|
int
|
|
pkcs11_init(int interactive)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
pkcs11_terminate(void)
|
|
{
|
|
return;
|
|
}
|
|
|
|
#endif /* ENABLE_PKCS11 */
|