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diff --git a/src/lib/libcrypto/rsa/rsa_lib.c b/src/lib/libcrypto/rsa/rsa_lib.c
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1/* $OpenBSD: rsa_lib.c,v 1.50 2024/03/27 01:22:30 tb Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60
61#include <openssl/opensslconf.h>
62
63#include <openssl/bn.h>
64#include <openssl/crypto.h>
65#include <openssl/err.h>
66#include <openssl/evp.h>
67#include <openssl/lhash.h>
68#include <openssl/rsa.h>
69
70#include "bn_local.h"
71#include "evp_local.h"
72#include "rsa_local.h"
73
74static const RSA_METHOD *default_RSA_meth = NULL;
75
76RSA *
77RSA_new(void)
78{
79 RSA *r = RSA_new_method(NULL);
80
81 return r;
82}
83LCRYPTO_ALIAS(RSA_new);
84
85void
86RSA_set_default_method(const RSA_METHOD *meth)
87{
88 default_RSA_meth = meth;
89}
90LCRYPTO_ALIAS(RSA_set_default_method);
91
92const RSA_METHOD *
93RSA_get_default_method(void)
94{
95 if (default_RSA_meth == NULL)
96 default_RSA_meth = RSA_PKCS1_SSLeay();
97
98 return default_RSA_meth;
99}
100LCRYPTO_ALIAS(RSA_get_default_method);
101
102const RSA_METHOD *
103RSA_get_method(const RSA *rsa)
104{
105 return rsa->meth;
106}
107LCRYPTO_ALIAS(RSA_get_method);
108
109int
110RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
111{
112 /*
113 * NB: The caller is specifically setting a method, so it's not up to us
114 * to deal with which ENGINE it comes from.
115 */
116 const RSA_METHOD *mtmp;
117
118 mtmp = rsa->meth;
119 if (mtmp->finish)
120 mtmp->finish(rsa);
121 rsa->meth = meth;
122 if (meth->init)
123 meth->init(rsa);
124 return 1;
125}
126LCRYPTO_ALIAS(RSA_set_method);
127
128RSA *
129RSA_new_method(ENGINE *engine)
130{
131 RSA *ret;
132
133 if ((ret = calloc(1, sizeof(RSA))) == NULL) {
134 RSAerror(ERR_R_MALLOC_FAILURE);
135 return NULL;
136 }
137
138 ret->meth = RSA_get_default_method();
139
140 ret->references = 1;
141 ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
142
143 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data))
144 goto err;
145
146 if (ret->meth->init != NULL && !ret->meth->init(ret)) {
147 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
148 goto err;
149 }
150
151 return ret;
152
153 err:
154 free(ret);
155
156 return NULL;
157}
158LCRYPTO_ALIAS(RSA_new_method);
159
160void
161RSA_free(RSA *r)
162{
163 int i;
164
165 if (r == NULL)
166 return;
167
168 i = CRYPTO_add(&r->references, -1, CRYPTO_LOCK_RSA);
169 if (i > 0)
170 return;
171
172 if (r->meth->finish)
173 r->meth->finish(r);
174
175 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
176
177 BN_free(r->n);
178 BN_free(r->e);
179 BN_free(r->d);
180 BN_free(r->p);
181 BN_free(r->q);
182 BN_free(r->dmp1);
183 BN_free(r->dmq1);
184 BN_free(r->iqmp);
185 BN_BLINDING_free(r->blinding);
186 BN_BLINDING_free(r->mt_blinding);
187 RSA_PSS_PARAMS_free(r->pss);
188 free(r);
189}
190LCRYPTO_ALIAS(RSA_free);
191
192int
193RSA_up_ref(RSA *r)
194{
195 return CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA) > 1;
196}
197LCRYPTO_ALIAS(RSA_up_ref);
198
199int
200RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
201 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
202{
203 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp,
204 new_func, dup_func, free_func);
205}
206LCRYPTO_ALIAS(RSA_get_ex_new_index);
207
208int
209RSA_set_ex_data(RSA *r, int idx, void *arg)
210{
211 return CRYPTO_set_ex_data(&r->ex_data, idx, arg);
212}
213LCRYPTO_ALIAS(RSA_set_ex_data);
214
215void *
216RSA_get_ex_data(const RSA *r, int idx)
217{
218 return CRYPTO_get_ex_data(&r->ex_data, idx);
219}
220LCRYPTO_ALIAS(RSA_get_ex_data);
221
222int
223RSA_security_bits(const RSA *rsa)
224{
225 return BN_security_bits(RSA_bits(rsa), -1);
226}
227LCRYPTO_ALIAS(RSA_security_bits);
228
229void
230RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
231{
232 if (n != NULL)
233 *n = r->n;
234 if (e != NULL)
235 *e = r->e;
236 if (d != NULL)
237 *d = r->d;
238}
239LCRYPTO_ALIAS(RSA_get0_key);
240
241int
242RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
243{
244 if ((r->n == NULL && n == NULL) || (r->e == NULL && e == NULL))
245 return 0;
246
247 if (n != NULL) {
248 BN_free(r->n);
249 r->n = n;
250 }
251 if (e != NULL) {
252 BN_free(r->e);
253 r->e = e;
254 }
255 if (d != NULL) {
256 BN_free(r->d);
257 r->d = d;
258 }
259
260 return 1;
261}
262LCRYPTO_ALIAS(RSA_set0_key);
263
264void
265RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,
266 const BIGNUM **iqmp)
267{
268 if (dmp1 != NULL)
269 *dmp1 = r->dmp1;
270 if (dmq1 != NULL)
271 *dmq1 = r->dmq1;
272 if (iqmp != NULL)
273 *iqmp = r->iqmp;
274}
275LCRYPTO_ALIAS(RSA_get0_crt_params);
276
277int
278RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp)
279{
280 if ((r->dmp1 == NULL && dmp1 == NULL) ||
281 (r->dmq1 == NULL && dmq1 == NULL) ||
282 (r->iqmp == NULL && iqmp == NULL))
283 return 0;
284
285 if (dmp1 != NULL) {
286 BN_free(r->dmp1);
287 r->dmp1 = dmp1;
288 }
289 if (dmq1 != NULL) {
290 BN_free(r->dmq1);
291 r->dmq1 = dmq1;
292 }
293 if (iqmp != NULL) {
294 BN_free(r->iqmp);
295 r->iqmp = iqmp;
296 }
297
298 return 1;
299}
300LCRYPTO_ALIAS(RSA_set0_crt_params);
301
302void
303RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q)
304{
305 if (p != NULL)
306 *p = r->p;
307 if (q != NULL)
308 *q = r->q;
309}
310LCRYPTO_ALIAS(RSA_get0_factors);
311
312int
313RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q)
314{
315 if ((r->p == NULL && p == NULL) || (r->q == NULL && q == NULL))
316 return 0;
317
318 if (p != NULL) {
319 BN_free(r->p);
320 r->p = p;
321 }
322 if (q != NULL) {
323 BN_free(r->q);
324 r->q = q;
325 }
326
327 return 1;
328}
329LCRYPTO_ALIAS(RSA_set0_factors);
330
331const BIGNUM *
332RSA_get0_n(const RSA *r)
333{
334 return r->n;
335}
336LCRYPTO_ALIAS(RSA_get0_n);
337
338const BIGNUM *
339RSA_get0_e(const RSA *r)
340{
341 return r->e;
342}
343LCRYPTO_ALIAS(RSA_get0_e);
344
345const BIGNUM *
346RSA_get0_d(const RSA *r)
347{
348 return r->d;
349}
350LCRYPTO_ALIAS(RSA_get0_d);
351
352const BIGNUM *
353RSA_get0_p(const RSA *r)
354{
355 return r->p;
356}
357LCRYPTO_ALIAS(RSA_get0_p);
358
359const BIGNUM *
360RSA_get0_q(const RSA *r)
361{
362 return r->q;
363}
364LCRYPTO_ALIAS(RSA_get0_q);
365
366const BIGNUM *
367RSA_get0_dmp1(const RSA *r)
368{
369 return r->dmp1;
370}
371LCRYPTO_ALIAS(RSA_get0_dmp1);
372
373const BIGNUM *
374RSA_get0_dmq1(const RSA *r)
375{
376 return r->dmq1;
377}
378LCRYPTO_ALIAS(RSA_get0_dmq1);
379
380const BIGNUM *
381RSA_get0_iqmp(const RSA *r)
382{
383 return r->iqmp;
384}
385LCRYPTO_ALIAS(RSA_get0_iqmp);
386
387const RSA_PSS_PARAMS *
388RSA_get0_pss_params(const RSA *r)
389{
390 return r->pss;
391}
392LCRYPTO_ALIAS(RSA_get0_pss_params);
393
394void
395RSA_clear_flags(RSA *r, int flags)
396{
397 r->flags &= ~flags;
398}
399LCRYPTO_ALIAS(RSA_clear_flags);
400
401int
402RSA_test_flags(const RSA *r, int flags)
403{
404 return r->flags & flags;
405}
406LCRYPTO_ALIAS(RSA_test_flags);
407
408void
409RSA_set_flags(RSA *r, int flags)
410{
411 r->flags |= flags;
412}
413LCRYPTO_ALIAS(RSA_set_flags);
414
415int
416RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2)
417{
418 /* Return an error if the key type is not RSA or RSA-PSS. */
419 if (ctx != NULL && ctx->pmeth != NULL &&
420 ctx->pmeth->pkey_id != EVP_PKEY_RSA &&
421 ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS)
422 return -1;
423
424 return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, p1, p2);
425}
426LCRYPTO_ALIAS(RSA_pkey_ctx_ctrl);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-12-23 13:29:47 +0000