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12#include <crypto/algapi.h>
13#include <crypto/akcipher.h>
14#include <crypto/internal/akcipher.h>
15#include <linux/err.h>
16#include <linux/init.h>
17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/random.h>
20
21
22
23
24static const u8 rsa_digest_info_md5[] = {
25 0x30, 0x20, 0x30, 0x0c, 0x06, 0x08,
26 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x02, 0x05,
27 0x05, 0x00, 0x04, 0x10
28};
29
30static const u8 rsa_digest_info_sha1[] = {
31 0x30, 0x21, 0x30, 0x09, 0x06, 0x05,
32 0x2b, 0x0e, 0x03, 0x02, 0x1a,
33 0x05, 0x00, 0x04, 0x14
34};
35
36static const u8 rsa_digest_info_rmd160[] = {
37 0x30, 0x21, 0x30, 0x09, 0x06, 0x05,
38 0x2b, 0x24, 0x03, 0x02, 0x01,
39 0x05, 0x00, 0x04, 0x14
40};
41
42static const u8 rsa_digest_info_sha224[] = {
43 0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09,
44 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04,
45 0x05, 0x00, 0x04, 0x1c
46};
47
48static const u8 rsa_digest_info_sha256[] = {
49 0x30, 0x31, 0x30, 0x0d, 0x06, 0x09,
50 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01,
51 0x05, 0x00, 0x04, 0x20
52};
53
54static const u8 rsa_digest_info_sha384[] = {
55 0x30, 0x41, 0x30, 0x0d, 0x06, 0x09,
56 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02,
57 0x05, 0x00, 0x04, 0x30
58};
59
60static const u8 rsa_digest_info_sha512[] = {
61 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09,
62 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03,
63 0x05, 0x00, 0x04, 0x40
64};
65
66static const struct rsa_asn1_template {
67 const char *name;
68 const u8 *data;
69 size_t size;
70} rsa_asn1_templates[] = {
71#define _(X) { #X, rsa_digest_info_##X, sizeof(rsa_digest_info_##X) }
72 _(md5),
73 _(sha1),
74 _(rmd160),
75 _(sha256),
76 _(sha384),
77 _(sha512),
78 _(sha224),
79 { NULL }
80#undef _
81};
82
83static const struct rsa_asn1_template *rsa_lookup_asn1(const char *name)
84{
85 const struct rsa_asn1_template *p;
86
87 for (p = rsa_asn1_templates; p->name; p++)
88 if (strcmp(name, p->name) == 0)
89 return p;
90 return NULL;
91}
92
93struct pkcs1pad_ctx {
94 struct crypto_akcipher *child;
95 unsigned int key_size;
96};
97
98struct pkcs1pad_inst_ctx {
99 struct crypto_akcipher_spawn spawn;
100 const struct rsa_asn1_template *digest_info;
101};
102
103struct pkcs1pad_request {
104 struct scatterlist in_sg[2], out_sg[1];
105 uint8_t *in_buf, *out_buf;
106 struct akcipher_request child_req;
107};
108
109static int pkcs1pad_set_pub_key(struct crypto_akcipher *tfm, const void *key,
110 unsigned int keylen)
111{
112 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
113 int err;
114
115 ctx->key_size = 0;
116
117 err = crypto_akcipher_set_pub_key(ctx->child, key, keylen);
118 if (err)
119 return err;
120
121
122 err = crypto_akcipher_maxsize(ctx->child);
123 if (err > PAGE_SIZE)
124 return -ENOTSUPP;
125
126 ctx->key_size = err;
127 return 0;
128}
129
130static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
131 unsigned int keylen)
132{
133 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
134 int err;
135
136 ctx->key_size = 0;
137
138 err = crypto_akcipher_set_priv_key(ctx->child, key, keylen);
139 if (err)
140 return err;
141
142
143 err = crypto_akcipher_maxsize(ctx->child);
144 if (err > PAGE_SIZE)
145 return -ENOTSUPP;
146
147 ctx->key_size = err;
148 return 0;
149}
150
151static unsigned int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
152{
153 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
154
155
156
157
158
159
160
161 return ctx->key_size;
162}
163
164static void pkcs1pad_sg_set_buf(struct scatterlist *sg, void *buf, size_t len,
165 struct scatterlist *next)
166{
167 int nsegs = next ? 2 : 1;
168
169 sg_init_table(sg, nsegs);
170 sg_set_buf(sg, buf, len);
171
172 if (next)
173 sg_chain(sg, nsegs, next);
174}
175
176static int pkcs1pad_encrypt_sign_complete(struct akcipher_request *req, int err)
177{
178 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
179 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
180 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
181 unsigned int pad_len;
182 unsigned int len;
183 u8 *out_buf;
184
185 if (err)
186 goto out;
187
188 len = req_ctx->child_req.dst_len;
189 pad_len = ctx->key_size - len;
190
191
192 if (likely(!pad_len))
193 goto out;
194
195 out_buf = kzalloc(ctx->key_size, GFP_ATOMIC);
196 err = -ENOMEM;
197 if (!out_buf)
198 goto out;
199
200 sg_copy_to_buffer(req->dst, sg_nents_for_len(req->dst, len),
201 out_buf + pad_len, len);
202 sg_copy_from_buffer(req->dst,
203 sg_nents_for_len(req->dst, ctx->key_size),
204 out_buf, ctx->key_size);
205 kzfree(out_buf);
206
207out:
208 req->dst_len = ctx->key_size;
209
210 kfree(req_ctx->in_buf);
211
212 return err;
213}
214
215static void pkcs1pad_encrypt_sign_complete_cb(
216 struct crypto_async_request *child_async_req, int err)
217{
218 struct akcipher_request *req = child_async_req->data;
219 struct crypto_async_request async_req;
220
221 if (err == -EINPROGRESS)
222 return;
223
224 async_req.data = req->base.data;
225 async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req));
226 async_req.flags = child_async_req->flags;
227 req->base.complete(&async_req,
228 pkcs1pad_encrypt_sign_complete(req, err));
229}
230
231static int pkcs1pad_encrypt(struct akcipher_request *req)
232{
233 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
234 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
235 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
236 int err;
237 unsigned int i, ps_end;
238
239 if (!ctx->key_size)
240 return -EINVAL;
241
242 if (req->src_len > ctx->key_size - 11)
243 return -EOVERFLOW;
244
245 if (req->dst_len < ctx->key_size) {
246 req->dst_len = ctx->key_size;
247 return -EOVERFLOW;
248 }
249
250 req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
251 GFP_KERNEL);
252 if (!req_ctx->in_buf)
253 return -ENOMEM;
254
255 ps_end = ctx->key_size - req->src_len - 2;
256 req_ctx->in_buf[0] = 0x02;
257 for (i = 1; i < ps_end; i++)
258 req_ctx->in_buf[i] = 1 + prandom_u32_max(255);
259 req_ctx->in_buf[ps_end] = 0x00;
260
261 pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
262 ctx->key_size - 1 - req->src_len, req->src);
263
264 req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
265 if (!req_ctx->out_buf) {
266 kfree(req_ctx->in_buf);
267 return -ENOMEM;
268 }
269
270 pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf,
271 ctx->key_size, NULL);
272
273 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
274 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
275 pkcs1pad_encrypt_sign_complete_cb, req);
276
277
278 akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg,
279 req->dst, ctx->key_size - 1, req->dst_len);
280
281 err = crypto_akcipher_encrypt(&req_ctx->child_req);
282 if (err != -EINPROGRESS &&
283 (err != -EBUSY ||
284 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
285 return pkcs1pad_encrypt_sign_complete(req, err);
286
287 return err;
288}
289
290static int pkcs1pad_decrypt_complete(struct akcipher_request *req, int err)
291{
292 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
293 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
294 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
295 unsigned int dst_len;
296 unsigned int pos;
297 u8 *out_buf;
298
299 if (err)
300 goto done;
301
302 err = -EINVAL;
303 dst_len = req_ctx->child_req.dst_len;
304 if (dst_len < ctx->key_size - 1)
305 goto done;
306
307 out_buf = req_ctx->out_buf;
308 if (dst_len == ctx->key_size) {
309 if (out_buf[0] != 0x00)
310
311 goto done;
312
313 dst_len--;
314 out_buf++;
315 }
316
317 if (out_buf[0] != 0x02)
318 goto done;
319
320 for (pos = 1; pos < dst_len; pos++)
321 if (out_buf[pos] == 0x00)
322 break;
323 if (pos < 9 || pos == dst_len)
324 goto done;
325 pos++;
326
327 err = 0;
328
329 if (req->dst_len < dst_len - pos)
330 err = -EOVERFLOW;
331 req->dst_len = dst_len - pos;
332
333 if (!err)
334 sg_copy_from_buffer(req->dst,
335 sg_nents_for_len(req->dst, req->dst_len),
336 out_buf + pos, req->dst_len);
337
338done:
339 kzfree(req_ctx->out_buf);
340
341 return err;
342}
343
344static void pkcs1pad_decrypt_complete_cb(
345 struct crypto_async_request *child_async_req, int err)
346{
347 struct akcipher_request *req = child_async_req->data;
348 struct crypto_async_request async_req;
349
350 if (err == -EINPROGRESS)
351 return;
352
353 async_req.data = req->base.data;
354 async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req));
355 async_req.flags = child_async_req->flags;
356 req->base.complete(&async_req, pkcs1pad_decrypt_complete(req, err));
357}
358
359static int pkcs1pad_decrypt(struct akcipher_request *req)
360{
361 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
362 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
363 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
364 int err;
365
366 if (!ctx->key_size || req->src_len != ctx->key_size)
367 return -EINVAL;
368
369 req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
370 if (!req_ctx->out_buf)
371 return -ENOMEM;
372
373 pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf,
374 ctx->key_size, NULL);
375
376 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
377 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
378 pkcs1pad_decrypt_complete_cb, req);
379
380
381 akcipher_request_set_crypt(&req_ctx->child_req, req->src,
382 req_ctx->out_sg, req->src_len,
383 ctx->key_size);
384
385 err = crypto_akcipher_decrypt(&req_ctx->child_req);
386 if (err != -EINPROGRESS &&
387 (err != -EBUSY ||
388 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
389 return pkcs1pad_decrypt_complete(req, err);
390
391 return err;
392}
393
394static int pkcs1pad_sign(struct akcipher_request *req)
395{
396 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
397 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
398 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
399 struct akcipher_instance *inst = akcipher_alg_instance(tfm);
400 struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
401 const struct rsa_asn1_template *digest_info = ictx->digest_info;
402 int err;
403 unsigned int ps_end, digest_size = 0;
404
405 if (!ctx->key_size)
406 return -EINVAL;
407
408 digest_size = digest_info->size;
409
410 if (req->src_len + digest_size > ctx->key_size - 11)
411 return -EOVERFLOW;
412
413 if (req->dst_len < ctx->key_size) {
414 req->dst_len = ctx->key_size;
415 return -EOVERFLOW;
416 }
417
418 req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
419 GFP_KERNEL);
420 if (!req_ctx->in_buf)
421 return -ENOMEM;
422
423 ps_end = ctx->key_size - digest_size - req->src_len - 2;
424 req_ctx->in_buf[0] = 0x01;
425 memset(req_ctx->in_buf + 1, 0xff, ps_end - 1);
426 req_ctx->in_buf[ps_end] = 0x00;
427
428 memcpy(req_ctx->in_buf + ps_end + 1, digest_info->data,
429 digest_info->size);
430
431 pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
432 ctx->key_size - 1 - req->src_len, req->src);
433
434 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
435 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
436 pkcs1pad_encrypt_sign_complete_cb, req);
437
438
439 akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg,
440 req->dst, ctx->key_size - 1, req->dst_len);
441
442 err = crypto_akcipher_sign(&req_ctx->child_req);
443 if (err != -EINPROGRESS &&
444 (err != -EBUSY ||
445 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
446 return pkcs1pad_encrypt_sign_complete(req, err);
447
448 return err;
449}
450
451static int pkcs1pad_verify_complete(struct akcipher_request *req, int err)
452{
453 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
454 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
455 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
456 struct akcipher_instance *inst = akcipher_alg_instance(tfm);
457 struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
458 const struct rsa_asn1_template *digest_info = ictx->digest_info;
459 unsigned int dst_len;
460 unsigned int pos;
461 u8 *out_buf;
462
463 if (err)
464 goto done;
465
466 err = -EINVAL;
467 dst_len = req_ctx->child_req.dst_len;
468 if (dst_len < ctx->key_size - 1)
469 goto done;
470
471 out_buf = req_ctx->out_buf;
472 if (dst_len == ctx->key_size) {
473 if (out_buf[0] != 0x00)
474
475 goto done;
476
477 dst_len--;
478 out_buf++;
479 }
480
481 err = -EBADMSG;
482 if (out_buf[0] != 0x01)
483 goto done;
484
485 for (pos = 1; pos < dst_len; pos++)
486 if (out_buf[pos] != 0xff)
487 break;
488
489 if (pos < 9 || pos == dst_len || out_buf[pos] != 0x00)
490 goto done;
491 pos++;
492
493 if (crypto_memneq(out_buf + pos, digest_info->data, digest_info->size))
494 goto done;
495
496 pos += digest_info->size;
497
498 err = 0;
499
500 if (req->dst_len < dst_len - pos)
501 err = -EOVERFLOW;
502 req->dst_len = dst_len - pos;
503
504 if (!err)
505 sg_copy_from_buffer(req->dst,
506 sg_nents_for_len(req->dst, req->dst_len),
507 out_buf + pos, req->dst_len);
508done:
509 kzfree(req_ctx->out_buf);
510
511 return err;
512}
513
514static void pkcs1pad_verify_complete_cb(
515 struct crypto_async_request *child_async_req, int err)
516{
517 struct akcipher_request *req = child_async_req->data;
518 struct crypto_async_request async_req;
519
520 if (err == -EINPROGRESS)
521 return;
522
523 async_req.data = req->base.data;
524 async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req));
525 async_req.flags = child_async_req->flags;
526 req->base.complete(&async_req, pkcs1pad_verify_complete(req, err));
527}
528
529
530
531
532
533
534
535
536
537static int pkcs1pad_verify(struct akcipher_request *req)
538{
539 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
540 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
541 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
542 int err;
543
544 if (!ctx->key_size || req->src_len < ctx->key_size)
545 return -EINVAL;
546
547 req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
548 if (!req_ctx->out_buf)
549 return -ENOMEM;
550
551 pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf,
552 ctx->key_size, NULL);
553
554 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
555 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
556 pkcs1pad_verify_complete_cb, req);
557
558
559 akcipher_request_set_crypt(&req_ctx->child_req, req->src,
560 req_ctx->out_sg, req->src_len,
561 ctx->key_size);
562
563 err = crypto_akcipher_verify(&req_ctx->child_req);
564 if (err != -EINPROGRESS &&
565 (err != -EBUSY ||
566 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
567 return pkcs1pad_verify_complete(req, err);
568
569 return err;
570}
571
572static int pkcs1pad_init_tfm(struct crypto_akcipher *tfm)
573{
574 struct akcipher_instance *inst = akcipher_alg_instance(tfm);
575 struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
576 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
577 struct crypto_akcipher *child_tfm;
578
579 child_tfm = crypto_spawn_akcipher(&ictx->spawn);
580 if (IS_ERR(child_tfm))
581 return PTR_ERR(child_tfm);
582
583 ctx->child = child_tfm;
584 return 0;
585}
586
587static void pkcs1pad_exit_tfm(struct crypto_akcipher *tfm)
588{
589 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
590
591 crypto_free_akcipher(ctx->child);
592}
593
594static void pkcs1pad_free(struct akcipher_instance *inst)
595{
596 struct pkcs1pad_inst_ctx *ctx = akcipher_instance_ctx(inst);
597 struct crypto_akcipher_spawn *spawn = &ctx->spawn;
598
599 crypto_drop_akcipher(spawn);
600 kfree(inst);
601}
602
603static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
604{
605 const struct rsa_asn1_template *digest_info;
606 struct crypto_attr_type *algt;
607 struct akcipher_instance *inst;
608 struct pkcs1pad_inst_ctx *ctx;
609 struct crypto_akcipher_spawn *spawn;
610 struct akcipher_alg *rsa_alg;
611 const char *rsa_alg_name;
612 const char *hash_name;
613 int err;
614
615 algt = crypto_get_attr_type(tb);
616 if (IS_ERR(algt))
617 return PTR_ERR(algt);
618
619 if ((algt->type ^ CRYPTO_ALG_TYPE_AKCIPHER) & algt->mask)
620 return -EINVAL;
621
622 rsa_alg_name = crypto_attr_alg_name(tb[1]);
623 if (IS_ERR(rsa_alg_name))
624 return PTR_ERR(rsa_alg_name);
625
626 hash_name = crypto_attr_alg_name(tb[2]);
627 if (IS_ERR(hash_name))
628 return PTR_ERR(hash_name);
629
630 digest_info = rsa_lookup_asn1(hash_name);
631 if (!digest_info)
632 return -EINVAL;
633
634 inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
635 if (!inst)
636 return -ENOMEM;
637
638 ctx = akcipher_instance_ctx(inst);
639 spawn = &ctx->spawn;
640 ctx->digest_info = digest_info;
641
642 crypto_set_spawn(&spawn->base, akcipher_crypto_instance(inst));
643 err = crypto_grab_akcipher(spawn, rsa_alg_name, 0,
644 crypto_requires_sync(algt->type, algt->mask));
645 if (err)
646 goto out_free_inst;
647
648 rsa_alg = crypto_spawn_akcipher_alg(spawn);
649
650 err = -ENAMETOOLONG;
651
652 if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
653 "pkcs1pad(%s,%s)", rsa_alg->base.cra_name, hash_name) >=
654 CRYPTO_MAX_ALG_NAME ||
655 snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
656 "pkcs1pad(%s,%s)",
657 rsa_alg->base.cra_driver_name, hash_name) >=
658 CRYPTO_MAX_ALG_NAME)
659 goto out_drop_alg;
660
661 inst->alg.base.cra_flags = rsa_alg->base.cra_flags & CRYPTO_ALG_ASYNC;
662 inst->alg.base.cra_priority = rsa_alg->base.cra_priority;
663 inst->alg.base.cra_ctxsize = sizeof(struct pkcs1pad_ctx);
664
665 inst->alg.init = pkcs1pad_init_tfm;
666 inst->alg.exit = pkcs1pad_exit_tfm;
667
668 inst->alg.encrypt = pkcs1pad_encrypt;
669 inst->alg.decrypt = pkcs1pad_decrypt;
670 inst->alg.sign = pkcs1pad_sign;
671 inst->alg.verify = pkcs1pad_verify;
672 inst->alg.set_pub_key = pkcs1pad_set_pub_key;
673 inst->alg.set_priv_key = pkcs1pad_set_priv_key;
674 inst->alg.max_size = pkcs1pad_get_max_size;
675 inst->alg.reqsize = sizeof(struct pkcs1pad_request) + rsa_alg->reqsize;
676
677 inst->free = pkcs1pad_free;
678
679 err = akcipher_register_instance(tmpl, inst);
680 if (err)
681 goto out_drop_alg;
682
683 return 0;
684
685out_drop_alg:
686 crypto_drop_akcipher(spawn);
687out_free_inst:
688 kfree(inst);
689 return err;
690}
691
692struct crypto_template rsa_pkcs1pad_tmpl = {
693 .name = "pkcs1pad",
694 .create = pkcs1pad_create,
695 .module = THIS_MODULE,
696};
697
