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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_KERNEL);
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 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
265 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
266 pkcs1pad_encrypt_sign_complete_cb, req);
267
268
269 akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg,
270 req->dst, ctx->key_size - 1, req->dst_len);
271
272 err = crypto_akcipher_encrypt(&req_ctx->child_req);
273 if (err != -EINPROGRESS && err != -EBUSY)
274 return pkcs1pad_encrypt_sign_complete(req, err);
275
276 return err;
277}
278
279static int pkcs1pad_decrypt_complete(struct akcipher_request *req, int err)
280{
281 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
282 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
283 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
284 unsigned int dst_len;
285 unsigned int pos;
286 u8 *out_buf;
287
288 if (err)
289 goto done;
290
291 err = -EINVAL;
292 dst_len = req_ctx->child_req.dst_len;
293 if (dst_len < ctx->key_size - 1)
294 goto done;
295
296 out_buf = req_ctx->out_buf;
297 if (dst_len == ctx->key_size) {
298 if (out_buf[0] != 0x00)
299
300 goto done;
301
302 dst_len--;
303 out_buf++;
304 }
305
306 if (out_buf[0] != 0x02)
307 goto done;
308
309 for (pos = 1; pos < dst_len; pos++)
310 if (out_buf[pos] == 0x00)
311 break;
312 if (pos < 9 || pos == dst_len)
313 goto done;
314 pos++;
315
316 err = 0;
317
318 if (req->dst_len < dst_len - pos)
319 err = -EOVERFLOW;
320 req->dst_len = dst_len - pos;
321
322 if (!err)
323 sg_copy_from_buffer(req->dst,
324 sg_nents_for_len(req->dst, req->dst_len),
325 out_buf + pos, req->dst_len);
326
327done:
328 kzfree(req_ctx->out_buf);
329
330 return err;
331}
332
333static void pkcs1pad_decrypt_complete_cb(
334 struct crypto_async_request *child_async_req, int err)
335{
336 struct akcipher_request *req = child_async_req->data;
337 struct crypto_async_request async_req;
338
339 if (err == -EINPROGRESS)
340 return;
341
342 async_req.data = req->base.data;
343 async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req));
344 async_req.flags = child_async_req->flags;
345 req->base.complete(&async_req, pkcs1pad_decrypt_complete(req, err));
346}
347
348static int pkcs1pad_decrypt(struct akcipher_request *req)
349{
350 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
351 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
352 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
353 int err;
354
355 if (!ctx->key_size || req->src_len != ctx->key_size)
356 return -EINVAL;
357
358 req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
359 if (!req_ctx->out_buf)
360 return -ENOMEM;
361
362 pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf,
363 ctx->key_size, NULL);
364
365 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
366 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
367 pkcs1pad_decrypt_complete_cb, req);
368
369
370 akcipher_request_set_crypt(&req_ctx->child_req, req->src,
371 req_ctx->out_sg, req->src_len,
372 ctx->key_size);
373
374 err = crypto_akcipher_decrypt(&req_ctx->child_req);
375 if (err != -EINPROGRESS && err != -EBUSY)
376 return pkcs1pad_decrypt_complete(req, err);
377
378 return err;
379}
380
381static int pkcs1pad_sign(struct akcipher_request *req)
382{
383 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
384 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
385 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
386 struct akcipher_instance *inst = akcipher_alg_instance(tfm);
387 struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
388 const struct rsa_asn1_template *digest_info = ictx->digest_info;
389 int err;
390 unsigned int ps_end, digest_size = 0;
391
392 if (!ctx->key_size)
393 return -EINVAL;
394
395 if (digest_info)
396 digest_size = digest_info->size;
397
398 if (req->src_len + digest_size > ctx->key_size - 11)
399 return -EOVERFLOW;
400
401 if (req->dst_len < ctx->key_size) {
402 req->dst_len = ctx->key_size;
403 return -EOVERFLOW;
404 }
405
406 req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
407 GFP_KERNEL);
408 if (!req_ctx->in_buf)
409 return -ENOMEM;
410
411 ps_end = ctx->key_size - digest_size - req->src_len - 2;
412 req_ctx->in_buf[0] = 0x01;
413 memset(req_ctx->in_buf + 1, 0xff, ps_end - 1);
414 req_ctx->in_buf[ps_end] = 0x00;
415
416 if (digest_info)
417 memcpy(req_ctx->in_buf + ps_end + 1, digest_info->data,
418 digest_info->size);
419
420 pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
421 ctx->key_size - 1 - req->src_len, req->src);
422
423 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
424 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
425 pkcs1pad_encrypt_sign_complete_cb, req);
426
427
428 akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg,
429 req->dst, ctx->key_size - 1, req->dst_len);
430
431 err = crypto_akcipher_sign(&req_ctx->child_req);
432 if (err != -EINPROGRESS && err != -EBUSY)
433 return pkcs1pad_encrypt_sign_complete(req, err);
434
435 return err;
436}
437
438static int pkcs1pad_verify_complete(struct akcipher_request *req, int err)
439{
440 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
441 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
442 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
443 struct akcipher_instance *inst = akcipher_alg_instance(tfm);
444 struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
445 const struct rsa_asn1_template *digest_info = ictx->digest_info;
446 unsigned int dst_len;
447 unsigned int pos;
448 u8 *out_buf;
449
450 if (err)
451 goto done;
452
453 err = -EINVAL;
454 dst_len = req_ctx->child_req.dst_len;
455 if (dst_len < ctx->key_size - 1)
456 goto done;
457
458 out_buf = req_ctx->out_buf;
459 if (dst_len == ctx->key_size) {
460 if (out_buf[0] != 0x00)
461
462 goto done;
463
464 dst_len--;
465 out_buf++;
466 }
467
468 err = -EBADMSG;
469 if (out_buf[0] != 0x01)
470 goto done;
471
472 for (pos = 1; pos < dst_len; pos++)
473 if (out_buf[pos] != 0xff)
474 break;
475
476 if (pos < 9 || pos == dst_len || out_buf[pos] != 0x00)
477 goto done;
478 pos++;
479
480 if (digest_info) {
481 if (crypto_memneq(out_buf + pos, digest_info->data,
482 digest_info->size))
483 goto done;
484
485 pos += digest_info->size;
486 }
487
488 err = 0;
489
490 if (req->dst_len < dst_len - pos)
491 err = -EOVERFLOW;
492 req->dst_len = dst_len - pos;
493
494 if (!err)
495 sg_copy_from_buffer(req->dst,
496 sg_nents_for_len(req->dst, req->dst_len),
497 out_buf + pos, req->dst_len);
498done:
499 kzfree(req_ctx->out_buf);
500
501 return err;
502}
503
504static void pkcs1pad_verify_complete_cb(
505 struct crypto_async_request *child_async_req, int err)
506{
507 struct akcipher_request *req = child_async_req->data;
508 struct crypto_async_request async_req;
509
510 if (err == -EINPROGRESS)
511 return;
512
513 async_req.data = req->base.data;
514 async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req));
515 async_req.flags = child_async_req->flags;
516 req->base.complete(&async_req, pkcs1pad_verify_complete(req, err));
517}
518
519
520
521
522
523
524
525
526
527static int pkcs1pad_verify(struct akcipher_request *req)
528{
529 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
530 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
531 struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
532 int err;
533
534 if (!ctx->key_size || req->src_len < ctx->key_size)
535 return -EINVAL;
536
537 req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
538 if (!req_ctx->out_buf)
539 return -ENOMEM;
540
541 pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf,
542 ctx->key_size, NULL);
543
544 akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
545 akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
546 pkcs1pad_verify_complete_cb, req);
547
548
549 akcipher_request_set_crypt(&req_ctx->child_req, req->src,
550 req_ctx->out_sg, req->src_len,
551 ctx->key_size);
552
553 err = crypto_akcipher_verify(&req_ctx->child_req);
554 if (err != -EINPROGRESS && err != -EBUSY)
555 return pkcs1pad_verify_complete(req, err);
556
557 return err;
558}
559
560static int pkcs1pad_init_tfm(struct crypto_akcipher *tfm)
561{
562 struct akcipher_instance *inst = akcipher_alg_instance(tfm);
563 struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
564 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
565 struct crypto_akcipher *child_tfm;
566
567 child_tfm = crypto_spawn_akcipher(&ictx->spawn);
568 if (IS_ERR(child_tfm))
569 return PTR_ERR(child_tfm);
570
571 ctx->child = child_tfm;
572 return 0;
573}
574
575static void pkcs1pad_exit_tfm(struct crypto_akcipher *tfm)
576{
577 struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
578
579 crypto_free_akcipher(ctx->child);
580}
581
582static void pkcs1pad_free(struct akcipher_instance *inst)
583{
584 struct pkcs1pad_inst_ctx *ctx = akcipher_instance_ctx(inst);
585 struct crypto_akcipher_spawn *spawn = &ctx->spawn;
586
587 crypto_drop_akcipher(spawn);
588 kfree(inst);
589}
590
591static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
592{
593 const struct rsa_asn1_template *digest_info;
594 struct crypto_attr_type *algt;
595 struct akcipher_instance *inst;
596 struct pkcs1pad_inst_ctx *ctx;
597 struct crypto_akcipher_spawn *spawn;
598 struct akcipher_alg *rsa_alg;
599 const char *rsa_alg_name;
600 const char *hash_name;
601 int err;
602
603 algt = crypto_get_attr_type(tb);
604 if (IS_ERR(algt))
605 return PTR_ERR(algt);
606
607 if ((algt->type ^ CRYPTO_ALG_TYPE_AKCIPHER) & algt->mask)
608 return -EINVAL;
609
610 rsa_alg_name = crypto_attr_alg_name(tb[1]);
611 if (IS_ERR(rsa_alg_name))
612 return PTR_ERR(rsa_alg_name);
613
614 hash_name = crypto_attr_alg_name(tb[2]);
615 if (IS_ERR(hash_name))
616 hash_name = NULL;
617
618 if (hash_name) {
619 digest_info = rsa_lookup_asn1(hash_name);
620 if (!digest_info)
621 return -EINVAL;
622 } else
623 digest_info = NULL;
624
625 inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
626 if (!inst)
627 return -ENOMEM;
628
629 ctx = akcipher_instance_ctx(inst);
630 spawn = &ctx->spawn;
631 ctx->digest_info = digest_info;
632
633 crypto_set_spawn(&spawn->base, akcipher_crypto_instance(inst));
634 err = crypto_grab_akcipher(spawn, rsa_alg_name, 0,
635 crypto_requires_sync(algt->type, algt->mask));
636 if (err)
637 goto out_free_inst;
638
639 rsa_alg = crypto_spawn_akcipher_alg(spawn);
640
641 err = -ENAMETOOLONG;
642
643 if (!hash_name) {
644 if (snprintf(inst->alg.base.cra_name,
645 CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)",
646 rsa_alg->base.cra_name) >= CRYPTO_MAX_ALG_NAME)
647 goto out_drop_alg;
648
649 if (snprintf(inst->alg.base.cra_driver_name,
650 CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)",
651 rsa_alg->base.cra_driver_name) >=
652 CRYPTO_MAX_ALG_NAME)
653 goto out_drop_alg;
654 } else {
655 if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
656 "pkcs1pad(%s,%s)", rsa_alg->base.cra_name,
657 hash_name) >= CRYPTO_MAX_ALG_NAME)
658 goto out_drop_alg;
659
660 if (snprintf(inst->alg.base.cra_driver_name,
661 CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s,%s)",
662 rsa_alg->base.cra_driver_name,
663 hash_name) >= CRYPTO_MAX_ALG_NAME)
664 goto out_drop_alg;
665 }
666
667 inst->alg.base.cra_flags = rsa_alg->base.cra_flags & CRYPTO_ALG_ASYNC;
668 inst->alg.base.cra_priority = rsa_alg->base.cra_priority;
669 inst->alg.base.cra_ctxsize = sizeof(struct pkcs1pad_ctx);
670
671 inst->alg.init = pkcs1pad_init_tfm;
672 inst->alg.exit = pkcs1pad_exit_tfm;
673
674 inst->alg.encrypt = pkcs1pad_encrypt;
675 inst->alg.decrypt = pkcs1pad_decrypt;
676 inst->alg.sign = pkcs1pad_sign;
677 inst->alg.verify = pkcs1pad_verify;
678 inst->alg.set_pub_key = pkcs1pad_set_pub_key;
679 inst->alg.set_priv_key = pkcs1pad_set_priv_key;
680 inst->alg.max_size = pkcs1pad_get_max_size;
681 inst->alg.reqsize = sizeof(struct pkcs1pad_request) + rsa_alg->reqsize;
682
683 inst->free = pkcs1pad_free;
684
685 err = akcipher_register_instance(tmpl, inst);
686 if (err)
687 goto out_drop_alg;
688
689 return 0;
690
691out_drop_alg:
692 crypto_drop_akcipher(spawn);
693out_free_inst:
694 kfree(inst);
695 return err;
696}
697
698struct crypto_template rsa_pkcs1pad_tmpl = {
699 .name = "pkcs1pad",
700 .create = pkcs1pad_create,
701 .module = THIS_MODULE,
702};
703
