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2039c421 | 1 | /* |
8686c474 | 2 | * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
2039c421 RS |
4 | * Licensed under the OpenSSL license (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 | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
ec577822 | 11 | #include <openssl/crypto.h> |
b39fc560 | 12 | #include "internal/cryptlib.h" |
cd420b0b | 13 | #include "internal/refcount.h" |
18125f7f | 14 | #include "internal/bn_int.h" |
3c27208f | 15 | #include <openssl/engine.h> |
e5e04ee3 DSH |
16 | #include <openssl/evp.h> |
17 | #include "internal/evp_int.h" | |
9862e9aa | 18 | #include "rsa_locl.h" |
d02b48c6 | 19 | |
6b691a5c | 20 | RSA *RSA_new(void) |
0f113f3e | 21 | { |
076fc555 | 22 | return RSA_new_method(NULL); |
0f113f3e | 23 | } |
ce8b2574 | 24 | |
29c1f061 | 25 | const RSA_METHOD *RSA_get_method(const RSA *rsa) |
0f113f3e MC |
26 | { |
27 | return rsa->meth; | |
28 | } | |
cb78486d GT |
29 | |
30 | int RSA_set_method(RSA *rsa, const RSA_METHOD *meth) | |
0f113f3e MC |
31 | { |
32 | /* | |
33 | * NB: The caller is specifically setting a method, so it's not up to us | |
34 | * to deal with which ENGINE it comes from. | |
35 | */ | |
36 | const RSA_METHOD *mtmp; | |
37 | mtmp = rsa->meth; | |
38 | if (mtmp->finish) | |
39 | mtmp->finish(rsa); | |
0b13e9f0 | 40 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd RS |
41 | ENGINE_finish(rsa->engine); |
42 | rsa->engine = NULL; | |
0b13e9f0 | 43 | #endif |
0f113f3e MC |
44 | rsa->meth = meth; |
45 | if (meth->init) | |
46 | meth->init(rsa); | |
47 | return 1; | |
48 | } | |
ce8b2574 | 49 | |
5270e702 | 50 | RSA *RSA_new_method(ENGINE *engine) |
0f113f3e | 51 | { |
11ed851d | 52 | RSA *ret = OPENSSL_zalloc(sizeof(*ret)); |
d02b48c6 | 53 | |
0f113f3e MC |
54 | if (ret == NULL) { |
55 | RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE); | |
56 | return NULL; | |
57 | } | |
d02b48c6 | 58 | |
11ed851d F |
59 | ret->references = 1; |
60 | ret->lock = CRYPTO_THREAD_lock_new(); | |
61 | if (ret->lock == NULL) { | |
62 | RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE); | |
63 | OPENSSL_free(ret); | |
64 | return NULL; | |
65 | } | |
66 | ||
0f113f3e | 67 | ret->meth = RSA_get_default_method(); |
0b13e9f0 | 68 | #ifndef OPENSSL_NO_ENGINE |
11ed851d | 69 | ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW; |
0f113f3e MC |
70 | if (engine) { |
71 | if (!ENGINE_init(engine)) { | |
72 | RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB); | |
11ed851d | 73 | goto err; |
0f113f3e MC |
74 | } |
75 | ret->engine = engine; | |
90862ab4 | 76 | } else { |
0f113f3e | 77 | ret->engine = ENGINE_get_default_RSA(); |
90862ab4 | 78 | } |
0f113f3e MC |
79 | if (ret->engine) { |
80 | ret->meth = ENGINE_get_RSA(ret->engine); | |
7c96dbcd | 81 | if (ret->meth == NULL) { |
0f113f3e | 82 | RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB); |
11ed851d | 83 | goto err; |
0f113f3e MC |
84 | } |
85 | } | |
0b13e9f0 | 86 | #endif |
0c9de428 | 87 | |
0f113f3e MC |
88 | ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW; |
89 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) { | |
11ed851d | 90 | goto err; |
d188a536 AG |
91 | } |
92 | ||
93 | if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { | |
11ed851d F |
94 | RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_INIT_FAIL); |
95 | goto err; | |
0f113f3e | 96 | } |
d188a536 AG |
97 | |
98 | return ret; | |
11ed851d F |
99 | |
100 | err: | |
101 | RSA_free(ret); | |
102 | return NULL; | |
0f113f3e | 103 | } |
d02b48c6 | 104 | |
6b691a5c | 105 | void RSA_free(RSA *r) |
0f113f3e MC |
106 | { |
107 | int i; | |
d02b48c6 | 108 | |
0f113f3e MC |
109 | if (r == NULL) |
110 | return; | |
d02b48c6 | 111 | |
2f545ae4 | 112 | CRYPTO_DOWN_REF(&r->references, &i, r->lock); |
f3f1cf84 | 113 | REF_PRINT_COUNT("RSA", r); |
0f113f3e MC |
114 | if (i > 0) |
115 | return; | |
f3f1cf84 | 116 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 117 | |
0f113f3e MC |
118 | if (r->meth->finish) |
119 | r->meth->finish(r); | |
0b13e9f0 | 120 | #ifndef OPENSSL_NO_ENGINE |
412bafdc | 121 | ENGINE_finish(r->engine); |
0b13e9f0 | 122 | #endif |
d02b48c6 | 123 | |
0f113f3e | 124 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data); |
7abe8305 | 125 | |
d188a536 AG |
126 | CRYPTO_THREAD_lock_free(r->lock); |
127 | ||
23a1d5e9 RS |
128 | BN_clear_free(r->n); |
129 | BN_clear_free(r->e); | |
130 | BN_clear_free(r->d); | |
131 | BN_clear_free(r->p); | |
132 | BN_clear_free(r->q); | |
133 | BN_clear_free(r->dmp1); | |
134 | BN_clear_free(r->dmq1); | |
135 | BN_clear_free(r->iqmp); | |
d771441d | 136 | RSA_PSS_PARAMS_free(r->pss); |
23a1d5e9 RS |
137 | BN_BLINDING_free(r->blinding); |
138 | BN_BLINDING_free(r->mt_blinding); | |
4c42ebd2 | 139 | OPENSSL_free(r->bignum_data); |
0f113f3e MC |
140 | OPENSSL_free(r); |
141 | } | |
d02b48c6 | 142 | |
6ac4e8bd | 143 | int RSA_up_ref(RSA *r) |
0f113f3e | 144 | { |
d188a536 AG |
145 | int i; |
146 | ||
2f545ae4 | 147 | if (CRYPTO_UP_REF(&r->references, &i, r->lock) <= 0) |
d188a536 | 148 | return 0; |
f3f1cf84 RS |
149 | |
150 | REF_PRINT_COUNT("RSA", r); | |
151 | REF_ASSERT_ISNT(i < 2); | |
8686c474 | 152 | return i > 1 ? 1 : 0; |
0f113f3e | 153 | } |
5cbc2e8b | 154 | |
dd9d233e | 155 | int RSA_set_ex_data(RSA *r, int idx, void *arg) |
0f113f3e | 156 | { |
8686c474 | 157 | return CRYPTO_set_ex_data(&r->ex_data, idx, arg); |
0f113f3e | 158 | } |
58964a49 | 159 | |
29c1f061 | 160 | void *RSA_get_ex_data(const RSA *r, int idx) |
0f113f3e | 161 | { |
8686c474 | 162 | return CRYPTO_get_ex_data(&r->ex_data, idx); |
0f113f3e | 163 | } |
58964a49 | 164 | |
2514fa79 | 165 | int RSA_security_bits(const RSA *rsa) |
0f113f3e MC |
166 | { |
167 | return BN_security_bits(BN_num_bits(rsa->n), -1); | |
168 | } | |
9862e9aa RL |
169 | |
170 | int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) | |
171 | { | |
fd809cfd | 172 | /* If the fields n and e in r are NULL, the corresponding input |
1da12e34 RL |
173 | * parameters MUST be non-NULL for n and e. d may be |
174 | * left NULL (in case only the public key is used). | |
1da12e34 | 175 | */ |
b84e1226 MC |
176 | if ((r->n == NULL && n == NULL) |
177 | || (r->e == NULL && e == NULL)) | |
9862e9aa RL |
178 | return 0; |
179 | ||
1da12e34 RL |
180 | if (n != NULL) { |
181 | BN_free(r->n); | |
182 | r->n = n; | |
183 | } | |
184 | if (e != NULL) { | |
185 | BN_free(r->e); | |
186 | r->e = e; | |
187 | } | |
188 | if (d != NULL) { | |
189 | BN_free(r->d); | |
190 | r->d = d; | |
191 | } | |
9862e9aa RL |
192 | |
193 | return 1; | |
194 | } | |
195 | ||
196 | int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q) | |
197 | { | |
fd809cfd | 198 | /* If the fields p and q in r are NULL, the corresponding input |
1da12e34 | 199 | * parameters MUST be non-NULL. |
1da12e34 | 200 | */ |
b84e1226 MC |
201 | if ((r->p == NULL && p == NULL) |
202 | || (r->q == NULL && q == NULL)) | |
9862e9aa RL |
203 | return 0; |
204 | ||
1da12e34 RL |
205 | if (p != NULL) { |
206 | BN_free(r->p); | |
207 | r->p = p; | |
208 | } | |
209 | if (q != NULL) { | |
210 | BN_free(r->q); | |
211 | r->q = q; | |
212 | } | |
9862e9aa RL |
213 | |
214 | return 1; | |
215 | } | |
216 | ||
217 | int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp) | |
218 | { | |
fd809cfd | 219 | /* If the fields dmp1, dmq1 and iqmp in r are NULL, the corresponding input |
1da12e34 | 220 | * parameters MUST be non-NULL. |
1da12e34 | 221 | */ |
b84e1226 MC |
222 | if ((r->dmp1 == NULL && dmp1 == NULL) |
223 | || (r->dmq1 == NULL && dmq1 == NULL) | |
224 | || (r->iqmp == NULL && iqmp == NULL)) | |
9862e9aa RL |
225 | return 0; |
226 | ||
1da12e34 RL |
227 | if (dmp1 != NULL) { |
228 | BN_free(r->dmp1); | |
229 | r->dmp1 = dmp1; | |
230 | } | |
231 | if (dmq1 != NULL) { | |
232 | BN_free(r->dmq1); | |
233 | r->dmq1 = dmq1; | |
234 | } | |
235 | if (iqmp != NULL) { | |
236 | BN_free(r->iqmp); | |
237 | r->iqmp = iqmp; | |
238 | } | |
9862e9aa RL |
239 | |
240 | return 1; | |
241 | } | |
242 | ||
fd809cfd RL |
243 | void RSA_get0_key(const RSA *r, |
244 | const BIGNUM **n, const BIGNUM **e, const BIGNUM **d) | |
9862e9aa RL |
245 | { |
246 | if (n != NULL) | |
247 | *n = r->n; | |
248 | if (e != NULL) | |
249 | *e = r->e; | |
250 | if (d != NULL) | |
251 | *d = r->d; | |
252 | } | |
253 | ||
fd809cfd | 254 | void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q) |
9862e9aa RL |
255 | { |
256 | if (p != NULL) | |
257 | *p = r->p; | |
258 | if (q != NULL) | |
259 | *q = r->q; | |
260 | } | |
261 | ||
262 | void RSA_get0_crt_params(const RSA *r, | |
fd809cfd RL |
263 | const BIGNUM **dmp1, const BIGNUM **dmq1, |
264 | const BIGNUM **iqmp) | |
9862e9aa RL |
265 | { |
266 | if (dmp1 != NULL) | |
267 | *dmp1 = r->dmp1; | |
268 | if (dmq1 != NULL) | |
269 | *dmq1 = r->dmq1; | |
270 | if (iqmp != NULL) | |
271 | *iqmp = r->iqmp; | |
272 | } | |
273 | ||
274 | void RSA_clear_flags(RSA *r, int flags) | |
275 | { | |
276 | r->flags &= ~flags; | |
277 | } | |
278 | ||
279 | int RSA_test_flags(const RSA *r, int flags) | |
280 | { | |
281 | return r->flags & flags; | |
282 | } | |
283 | ||
284 | void RSA_set_flags(RSA *r, int flags) | |
285 | { | |
286 | r->flags |= flags; | |
287 | } | |
288 | ||
e0685d24 | 289 | ENGINE *RSA_get0_engine(const RSA *r) |
9862e9aa RL |
290 | { |
291 | return r->engine; | |
292 | } | |
e5e04ee3 DSH |
293 | |
294 | int RSA_pkey_ctx_ctrl(EVP_PKEY_CTX *ctx, int optype, int cmd, int p1, void *p2) | |
295 | { | |
296 | /* If key type not RSA or RSA-PSS return error */ | |
297 | if (ctx != NULL && ctx->pmeth != NULL | |
298 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA | |
299 | && ctx->pmeth->pkey_id != EVP_PKEY_RSA_PSS) | |
300 | return -1; | |
301 | return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, p1, p2); | |
302 | } |