1/*
2 * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <string.h>
11#include "rsa_local.h"
12#include <openssl/err.h>
13
14RSA_METHOD *RSA_meth_new(const char *name, int flags)
15{
16 RSA_METHOD *meth = OPENSSL_zalloc(sizeof(*meth));
17
18 if (meth != NULL) {
19 meth->flags = flags;
20
21 meth->name = OPENSSL_strdup(name);
22 if (meth->name != NULL)
23 return meth;
24
25 OPENSSL_free(meth);
26 }
27
28 RSAerr(RSA_F_RSA_METH_NEW, ERR_R_MALLOC_FAILURE);
29 return NULL;
30}
31
32void RSA_meth_free(RSA_METHOD *meth)
33{
34 if (meth != NULL) {
35 OPENSSL_free(meth->name);
36 OPENSSL_free(meth);
37 }
38}
39
40RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth)
41{
42 RSA_METHOD *ret = OPENSSL_malloc(sizeof(*ret));
43
44 if (ret != NULL) {
45 memcpy(ret, meth, sizeof(*meth));
46
47 ret->name = OPENSSL_strdup(meth->name);
48 if (ret->name != NULL)
49 return ret;
50
51 OPENSSL_free(ret);
52 }
53
54 RSAerr(RSA_F_RSA_METH_DUP, ERR_R_MALLOC_FAILURE);
55 return NULL;
56}
57
58const char *RSA_meth_get0_name(const RSA_METHOD *meth)
59{
60 return meth->name;
61}
62
63int RSA_meth_set1_name(RSA_METHOD *meth, const char *name)
64{
65 char *tmpname = OPENSSL_strdup(name);
66
67 if (tmpname == NULL) {
68 RSAerr(RSA_F_RSA_METH_SET1_NAME, ERR_R_MALLOC_FAILURE);
69 return 0;
70 }
71
72 OPENSSL_free(meth->name);
73 meth->name = tmpname;
74
75 return 1;
76}
77
78int RSA_meth_get_flags(const RSA_METHOD *meth)
79{
80 return meth->flags;
81}
82
83int RSA_meth_set_flags(RSA_METHOD *meth, int flags)
84{
85 meth->flags = flags;
86 return 1;
87}
88
89void *RSA_meth_get0_app_data(const RSA_METHOD *meth)
90{
91 return meth->app_data;
92}
93
94int RSA_meth_set0_app_data(RSA_METHOD *meth, void *app_data)
95{
96 meth->app_data = app_data;
97 return 1;
98}
99
100int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth))
101 (int flen, const unsigned char *from,
102 unsigned char *to, RSA *rsa, int padding)
103{
104 return meth->rsa_pub_enc;
105}
106
107int RSA_meth_set_pub_enc(RSA_METHOD *meth,
108 int (*pub_enc) (int flen, const unsigned char *from,
109 unsigned char *to, RSA *rsa,
110 int padding))
111{
112 meth->rsa_pub_enc = pub_enc;
113 return 1;
114}
115
116int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth))
117 (int flen, const unsigned char *from,
118 unsigned char *to, RSA *rsa, int padding)
119{
120 return meth->rsa_pub_dec;
121}
122
123int RSA_meth_set_pub_dec(RSA_METHOD *meth,
124 int (*pub_dec) (int flen, const unsigned char *from,
125 unsigned char *to, RSA *rsa,
126 int padding))
127{
128 meth->rsa_pub_dec = pub_dec;
129 return 1;
130}
131
132int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth))
133 (int flen, const unsigned char *from,
134 unsigned char *to, RSA *rsa, int padding)
135{
136 return meth->rsa_priv_enc;
137}
138
139int RSA_meth_set_priv_enc(RSA_METHOD *meth,
140 int (*priv_enc) (int flen, const unsigned char *from,
141 unsigned char *to, RSA *rsa,
142 int padding))
143{
144 meth->rsa_priv_enc = priv_enc;
145 return 1;
146}
147
148int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth))
149 (int flen, const unsigned char *from,
150 unsigned char *to, RSA *rsa, int padding)
151{
152 return meth->rsa_priv_dec;
153}
154
155int RSA_meth_set_priv_dec(RSA_METHOD *meth,
156 int (*priv_dec) (int flen, const unsigned char *from,
157 unsigned char *to, RSA *rsa,
158 int padding))
159{
160 meth->rsa_priv_dec = priv_dec;
161 return 1;
162}
163
164 /* Can be null */
165int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth))
166 (BIGNUM *r0, const BIGNUM *i, RSA *rsa, BN_CTX *ctx)
167{
168 return meth->rsa_mod_exp;
169}
170
171int RSA_meth_set_mod_exp(RSA_METHOD *meth,
172 int (*mod_exp) (BIGNUM *r0, const BIGNUM *i, RSA *rsa,
173 BN_CTX *ctx))
174{
175 meth->rsa_mod_exp = mod_exp;
176 return 1;
177}
178
179 /* Can be null */
180int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth))
181 (BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
182 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
183{
184 return meth->bn_mod_exp;
185}
186
187int RSA_meth_set_bn_mod_exp(RSA_METHOD *meth,
188 int (*bn_mod_exp) (BIGNUM *r,
189 const BIGNUM *a,
190 const BIGNUM *p,
191 const BIGNUM *m,
192 BN_CTX *ctx,
193 BN_MONT_CTX *m_ctx))
194{
195 meth->bn_mod_exp = bn_mod_exp;
196 return 1;
197}
198
199 /* called at new */
200int (*RSA_meth_get_init(const RSA_METHOD *meth)) (RSA *rsa)
201{
202 return meth->init;
203}
204
205int RSA_meth_set_init(RSA_METHOD *meth, int (*init) (RSA *rsa))
206{
207 meth->init = init;
208 return 1;
209}
210
211 /* called at free */
212int (*RSA_meth_get_finish(const RSA_METHOD *meth)) (RSA *rsa)
213{
214 return meth->finish;
215}
216
217int RSA_meth_set_finish(RSA_METHOD *meth, int (*finish) (RSA *rsa))
218{
219 meth->finish = finish;
220 return 1;
221}
222
223int (*RSA_meth_get_sign(const RSA_METHOD *meth))
224 (int type,
225 const unsigned char *m, unsigned int m_length,
226 unsigned char *sigret, unsigned int *siglen,
227 const RSA *rsa)
228{
229 return meth->rsa_sign;
230}
231
232int RSA_meth_set_sign(RSA_METHOD *meth,
233 int (*sign) (int type, const unsigned char *m,
234 unsigned int m_length,
235 unsigned char *sigret, unsigned int *siglen,
236 const RSA *rsa))
237{
238 meth->rsa_sign = sign;
239 return 1;
240}
241
242int (*RSA_meth_get_verify(const RSA_METHOD *meth))
243 (int dtype, const unsigned char *m,
244 unsigned int m_length, const unsigned char *sigbuf,
245 unsigned int siglen, const RSA *rsa)
246{
247 return meth->rsa_verify;
248}
249
250int RSA_meth_set_verify(RSA_METHOD *meth,
251 int (*verify) (int dtype, const unsigned char *m,
252 unsigned int m_length,
253 const unsigned char *sigbuf,
254 unsigned int siglen, const RSA *rsa))
255{
256 meth->rsa_verify = verify;
257 return 1;
258}
259
260int (*RSA_meth_get_keygen(const RSA_METHOD *meth))
261 (RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb)
262{
263 return meth->rsa_keygen;
264}
265
266int RSA_meth_set_keygen(RSA_METHOD *meth,
267 int (*keygen) (RSA *rsa, int bits, BIGNUM *e,
268 BN_GENCB *cb))
269{
270 meth->rsa_keygen = keygen;
271 return 1;
272}
273
274int (*RSA_meth_get_multi_prime_keygen(const RSA_METHOD *meth))
275 (RSA *rsa, int bits, int primes, BIGNUM *e, BN_GENCB *cb)
276{
277 return meth->rsa_multi_prime_keygen;
278}
279
280int RSA_meth_set_multi_prime_keygen(RSA_METHOD *meth,
281 int (*keygen) (RSA *rsa, int bits,
282 int primes, BIGNUM *e,
283 BN_GENCB *cb))
284{
285 meth->rsa_multi_prime_keygen = keygen;
286 return 1;
287}
288