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6f4b7663 | 1 | /* |
33388b44 | 2 | * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved. |
6f4b7663 RL |
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 | /* | |
11 | * RSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
bbde8566 | 16 | #include "e_os.h" /* strcasecmp */ |
6f4b7663 RL |
17 | #include <string.h> |
18 | #include <openssl/crypto.h> | |
23c48d94 | 19 | #include <openssl/core_dispatch.h> |
6f4b7663 RL |
20 | #include <openssl/core_names.h> |
21 | #include <openssl/err.h> | |
22 | #include <openssl/rsa.h> | |
23 | #include <openssl/params.h> | |
24 | #include <openssl/evp.h> | |
2741128e | 25 | #include <openssl/proverr.h> |
6f4b7663 RL |
26 | #include "internal/cryptlib.h" |
27 | #include "internal/nelem.h" | |
28 | #include "internal/sizes.h" | |
29 | #include "crypto/rsa.h" | |
f590a5ea | 30 | #include "prov/providercommon.h" |
6f4b7663 RL |
31 | #include "prov/implementations.h" |
32 | #include "prov/provider_ctx.h" | |
6f5837dc | 33 | #include "prov/der_rsa.h" |
7a810fac | 34 | #include "prov/securitycheck.h" |
3f699197 SL |
35 | |
36 | #define RSA_DEFAULT_DIGEST_NAME OSSL_DIGEST_NAME_SHA1 | |
6f4b7663 | 37 | |
363b1e5d DMSP |
38 | static OSSL_FUNC_signature_newctx_fn rsa_newctx; |
39 | static OSSL_FUNC_signature_sign_init_fn rsa_sign_init; | |
40 | static OSSL_FUNC_signature_verify_init_fn rsa_verify_init; | |
41 | static OSSL_FUNC_signature_verify_recover_init_fn rsa_verify_recover_init; | |
42 | static OSSL_FUNC_signature_sign_fn rsa_sign; | |
43 | static OSSL_FUNC_signature_verify_fn rsa_verify; | |
44 | static OSSL_FUNC_signature_verify_recover_fn rsa_verify_recover; | |
45 | static OSSL_FUNC_signature_digest_sign_init_fn rsa_digest_sign_init; | |
46 | static OSSL_FUNC_signature_digest_sign_update_fn rsa_digest_signverify_update; | |
47 | static OSSL_FUNC_signature_digest_sign_final_fn rsa_digest_sign_final; | |
48 | static OSSL_FUNC_signature_digest_verify_init_fn rsa_digest_verify_init; | |
49 | static OSSL_FUNC_signature_digest_verify_update_fn rsa_digest_signverify_update; | |
50 | static OSSL_FUNC_signature_digest_verify_final_fn rsa_digest_verify_final; | |
51 | static OSSL_FUNC_signature_freectx_fn rsa_freectx; | |
52 | static OSSL_FUNC_signature_dupctx_fn rsa_dupctx; | |
53 | static OSSL_FUNC_signature_get_ctx_params_fn rsa_get_ctx_params; | |
54 | static OSSL_FUNC_signature_gettable_ctx_params_fn rsa_gettable_ctx_params; | |
55 | static OSSL_FUNC_signature_set_ctx_params_fn rsa_set_ctx_params; | |
56 | static OSSL_FUNC_signature_settable_ctx_params_fn rsa_settable_ctx_params; | |
57 | static OSSL_FUNC_signature_get_ctx_md_params_fn rsa_get_ctx_md_params; | |
58 | static OSSL_FUNC_signature_gettable_ctx_md_params_fn rsa_gettable_ctx_md_params; | |
59 | static OSSL_FUNC_signature_set_ctx_md_params_fn rsa_set_ctx_md_params; | |
60 | static OSSL_FUNC_signature_settable_ctx_md_params_fn rsa_settable_ctx_md_params; | |
6f4b7663 RL |
61 | |
62 | static OSSL_ITEM padding_item[] = { | |
b8086652 SL |
63 | { RSA_PKCS1_PADDING, OSSL_PKEY_RSA_PAD_MODE_PKCSV15 }, |
64 | { RSA_SSLV23_PADDING, OSSL_PKEY_RSA_PAD_MODE_SSLV23 }, | |
65 | { RSA_NO_PADDING, OSSL_PKEY_RSA_PAD_MODE_NONE }, | |
66 | { RSA_X931_PADDING, OSSL_PKEY_RSA_PAD_MODE_X931 }, | |
67 | { RSA_PKCS1_PSS_PADDING, OSSL_PKEY_RSA_PAD_MODE_PSS }, | |
6f4b7663 RL |
68 | { 0, NULL } |
69 | }; | |
70 | ||
71 | /* | |
72 | * What's passed as an actual key is defined by the KEYMGMT interface. | |
73 | * We happen to know that our KEYMGMT simply passes RSA structures, so | |
74 | * we use that here too. | |
75 | */ | |
76 | ||
77 | typedef struct { | |
b4250010 | 78 | OSSL_LIB_CTX *libctx; |
2c6094ba | 79 | char *propq; |
6f4b7663 | 80 | RSA *rsa; |
0ec36bf1 | 81 | int operation; |
6f4b7663 RL |
82 | |
83 | /* | |
84 | * Flag to determine if the hash function can be changed (1) or not (0) | |
85 | * Because it's dangerous to change during a DigestSign or DigestVerify | |
86 | * operation, this flag is cleared by their Init function, and set again | |
87 | * by their Final function. | |
88 | */ | |
89 | unsigned int flag_allow_md : 1; | |
bbde8566 | 90 | unsigned int mgf1_md_set : 1; |
6f4b7663 RL |
91 | |
92 | /* main digest */ | |
93 | EVP_MD *md; | |
94 | EVP_MD_CTX *mdctx; | |
95 | int mdnid; | |
96 | char mdname[OSSL_MAX_NAME_SIZE]; /* Purely informational */ | |
97 | ||
98 | /* RSA padding mode */ | |
99 | int pad_mode; | |
100 | /* message digest for MGF1 */ | |
101 | EVP_MD *mgf1_md; | |
bbde8566 | 102 | int mgf1_mdnid; |
6f4b7663 RL |
103 | char mgf1_mdname[OSSL_MAX_NAME_SIZE]; /* Purely informational */ |
104 | /* PSS salt length */ | |
105 | int saltlen; | |
106 | /* Minimum salt length or -1 if no PSS parameter restriction */ | |
107 | int min_saltlen; | |
108 | ||
109 | /* Temp buffer */ | |
110 | unsigned char *tbuf; | |
111 | ||
112 | } PROV_RSA_CTX; | |
113 | ||
bbde8566 TM |
114 | /* True if PSS parameters are restricted */ |
115 | #define rsa_pss_restricted(prsactx) (prsactx->min_saltlen != -1) | |
116 | ||
6f4b7663 RL |
117 | static size_t rsa_get_md_size(const PROV_RSA_CTX *prsactx) |
118 | { | |
119 | if (prsactx->md != NULL) | |
120 | return EVP_MD_size(prsactx->md); | |
121 | return 0; | |
122 | } | |
123 | ||
bbde8566 TM |
124 | static int rsa_check_padding(const PROV_RSA_CTX *prsactx, |
125 | const char *mdname, const char *mgf1_mdname, | |
126 | int mdnid) | |
6f4b7663 | 127 | { |
bbde8566 TM |
128 | switch(prsactx->pad_mode) { |
129 | case RSA_NO_PADDING: | |
130 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_PADDING_MODE); | |
6f4b7663 | 131 | return 0; |
bbde8566 TM |
132 | case RSA_X931_PADDING: |
133 | if (RSA_X931_hash_id(mdnid) == -1) { | |
134 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_X931_DIGEST); | |
135 | return 0; | |
136 | } | |
137 | break; | |
138 | case RSA_PKCS1_PSS_PADDING: | |
139 | if (rsa_pss_restricted(prsactx)) | |
140 | if ((mdname != NULL && !EVP_MD_is_a(prsactx->md, mdname)) | |
141 | || (mgf1_mdname != NULL | |
142 | && !EVP_MD_is_a(prsactx->mgf1_md, mgf1_mdname))) { | |
143 | ERR_raise(ERR_LIB_PROV, PROV_R_DIGEST_NOT_ALLOWED); | |
144 | return 0; | |
145 | } | |
146 | break; | |
147 | default: | |
148 | break; | |
6f4b7663 RL |
149 | } |
150 | ||
151 | return 1; | |
152 | } | |
153 | ||
bbde8566 | 154 | static int rsa_check_parameters(PROV_RSA_CTX *prsactx, int min_saltlen) |
2d553660 RL |
155 | { |
156 | if (prsactx->pad_mode == RSA_PKCS1_PSS_PADDING) { | |
157 | int max_saltlen; | |
158 | ||
159 | /* See if minimum salt length exceeds maximum possible */ | |
6ce6ad39 | 160 | max_saltlen = RSA_size(prsactx->rsa) - EVP_MD_size(prsactx->md); |
2d553660 RL |
161 | if ((RSA_bits(prsactx->rsa) & 0x7) == 1) |
162 | max_saltlen--; | |
bbde8566 | 163 | if (min_saltlen < 0 || min_saltlen > max_saltlen) { |
2d553660 RL |
164 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_SALT_LENGTH); |
165 | return 0; | |
166 | } | |
bbde8566 | 167 | prsactx->min_saltlen = min_saltlen; |
2d553660 RL |
168 | } |
169 | return 1; | |
170 | } | |
171 | ||
2c6094ba | 172 | static void *rsa_newctx(void *provctx, const char *propq) |
6f4b7663 | 173 | { |
2d553660 RL |
174 | PROV_RSA_CTX *prsactx = NULL; |
175 | char *propq_copy = NULL; | |
6f4b7663 | 176 | |
f590a5ea P |
177 | if (!ossl_prov_is_running()) |
178 | return NULL; | |
179 | ||
2d553660 RL |
180 | if ((prsactx = OPENSSL_zalloc(sizeof(PROV_RSA_CTX))) == NULL |
181 | || (propq != NULL | |
182 | && (propq_copy = OPENSSL_strdup(propq)) == NULL)) { | |
183 | OPENSSL_free(prsactx); | |
184 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
6f4b7663 | 185 | return NULL; |
2d553660 | 186 | } |
6f4b7663 | 187 | |
a829b735 | 188 | prsactx->libctx = PROV_LIBCTX_OF(provctx); |
6f4b7663 | 189 | prsactx->flag_allow_md = 1; |
2d553660 | 190 | prsactx->propq = propq_copy; |
6f4b7663 RL |
191 | return prsactx; |
192 | } | |
193 | ||
bbde8566 TM |
194 | static int rsa_pss_compute_saltlen(PROV_RSA_CTX *ctx) |
195 | { | |
196 | int saltlen = ctx->saltlen; | |
197 | ||
198 | if (saltlen == RSA_PSS_SALTLEN_DIGEST) { | |
199 | saltlen = EVP_MD_size(ctx->md); | |
200 | } else if (saltlen == RSA_PSS_SALTLEN_AUTO || saltlen == RSA_PSS_SALTLEN_MAX) { | |
201 | saltlen = RSA_size(ctx->rsa) - EVP_MD_size(ctx->md) - 2; | |
202 | if ((RSA_bits(ctx->rsa) & 0x7) == 1) | |
203 | saltlen--; | |
204 | } | |
205 | if (saltlen < 0) { | |
206 | ERR_raise(ERR_LIB_PROV, ERR_R_INTERNAL_ERROR); | |
207 | return -1; | |
208 | } else if (saltlen < ctx->min_saltlen) { | |
209 | ERR_raise_data(ERR_LIB_PROV, PROV_R_PSS_SALTLEN_TOO_SMALL, | |
210 | "minimum salt length: %d, actual salt length: %d", | |
211 | ctx->min_saltlen, saltlen); | |
212 | return -1; | |
213 | } | |
214 | return saltlen; | |
215 | } | |
216 | ||
217 | static unsigned char *rsa_generate_signature_aid(PROV_RSA_CTX *ctx, | |
218 | unsigned char *aid_buf, | |
219 | size_t buf_len, | |
220 | size_t *aid_len) | |
221 | { | |
222 | WPACKET pkt; | |
223 | unsigned char *aid = NULL; | |
224 | int saltlen; | |
225 | RSA_PSS_PARAMS_30 pss_params; | |
226 | ||
227 | if (!WPACKET_init_der(&pkt, aid_buf, buf_len)) { | |
228 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
229 | return NULL; | |
230 | } | |
231 | ||
232 | switch(ctx->pad_mode) { | |
233 | case RSA_PKCS1_PADDING: | |
234 | if (!ossl_DER_w_algorithmIdentifier_MDWithRSAEncryption(&pkt, -1, | |
235 | ctx->mdnid)) { | |
236 | ERR_raise(ERR_LIB_PROV, ERR_R_INTERNAL_ERROR); | |
237 | goto cleanup; | |
238 | } | |
239 | break; | |
240 | case RSA_PKCS1_PSS_PADDING: | |
241 | saltlen = rsa_pss_compute_saltlen(ctx); | |
242 | if (saltlen < 0) | |
243 | goto cleanup; | |
244 | if (!ossl_rsa_pss_params_30_set_defaults(&pss_params) | |
245 | || !ossl_rsa_pss_params_30_set_hashalg(&pss_params, ctx->mdnid) | |
246 | || !ossl_rsa_pss_params_30_set_maskgenhashalg(&pss_params, | |
247 | ctx->mgf1_mdnid) | |
248 | || !ossl_rsa_pss_params_30_set_saltlen(&pss_params, saltlen) | |
249 | || !ossl_DER_w_algorithmIdentifier_RSA_PSS(&pkt, -1, | |
250 | RSA_FLAG_TYPE_RSASSAPSS, | |
251 | &pss_params)) { | |
252 | ERR_raise(ERR_LIB_PROV, ERR_R_INTERNAL_ERROR); | |
253 | goto cleanup; | |
254 | } | |
255 | break; | |
256 | default: | |
257 | ERR_raise_data(ERR_LIB_PROV, ERR_R_UNSUPPORTED, | |
258 | "Algorithm ID generation"); | |
259 | goto cleanup; | |
260 | } | |
261 | if (WPACKET_finish(&pkt)) { | |
262 | WPACKET_get_total_written(&pkt, aid_len); | |
263 | aid = WPACKET_get_curr(&pkt); | |
264 | } | |
265 | cleanup: | |
266 | WPACKET_cleanup(&pkt); | |
267 | return aid; | |
268 | } | |
6f4b7663 | 269 | |
6f4b7663 RL |
270 | static int rsa_setup_md(PROV_RSA_CTX *ctx, const char *mdname, |
271 | const char *mdprops) | |
272 | { | |
2c6094ba RL |
273 | if (mdprops == NULL) |
274 | mdprops = ctx->propq; | |
275 | ||
6f4b7663 | 276 | if (mdname != NULL) { |
3f699197 | 277 | EVP_MD *md = EVP_MD_fetch(ctx->libctx, mdname, mdprops); |
49ed5ba8 SL |
278 | int sha1_allowed = (ctx->operation != EVP_PKEY_OP_SIGN); |
279 | int md_nid = digest_rsa_sign_get_md_nid(md, sha1_allowed); | |
2de64666 | 280 | size_t mdname_len = strlen(mdname); |
6f4b7663 | 281 | |
6f5837dc RL |
282 | if (md == NULL |
283 | || md_nid == NID_undef | |
bbde8566 | 284 | || !rsa_check_padding(ctx, mdname, NULL, md_nid) |
2de64666 | 285 | || mdname_len >= sizeof(ctx->mdname)) { |
2d553660 RL |
286 | if (md == NULL) |
287 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, | |
288 | "%s could not be fetched", mdname); | |
289 | if (md_nid == NID_undef) | |
290 | ERR_raise_data(ERR_LIB_PROV, PROV_R_DIGEST_NOT_ALLOWED, | |
291 | "digest=%s", mdname); | |
2de64666 NT |
292 | if (mdname_len >= sizeof(ctx->mdname)) |
293 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, | |
294 | "%s exceeds name buffer length", mdname); | |
6f4b7663 RL |
295 | EVP_MD_free(md); |
296 | return 0; | |
297 | } | |
298 | ||
bbde8566 TM |
299 | if (!ctx->mgf1_md_set) { |
300 | if (!EVP_MD_up_ref(md)) { | |
301 | EVP_MD_free(md); | |
302 | return 0; | |
303 | } | |
304 | EVP_MD_free(ctx->mgf1_md); | |
305 | ctx->mgf1_md = md; | |
306 | ctx->mgf1_mdnid = md_nid; | |
307 | OPENSSL_strlcpy(ctx->mgf1_mdname, mdname, sizeof(ctx->mgf1_mdname)); | |
308 | } | |
309 | ||
6f4b7663 RL |
310 | EVP_MD_CTX_free(ctx->mdctx); |
311 | EVP_MD_free(ctx->md); | |
6f4b7663 | 312 | |
6f5837dc | 313 | ctx->mdctx = NULL; |
6f4b7663 RL |
314 | ctx->md = md; |
315 | ctx->mdnid = md_nid; | |
316 | OPENSSL_strlcpy(ctx->mdname, mdname, sizeof(ctx->mdname)); | |
6f4b7663 RL |
317 | } |
318 | ||
319 | return 1; | |
320 | } | |
321 | ||
322 | static int rsa_setup_mgf1_md(PROV_RSA_CTX *ctx, const char *mdname, | |
2c6094ba | 323 | const char *mdprops) |
6f4b7663 | 324 | { |
2de64666 | 325 | size_t len; |
3f699197 | 326 | EVP_MD *md = NULL; |
bbde8566 | 327 | int mdnid; |
2de64666 | 328 | |
2c6094ba RL |
329 | if (mdprops == NULL) |
330 | mdprops = ctx->propq; | |
331 | ||
3f699197 | 332 | if ((md = EVP_MD_fetch(ctx->libctx, mdname, mdprops)) == NULL) { |
2d553660 RL |
333 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, |
334 | "%s could not be fetched", mdname); | |
6f4b7663 | 335 | return 0; |
2d553660 | 336 | } |
49ed5ba8 | 337 | /* The default for mgf1 is SHA1 - so allow SHA1 */ |
bbde8566 TM |
338 | if ((mdnid = digest_rsa_sign_get_md_nid(md, 1)) == NID_undef |
339 | || !rsa_check_padding(ctx, NULL, mdname, mdnid)) { | |
340 | if (mdnid == NID_undef) | |
341 | ERR_raise_data(ERR_LIB_PROV, PROV_R_DIGEST_NOT_ALLOWED, | |
342 | "digest=%s", mdname); | |
3f699197 SL |
343 | EVP_MD_free(md); |
344 | return 0; | |
345 | } | |
2de64666 NT |
346 | len = OPENSSL_strlcpy(ctx->mgf1_mdname, mdname, sizeof(ctx->mgf1_mdname)); |
347 | if (len >= sizeof(ctx->mgf1_mdname)) { | |
348 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, | |
349 | "%s exceeds name buffer length", mdname); | |
bbde8566 | 350 | EVP_MD_free(md); |
2de64666 NT |
351 | return 0; |
352 | } | |
6f4b7663 | 353 | |
bbde8566 TM |
354 | EVP_MD_free(ctx->mgf1_md); |
355 | ctx->mgf1_md = md; | |
356 | ctx->mgf1_mdnid = mdnid; | |
357 | ctx->mgf1_md_set = 1; | |
6f4b7663 RL |
358 | return 1; |
359 | } | |
360 | ||
3f699197 | 361 | static int rsa_signverify_init(void *vprsactx, void *vrsa, int operation) |
2d553660 RL |
362 | { |
363 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
364 | ||
f590a5ea P |
365 | if (!ossl_prov_is_running()) |
366 | return 0; | |
367 | ||
2d553660 RL |
368 | if (prsactx == NULL || vrsa == NULL || !RSA_up_ref(vrsa)) |
369 | return 0; | |
370 | ||
371 | RSA_free(prsactx->rsa); | |
372 | prsactx->rsa = vrsa; | |
373 | prsactx->operation = operation; | |
374 | ||
23b2fc0b | 375 | if (!ossl_rsa_check_key(vrsa, operation == EVP_PKEY_OP_SIGN)) { |
3f699197 SL |
376 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH); |
377 | return 0; | |
378 | } | |
379 | ||
2d553660 RL |
380 | /* Maximum for sign, auto for verify */ |
381 | prsactx->saltlen = RSA_PSS_SALTLEN_AUTO; | |
382 | prsactx->min_saltlen = -1; | |
383 | ||
384 | switch (RSA_test_flags(prsactx->rsa, RSA_FLAG_TYPE_MASK)) { | |
385 | case RSA_FLAG_TYPE_RSA: | |
386 | prsactx->pad_mode = RSA_PKCS1_PADDING; | |
387 | break; | |
388 | case RSA_FLAG_TYPE_RSASSAPSS: | |
389 | prsactx->pad_mode = RSA_PKCS1_PSS_PADDING; | |
390 | ||
391 | { | |
392 | const RSA_PSS_PARAMS_30 *pss = | |
23b2fc0b | 393 | ossl_rsa_get0_pss_params_30(prsactx->rsa); |
2d553660 | 394 | |
23b2fc0b P |
395 | if (!ossl_rsa_pss_params_30_is_unrestricted(pss)) { |
396 | int md_nid = ossl_rsa_pss_params_30_hashalg(pss); | |
397 | int mgf1md_nid = ossl_rsa_pss_params_30_maskgenhashalg(pss); | |
398 | int min_saltlen = ossl_rsa_pss_params_30_saltlen(pss); | |
2d553660 | 399 | const char *mdname, *mgf1mdname; |
2de64666 | 400 | size_t len; |
2d553660 | 401 | |
23b2fc0b P |
402 | mdname = ossl_rsa_oaeppss_nid2name(md_nid); |
403 | mgf1mdname = ossl_rsa_oaeppss_nid2name(mgf1md_nid); | |
2d553660 RL |
404 | |
405 | if (mdname == NULL) { | |
406 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, | |
407 | "PSS restrictions lack hash algorithm"); | |
408 | return 0; | |
409 | } | |
410 | if (mgf1mdname == NULL) { | |
411 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, | |
412 | "PSS restrictions lack MGF1 hash algorithm"); | |
413 | return 0; | |
414 | } | |
415 | ||
2de64666 NT |
416 | len = OPENSSL_strlcpy(prsactx->mdname, mdname, |
417 | sizeof(prsactx->mdname)); | |
418 | if (len >= sizeof(prsactx->mdname)) { | |
419 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, | |
420 | "hash algorithm name too long"); | |
421 | return 0; | |
422 | } | |
423 | len = OPENSSL_strlcpy(prsactx->mgf1_mdname, mgf1mdname, | |
424 | sizeof(prsactx->mgf1_mdname)); | |
425 | if (len >= sizeof(prsactx->mgf1_mdname)) { | |
426 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST, | |
427 | "MGF1 hash algorithm name too long"); | |
428 | return 0; | |
429 | } | |
2d553660 RL |
430 | prsactx->saltlen = min_saltlen; |
431 | ||
bbde8566 TM |
432 | /* call rsa_setup_mgf1_md before rsa_setup_md to avoid duplication */ |
433 | return rsa_setup_mgf1_md(prsactx, mgf1mdname, prsactx->propq) | |
434 | && rsa_setup_md(prsactx, mdname, prsactx->propq) | |
435 | && rsa_check_parameters(prsactx, min_saltlen); | |
2d553660 RL |
436 | } |
437 | } | |
438 | ||
439 | break; | |
440 | default: | |
441 | ERR_raise(ERR_LIB_RSA, PROV_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
442 | return 0; | |
443 | } | |
444 | ||
445 | return 1; | |
446 | } | |
447 | ||
6f4b7663 RL |
448 | static int setup_tbuf(PROV_RSA_CTX *ctx) |
449 | { | |
450 | if (ctx->tbuf != NULL) | |
451 | return 1; | |
452 | if ((ctx->tbuf = OPENSSL_malloc(RSA_size(ctx->rsa))) == NULL) { | |
453 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
454 | return 0; | |
455 | } | |
456 | return 1; | |
457 | } | |
458 | ||
459 | static void clean_tbuf(PROV_RSA_CTX *ctx) | |
460 | { | |
461 | if (ctx->tbuf != NULL) | |
462 | OPENSSL_cleanse(ctx->tbuf, RSA_size(ctx->rsa)); | |
463 | } | |
464 | ||
465 | static void free_tbuf(PROV_RSA_CTX *ctx) | |
466 | { | |
2d553660 RL |
467 | clean_tbuf(ctx); |
468 | OPENSSL_free(ctx->tbuf); | |
6f4b7663 RL |
469 | ctx->tbuf = NULL; |
470 | } | |
471 | ||
0ec36bf1 RL |
472 | static int rsa_sign_init(void *vprsactx, void *vrsa) |
473 | { | |
f590a5ea P |
474 | if (!ossl_prov_is_running()) |
475 | return 0; | |
3f699197 | 476 | return rsa_signverify_init(vprsactx, vrsa, EVP_PKEY_OP_SIGN); |
0ec36bf1 RL |
477 | } |
478 | ||
6f4b7663 RL |
479 | static int rsa_sign(void *vprsactx, unsigned char *sig, size_t *siglen, |
480 | size_t sigsize, const unsigned char *tbs, size_t tbslen) | |
481 | { | |
482 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
483 | int ret; | |
484 | size_t rsasize = RSA_size(prsactx->rsa); | |
485 | size_t mdsize = rsa_get_md_size(prsactx); | |
486 | ||
f590a5ea P |
487 | if (!ossl_prov_is_running()) |
488 | return 0; | |
489 | ||
6f4b7663 RL |
490 | if (sig == NULL) { |
491 | *siglen = rsasize; | |
492 | return 1; | |
493 | } | |
494 | ||
2d553660 RL |
495 | if (sigsize < rsasize) { |
496 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_SIGNATURE_SIZE, | |
497 | "is %zu, should be at least %zu", sigsize, rsasize); | |
6f4b7663 | 498 | return 0; |
2d553660 | 499 | } |
6f4b7663 RL |
500 | |
501 | if (mdsize != 0) { | |
502 | if (tbslen != mdsize) { | |
503 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST_LENGTH); | |
504 | return 0; | |
505 | } | |
506 | ||
f844f9eb | 507 | #ifndef FIPS_MODULE |
6f4b7663 RL |
508 | if (EVP_MD_is_a(prsactx->md, OSSL_DIGEST_NAME_MDC2)) { |
509 | unsigned int sltmp; | |
510 | ||
511 | if (prsactx->pad_mode != RSA_PKCS1_PADDING) { | |
512 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_PADDING_MODE, | |
513 | "only PKCS#1 padding supported with MDC2"); | |
514 | return 0; | |
515 | } | |
516 | ret = RSA_sign_ASN1_OCTET_STRING(0, tbs, tbslen, sig, &sltmp, | |
517 | prsactx->rsa); | |
518 | ||
519 | if (ret <= 0) { | |
520 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
521 | return 0; | |
522 | } | |
523 | ret = sltmp; | |
524 | goto end; | |
525 | } | |
1b6ea308 | 526 | #endif |
6f4b7663 RL |
527 | switch (prsactx->pad_mode) { |
528 | case RSA_X931_PADDING: | |
529 | if ((size_t)RSA_size(prsactx->rsa) < tbslen + 1) { | |
2d553660 RL |
530 | ERR_raise_data(ERR_LIB_PROV, PROV_R_KEY_SIZE_TOO_SMALL, |
531 | "RSA key size = %d, expected minimum = %d", | |
532 | RSA_size(prsactx->rsa), tbslen + 1); | |
6f4b7663 RL |
533 | return 0; |
534 | } | |
535 | if (!setup_tbuf(prsactx)) { | |
536 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
537 | return 0; | |
538 | } | |
539 | memcpy(prsactx->tbuf, tbs, tbslen); | |
540 | prsactx->tbuf[tbslen] = RSA_X931_hash_id(prsactx->mdnid); | |
541 | ret = RSA_private_encrypt(tbslen + 1, prsactx->tbuf, | |
542 | sig, prsactx->rsa, RSA_X931_PADDING); | |
543 | clean_tbuf(prsactx); | |
544 | break; | |
545 | ||
546 | case RSA_PKCS1_PADDING: | |
547 | { | |
548 | unsigned int sltmp; | |
549 | ||
550 | ret = RSA_sign(prsactx->mdnid, tbs, tbslen, sig, &sltmp, | |
551 | prsactx->rsa); | |
552 | if (ret <= 0) { | |
553 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
554 | return 0; | |
555 | } | |
556 | ret = sltmp; | |
557 | } | |
558 | break; | |
559 | ||
560 | case RSA_PKCS1_PSS_PADDING: | |
561 | /* Check PSS restrictions */ | |
562 | if (rsa_pss_restricted(prsactx)) { | |
563 | switch (prsactx->saltlen) { | |
564 | case RSA_PSS_SALTLEN_DIGEST: | |
565 | if (prsactx->min_saltlen > EVP_MD_size(prsactx->md)) { | |
2d553660 RL |
566 | ERR_raise_data(ERR_LIB_PROV, |
567 | PROV_R_PSS_SALTLEN_TOO_SMALL, | |
568 | "minimum salt length set to %d, " | |
569 | "but the digest only gives %d", | |
570 | prsactx->min_saltlen, | |
571 | EVP_MD_size(prsactx->md)); | |
6f4b7663 RL |
572 | return 0; |
573 | } | |
574 | /* FALLTHRU */ | |
575 | default: | |
576 | if (prsactx->saltlen >= 0 | |
577 | && prsactx->saltlen < prsactx->min_saltlen) { | |
2d553660 RL |
578 | ERR_raise_data(ERR_LIB_PROV, |
579 | PROV_R_PSS_SALTLEN_TOO_SMALL, | |
580 | "minimum salt length set to %d, but the" | |
581 | "actual salt length is only set to %d", | |
582 | prsactx->min_saltlen, | |
583 | prsactx->saltlen); | |
6f4b7663 RL |
584 | return 0; |
585 | } | |
586 | break; | |
587 | } | |
588 | } | |
589 | if (!setup_tbuf(prsactx)) | |
590 | return 0; | |
591 | if (!RSA_padding_add_PKCS1_PSS_mgf1(prsactx->rsa, | |
592 | prsactx->tbuf, tbs, | |
593 | prsactx->md, prsactx->mgf1_md, | |
594 | prsactx->saltlen)) { | |
595 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
596 | return 0; | |
597 | } | |
598 | ret = RSA_private_encrypt(RSA_size(prsactx->rsa), prsactx->tbuf, | |
599 | sig, prsactx->rsa, RSA_NO_PADDING); | |
600 | clean_tbuf(prsactx); | |
601 | break; | |
602 | ||
603 | default: | |
604 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_PADDING_MODE, | |
605 | "Only X.931, PKCS#1 v1.5 or PSS padding allowed"); | |
606 | return 0; | |
607 | } | |
608 | } else { | |
609 | ret = RSA_private_encrypt(tbslen, tbs, sig, prsactx->rsa, | |
610 | prsactx->pad_mode); | |
611 | } | |
612 | ||
f844f9eb | 613 | #ifndef FIPS_MODULE |
6f4b7663 RL |
614 | end: |
615 | #endif | |
616 | if (ret <= 0) { | |
617 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
618 | return 0; | |
619 | } | |
620 | ||
621 | *siglen = ret; | |
622 | return 1; | |
623 | } | |
624 | ||
0ec36bf1 RL |
625 | static int rsa_verify_recover_init(void *vprsactx, void *vrsa) |
626 | { | |
f590a5ea P |
627 | if (!ossl_prov_is_running()) |
628 | return 0; | |
3f699197 | 629 | return rsa_signverify_init(vprsactx, vrsa, EVP_PKEY_OP_VERIFYRECOVER); |
0ec36bf1 RL |
630 | } |
631 | ||
6f4b7663 RL |
632 | static int rsa_verify_recover(void *vprsactx, |
633 | unsigned char *rout, | |
634 | size_t *routlen, | |
635 | size_t routsize, | |
636 | const unsigned char *sig, | |
637 | size_t siglen) | |
638 | { | |
639 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
640 | int ret; | |
641 | ||
f590a5ea P |
642 | if (!ossl_prov_is_running()) |
643 | return 0; | |
644 | ||
6f4b7663 RL |
645 | if (rout == NULL) { |
646 | *routlen = RSA_size(prsactx->rsa); | |
647 | return 1; | |
648 | } | |
649 | ||
650 | if (prsactx->md != NULL) { | |
651 | switch (prsactx->pad_mode) { | |
652 | case RSA_X931_PADDING: | |
653 | if (!setup_tbuf(prsactx)) | |
654 | return 0; | |
655 | ret = RSA_public_decrypt(siglen, sig, prsactx->tbuf, prsactx->rsa, | |
656 | RSA_X931_PADDING); | |
657 | if (ret < 1) { | |
658 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
659 | return 0; | |
660 | } | |
661 | ret--; | |
662 | if (prsactx->tbuf[ret] != RSA_X931_hash_id(prsactx->mdnid)) { | |
663 | ERR_raise(ERR_LIB_PROV, PROV_R_ALGORITHM_MISMATCH); | |
664 | return 0; | |
665 | } | |
666 | if (ret != EVP_MD_size(prsactx->md)) { | |
667 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST_LENGTH, | |
668 | "Should be %d, but got %d", | |
669 | EVP_MD_size(prsactx->md), ret); | |
670 | return 0; | |
671 | } | |
672 | ||
673 | *routlen = ret; | |
4f2271d5 SL |
674 | if (rout != prsactx->tbuf) { |
675 | if (routsize < (size_t)ret) { | |
676 | ERR_raise_data(ERR_LIB_PROV, PROV_R_OUTPUT_BUFFER_TOO_SMALL, | |
677 | "buffer size is %d, should be %d", | |
678 | routsize, ret); | |
679 | return 0; | |
680 | } | |
681 | memcpy(rout, prsactx->tbuf, ret); | |
6f4b7663 | 682 | } |
6f4b7663 RL |
683 | break; |
684 | ||
685 | case RSA_PKCS1_PADDING: | |
686 | { | |
687 | size_t sltmp; | |
688 | ||
689 | ret = int_rsa_verify(prsactx->mdnid, NULL, 0, rout, &sltmp, | |
690 | sig, siglen, prsactx->rsa); | |
691 | if (ret <= 0) { | |
692 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
693 | return 0; | |
694 | } | |
695 | ret = sltmp; | |
696 | } | |
697 | break; | |
698 | ||
699 | default: | |
700 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_PADDING_MODE, | |
701 | "Only X.931 or PKCS#1 v1.5 padding allowed"); | |
702 | return 0; | |
703 | } | |
704 | } else { | |
705 | ret = RSA_public_decrypt(siglen, sig, rout, prsactx->rsa, | |
706 | prsactx->pad_mode); | |
707 | if (ret < 0) { | |
708 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
709 | return 0; | |
710 | } | |
711 | } | |
712 | *routlen = ret; | |
713 | return 1; | |
714 | } | |
715 | ||
0ec36bf1 RL |
716 | static int rsa_verify_init(void *vprsactx, void *vrsa) |
717 | { | |
f590a5ea P |
718 | if (!ossl_prov_is_running()) |
719 | return 0; | |
3f699197 | 720 | return rsa_signverify_init(vprsactx, vrsa, EVP_PKEY_OP_VERIFY); |
0ec36bf1 RL |
721 | } |
722 | ||
6f4b7663 RL |
723 | static int rsa_verify(void *vprsactx, const unsigned char *sig, size_t siglen, |
724 | const unsigned char *tbs, size_t tbslen) | |
725 | { | |
726 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
727 | size_t rslen; | |
728 | ||
f590a5ea P |
729 | if (!ossl_prov_is_running()) |
730 | return 0; | |
6f4b7663 RL |
731 | if (prsactx->md != NULL) { |
732 | switch (prsactx->pad_mode) { | |
733 | case RSA_PKCS1_PADDING: | |
734 | if (!RSA_verify(prsactx->mdnid, tbs, tbslen, sig, siglen, | |
735 | prsactx->rsa)) { | |
736 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
737 | return 0; | |
738 | } | |
739 | return 1; | |
740 | case RSA_X931_PADDING: | |
4f2271d5 SL |
741 | if (!setup_tbuf(prsactx)) |
742 | return 0; | |
743 | if (rsa_verify_recover(prsactx, prsactx->tbuf, &rslen, 0, | |
744 | sig, siglen) <= 0) | |
6f4b7663 RL |
745 | return 0; |
746 | break; | |
747 | case RSA_PKCS1_PSS_PADDING: | |
748 | { | |
749 | int ret; | |
750 | size_t mdsize; | |
751 | ||
6f4b7663 RL |
752 | /* |
753 | * We need to check this for the RSA_verify_PKCS1_PSS_mgf1() | |
754 | * call | |
755 | */ | |
756 | mdsize = rsa_get_md_size(prsactx); | |
757 | if (tbslen != mdsize) { | |
758 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_DIGEST_LENGTH, | |
759 | "Should be %d, but got %d", | |
760 | mdsize, tbslen); | |
761 | return 0; | |
762 | } | |
763 | ||
764 | if (!setup_tbuf(prsactx)) | |
765 | return 0; | |
766 | ret = RSA_public_decrypt(siglen, sig, prsactx->tbuf, | |
767 | prsactx->rsa, RSA_NO_PADDING); | |
768 | if (ret <= 0) { | |
769 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
770 | return 0; | |
771 | } | |
772 | ret = RSA_verify_PKCS1_PSS_mgf1(prsactx->rsa, tbs, | |
773 | prsactx->md, prsactx->mgf1_md, | |
774 | prsactx->tbuf, | |
775 | prsactx->saltlen); | |
776 | if (ret <= 0) { | |
777 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
778 | return 0; | |
779 | } | |
780 | return 1; | |
781 | } | |
782 | default: | |
783 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_PADDING_MODE, | |
784 | "Only X.931, PKCS#1 v1.5 or PSS padding allowed"); | |
785 | return 0; | |
786 | } | |
787 | } else { | |
788 | if (!setup_tbuf(prsactx)) | |
789 | return 0; | |
790 | rslen = RSA_public_decrypt(siglen, sig, prsactx->tbuf, prsactx->rsa, | |
791 | prsactx->pad_mode); | |
792 | if (rslen == 0) { | |
793 | ERR_raise(ERR_LIB_PROV, ERR_LIB_RSA); | |
794 | return 0; | |
795 | } | |
796 | } | |
797 | ||
798 | if ((rslen != tbslen) || memcmp(tbs, prsactx->tbuf, rslen)) | |
799 | return 0; | |
800 | ||
801 | return 1; | |
802 | } | |
803 | ||
804 | static int rsa_digest_signverify_init(void *vprsactx, const char *mdname, | |
2c6094ba | 805 | void *vrsa, int operation) |
6f4b7663 RL |
806 | { |
807 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
808 | ||
f590a5ea P |
809 | if (!ossl_prov_is_running()) |
810 | return 0; | |
811 | ||
db1319b7 SL |
812 | if (prsactx != NULL) |
813 | prsactx->flag_allow_md = 0; | |
bbde8566 TM |
814 | if (!rsa_signverify_init(vprsactx, vrsa, operation)) |
815 | return 0; | |
816 | if (mdname != NULL | |
817 | /* was rsa_setup_md already called in rsa_signverify_init()? */ | |
818 | && (mdname[0] == '\0' || strcasecmp(prsactx->mdname, mdname) != 0) | |
819 | && !rsa_setup_md(prsactx, mdname, prsactx->propq)) | |
6f4b7663 RL |
820 | return 0; |
821 | ||
822 | prsactx->mdctx = EVP_MD_CTX_new(); | |
2d553660 RL |
823 | if (prsactx->mdctx == NULL) { |
824 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
6f4b7663 | 825 | goto error; |
2d553660 | 826 | } |
6f4b7663 RL |
827 | |
828 | if (!EVP_DigestInit_ex(prsactx->mdctx, prsactx->md, NULL)) | |
829 | goto error; | |
830 | ||
831 | return 1; | |
832 | ||
833 | error: | |
834 | EVP_MD_CTX_free(prsactx->mdctx); | |
835 | EVP_MD_free(prsactx->md); | |
836 | prsactx->mdctx = NULL; | |
837 | prsactx->md = NULL; | |
838 | return 0; | |
839 | } | |
840 | ||
0ec36bf1 RL |
841 | static int rsa_digest_signverify_update(void *vprsactx, |
842 | const unsigned char *data, | |
843 | size_t datalen) | |
6f4b7663 RL |
844 | { |
845 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
846 | ||
847 | if (prsactx == NULL || prsactx->mdctx == NULL) | |
848 | return 0; | |
849 | ||
850 | return EVP_DigestUpdate(prsactx->mdctx, data, datalen); | |
851 | } | |
852 | ||
0ec36bf1 | 853 | static int rsa_digest_sign_init(void *vprsactx, const char *mdname, |
2d553660 | 854 | void *vrsa) |
0ec36bf1 | 855 | { |
f590a5ea P |
856 | if (!ossl_prov_is_running()) |
857 | return 0; | |
2d553660 | 858 | return rsa_digest_signverify_init(vprsactx, mdname, vrsa, |
0ec36bf1 RL |
859 | EVP_PKEY_OP_SIGN); |
860 | } | |
861 | ||
862 | static int rsa_digest_sign_final(void *vprsactx, unsigned char *sig, | |
863 | size_t *siglen, size_t sigsize) | |
6f4b7663 RL |
864 | { |
865 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
866 | unsigned char digest[EVP_MAX_MD_SIZE]; | |
867 | unsigned int dlen = 0; | |
868 | ||
f590a5ea | 869 | if (!ossl_prov_is_running() || prsactx == NULL) |
51bba73e | 870 | return 0; |
6f4b7663 | 871 | prsactx->flag_allow_md = 1; |
51bba73e | 872 | if (prsactx->mdctx == NULL) |
6f4b7663 | 873 | return 0; |
6f4b7663 RL |
874 | /* |
875 | * If sig is NULL then we're just finding out the sig size. Other fields | |
876 | * are ignored. Defer to rsa_sign. | |
877 | */ | |
878 | if (sig != NULL) { | |
879 | /* | |
3f699197 SL |
880 | * The digests used here are all known (see rsa_get_md_nid()), so they |
881 | * should not exceed the internal buffer size of EVP_MAX_MD_SIZE. | |
6f4b7663 RL |
882 | */ |
883 | if (!EVP_DigestFinal_ex(prsactx->mdctx, digest, &dlen)) | |
884 | return 0; | |
885 | } | |
886 | ||
887 | return rsa_sign(vprsactx, sig, siglen, sigsize, digest, (size_t)dlen); | |
888 | } | |
889 | ||
0ec36bf1 | 890 | static int rsa_digest_verify_init(void *vprsactx, const char *mdname, |
2d553660 | 891 | void *vrsa) |
0ec36bf1 | 892 | { |
f590a5ea P |
893 | if (!ossl_prov_is_running()) |
894 | return 0; | |
2d553660 | 895 | return rsa_digest_signverify_init(vprsactx, mdname, vrsa, |
0ec36bf1 RL |
896 | EVP_PKEY_OP_VERIFY); |
897 | } | |
6f4b7663 RL |
898 | |
899 | int rsa_digest_verify_final(void *vprsactx, const unsigned char *sig, | |
900 | size_t siglen) | |
901 | { | |
902 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
903 | unsigned char digest[EVP_MAX_MD_SIZE]; | |
904 | unsigned int dlen = 0; | |
905 | ||
f590a5ea P |
906 | if (!ossl_prov_is_running()) |
907 | return 0; | |
908 | ||
db1319b7 SL |
909 | if (prsactx == NULL) |
910 | return 0; | |
6f4b7663 | 911 | prsactx->flag_allow_md = 1; |
db1319b7 | 912 | if (prsactx->mdctx == NULL) |
6f4b7663 RL |
913 | return 0; |
914 | ||
915 | /* | |
3f699197 SL |
916 | * The digests used here are all known (see rsa_get_md_nid()), so they |
917 | * should not exceed the internal buffer size of EVP_MAX_MD_SIZE. | |
6f4b7663 RL |
918 | */ |
919 | if (!EVP_DigestFinal_ex(prsactx->mdctx, digest, &dlen)) | |
920 | return 0; | |
921 | ||
922 | return rsa_verify(vprsactx, sig, siglen, digest, (size_t)dlen); | |
923 | } | |
924 | ||
925 | static void rsa_freectx(void *vprsactx) | |
926 | { | |
927 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
928 | ||
929 | if (prsactx == NULL) | |
930 | return; | |
931 | ||
6f4b7663 RL |
932 | EVP_MD_CTX_free(prsactx->mdctx); |
933 | EVP_MD_free(prsactx->md); | |
934 | EVP_MD_free(prsactx->mgf1_md); | |
2c6094ba | 935 | OPENSSL_free(prsactx->propq); |
6f4b7663 | 936 | free_tbuf(prsactx); |
fdf6118b | 937 | RSA_free(prsactx->rsa); |
6f4b7663 | 938 | |
26c5ea8f | 939 | OPENSSL_clear_free(prsactx, sizeof(*prsactx)); |
6f4b7663 RL |
940 | } |
941 | ||
942 | static void *rsa_dupctx(void *vprsactx) | |
943 | { | |
944 | PROV_RSA_CTX *srcctx = (PROV_RSA_CTX *)vprsactx; | |
945 | PROV_RSA_CTX *dstctx; | |
946 | ||
f590a5ea P |
947 | if (!ossl_prov_is_running()) |
948 | return NULL; | |
949 | ||
6f4b7663 | 950 | dstctx = OPENSSL_zalloc(sizeof(*srcctx)); |
2d553660 RL |
951 | if (dstctx == NULL) { |
952 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
6f4b7663 | 953 | return NULL; |
2d553660 | 954 | } |
6f4b7663 RL |
955 | |
956 | *dstctx = *srcctx; | |
957 | dstctx->rsa = NULL; | |
958 | dstctx->md = NULL; | |
959 | dstctx->mdctx = NULL; | |
960 | dstctx->tbuf = NULL; | |
c2386b81 | 961 | dstctx->propq = NULL; |
6f4b7663 RL |
962 | |
963 | if (srcctx->rsa != NULL && !RSA_up_ref(srcctx->rsa)) | |
964 | goto err; | |
965 | dstctx->rsa = srcctx->rsa; | |
966 | ||
967 | if (srcctx->md != NULL && !EVP_MD_up_ref(srcctx->md)) | |
968 | goto err; | |
969 | dstctx->md = srcctx->md; | |
970 | ||
971 | if (srcctx->mgf1_md != NULL && !EVP_MD_up_ref(srcctx->mgf1_md)) | |
972 | goto err; | |
973 | dstctx->mgf1_md = srcctx->mgf1_md; | |
974 | ||
975 | if (srcctx->mdctx != NULL) { | |
976 | dstctx->mdctx = EVP_MD_CTX_new(); | |
977 | if (dstctx->mdctx == NULL | |
978 | || !EVP_MD_CTX_copy_ex(dstctx->mdctx, srcctx->mdctx)) | |
979 | goto err; | |
980 | } | |
981 | ||
c2386b81 SL |
982 | if (srcctx->propq != NULL) { |
983 | dstctx->propq = OPENSSL_strdup(srcctx->propq); | |
984 | if (dstctx->propq == NULL) | |
985 | goto err; | |
986 | } | |
987 | ||
6f4b7663 RL |
988 | return dstctx; |
989 | err: | |
990 | rsa_freectx(dstctx); | |
991 | return NULL; | |
992 | } | |
993 | ||
994 | static int rsa_get_ctx_params(void *vprsactx, OSSL_PARAM *params) | |
995 | { | |
996 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
997 | OSSL_PARAM *p; | |
998 | ||
999 | if (prsactx == NULL || params == NULL) | |
1000 | return 0; | |
1001 | ||
1002 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_ALGORITHM_ID); | |
bbde8566 TM |
1003 | if (p != NULL) { |
1004 | /* The Algorithm Identifier of the combined signature algorithm */ | |
1005 | unsigned char aid_buf[128]; | |
1006 | unsigned char *aid; | |
1007 | size_t aid_len; | |
1008 | ||
1009 | aid = rsa_generate_signature_aid(prsactx, aid_buf, | |
1010 | sizeof(aid_buf), &aid_len); | |
1011 | if (aid == NULL || !OSSL_PARAM_set_octet_string(p, aid, aid_len)) | |
1012 | return 0; | |
1013 | } | |
6f4b7663 RL |
1014 | |
1015 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_PAD_MODE); | |
1016 | if (p != NULL) | |
1017 | switch (p->data_type) { | |
1018 | case OSSL_PARAM_INTEGER: | |
1019 | if (!OSSL_PARAM_set_int(p, prsactx->pad_mode)) | |
1020 | return 0; | |
1021 | break; | |
1022 | case OSSL_PARAM_UTF8_STRING: | |
1023 | { | |
1024 | int i; | |
1025 | const char *word = NULL; | |
1026 | ||
1027 | for (i = 0; padding_item[i].id != 0; i++) { | |
1028 | if (prsactx->pad_mode == (int)padding_item[i].id) { | |
1029 | word = padding_item[i].ptr; | |
1030 | break; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | if (word != NULL) { | |
1035 | if (!OSSL_PARAM_set_utf8_string(p, word)) | |
1036 | return 0; | |
1037 | } else { | |
1038 | ERR_raise(ERR_LIB_PROV, ERR_R_INTERNAL_ERROR); | |
1039 | } | |
1040 | } | |
1041 | break; | |
1042 | default: | |
1043 | return 0; | |
1044 | } | |
1045 | ||
1046 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_DIGEST); | |
1047 | if (p != NULL && !OSSL_PARAM_set_utf8_string(p, prsactx->mdname)) | |
1048 | return 0; | |
1049 | ||
1050 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_MGF1_DIGEST); | |
1051 | if (p != NULL && !OSSL_PARAM_set_utf8_string(p, prsactx->mgf1_mdname)) | |
1052 | return 0; | |
1053 | ||
1054 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_PSS_SALTLEN); | |
1055 | if (p != NULL) { | |
1056 | if (p->data_type == OSSL_PARAM_INTEGER) { | |
1057 | if (!OSSL_PARAM_set_int(p, prsactx->saltlen)) | |
1058 | return 0; | |
1059 | } else if (p->data_type == OSSL_PARAM_UTF8_STRING) { | |
b8086652 SL |
1060 | const char *value = NULL; |
1061 | ||
6f4b7663 RL |
1062 | switch (prsactx->saltlen) { |
1063 | case RSA_PSS_SALTLEN_DIGEST: | |
b8086652 | 1064 | value = OSSL_PKEY_RSA_PSS_SALT_LEN_DIGEST; |
6f4b7663 RL |
1065 | break; |
1066 | case RSA_PSS_SALTLEN_MAX: | |
b8086652 | 1067 | value = OSSL_PKEY_RSA_PSS_SALT_LEN_MAX; |
6f4b7663 RL |
1068 | break; |
1069 | case RSA_PSS_SALTLEN_AUTO: | |
b8086652 | 1070 | value = OSSL_PKEY_RSA_PSS_SALT_LEN_AUTO; |
6f4b7663 RL |
1071 | break; |
1072 | default: | |
b8086652 SL |
1073 | { |
1074 | int len = BIO_snprintf(p->data, p->data_size, "%d", | |
1075 | prsactx->saltlen); | |
1076 | ||
1077 | if (len <= 0) | |
1078 | return 0; | |
1079 | p->return_size = len; | |
1080 | break; | |
1081 | } | |
6f4b7663 | 1082 | } |
b8086652 SL |
1083 | if (value != NULL |
1084 | && !OSSL_PARAM_set_utf8_string(p, value)) | |
1085 | return 0; | |
6f4b7663 RL |
1086 | } |
1087 | } | |
1088 | ||
1089 | return 1; | |
1090 | } | |
1091 | ||
1092 | static const OSSL_PARAM known_gettable_ctx_params[] = { | |
1093 | OSSL_PARAM_octet_string(OSSL_SIGNATURE_PARAM_ALGORITHM_ID, NULL, 0), | |
1094 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_PAD_MODE, NULL, 0), | |
1095 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, NULL, 0), | |
1096 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_MGF1_DIGEST, NULL, 0), | |
1097 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_PSS_SALTLEN, NULL, 0), | |
1098 | OSSL_PARAM_END | |
1099 | }; | |
1100 | ||
3f699197 | 1101 | static const OSSL_PARAM *rsa_gettable_ctx_params(ossl_unused void *vctx) |
6f4b7663 RL |
1102 | { |
1103 | return known_gettable_ctx_params; | |
1104 | } | |
1105 | ||
1106 | static int rsa_set_ctx_params(void *vprsactx, const OSSL_PARAM params[]) | |
1107 | { | |
1108 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
1109 | const OSSL_PARAM *p; | |
bbde8566 TM |
1110 | int pad_mode = prsactx->pad_mode; |
1111 | int saltlen = prsactx->saltlen; | |
1112 | char mdname[OSSL_MAX_NAME_SIZE] = "", *pmdname = NULL; | |
1113 | char mdprops[OSSL_MAX_PROPQUERY_SIZE] = "", *pmdprops = NULL; | |
1114 | char mgf1mdname[OSSL_MAX_NAME_SIZE] = "", *pmgf1mdname = NULL; | |
1115 | char mgf1mdprops[OSSL_MAX_PROPQUERY_SIZE] = "", *pmgf1mdprops = NULL; | |
6f4b7663 RL |
1116 | |
1117 | if (prsactx == NULL || params == NULL) | |
1118 | return 0; | |
1119 | ||
1120 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_DIGEST); | |
1121 | /* Not allowed during certain operations */ | |
1122 | if (p != NULL && !prsactx->flag_allow_md) | |
1123 | return 0; | |
1124 | if (p != NULL) { | |
6f4b7663 RL |
1125 | const OSSL_PARAM *propsp = |
1126 | OSSL_PARAM_locate_const(params, | |
1127 | OSSL_SIGNATURE_PARAM_PROPERTIES); | |
1128 | ||
bbde8566 | 1129 | pmdname = mdname; |
6f4b7663 RL |
1130 | if (!OSSL_PARAM_get_utf8_string(p, &pmdname, sizeof(mdname))) |
1131 | return 0; | |
2c6094ba | 1132 | |
bbde8566 TM |
1133 | if (propsp != NULL) { |
1134 | pmdprops = mdprops; | |
1135 | if (!OSSL_PARAM_get_utf8_string(propsp, | |
1136 | &pmdprops, sizeof(mdprops))) | |
1137 | return 0; | |
6f4b7663 | 1138 | } |
6f4b7663 RL |
1139 | } |
1140 | ||
1141 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_PAD_MODE); | |
1142 | if (p != NULL) { | |
0ec36bf1 | 1143 | const char *err_extra_text = NULL; |
6f4b7663 RL |
1144 | |
1145 | switch (p->data_type) { | |
1146 | case OSSL_PARAM_INTEGER: /* Support for legacy pad mode number */ | |
1147 | if (!OSSL_PARAM_get_int(p, &pad_mode)) | |
1148 | return 0; | |
1149 | break; | |
1150 | case OSSL_PARAM_UTF8_STRING: | |
1151 | { | |
1152 | int i; | |
1153 | ||
1154 | if (p->data == NULL) | |
1155 | return 0; | |
1156 | ||
1157 | for (i = 0; padding_item[i].id != 0; i++) { | |
1158 | if (strcmp(p->data, padding_item[i].ptr) == 0) { | |
1159 | pad_mode = padding_item[i].id; | |
1160 | break; | |
1161 | } | |
1162 | } | |
1163 | } | |
1164 | break; | |
1165 | default: | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | switch (pad_mode) { | |
1170 | case RSA_PKCS1_OAEP_PADDING: | |
1171 | /* | |
1172 | * OAEP padding is for asymmetric cipher only so is not compatible | |
1173 | * with signature use. | |
1174 | */ | |
0ec36bf1 RL |
1175 | err_extra_text = "OAEP padding not allowed for signing / verifying"; |
1176 | goto bad_pad; | |
6f4b7663 | 1177 | case RSA_PKCS1_PSS_PADDING: |
0ec36bf1 RL |
1178 | if ((prsactx->operation |
1179 | & (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY)) == 0) { | |
1180 | err_extra_text = | |
1181 | "PSS padding only allowed for sign and verify operations"; | |
1182 | goto bad_pad; | |
1183 | } | |
0ec36bf1 | 1184 | break; |
6f4b7663 | 1185 | case RSA_PKCS1_PADDING: |
0ec36bf1 RL |
1186 | err_extra_text = "PKCS#1 padding not allowed with RSA-PSS"; |
1187 | goto cont; | |
6f4b7663 | 1188 | case RSA_SSLV23_PADDING: |
0ec36bf1 RL |
1189 | err_extra_text = "SSLv3 padding not allowed with RSA-PSS"; |
1190 | goto cont; | |
6f4b7663 | 1191 | case RSA_NO_PADDING: |
0ec36bf1 RL |
1192 | err_extra_text = "No padding not allowed with RSA-PSS"; |
1193 | goto cont; | |
6f4b7663 | 1194 | case RSA_X931_PADDING: |
0ec36bf1 | 1195 | err_extra_text = "X.931 padding not allowed with RSA-PSS"; |
6f4b7663 | 1196 | cont: |
2d553660 RL |
1197 | if (RSA_test_flags(prsactx->rsa, |
1198 | RSA_FLAG_TYPE_MASK) == RSA_FLAG_TYPE_RSA) | |
0ec36bf1 RL |
1199 | break; |
1200 | /* FALLTHRU */ | |
6f4b7663 | 1201 | default: |
0ec36bf1 RL |
1202 | bad_pad: |
1203 | if (err_extra_text == NULL) | |
1204 | ERR_raise(ERR_LIB_PROV, | |
1205 | PROV_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE); | |
1206 | else | |
1207 | ERR_raise_data(ERR_LIB_PROV, | |
1208 | PROV_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE, | |
1209 | err_extra_text); | |
6f4b7663 RL |
1210 | return 0; |
1211 | } | |
6f4b7663 RL |
1212 | } |
1213 | ||
1214 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_PSS_SALTLEN); | |
1215 | if (p != NULL) { | |
bbde8566 | 1216 | if (pad_mode != RSA_PKCS1_PSS_PADDING) { |
6f4b7663 RL |
1217 | ERR_raise_data(ERR_LIB_PROV, PROV_R_NOT_SUPPORTED, |
1218 | "PSS saltlen can only be specified if " | |
1219 | "PSS padding has been specified first"); | |
1220 | return 0; | |
1221 | } | |
1222 | ||
1223 | switch (p->data_type) { | |
1224 | case OSSL_PARAM_INTEGER: /* Support for legacy pad mode number */ | |
1225 | if (!OSSL_PARAM_get_int(p, &saltlen)) | |
1226 | return 0; | |
1227 | break; | |
1228 | case OSSL_PARAM_UTF8_STRING: | |
b8086652 | 1229 | if (strcmp(p->data, OSSL_PKEY_RSA_PSS_SALT_LEN_DIGEST) == 0) |
6f4b7663 | 1230 | saltlen = RSA_PSS_SALTLEN_DIGEST; |
b8086652 | 1231 | else if (strcmp(p->data, OSSL_PKEY_RSA_PSS_SALT_LEN_MAX) == 0) |
6f4b7663 | 1232 | saltlen = RSA_PSS_SALTLEN_MAX; |
b8086652 | 1233 | else if (strcmp(p->data, OSSL_PKEY_RSA_PSS_SALT_LEN_AUTO) == 0) |
6f4b7663 RL |
1234 | saltlen = RSA_PSS_SALTLEN_AUTO; |
1235 | else | |
1236 | saltlen = atoi(p->data); | |
1237 | break; | |
1238 | default: | |
1239 | return 0; | |
1240 | } | |
1241 | ||
1242 | /* | |
1243 | * RSA_PSS_SALTLEN_MAX seems curiously named in this check. | |
1244 | * Contrary to what it's name suggests, it's the currently | |
1245 | * lowest saltlen number possible. | |
1246 | */ | |
1247 | if (saltlen < RSA_PSS_SALTLEN_MAX) { | |
f5f29796 | 1248 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_SALT_LENGTH); |
6f4b7663 RL |
1249 | return 0; |
1250 | } | |
1251 | ||
0ec36bf1 | 1252 | if (rsa_pss_restricted(prsactx)) { |
6ce6ad39 | 1253 | switch (saltlen) { |
0ec36bf1 RL |
1254 | case RSA_PSS_SALTLEN_AUTO: |
1255 | if (prsactx->operation == EVP_PKEY_OP_VERIFY) { | |
f5f29796 TM |
1256 | ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_SALT_LENGTH, |
1257 | "Cannot use autodetected salt length"); | |
0ec36bf1 RL |
1258 | return 0; |
1259 | } | |
1260 | break; | |
1261 | case RSA_PSS_SALTLEN_DIGEST: | |
1262 | if (prsactx->min_saltlen > EVP_MD_size(prsactx->md)) { | |
1263 | ERR_raise_data(ERR_LIB_PROV, | |
1264 | PROV_R_PSS_SALTLEN_TOO_SMALL, | |
1265 | "Should be more than %d, but would be " | |
1266 | "set to match digest size (%d)", | |
1267 | prsactx->min_saltlen, | |
1268 | EVP_MD_size(prsactx->md)); | |
1269 | return 0; | |
1270 | } | |
6ce6ad39 | 1271 | break; |
0ec36bf1 RL |
1272 | default: |
1273 | if (saltlen >= 0 && saltlen < prsactx->min_saltlen) { | |
1274 | ERR_raise_data(ERR_LIB_PROV, | |
1275 | PROV_R_PSS_SALTLEN_TOO_SMALL, | |
1276 | "Should be more than %d, " | |
1277 | "but would be set to %d", | |
1278 | prsactx->min_saltlen, saltlen); | |
1279 | return 0; | |
1280 | } | |
1281 | } | |
1282 | } | |
6f4b7663 RL |
1283 | } |
1284 | ||
1285 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_MGF1_DIGEST); | |
1286 | if (p != NULL) { | |
6f4b7663 RL |
1287 | const OSSL_PARAM *propsp = |
1288 | OSSL_PARAM_locate_const(params, | |
1289 | OSSL_SIGNATURE_PARAM_MGF1_PROPERTIES); | |
1290 | ||
bbde8566 TM |
1291 | pmgf1mdname = mgf1mdname; |
1292 | if (!OSSL_PARAM_get_utf8_string(p, &pmgf1mdname, sizeof(mgf1mdname))) | |
6f4b7663 | 1293 | return 0; |
2c6094ba | 1294 | |
bbde8566 TM |
1295 | if (propsp != NULL) { |
1296 | pmgf1mdprops = mgf1mdprops; | |
1297 | if (!OSSL_PARAM_get_utf8_string(propsp, | |
1298 | &pmgf1mdprops, sizeof(mgf1mdprops))) | |
1299 | return 0; | |
1300 | } | |
6f4b7663 | 1301 | |
bbde8566 | 1302 | if (pad_mode != RSA_PKCS1_PSS_PADDING) { |
6f4b7663 RL |
1303 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_MGF1_MD); |
1304 | return 0; | |
1305 | } | |
bbde8566 | 1306 | } |
6f4b7663 | 1307 | |
bbde8566 TM |
1308 | prsactx->saltlen = saltlen; |
1309 | prsactx->pad_mode = pad_mode; | |
1310 | ||
1311 | if (prsactx->md == NULL && pmdname == NULL | |
1312 | && pad_mode == RSA_PKCS1_PSS_PADDING) | |
1313 | pmdname = RSA_DEFAULT_DIGEST_NAME; | |
6f4b7663 | 1314 | |
bbde8566 TM |
1315 | if (pmgf1mdname != NULL |
1316 | && !rsa_setup_mgf1_md(prsactx, pmgf1mdname, pmgf1mdprops)) | |
1317 | return 0; | |
1318 | ||
1319 | if (pmdname != NULL) { | |
1320 | if (!rsa_setup_md(prsactx, pmdname, pmdprops)) | |
1321 | return 0; | |
1322 | } else { | |
1323 | if (!rsa_check_padding(prsactx, NULL, NULL, prsactx->mdnid)) | |
6f4b7663 RL |
1324 | return 0; |
1325 | } | |
6f4b7663 RL |
1326 | return 1; |
1327 | } | |
1328 | ||
1329 | static const OSSL_PARAM known_settable_ctx_params[] = { | |
1330 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_PAD_MODE, NULL, 0), | |
1331 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, NULL, 0), | |
1332 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_PROPERTIES, NULL, 0), | |
1333 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_MGF1_DIGEST, NULL, 0), | |
1334 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_MGF1_PROPERTIES, NULL, 0), | |
1335 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_PSS_SALTLEN, NULL, 0), | |
1336 | OSSL_PARAM_END | |
1337 | }; | |
1338 | ||
991a6bb5 | 1339 | static const OSSL_PARAM *rsa_settable_ctx_params(ossl_unused void *provctx) |
6f4b7663 RL |
1340 | { |
1341 | /* | |
1342 | * TODO(3.0): Should this function return a different set of settable ctx | |
1343 | * params if the ctx is being used for a DigestSign/DigestVerify? In that | |
1344 | * case it is not allowed to set the digest size/digest name because the | |
1345 | * digest is explicitly set as part of the init. | |
1346 | */ | |
1347 | return known_settable_ctx_params; | |
1348 | } | |
1349 | ||
1350 | static int rsa_get_ctx_md_params(void *vprsactx, OSSL_PARAM *params) | |
1351 | { | |
1352 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
1353 | ||
1354 | if (prsactx->mdctx == NULL) | |
1355 | return 0; | |
1356 | ||
1357 | return EVP_MD_CTX_get_params(prsactx->mdctx, params); | |
1358 | } | |
1359 | ||
1360 | static const OSSL_PARAM *rsa_gettable_ctx_md_params(void *vprsactx) | |
1361 | { | |
1362 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
1363 | ||
1364 | if (prsactx->md == NULL) | |
1365 | return 0; | |
1366 | ||
1367 | return EVP_MD_gettable_ctx_params(prsactx->md); | |
1368 | } | |
1369 | ||
1370 | static int rsa_set_ctx_md_params(void *vprsactx, const OSSL_PARAM params[]) | |
1371 | { | |
1372 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
1373 | ||
1374 | if (prsactx->mdctx == NULL) | |
1375 | return 0; | |
1376 | ||
1377 | return EVP_MD_CTX_set_params(prsactx->mdctx, params); | |
1378 | } | |
1379 | ||
1380 | static const OSSL_PARAM *rsa_settable_ctx_md_params(void *vprsactx) | |
1381 | { | |
1382 | PROV_RSA_CTX *prsactx = (PROV_RSA_CTX *)vprsactx; | |
1383 | ||
1384 | if (prsactx->md == NULL) | |
1385 | return 0; | |
1386 | ||
1387 | return EVP_MD_settable_ctx_params(prsactx->md); | |
1388 | } | |
1389 | ||
1be63951 | 1390 | const OSSL_DISPATCH ossl_rsa_signature_functions[] = { |
6f4b7663 | 1391 | { OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))rsa_newctx }, |
0ec36bf1 | 1392 | { OSSL_FUNC_SIGNATURE_SIGN_INIT, (void (*)(void))rsa_sign_init }, |
6f4b7663 | 1393 | { OSSL_FUNC_SIGNATURE_SIGN, (void (*)(void))rsa_sign }, |
0ec36bf1 | 1394 | { OSSL_FUNC_SIGNATURE_VERIFY_INIT, (void (*)(void))rsa_verify_init }, |
6f4b7663 | 1395 | { OSSL_FUNC_SIGNATURE_VERIFY, (void (*)(void))rsa_verify }, |
0ec36bf1 RL |
1396 | { OSSL_FUNC_SIGNATURE_VERIFY_RECOVER_INIT, |
1397 | (void (*)(void))rsa_verify_recover_init }, | |
1398 | { OSSL_FUNC_SIGNATURE_VERIFY_RECOVER, | |
1399 | (void (*)(void))rsa_verify_recover }, | |
6f4b7663 | 1400 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT, |
0ec36bf1 | 1401 | (void (*)(void))rsa_digest_sign_init }, |
6f4b7663 RL |
1402 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_UPDATE, |
1403 | (void (*)(void))rsa_digest_signverify_update }, | |
1404 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_FINAL, | |
1405 | (void (*)(void))rsa_digest_sign_final }, | |
1406 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT, | |
0ec36bf1 | 1407 | (void (*)(void))rsa_digest_verify_init }, |
6f4b7663 RL |
1408 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_UPDATE, |
1409 | (void (*)(void))rsa_digest_signverify_update }, | |
1410 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_FINAL, | |
1411 | (void (*)(void))rsa_digest_verify_final }, | |
1412 | { OSSL_FUNC_SIGNATURE_FREECTX, (void (*)(void))rsa_freectx }, | |
1413 | { OSSL_FUNC_SIGNATURE_DUPCTX, (void (*)(void))rsa_dupctx }, | |
1414 | { OSSL_FUNC_SIGNATURE_GET_CTX_PARAMS, (void (*)(void))rsa_get_ctx_params }, | |
1415 | { OSSL_FUNC_SIGNATURE_GETTABLE_CTX_PARAMS, | |
1416 | (void (*)(void))rsa_gettable_ctx_params }, | |
1417 | { OSSL_FUNC_SIGNATURE_SET_CTX_PARAMS, (void (*)(void))rsa_set_ctx_params }, | |
1418 | { OSSL_FUNC_SIGNATURE_SETTABLE_CTX_PARAMS, | |
1419 | (void (*)(void))rsa_settable_ctx_params }, | |
1420 | { OSSL_FUNC_SIGNATURE_GET_CTX_MD_PARAMS, | |
1421 | (void (*)(void))rsa_get_ctx_md_params }, | |
1422 | { OSSL_FUNC_SIGNATURE_GETTABLE_CTX_MD_PARAMS, | |
1423 | (void (*)(void))rsa_gettable_ctx_md_params }, | |
1424 | { OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS, | |
1425 | (void (*)(void))rsa_set_ctx_md_params }, | |
1426 | { OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS, | |
1427 | (void (*)(void))rsa_settable_ctx_md_params }, | |
1428 | { 0, NULL } | |
1429 | }; |