1 // SPDX-License-Identifier: GPL-2.0-or-later 1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* RSA asymmetric public-key algorithm [RFC344 2 /* RSA asymmetric public-key algorithm [RFC3447]
3 * 3 *
4 * Copyright (c) 2015, Intel Corporation 4 * Copyright (c) 2015, Intel Corporation
5 * Authors: Tadeusz Struk <tadeusz.struk@intel 5 * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
6 */ 6 */
7 7
8 #include <linux/fips.h> 8 #include <linux/fips.h>
9 #include <linux/module.h> 9 #include <linux/module.h>
10 #include <linux/mpi.h> 10 #include <linux/mpi.h>
11 #include <crypto/internal/rsa.h> 11 #include <crypto/internal/rsa.h>
12 #include <crypto/internal/akcipher.h> 12 #include <crypto/internal/akcipher.h>
13 #include <crypto/akcipher.h> 13 #include <crypto/akcipher.h>
14 #include <crypto/algapi.h> 14 #include <crypto/algapi.h>
15 15
16 struct rsa_mpi_key { 16 struct rsa_mpi_key {
17 MPI n; 17 MPI n;
18 MPI e; 18 MPI e;
19 MPI d; 19 MPI d;
20 MPI p; 20 MPI p;
21 MPI q; 21 MPI q;
22 MPI dp; 22 MPI dp;
23 MPI dq; 23 MPI dq;
24 MPI qinv; 24 MPI qinv;
25 }; 25 };
26 26
27 static int rsa_check_payload(MPI x, MPI n) 27 static int rsa_check_payload(MPI x, MPI n)
28 { 28 {
29 MPI n1; 29 MPI n1;
30 30
31 if (mpi_cmp_ui(x, 1) <= 0) 31 if (mpi_cmp_ui(x, 1) <= 0)
32 return -EINVAL; 32 return -EINVAL;
33 33
34 n1 = mpi_alloc(0); 34 n1 = mpi_alloc(0);
35 if (!n1) 35 if (!n1)
36 return -ENOMEM; 36 return -ENOMEM;
37 37
38 if (mpi_sub_ui(n1, n, 1) || mpi_cmp(x, 38 if (mpi_sub_ui(n1, n, 1) || mpi_cmp(x, n1) >= 0) {
39 mpi_free(n1); 39 mpi_free(n1);
40 return -EINVAL; 40 return -EINVAL;
41 } 41 }
42 42
43 mpi_free(n1); 43 mpi_free(n1);
44 return 0; 44 return 0;
45 } 45 }
46 46
47 /* 47 /*
48 * RSAEP function [RFC3447 sec 5.1.1] 48 * RSAEP function [RFC3447 sec 5.1.1]
49 * c = m^e mod n; 49 * c = m^e mod n;
50 */ 50 */
51 static int _rsa_enc(const struct rsa_mpi_key * 51 static int _rsa_enc(const struct rsa_mpi_key *key, MPI c, MPI m)
52 { 52 {
53 /* 53 /*
54 * Even though (1) in RFC3447 only req 54 * Even though (1) in RFC3447 only requires 0 <= m <= n - 1, we are
55 * slightly more conservative and requ 55 * slightly more conservative and require 1 < m < n - 1. This is in line
56 * with SP 800-56Br2, Section 7.1.1. 56 * with SP 800-56Br2, Section 7.1.1.
57 */ 57 */
58 if (rsa_check_payload(m, key->n)) 58 if (rsa_check_payload(m, key->n))
59 return -EINVAL; 59 return -EINVAL;
60 60
61 /* (2) c = m^e mod n */ 61 /* (2) c = m^e mod n */
62 return mpi_powm(c, m, key->e, key->n); 62 return mpi_powm(c, m, key->e, key->n);
63 } 63 }
64 64
65 /* 65 /*
66 * RSADP function [RFC3447 sec 5.1.2] 66 * RSADP function [RFC3447 sec 5.1.2]
67 * m_1 = c^dP mod p; 67 * m_1 = c^dP mod p;
68 * m_2 = c^dQ mod q; 68 * m_2 = c^dQ mod q;
69 * h = (m_1 - m_2) * qInv mod p; 69 * h = (m_1 - m_2) * qInv mod p;
70 * m = m_2 + q * h; 70 * m = m_2 + q * h;
71 */ 71 */
72 static int _rsa_dec_crt(const struct rsa_mpi_k 72 static int _rsa_dec_crt(const struct rsa_mpi_key *key, MPI m_or_m1_or_h, MPI c)
73 { 73 {
74 MPI m2, m12_or_qh; 74 MPI m2, m12_or_qh;
75 int ret = -ENOMEM; 75 int ret = -ENOMEM;
76 76
77 /* 77 /*
78 * Even though (1) in RFC3447 only req 78 * Even though (1) in RFC3447 only requires 0 <= c <= n - 1, we are
79 * slightly more conservative and requ 79 * slightly more conservative and require 1 < c < n - 1. This is in line
80 * with SP 800-56Br2, Section 7.1.2. 80 * with SP 800-56Br2, Section 7.1.2.
81 */ 81 */
82 if (rsa_check_payload(c, key->n)) 82 if (rsa_check_payload(c, key->n))
83 return -EINVAL; 83 return -EINVAL;
84 84
85 m2 = mpi_alloc(0); 85 m2 = mpi_alloc(0);
86 m12_or_qh = mpi_alloc(0); 86 m12_or_qh = mpi_alloc(0);
87 if (!m2 || !m12_or_qh) 87 if (!m2 || !m12_or_qh)
88 goto err_free_mpi; 88 goto err_free_mpi;
89 89
90 /* (2i) m_1 = c^dP mod p */ 90 /* (2i) m_1 = c^dP mod p */
91 ret = mpi_powm(m_or_m1_or_h, c, key->d 91 ret = mpi_powm(m_or_m1_or_h, c, key->dp, key->p);
92 if (ret) 92 if (ret)
93 goto err_free_mpi; 93 goto err_free_mpi;
94 94
95 /* (2i) m_2 = c^dQ mod q */ 95 /* (2i) m_2 = c^dQ mod q */
96 ret = mpi_powm(m2, c, key->dq, key->q) 96 ret = mpi_powm(m2, c, key->dq, key->q);
97 if (ret) 97 if (ret)
98 goto err_free_mpi; 98 goto err_free_mpi;
99 99
100 /* (2iii) h = (m_1 - m_2) * qInv mod p 100 /* (2iii) h = (m_1 - m_2) * qInv mod p */
101 ret = mpi_sub(m12_or_qh, m_or_m1_or_h, 101 ret = mpi_sub(m12_or_qh, m_or_m1_or_h, m2) ?:
102 mpi_mulm(m_or_m1_or_h, m12_or_qh 102 mpi_mulm(m_or_m1_or_h, m12_or_qh, key->qinv, key->p);
103 103
104 /* (2iv) m = m_2 + q * h */ 104 /* (2iv) m = m_2 + q * h */
105 ret = ret ?: 105 ret = ret ?:
106 mpi_mul(m12_or_qh, key->q, m_or_ 106 mpi_mul(m12_or_qh, key->q, m_or_m1_or_h) ?:
107 mpi_addm(m_or_m1_or_h, m2, m12_o 107 mpi_addm(m_or_m1_or_h, m2, m12_or_qh, key->n);
108 108
109 err_free_mpi: 109 err_free_mpi:
110 mpi_free(m12_or_qh); 110 mpi_free(m12_or_qh);
111 mpi_free(m2); 111 mpi_free(m2);
112 return ret; 112 return ret;
113 } 113 }
114 114
115 static inline struct rsa_mpi_key *rsa_get_key( 115 static inline struct rsa_mpi_key *rsa_get_key(struct crypto_akcipher *tfm)
116 { 116 {
117 return akcipher_tfm_ctx(tfm); 117 return akcipher_tfm_ctx(tfm);
118 } 118 }
119 119
120 static int rsa_enc(struct akcipher_request *re 120 static int rsa_enc(struct akcipher_request *req)
121 { 121 {
122 struct crypto_akcipher *tfm = crypto_a 122 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
123 const struct rsa_mpi_key *pkey = rsa_g 123 const struct rsa_mpi_key *pkey = rsa_get_key(tfm);
124 MPI m, c = mpi_alloc(0); 124 MPI m, c = mpi_alloc(0);
125 int ret = 0; 125 int ret = 0;
126 int sign; 126 int sign;
127 127
128 if (!c) 128 if (!c)
129 return -ENOMEM; 129 return -ENOMEM;
130 130
131 if (unlikely(!pkey->n || !pkey->e)) { 131 if (unlikely(!pkey->n || !pkey->e)) {
132 ret = -EINVAL; 132 ret = -EINVAL;
133 goto err_free_c; 133 goto err_free_c;
134 } 134 }
135 135
136 ret = -ENOMEM; 136 ret = -ENOMEM;
137 m = mpi_read_raw_from_sgl(req->src, re 137 m = mpi_read_raw_from_sgl(req->src, req->src_len);
138 if (!m) 138 if (!m)
139 goto err_free_c; 139 goto err_free_c;
140 140
141 ret = _rsa_enc(pkey, c, m); 141 ret = _rsa_enc(pkey, c, m);
142 if (ret) 142 if (ret)
143 goto err_free_m; 143 goto err_free_m;
144 144
145 ret = mpi_write_to_sgl(c, req->dst, re 145 ret = mpi_write_to_sgl(c, req->dst, req->dst_len, &sign);
146 if (ret) 146 if (ret)
147 goto err_free_m; 147 goto err_free_m;
148 148
149 if (sign < 0) 149 if (sign < 0)
150 ret = -EBADMSG; 150 ret = -EBADMSG;
151 151
152 err_free_m: 152 err_free_m:
153 mpi_free(m); 153 mpi_free(m);
154 err_free_c: 154 err_free_c:
155 mpi_free(c); 155 mpi_free(c);
156 return ret; 156 return ret;
157 } 157 }
158 158
159 static int rsa_dec(struct akcipher_request *re 159 static int rsa_dec(struct akcipher_request *req)
160 { 160 {
161 struct crypto_akcipher *tfm = crypto_a 161 struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
162 const struct rsa_mpi_key *pkey = rsa_g 162 const struct rsa_mpi_key *pkey = rsa_get_key(tfm);
163 MPI c, m = mpi_alloc(0); 163 MPI c, m = mpi_alloc(0);
164 int ret = 0; 164 int ret = 0;
165 int sign; 165 int sign;
166 166
167 if (!m) 167 if (!m)
168 return -ENOMEM; 168 return -ENOMEM;
169 169
170 if (unlikely(!pkey->n || !pkey->d)) { 170 if (unlikely(!pkey->n || !pkey->d)) {
171 ret = -EINVAL; 171 ret = -EINVAL;
172 goto err_free_m; 172 goto err_free_m;
173 } 173 }
174 174
175 ret = -ENOMEM; 175 ret = -ENOMEM;
176 c = mpi_read_raw_from_sgl(req->src, re 176 c = mpi_read_raw_from_sgl(req->src, req->src_len);
177 if (!c) 177 if (!c)
178 goto err_free_m; 178 goto err_free_m;
179 179
180 ret = _rsa_dec_crt(pkey, m, c); 180 ret = _rsa_dec_crt(pkey, m, c);
181 if (ret) 181 if (ret)
182 goto err_free_c; 182 goto err_free_c;
183 183
184 ret = mpi_write_to_sgl(m, req->dst, re 184 ret = mpi_write_to_sgl(m, req->dst, req->dst_len, &sign);
185 if (ret) 185 if (ret)
186 goto err_free_c; 186 goto err_free_c;
187 187
188 if (sign < 0) 188 if (sign < 0)
189 ret = -EBADMSG; 189 ret = -EBADMSG;
190 err_free_c: 190 err_free_c:
191 mpi_free(c); 191 mpi_free(c);
192 err_free_m: 192 err_free_m:
193 mpi_free(m); 193 mpi_free(m);
194 return ret; 194 return ret;
195 } 195 }
196 196
197 static void rsa_free_mpi_key(struct rsa_mpi_ke 197 static void rsa_free_mpi_key(struct rsa_mpi_key *key)
198 { 198 {
199 mpi_free(key->d); 199 mpi_free(key->d);
200 mpi_free(key->e); 200 mpi_free(key->e);
201 mpi_free(key->n); 201 mpi_free(key->n);
202 mpi_free(key->p); 202 mpi_free(key->p);
203 mpi_free(key->q); 203 mpi_free(key->q);
204 mpi_free(key->dp); 204 mpi_free(key->dp);
205 mpi_free(key->dq); 205 mpi_free(key->dq);
206 mpi_free(key->qinv); 206 mpi_free(key->qinv);
207 key->d = NULL; 207 key->d = NULL;
208 key->e = NULL; 208 key->e = NULL;
209 key->n = NULL; 209 key->n = NULL;
210 key->p = NULL; 210 key->p = NULL;
211 key->q = NULL; 211 key->q = NULL;
212 key->dp = NULL; 212 key->dp = NULL;
213 key->dq = NULL; 213 key->dq = NULL;
214 key->qinv = NULL; 214 key->qinv = NULL;
215 } 215 }
216 216
217 static int rsa_check_key_length(unsigned int l 217 static int rsa_check_key_length(unsigned int len)
218 { 218 {
219 switch (len) { 219 switch (len) {
220 case 512: 220 case 512:
221 case 1024: 221 case 1024:
222 case 1536: 222 case 1536:
223 if (fips_enabled) 223 if (fips_enabled)
224 return -EINVAL; 224 return -EINVAL;
225 fallthrough; 225 fallthrough;
226 case 2048: 226 case 2048:
227 case 3072: 227 case 3072:
228 case 4096: 228 case 4096:
229 return 0; 229 return 0;
230 } 230 }
231 231
232 return -EINVAL; 232 return -EINVAL;
233 } 233 }
234 234
235 static int rsa_check_exponent_fips(MPI e) 235 static int rsa_check_exponent_fips(MPI e)
236 { 236 {
237 MPI e_max = NULL; 237 MPI e_max = NULL;
238 int err; 238 int err;
239 239
240 /* check if odd */ 240 /* check if odd */
241 if (!mpi_test_bit(e, 0)) { 241 if (!mpi_test_bit(e, 0)) {
242 return -EINVAL; 242 return -EINVAL;
243 } 243 }
244 244
245 /* check if 2^16 < e < 2^256. */ 245 /* check if 2^16 < e < 2^256. */
246 if (mpi_cmp_ui(e, 65536) <= 0) { 246 if (mpi_cmp_ui(e, 65536) <= 0) {
247 return -EINVAL; 247 return -EINVAL;
248 } 248 }
249 249
250 e_max = mpi_alloc(0); 250 e_max = mpi_alloc(0);
251 if (!e_max) 251 if (!e_max)
252 return -ENOMEM; 252 return -ENOMEM;
253 253
254 err = mpi_set_bit(e_max, 256); 254 err = mpi_set_bit(e_max, 256);
255 if (err) { 255 if (err) {
256 mpi_free(e_max); 256 mpi_free(e_max);
257 return err; 257 return err;
258 } 258 }
259 259
260 if (mpi_cmp(e, e_max) >= 0) { 260 if (mpi_cmp(e, e_max) >= 0) {
261 mpi_free(e_max); 261 mpi_free(e_max);
262 return -EINVAL; 262 return -EINVAL;
263 } 263 }
264 264
265 mpi_free(e_max); 265 mpi_free(e_max);
266 return 0; 266 return 0;
267 } 267 }
268 268
269 static int rsa_set_pub_key(struct crypto_akcip 269 static int rsa_set_pub_key(struct crypto_akcipher *tfm, const void *key,
270 unsigned int keylen 270 unsigned int keylen)
271 { 271 {
272 struct rsa_mpi_key *mpi_key = akcipher 272 struct rsa_mpi_key *mpi_key = akcipher_tfm_ctx(tfm);
273 struct rsa_key raw_key = {0}; 273 struct rsa_key raw_key = {0};
274 int ret; 274 int ret;
275 275
276 /* Free the old MPI key if any */ 276 /* Free the old MPI key if any */
277 rsa_free_mpi_key(mpi_key); 277 rsa_free_mpi_key(mpi_key);
278 278
279 ret = rsa_parse_pub_key(&raw_key, key, 279 ret = rsa_parse_pub_key(&raw_key, key, keylen);
280 if (ret) 280 if (ret)
281 return ret; 281 return ret;
282 282
283 mpi_key->e = mpi_read_raw_data(raw_key 283 mpi_key->e = mpi_read_raw_data(raw_key.e, raw_key.e_sz);
284 if (!mpi_key->e) 284 if (!mpi_key->e)
285 goto err; 285 goto err;
286 286
287 mpi_key->n = mpi_read_raw_data(raw_key 287 mpi_key->n = mpi_read_raw_data(raw_key.n, raw_key.n_sz);
288 if (!mpi_key->n) 288 if (!mpi_key->n)
289 goto err; 289 goto err;
290 290
291 if (rsa_check_key_length(mpi_get_size( 291 if (rsa_check_key_length(mpi_get_size(mpi_key->n) << 3)) {
292 rsa_free_mpi_key(mpi_key); 292 rsa_free_mpi_key(mpi_key);
293 return -EINVAL; 293 return -EINVAL;
294 } 294 }
295 295
296 if (fips_enabled && rsa_check_exponent 296 if (fips_enabled && rsa_check_exponent_fips(mpi_key->e)) {
297 rsa_free_mpi_key(mpi_key); 297 rsa_free_mpi_key(mpi_key);
298 return -EINVAL; 298 return -EINVAL;
299 } 299 }
300 300
301 return 0; 301 return 0;
302 302
303 err: 303 err:
304 rsa_free_mpi_key(mpi_key); 304 rsa_free_mpi_key(mpi_key);
305 return -ENOMEM; 305 return -ENOMEM;
306 } 306 }
307 307
308 static int rsa_set_priv_key(struct crypto_akci 308 static int rsa_set_priv_key(struct crypto_akcipher *tfm, const void *key,
309 unsigned int keyle 309 unsigned int keylen)
310 { 310 {
311 struct rsa_mpi_key *mpi_key = akcipher 311 struct rsa_mpi_key *mpi_key = akcipher_tfm_ctx(tfm);
312 struct rsa_key raw_key = {0}; 312 struct rsa_key raw_key = {0};
313 int ret; 313 int ret;
314 314
315 /* Free the old MPI key if any */ 315 /* Free the old MPI key if any */
316 rsa_free_mpi_key(mpi_key); 316 rsa_free_mpi_key(mpi_key);
317 317
318 ret = rsa_parse_priv_key(&raw_key, key 318 ret = rsa_parse_priv_key(&raw_key, key, keylen);
319 if (ret) 319 if (ret)
320 return ret; 320 return ret;
321 321
322 mpi_key->d = mpi_read_raw_data(raw_key 322 mpi_key->d = mpi_read_raw_data(raw_key.d, raw_key.d_sz);
323 if (!mpi_key->d) 323 if (!mpi_key->d)
324 goto err; 324 goto err;
325 325
326 mpi_key->e = mpi_read_raw_data(raw_key 326 mpi_key->e = mpi_read_raw_data(raw_key.e, raw_key.e_sz);
327 if (!mpi_key->e) 327 if (!mpi_key->e)
328 goto err; 328 goto err;
329 329
330 mpi_key->n = mpi_read_raw_data(raw_key 330 mpi_key->n = mpi_read_raw_data(raw_key.n, raw_key.n_sz);
331 if (!mpi_key->n) 331 if (!mpi_key->n)
332 goto err; 332 goto err;
333 333
334 mpi_key->p = mpi_read_raw_data(raw_key 334 mpi_key->p = mpi_read_raw_data(raw_key.p, raw_key.p_sz);
335 if (!mpi_key->p) 335 if (!mpi_key->p)
336 goto err; 336 goto err;
337 337
338 mpi_key->q = mpi_read_raw_data(raw_key 338 mpi_key->q = mpi_read_raw_data(raw_key.q, raw_key.q_sz);
339 if (!mpi_key->q) 339 if (!mpi_key->q)
340 goto err; 340 goto err;
341 341
342 mpi_key->dp = mpi_read_raw_data(raw_ke 342 mpi_key->dp = mpi_read_raw_data(raw_key.dp, raw_key.dp_sz);
343 if (!mpi_key->dp) 343 if (!mpi_key->dp)
344 goto err; 344 goto err;
345 345
346 mpi_key->dq = mpi_read_raw_data(raw_ke 346 mpi_key->dq = mpi_read_raw_data(raw_key.dq, raw_key.dq_sz);
347 if (!mpi_key->dq) 347 if (!mpi_key->dq)
348 goto err; 348 goto err;
349 349
350 mpi_key->qinv = mpi_read_raw_data(raw_ 350 mpi_key->qinv = mpi_read_raw_data(raw_key.qinv, raw_key.qinv_sz);
351 if (!mpi_key->qinv) 351 if (!mpi_key->qinv)
352 goto err; 352 goto err;
353 353
354 if (rsa_check_key_length(mpi_get_size( 354 if (rsa_check_key_length(mpi_get_size(mpi_key->n) << 3)) {
355 rsa_free_mpi_key(mpi_key); 355 rsa_free_mpi_key(mpi_key);
356 return -EINVAL; 356 return -EINVAL;
357 } 357 }
358 358
359 if (fips_enabled && rsa_check_exponent 359 if (fips_enabled && rsa_check_exponent_fips(mpi_key->e)) {
360 rsa_free_mpi_key(mpi_key); 360 rsa_free_mpi_key(mpi_key);
361 return -EINVAL; 361 return -EINVAL;
362 } 362 }
363 363
364 return 0; 364 return 0;
365 365
366 err: 366 err:
367 rsa_free_mpi_key(mpi_key); 367 rsa_free_mpi_key(mpi_key);
368 return -ENOMEM; 368 return -ENOMEM;
369 } 369 }
370 370
371 static unsigned int rsa_max_size(struct crypto 371 static unsigned int rsa_max_size(struct crypto_akcipher *tfm)
372 { 372 {
373 struct rsa_mpi_key *pkey = akcipher_tf 373 struct rsa_mpi_key *pkey = akcipher_tfm_ctx(tfm);
374 374
375 return mpi_get_size(pkey->n); 375 return mpi_get_size(pkey->n);
376 } 376 }
377 377
378 static void rsa_exit_tfm(struct crypto_akciphe 378 static void rsa_exit_tfm(struct crypto_akcipher *tfm)
379 { 379 {
380 struct rsa_mpi_key *pkey = akcipher_tf 380 struct rsa_mpi_key *pkey = akcipher_tfm_ctx(tfm);
381 381
382 rsa_free_mpi_key(pkey); 382 rsa_free_mpi_key(pkey);
383 } 383 }
384 384
385 static struct akcipher_alg rsa = { 385 static struct akcipher_alg rsa = {
386 .encrypt = rsa_enc, 386 .encrypt = rsa_enc,
387 .decrypt = rsa_dec, 387 .decrypt = rsa_dec,
388 .set_priv_key = rsa_set_priv_key, 388 .set_priv_key = rsa_set_priv_key,
389 .set_pub_key = rsa_set_pub_key, 389 .set_pub_key = rsa_set_pub_key,
390 .max_size = rsa_max_size, 390 .max_size = rsa_max_size,
391 .exit = rsa_exit_tfm, 391 .exit = rsa_exit_tfm,
392 .base = { 392 .base = {
393 .cra_name = "rsa", 393 .cra_name = "rsa",
394 .cra_driver_name = "rsa-generi 394 .cra_driver_name = "rsa-generic",
395 .cra_priority = 100, 395 .cra_priority = 100,
396 .cra_module = THIS_MODULE, 396 .cra_module = THIS_MODULE,
397 .cra_ctxsize = sizeof(struct r 397 .cra_ctxsize = sizeof(struct rsa_mpi_key),
398 }, 398 },
399 }; 399 };
400 400
401 static int __init rsa_init(void) 401 static int __init rsa_init(void)
402 { 402 {
403 int err; 403 int err;
404 404
405 err = crypto_register_akcipher(&rsa); 405 err = crypto_register_akcipher(&rsa);
406 if (err) 406 if (err)
407 return err; 407 return err;
408 408
409 err = crypto_register_template(&rsa_pk 409 err = crypto_register_template(&rsa_pkcs1pad_tmpl);
410 if (err) { 410 if (err) {
411 crypto_unregister_akcipher(&rs 411 crypto_unregister_akcipher(&rsa);
412 return err; 412 return err;
413 } 413 }
414 414
415 return 0; 415 return 0;
416 } 416 }
417 417
418 static void __exit rsa_exit(void) 418 static void __exit rsa_exit(void)
419 { 419 {
420 crypto_unregister_template(&rsa_pkcs1p 420 crypto_unregister_template(&rsa_pkcs1pad_tmpl);
421 crypto_unregister_akcipher(&rsa); 421 crypto_unregister_akcipher(&rsa);
422 } 422 }
423 423
424 subsys_initcall(rsa_init); 424 subsys_initcall(rsa_init);
425 module_exit(rsa_exit); 425 module_exit(rsa_exit);
426 MODULE_ALIAS_CRYPTO("rsa"); 426 MODULE_ALIAS_CRYPTO("rsa");
427 MODULE_LICENSE("GPL"); 427 MODULE_LICENSE("GPL");
428 MODULE_DESCRIPTION("RSA generic algorithm"); 428 MODULE_DESCRIPTION("RSA generic algorithm");
429 429
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