// SPDX-License-Identifier: GPL-2.0-or-later
|
/*
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* RSA padding templates.
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*
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* Copyright (c) 2015 Intel Corporation
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*/
|
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#include <crypto/algapi.h>
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#include <crypto/akcipher.h>
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#include <crypto/internal/akcipher.h>
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#include <crypto/internal/rsa.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/random.h>
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#include <linux/scatterlist.h>
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/*
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* Hash algorithm OIDs plus ASN.1 DER wrappings [RFC4880 sec 5.2.2].
|
*/
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static const u8 rsa_digest_info_md5[] = {
|
0x30, 0x20, 0x30, 0x0c, 0x06, 0x08,
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0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x02, 0x05, /* OID */
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0x05, 0x00, 0x04, 0x10
|
};
|
|
static const u8 rsa_digest_info_sha1[] = {
|
0x30, 0x21, 0x30, 0x09, 0x06, 0x05,
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0x2b, 0x0e, 0x03, 0x02, 0x1a,
|
0x05, 0x00, 0x04, 0x14
|
};
|
|
static const u8 rsa_digest_info_rmd160[] = {
|
0x30, 0x21, 0x30, 0x09, 0x06, 0x05,
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0x2b, 0x24, 0x03, 0x02, 0x01,
|
0x05, 0x00, 0x04, 0x14
|
};
|
|
static const u8 rsa_digest_info_sha224[] = {
|
0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09,
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0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04,
|
0x05, 0x00, 0x04, 0x1c
|
};
|
|
static const u8 rsa_digest_info_sha256[] = {
|
0x30, 0x31, 0x30, 0x0d, 0x06, 0x09,
|
0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01,
|
0x05, 0x00, 0x04, 0x20
|
};
|
|
static const u8 rsa_digest_info_sha384[] = {
|
0x30, 0x41, 0x30, 0x0d, 0x06, 0x09,
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0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02,
|
0x05, 0x00, 0x04, 0x30
|
};
|
|
static const u8 rsa_digest_info_sha512[] = {
|
0x30, 0x51, 0x30, 0x0d, 0x06, 0x09,
|
0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03,
|
0x05, 0x00, 0x04, 0x40
|
};
|
|
static const struct rsa_asn1_template {
|
const char *name;
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const u8 *data;
|
size_t size;
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} rsa_asn1_templates[] = {
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#define _(X) { #X, rsa_digest_info_##X, sizeof(rsa_digest_info_##X) }
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_(md5),
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_(sha1),
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_(rmd160),
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_(sha256),
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_(sha384),
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_(sha512),
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_(sha224),
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{ NULL }
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#undef _
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};
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static const struct rsa_asn1_template *rsa_lookup_asn1(const char *name)
|
{
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const struct rsa_asn1_template *p;
|
|
for (p = rsa_asn1_templates; p->name; p++)
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if (strcmp(name, p->name) == 0)
|
return p;
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return NULL;
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}
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struct pkcs1pad_ctx {
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struct crypto_akcipher *child;
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unsigned int key_size;
|
};
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struct pkcs1pad_inst_ctx {
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struct crypto_akcipher_spawn spawn;
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const struct rsa_asn1_template *digest_info;
|
};
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struct pkcs1pad_request {
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struct scatterlist in_sg[2], out_sg[1];
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uint8_t *in_buf, *out_buf;
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struct akcipher_request child_req;
|
};
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static int pkcs1pad_set_pub_key(struct crypto_akcipher *tfm, const void *key,
|
unsigned int keylen)
|
{
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struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
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int err;
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ctx->key_size = 0;
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err = crypto_akcipher_set_pub_key(ctx->child, key, keylen);
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if (err)
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return err;
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/* Find out new modulus size from rsa implementation */
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err = crypto_akcipher_maxsize(ctx->child);
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if (err > PAGE_SIZE)
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return -ENOTSUPP;
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ctx->key_size = err;
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return 0;
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}
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static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
|
unsigned int keylen)
|
{
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struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
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int err;
|
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ctx->key_size = 0;
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err = crypto_akcipher_set_priv_key(ctx->child, key, keylen);
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if (err)
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return err;
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|
/* Find out new modulus size from rsa implementation */
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err = crypto_akcipher_maxsize(ctx->child);
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if (err > PAGE_SIZE)
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return -ENOTSUPP;
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|
ctx->key_size = err;
|
return 0;
|
}
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|
static unsigned int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)
|
{
|
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
|
/*
|
* The maximum destination buffer size for the encrypt/sign operations
|
* will be the same as for RSA, even though it's smaller for
|
* decrypt/verify.
|
*/
|
|
return ctx->key_size;
|
}
|
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static void pkcs1pad_sg_set_buf(struct scatterlist *sg, void *buf, size_t len,
|
struct scatterlist *next)
|
{
|
int nsegs = next ? 2 : 1;
|
|
sg_init_table(sg, nsegs);
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sg_set_buf(sg, buf, len);
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|
if (next)
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sg_chain(sg, nsegs, next);
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}
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static int pkcs1pad_encrypt_sign_complete(struct akcipher_request *req, int err)
|
{
|
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
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struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
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struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
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unsigned int pad_len;
|
unsigned int len;
|
u8 *out_buf;
|
|
if (err)
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goto out;
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len = req_ctx->child_req.dst_len;
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pad_len = ctx->key_size - len;
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|
/* Four billion to one */
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if (likely(!pad_len))
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goto out;
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|
out_buf = kzalloc(ctx->key_size, GFP_KERNEL);
|
err = -ENOMEM;
|
if (!out_buf)
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goto out;
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|
sg_copy_to_buffer(req->dst, sg_nents_for_len(req->dst, len),
|
out_buf + pad_len, len);
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sg_copy_from_buffer(req->dst,
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sg_nents_for_len(req->dst, ctx->key_size),
|
out_buf, ctx->key_size);
|
kfree_sensitive(out_buf);
|
|
out:
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req->dst_len = ctx->key_size;
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|
kfree(req_ctx->in_buf);
|
|
return err;
|
}
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static void pkcs1pad_encrypt_sign_complete_cb(
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struct crypto_async_request *child_async_req, int err)
|
{
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struct akcipher_request *req = child_async_req->data;
|
|
if (err == -EINPROGRESS)
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goto out;
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|
err = pkcs1pad_encrypt_sign_complete(req, err);
|
|
out:
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akcipher_request_complete(req, err);
|
}
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static int pkcs1pad_encrypt(struct akcipher_request *req)
|
{
|
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
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struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
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struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
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int err;
|
unsigned int i, ps_end;
|
|
if (!ctx->key_size)
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return -EINVAL;
|
|
if (req->src_len > ctx->key_size - 11)
|
return -EOVERFLOW;
|
|
if (req->dst_len < ctx->key_size) {
|
req->dst_len = ctx->key_size;
|
return -EOVERFLOW;
|
}
|
|
req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
|
GFP_KERNEL);
|
if (!req_ctx->in_buf)
|
return -ENOMEM;
|
|
ps_end = ctx->key_size - req->src_len - 2;
|
req_ctx->in_buf[0] = 0x02;
|
for (i = 1; i < ps_end; i++)
|
req_ctx->in_buf[i] = 1 + prandom_u32_max(255);
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req_ctx->in_buf[ps_end] = 0x00;
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pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
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ctx->key_size - 1 - req->src_len, req->src);
|
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akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
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akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
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pkcs1pad_encrypt_sign_complete_cb, req);
|
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/* Reuse output buffer */
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akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg,
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req->dst, ctx->key_size - 1, req->dst_len);
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err = crypto_akcipher_encrypt(&req_ctx->child_req);
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if (err != -EINPROGRESS && err != -EBUSY)
|
return pkcs1pad_encrypt_sign_complete(req, err);
|
|
return err;
|
}
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static int pkcs1pad_decrypt_complete(struct akcipher_request *req, int err)
|
{
|
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
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struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
|
unsigned int dst_len;
|
unsigned int pos;
|
u8 *out_buf;
|
|
if (err)
|
goto done;
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|
err = -EINVAL;
|
dst_len = req_ctx->child_req.dst_len;
|
if (dst_len < ctx->key_size - 1)
|
goto done;
|
|
out_buf = req_ctx->out_buf;
|
if (dst_len == ctx->key_size) {
|
if (out_buf[0] != 0x00)
|
/* Decrypted value had no leading 0 byte */
|
goto done;
|
|
dst_len--;
|
out_buf++;
|
}
|
|
if (out_buf[0] != 0x02)
|
goto done;
|
|
for (pos = 1; pos < dst_len; pos++)
|
if (out_buf[pos] == 0x00)
|
break;
|
if (pos < 9 || pos == dst_len)
|
goto done;
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pos++;
|
|
err = 0;
|
|
if (req->dst_len < dst_len - pos)
|
err = -EOVERFLOW;
|
req->dst_len = dst_len - pos;
|
|
if (!err)
|
sg_copy_from_buffer(req->dst,
|
sg_nents_for_len(req->dst, req->dst_len),
|
out_buf + pos, req->dst_len);
|
|
done:
|
kfree_sensitive(req_ctx->out_buf);
|
|
return err;
|
}
|
|
static void pkcs1pad_decrypt_complete_cb(
|
struct crypto_async_request *child_async_req, int err)
|
{
|
struct akcipher_request *req = child_async_req->data;
|
|
if (err == -EINPROGRESS)
|
goto out;
|
|
err = pkcs1pad_decrypt_complete(req, err);
|
|
out:
|
akcipher_request_complete(req, err);
|
}
|
|
static int pkcs1pad_decrypt(struct akcipher_request *req)
|
{
|
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
|
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
|
int err;
|
|
if (!ctx->key_size || req->src_len != ctx->key_size)
|
return -EINVAL;
|
|
req_ctx->out_buf = kmalloc(ctx->key_size, GFP_KERNEL);
|
if (!req_ctx->out_buf)
|
return -ENOMEM;
|
|
pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf,
|
ctx->key_size, NULL);
|
|
akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
|
akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
|
pkcs1pad_decrypt_complete_cb, req);
|
|
/* Reuse input buffer, output to a new buffer */
|
akcipher_request_set_crypt(&req_ctx->child_req, req->src,
|
req_ctx->out_sg, req->src_len,
|
ctx->key_size);
|
|
err = crypto_akcipher_decrypt(&req_ctx->child_req);
|
if (err != -EINPROGRESS && err != -EBUSY)
|
return pkcs1pad_decrypt_complete(req, err);
|
|
return err;
|
}
|
|
static int pkcs1pad_sign(struct akcipher_request *req)
|
{
|
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
|
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
|
struct akcipher_instance *inst = akcipher_alg_instance(tfm);
|
struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
|
const struct rsa_asn1_template *digest_info = ictx->digest_info;
|
int err;
|
unsigned int ps_end, digest_size = 0;
|
|
if (!ctx->key_size)
|
return -EINVAL;
|
|
if (digest_info)
|
digest_size = digest_info->size;
|
|
if (req->src_len + digest_size > ctx->key_size - 11)
|
return -EOVERFLOW;
|
|
if (req->dst_len < ctx->key_size) {
|
req->dst_len = ctx->key_size;
|
return -EOVERFLOW;
|
}
|
|
req_ctx->in_buf = kmalloc(ctx->key_size - 1 - req->src_len,
|
GFP_KERNEL);
|
if (!req_ctx->in_buf)
|
return -ENOMEM;
|
|
ps_end = ctx->key_size - digest_size - req->src_len - 2;
|
req_ctx->in_buf[0] = 0x01;
|
memset(req_ctx->in_buf + 1, 0xff, ps_end - 1);
|
req_ctx->in_buf[ps_end] = 0x00;
|
|
if (digest_info)
|
memcpy(req_ctx->in_buf + ps_end + 1, digest_info->data,
|
digest_info->size);
|
|
pkcs1pad_sg_set_buf(req_ctx->in_sg, req_ctx->in_buf,
|
ctx->key_size - 1 - req->src_len, req->src);
|
|
akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
|
akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
|
pkcs1pad_encrypt_sign_complete_cb, req);
|
|
/* Reuse output buffer */
|
akcipher_request_set_crypt(&req_ctx->child_req, req_ctx->in_sg,
|
req->dst, ctx->key_size - 1, req->dst_len);
|
|
err = crypto_akcipher_decrypt(&req_ctx->child_req);
|
if (err != -EINPROGRESS && err != -EBUSY)
|
return pkcs1pad_encrypt_sign_complete(req, err);
|
|
return err;
|
}
|
|
static int pkcs1pad_verify_complete(struct akcipher_request *req, int err)
|
{
|
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
|
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
|
struct akcipher_instance *inst = akcipher_alg_instance(tfm);
|
struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
|
const struct rsa_asn1_template *digest_info = ictx->digest_info;
|
unsigned int dst_len;
|
unsigned int pos;
|
u8 *out_buf;
|
|
if (err)
|
goto done;
|
|
err = -EINVAL;
|
dst_len = req_ctx->child_req.dst_len;
|
if (dst_len < ctx->key_size - 1)
|
goto done;
|
|
out_buf = req_ctx->out_buf;
|
if (dst_len == ctx->key_size) {
|
if (out_buf[0] != 0x00)
|
/* Decrypted value had no leading 0 byte */
|
goto done;
|
|
dst_len--;
|
out_buf++;
|
}
|
|
err = -EBADMSG;
|
if (out_buf[0] != 0x01)
|
goto done;
|
|
for (pos = 1; pos < dst_len; pos++)
|
if (out_buf[pos] != 0xff)
|
break;
|
|
if (pos < 9 || pos == dst_len || out_buf[pos] != 0x00)
|
goto done;
|
pos++;
|
|
if (digest_info) {
|
if (digest_info->size > dst_len - pos)
|
goto done;
|
if (crypto_memneq(out_buf + pos, digest_info->data,
|
digest_info->size))
|
goto done;
|
|
pos += digest_info->size;
|
}
|
|
err = 0;
|
|
if (req->dst_len != dst_len - pos) {
|
err = -EKEYREJECTED;
|
req->dst_len = dst_len - pos;
|
goto done;
|
}
|
/* Extract appended digest. */
|
sg_pcopy_to_buffer(req->src,
|
sg_nents_for_len(req->src,
|
req->src_len + req->dst_len),
|
req_ctx->out_buf + ctx->key_size,
|
req->dst_len, req->src_len);
|
/* Do the actual verification step. */
|
if (memcmp(req_ctx->out_buf + ctx->key_size, out_buf + pos,
|
req->dst_len) != 0)
|
err = -EKEYREJECTED;
|
done:
|
kfree_sensitive(req_ctx->out_buf);
|
|
return err;
|
}
|
|
static void pkcs1pad_verify_complete_cb(
|
struct crypto_async_request *child_async_req, int err)
|
{
|
struct akcipher_request *req = child_async_req->data;
|
|
if (err == -EINPROGRESS)
|
goto out;
|
|
err = pkcs1pad_verify_complete(req, err);
|
|
out:
|
akcipher_request_complete(req, err);
|
}
|
|
/*
|
* The verify operation is here for completeness similar to the verification
|
* defined in RFC2313 section 10.2 except that block type 0 is not accepted,
|
* as in RFC2437. RFC2437 section 9.2 doesn't define any operation to
|
* retrieve the DigestInfo from a signature, instead the user is expected
|
* to call the sign operation to generate the expected signature and compare
|
* signatures instead of the message-digests.
|
*/
|
static int pkcs1pad_verify(struct akcipher_request *req)
|
{
|
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
|
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
struct pkcs1pad_request *req_ctx = akcipher_request_ctx(req);
|
int err;
|
|
if (WARN_ON(req->dst) ||
|
WARN_ON(!req->dst_len) ||
|
!ctx->key_size || req->src_len != ctx->key_size)
|
return -EINVAL;
|
|
req_ctx->out_buf = kmalloc(ctx->key_size + req->dst_len, GFP_KERNEL);
|
if (!req_ctx->out_buf)
|
return -ENOMEM;
|
|
pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf,
|
ctx->key_size, NULL);
|
|
akcipher_request_set_tfm(&req_ctx->child_req, ctx->child);
|
akcipher_request_set_callback(&req_ctx->child_req, req->base.flags,
|
pkcs1pad_verify_complete_cb, req);
|
|
/* Reuse input buffer, output to a new buffer */
|
akcipher_request_set_crypt(&req_ctx->child_req, req->src,
|
req_ctx->out_sg, req->src_len,
|
ctx->key_size);
|
|
err = crypto_akcipher_encrypt(&req_ctx->child_req);
|
if (err != -EINPROGRESS && err != -EBUSY)
|
return pkcs1pad_verify_complete(req, err);
|
|
return err;
|
}
|
|
static int pkcs1pad_init_tfm(struct crypto_akcipher *tfm)
|
{
|
struct akcipher_instance *inst = akcipher_alg_instance(tfm);
|
struct pkcs1pad_inst_ctx *ictx = akcipher_instance_ctx(inst);
|
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
struct crypto_akcipher *child_tfm;
|
|
child_tfm = crypto_spawn_akcipher(&ictx->spawn);
|
if (IS_ERR(child_tfm))
|
return PTR_ERR(child_tfm);
|
|
ctx->child = child_tfm;
|
return 0;
|
}
|
|
static void pkcs1pad_exit_tfm(struct crypto_akcipher *tfm)
|
{
|
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
|
|
crypto_free_akcipher(ctx->child);
|
}
|
|
static void pkcs1pad_free(struct akcipher_instance *inst)
|
{
|
struct pkcs1pad_inst_ctx *ctx = akcipher_instance_ctx(inst);
|
struct crypto_akcipher_spawn *spawn = &ctx->spawn;
|
|
crypto_drop_akcipher(spawn);
|
kfree(inst);
|
}
|
|
static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
|
{
|
u32 mask;
|
struct akcipher_instance *inst;
|
struct pkcs1pad_inst_ctx *ctx;
|
struct akcipher_alg *rsa_alg;
|
const char *hash_name;
|
int err;
|
|
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_AKCIPHER, &mask);
|
if (err)
|
return err;
|
|
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
|
if (!inst)
|
return -ENOMEM;
|
|
ctx = akcipher_instance_ctx(inst);
|
|
err = crypto_grab_akcipher(&ctx->spawn, akcipher_crypto_instance(inst),
|
crypto_attr_alg_name(tb[1]), 0, mask);
|
if (err)
|
goto err_free_inst;
|
|
rsa_alg = crypto_spawn_akcipher_alg(&ctx->spawn);
|
|
if (strcmp(rsa_alg->base.cra_name, "rsa") != 0) {
|
err = -EINVAL;
|
goto err_free_inst;
|
}
|
|
err = -ENAMETOOLONG;
|
hash_name = crypto_attr_alg_name(tb[2]);
|
if (IS_ERR(hash_name)) {
|
if (snprintf(inst->alg.base.cra_name,
|
CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)",
|
rsa_alg->base.cra_name) >= CRYPTO_MAX_ALG_NAME)
|
goto err_free_inst;
|
|
if (snprintf(inst->alg.base.cra_driver_name,
|
CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s)",
|
rsa_alg->base.cra_driver_name) >=
|
CRYPTO_MAX_ALG_NAME)
|
goto err_free_inst;
|
} else {
|
ctx->digest_info = rsa_lookup_asn1(hash_name);
|
if (!ctx->digest_info) {
|
err = -EINVAL;
|
goto err_free_inst;
|
}
|
|
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
|
"pkcs1pad(%s,%s)", rsa_alg->base.cra_name,
|
hash_name) >= CRYPTO_MAX_ALG_NAME)
|
goto err_free_inst;
|
|
if (snprintf(inst->alg.base.cra_driver_name,
|
CRYPTO_MAX_ALG_NAME, "pkcs1pad(%s,%s)",
|
rsa_alg->base.cra_driver_name,
|
hash_name) >= CRYPTO_MAX_ALG_NAME)
|
goto err_free_inst;
|
}
|
|
inst->alg.base.cra_priority = rsa_alg->base.cra_priority;
|
inst->alg.base.cra_ctxsize = sizeof(struct pkcs1pad_ctx);
|
|
inst->alg.init = pkcs1pad_init_tfm;
|
inst->alg.exit = pkcs1pad_exit_tfm;
|
|
inst->alg.encrypt = pkcs1pad_encrypt;
|
inst->alg.decrypt = pkcs1pad_decrypt;
|
inst->alg.sign = pkcs1pad_sign;
|
inst->alg.verify = pkcs1pad_verify;
|
inst->alg.set_pub_key = pkcs1pad_set_pub_key;
|
inst->alg.set_priv_key = pkcs1pad_set_priv_key;
|
inst->alg.max_size = pkcs1pad_get_max_size;
|
inst->alg.reqsize = sizeof(struct pkcs1pad_request) + rsa_alg->reqsize;
|
|
inst->free = pkcs1pad_free;
|
|
err = akcipher_register_instance(tmpl, inst);
|
if (err) {
|
err_free_inst:
|
pkcs1pad_free(inst);
|
}
|
return err;
|
}
|
|
struct crypto_template rsa_pkcs1pad_tmpl = {
|
.name = "pkcs1pad",
|
.create = pkcs1pad_create,
|
.module = THIS_MODULE,
|
};
|
