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edd3b7a3 SL |
1 | /* |
2 | * Copyright 2020 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 | /* | |
11 | * ECDSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
16 | #include <string.h> /* memcpy */ | |
17 | #include <openssl/crypto.h> | |
18 | #include <openssl/core_numbers.h> | |
19 | #include <openssl/core_names.h> | |
20 | #include <openssl/dsa.h> | |
21 | #include <openssl/params.h> | |
22 | #include <openssl/evp.h> | |
23 | #include <openssl/err.h> | |
24 | #include "internal/nelem.h" | |
25 | #include "internal/sizes.h" | |
2d956b32 | 26 | #include "internal/cryptlib.h" |
edd3b7a3 SL |
27 | #include "prov/providercommonerr.h" |
28 | #include "prov/implementations.h" | |
29 | #include "prov/provider_ctx.h" | |
30 | #include "crypto/ec.h" | |
2d956b32 | 31 | #include "prov/der_ec.h" |
edd3b7a3 SL |
32 | |
33 | static OSSL_OP_signature_newctx_fn ecdsa_newctx; | |
34 | static OSSL_OP_signature_sign_init_fn ecdsa_signature_init; | |
35 | static OSSL_OP_signature_verify_init_fn ecdsa_signature_init; | |
36 | static OSSL_OP_signature_sign_fn ecdsa_sign; | |
37 | static OSSL_OP_signature_verify_fn ecdsa_verify; | |
38 | static OSSL_OP_signature_digest_sign_init_fn ecdsa_digest_signverify_init; | |
39 | static OSSL_OP_signature_digest_sign_update_fn ecdsa_digest_signverify_update; | |
40 | static OSSL_OP_signature_digest_sign_final_fn ecdsa_digest_sign_final; | |
41 | static OSSL_OP_signature_digest_verify_init_fn ecdsa_digest_signverify_init; | |
42 | static OSSL_OP_signature_digest_verify_update_fn ecdsa_digest_signverify_update; | |
43 | static OSSL_OP_signature_digest_verify_final_fn ecdsa_digest_verify_final; | |
44 | static OSSL_OP_signature_freectx_fn ecdsa_freectx; | |
45 | static OSSL_OP_signature_dupctx_fn ecdsa_dupctx; | |
46 | static OSSL_OP_signature_get_ctx_params_fn ecdsa_get_ctx_params; | |
47 | static OSSL_OP_signature_gettable_ctx_params_fn ecdsa_gettable_ctx_params; | |
48 | static OSSL_OP_signature_set_ctx_params_fn ecdsa_set_ctx_params; | |
49 | static OSSL_OP_signature_settable_ctx_params_fn ecdsa_settable_ctx_params; | |
50 | static OSSL_OP_signature_get_ctx_md_params_fn ecdsa_get_ctx_md_params; | |
51 | static OSSL_OP_signature_gettable_ctx_md_params_fn ecdsa_gettable_ctx_md_params; | |
52 | static OSSL_OP_signature_set_ctx_md_params_fn ecdsa_set_ctx_md_params; | |
53 | static OSSL_OP_signature_settable_ctx_md_params_fn ecdsa_settable_ctx_md_params; | |
54 | ||
55 | /* | |
56 | * What's passed as an actual key is defined by the KEYMGMT interface. | |
57 | * We happen to know that our KEYMGMT simply passes DSA structures, so | |
58 | * we use that here too. | |
59 | */ | |
60 | ||
61 | typedef struct { | |
62 | OPENSSL_CTX *libctx; | |
2c6094ba | 63 | char *propq; |
edd3b7a3 SL |
64 | EC_KEY *ec; |
65 | char mdname[OSSL_MAX_NAME_SIZE]; | |
66 | ||
67 | /* The Algorithm Identifier of the combined signature algorithm */ | |
2d956b32 RL |
68 | unsigned char aid_buf[OSSL_MAX_ALGORITHM_ID_SIZE]; |
69 | unsigned char *aid; | |
edd3b7a3 SL |
70 | size_t aid_len; |
71 | size_t mdsize; | |
72 | ||
73 | EVP_MD *md; | |
74 | EVP_MD_CTX *mdctx; | |
edd3b7a3 SL |
75 | /* |
76 | * Internally used to cache the results of calling the EC group | |
77 | * sign_setup() methods which are then passed to the sign operation. | |
78 | * This is used by CAVS failure tests to terminate a loop if the signature | |
79 | * is not valid. | |
80 | * This could of also been done with a simple flag. | |
81 | */ | |
82 | BIGNUM *kinv; | |
83 | BIGNUM *r; | |
4f2271d5 SL |
84 | #if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS) |
85 | /* | |
86 | * This indicates that KAT (CAVS) test is running. Externally an app will | |
87 | * override the random callback such that the generated private key and k | |
88 | * are known. | |
89 | * Normal operation will loop to choose a new k if the signature is not | |
90 | * valid - but for this mode of operation it forces a failure instead. | |
91 | */ | |
92 | unsigned int kattest; | |
93 | #endif | |
edd3b7a3 SL |
94 | } PROV_ECDSA_CTX; |
95 | ||
2c6094ba | 96 | static void *ecdsa_newctx(void *provctx, const char *propq) |
edd3b7a3 SL |
97 | { |
98 | PROV_ECDSA_CTX *ctx = OPENSSL_zalloc(sizeof(PROV_ECDSA_CTX)); | |
99 | ||
100 | if (ctx == NULL) | |
101 | return NULL; | |
102 | ||
103 | ctx->libctx = PROV_LIBRARY_CONTEXT_OF(provctx); | |
2c6094ba RL |
104 | if (propq != NULL && (ctx->propq = OPENSSL_strdup(propq)) == NULL) { |
105 | OPENSSL_free(ctx); | |
106 | ctx = NULL; | |
107 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
108 | } | |
edd3b7a3 SL |
109 | return ctx; |
110 | } | |
111 | ||
112 | static int ecdsa_signature_init(void *vctx, void *ec) | |
113 | { | |
114 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
115 | ||
116 | if (ctx == NULL || ec == NULL || !EC_KEY_up_ref(ec)) | |
117 | return 0; | |
118 | EC_KEY_free(ctx->ec); | |
119 | ctx->ec = ec; | |
120 | return 1; | |
121 | } | |
122 | ||
123 | static int ecdsa_sign(void *vctx, unsigned char *sig, size_t *siglen, | |
124 | size_t sigsize, const unsigned char *tbs, size_t tbslen) | |
125 | { | |
126 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
127 | int ret; | |
128 | unsigned int sltmp; | |
129 | size_t ecsize = ECDSA_size(ctx->ec); | |
130 | ||
131 | if (sig == NULL) { | |
132 | *siglen = ecsize; | |
133 | return 1; | |
134 | } | |
135 | ||
4f2271d5 | 136 | #if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS) |
edd3b7a3 SL |
137 | if (ctx->kattest && !ECDSA_sign_setup(ctx->ec, NULL, &ctx->kinv, &ctx->r)) |
138 | return 0; | |
4f2271d5 | 139 | #endif |
edd3b7a3 SL |
140 | |
141 | if (sigsize < (size_t)ecsize) | |
142 | return 0; | |
143 | ||
144 | if (ctx->mdsize != 0 && tbslen != ctx->mdsize) | |
145 | return 0; | |
146 | ||
147 | ret = ECDSA_sign_ex(0, tbs, tbslen, sig, &sltmp, ctx->kinv, ctx->r, ctx->ec); | |
148 | if (ret <= 0) | |
149 | return 0; | |
150 | ||
151 | *siglen = sltmp; | |
152 | return 1; | |
153 | } | |
154 | ||
155 | static int ecdsa_verify(void *vctx, const unsigned char *sig, size_t siglen, | |
156 | const unsigned char *tbs, size_t tbslen) | |
157 | { | |
158 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
159 | ||
160 | if (ctx->mdsize != 0 && tbslen != ctx->mdsize) | |
161 | return 0; | |
162 | ||
163 | return ECDSA_verify(0, tbs, tbslen, sig, siglen, ctx->ec); | |
164 | } | |
165 | ||
166 | static int get_md_nid(const EVP_MD *md) | |
167 | { | |
168 | /* | |
169 | * Because the ECDSA library deals with NIDs, we need to translate. | |
170 | * We do so using EVP_MD_is_a(), and therefore need a name to NID | |
171 | * map. | |
172 | */ | |
173 | static const OSSL_ITEM name_to_nid[] = { | |
174 | { NID_sha1, OSSL_DIGEST_NAME_SHA1 }, | |
175 | { NID_sha224, OSSL_DIGEST_NAME_SHA2_224 }, | |
176 | { NID_sha256, OSSL_DIGEST_NAME_SHA2_256 }, | |
177 | { NID_sha384, OSSL_DIGEST_NAME_SHA2_384 }, | |
178 | { NID_sha512, OSSL_DIGEST_NAME_SHA2_512 }, | |
179 | { NID_sha3_224, OSSL_DIGEST_NAME_SHA3_224 }, | |
180 | { NID_sha3_256, OSSL_DIGEST_NAME_SHA3_256 }, | |
181 | { NID_sha3_384, OSSL_DIGEST_NAME_SHA3_384 }, | |
182 | { NID_sha3_512, OSSL_DIGEST_NAME_SHA3_512 }, | |
183 | /* TODO - Add SHAKE OIDS when they are standardized */ | |
184 | ||
185 | }; | |
186 | size_t i; | |
187 | int mdnid = NID_undef; | |
188 | ||
189 | if (md == NULL) | |
190 | goto end; | |
191 | ||
192 | for (i = 0; i < OSSL_NELEM(name_to_nid); i++) { | |
193 | if (EVP_MD_is_a(md, name_to_nid[i].ptr)) { | |
194 | mdnid = (int)name_to_nid[i].id; | |
195 | break; | |
196 | } | |
197 | } | |
198 | ||
199 | if (mdnid == NID_undef) | |
200 | ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST); | |
201 | ||
202 | end: | |
203 | return mdnid; | |
204 | } | |
205 | ||
206 | static void free_md(PROV_ECDSA_CTX *ctx) | |
207 | { | |
4f2271d5 | 208 | OPENSSL_free(ctx->propq); |
edd3b7a3 SL |
209 | EVP_MD_CTX_free(ctx->mdctx); |
210 | EVP_MD_free(ctx->md); | |
4f2271d5 | 211 | ctx->propq = NULL; |
edd3b7a3 SL |
212 | ctx->mdctx = NULL; |
213 | ctx->md = NULL; | |
214 | ctx->mdsize = 0; | |
215 | } | |
216 | ||
217 | static int ecdsa_digest_signverify_init(void *vctx, const char *mdname, | |
2c6094ba | 218 | void *ec) |
edd3b7a3 SL |
219 | { |
220 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
2d956b32 RL |
221 | int md_nid = NID_undef; |
222 | WPACKET pkt; | |
edd3b7a3 SL |
223 | |
224 | free_md(ctx); | |
225 | ||
226 | if (!ecdsa_signature_init(vctx, ec)) | |
227 | return 0; | |
228 | ||
2c6094ba | 229 | ctx->md = EVP_MD_fetch(ctx->libctx, mdname, ctx->propq); |
2d956b32 | 230 | if ((md_nid = get_md_nid(ctx->md)) == NID_undef) |
edd3b7a3 SL |
231 | goto error; |
232 | ||
233 | ctx->mdsize = EVP_MD_size(ctx->md); | |
234 | ctx->mdctx = EVP_MD_CTX_new(); | |
235 | if (ctx->mdctx == NULL) | |
236 | goto error; | |
237 | ||
2d956b32 RL |
238 | /* |
239 | * TODO(3.0) Should we care about DER writing errors? | |
240 | * All it really means is that for some reason, there's no | |
241 | * AlgorithmIdentifier to be had, but the operation itself is | |
242 | * still valid, just as long as it's not used to construct | |
243 | * anything that needs an AlgorithmIdentifier. | |
244 | */ | |
245 | ctx->aid_len = 0; | |
246 | if (WPACKET_init_der(&pkt, ctx->aid_buf, sizeof(ctx->aid_buf)) | |
a30027b6 | 247 | && DER_w_algorithmIdentifier_ECDSA_with_MD(&pkt, -1, ctx->ec, md_nid) |
2d956b32 RL |
248 | && WPACKET_finish(&pkt)) { |
249 | WPACKET_get_total_written(&pkt, &ctx->aid_len); | |
250 | ctx->aid = WPACKET_get_curr(&pkt); | |
251 | } | |
252 | WPACKET_cleanup(&pkt); | |
edd3b7a3 SL |
253 | |
254 | if (!EVP_DigestInit_ex(ctx->mdctx, ctx->md, NULL)) | |
255 | goto error; | |
256 | return 1; | |
257 | error: | |
258 | free_md(ctx); | |
259 | return 0; | |
260 | } | |
261 | ||
262 | int ecdsa_digest_signverify_update(void *vctx, const unsigned char *data, | |
263 | size_t datalen) | |
264 | { | |
265 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
266 | ||
267 | if (ctx == NULL || ctx->mdctx == NULL) | |
268 | return 0; | |
269 | ||
270 | return EVP_DigestUpdate(ctx->mdctx, data, datalen); | |
271 | } | |
272 | ||
273 | int ecdsa_digest_sign_final(void *vctx, unsigned char *sig, size_t *siglen, | |
274 | size_t sigsize) | |
275 | { | |
276 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
277 | unsigned char digest[EVP_MAX_MD_SIZE]; | |
278 | unsigned int dlen = 0; | |
279 | ||
280 | if (ctx == NULL || ctx->mdctx == NULL) | |
281 | return 0; | |
282 | ||
283 | /* | |
284 | * If sig is NULL then we're just finding out the sig size. Other fields | |
285 | * are ignored. Defer to ecdsa_sign. | |
286 | */ | |
287 | if (sig != NULL) { | |
288 | /* | |
289 | * TODO(3.0): There is the possibility that some externally provided | |
290 | * digests exceed EVP_MAX_MD_SIZE. We should probably handle that somehow - | |
291 | * but that problem is much larger than just in DSA. | |
292 | */ | |
293 | if (!EVP_DigestFinal_ex(ctx->mdctx, digest, &dlen)) | |
294 | return 0; | |
295 | } | |
296 | ||
297 | return ecdsa_sign(vctx, sig, siglen, sigsize, digest, (size_t)dlen); | |
298 | } | |
299 | ||
300 | int ecdsa_digest_verify_final(void *vctx, const unsigned char *sig, | |
301 | size_t siglen) | |
302 | { | |
303 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
304 | unsigned char digest[EVP_MAX_MD_SIZE]; | |
305 | unsigned int dlen = 0; | |
306 | ||
307 | if (ctx == NULL || ctx->mdctx == NULL) | |
308 | return 0; | |
309 | ||
310 | /* | |
311 | * TODO(3.0): There is the possibility that some externally provided | |
312 | * digests exceed EVP_MAX_MD_SIZE. We should probably handle that somehow - | |
313 | * but that problem is much larger than just in DSA. | |
314 | */ | |
315 | if (!EVP_DigestFinal_ex(ctx->mdctx, digest, &dlen)) | |
316 | return 0; | |
317 | ||
318 | return ecdsa_verify(ctx, sig, siglen, digest, (size_t)dlen); | |
319 | } | |
320 | ||
321 | static void ecdsa_freectx(void *vctx) | |
322 | { | |
323 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
324 | ||
325 | free_md(ctx); | |
326 | EC_KEY_free(ctx->ec); | |
327 | BN_clear_free(ctx->kinv); | |
328 | BN_clear_free(ctx->r); | |
329 | OPENSSL_free(ctx); | |
330 | } | |
331 | ||
332 | static void *ecdsa_dupctx(void *vctx) | |
333 | { | |
334 | PROV_ECDSA_CTX *srcctx = (PROV_ECDSA_CTX *)vctx; | |
335 | PROV_ECDSA_CTX *dstctx; | |
336 | ||
337 | dstctx = OPENSSL_zalloc(sizeof(*srcctx)); | |
338 | if (dstctx == NULL) | |
339 | return NULL; | |
340 | ||
341 | *dstctx = *srcctx; | |
342 | dstctx->ec = NULL; | |
343 | dstctx->md = NULL; | |
344 | dstctx->mdctx = NULL; | |
345 | ||
346 | if (srcctx->ec != NULL && !EC_KEY_up_ref(srcctx->ec)) | |
347 | goto err; | |
348 | /* Test KATS should not need to be supported */ | |
349 | if (srcctx->kinv != NULL || srcctx->r != NULL) | |
350 | goto err; | |
351 | dstctx->ec = srcctx->ec; | |
352 | ||
353 | if (srcctx->md != NULL && !EVP_MD_up_ref(srcctx->md)) | |
354 | goto err; | |
355 | dstctx->md = srcctx->md; | |
356 | ||
357 | if (srcctx->mdctx != NULL) { | |
358 | dstctx->mdctx = EVP_MD_CTX_new(); | |
359 | if (dstctx->mdctx == NULL | |
360 | || !EVP_MD_CTX_copy_ex(dstctx->mdctx, srcctx->mdctx)) | |
361 | goto err; | |
362 | } | |
363 | ||
364 | return dstctx; | |
365 | err: | |
366 | ecdsa_freectx(dstctx); | |
367 | return NULL; | |
368 | } | |
369 | ||
370 | static int ecdsa_get_ctx_params(void *vctx, OSSL_PARAM *params) | |
371 | { | |
372 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
373 | OSSL_PARAM *p; | |
374 | ||
375 | if (ctx == NULL || params == NULL) | |
376 | return 0; | |
377 | ||
378 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_ALGORITHM_ID); | |
379 | if (p != NULL && !OSSL_PARAM_set_octet_string(p, ctx->aid, ctx->aid_len)) | |
380 | return 0; | |
381 | ||
382 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_DIGEST_SIZE); | |
383 | if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->mdsize)) | |
384 | return 0; | |
385 | ||
386 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_DIGEST); | |
387 | if (p != NULL && !OSSL_PARAM_set_utf8_string(p, ctx->md == NULL | |
388 | ? ctx->mdname | |
389 | : EVP_MD_name(ctx->md))) | |
390 | return 0; | |
391 | ||
392 | return 1; | |
393 | } | |
394 | ||
395 | static const OSSL_PARAM known_gettable_ctx_params[] = { | |
396 | OSSL_PARAM_octet_string(OSSL_SIGNATURE_PARAM_ALGORITHM_ID, NULL, 0), | |
397 | OSSL_PARAM_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE, NULL), | |
398 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, NULL, 0), | |
399 | OSSL_PARAM_END | |
400 | }; | |
401 | ||
402 | static const OSSL_PARAM *ecdsa_gettable_ctx_params(void) | |
403 | { | |
404 | return known_gettable_ctx_params; | |
405 | } | |
406 | ||
407 | static int ecdsa_set_ctx_params(void *vctx, const OSSL_PARAM params[]) | |
408 | { | |
409 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
410 | const OSSL_PARAM *p; | |
411 | char *mdname; | |
412 | ||
413 | if (ctx == NULL || params == NULL) | |
414 | return 0; | |
415 | ||
416 | if (ctx->md != NULL) { | |
417 | /* | |
418 | * You cannot set the digest name/size when doing a DigestSign or | |
419 | * DigestVerify. | |
420 | */ | |
421 | return 1; | |
422 | } | |
4f2271d5 | 423 | #if defined(FIPS_MODULE) && !defined(OPENSSL_NO_ACVP_TESTS) |
edd3b7a3 SL |
424 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_KAT); |
425 | if (p != NULL && !OSSL_PARAM_get_uint(p, &ctx->kattest)) | |
426 | return 0; | |
4f2271d5 | 427 | #endif |
edd3b7a3 SL |
428 | |
429 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_DIGEST_SIZE); | |
430 | if (p != NULL && !OSSL_PARAM_get_size_t(p, &ctx->mdsize)) | |
431 | return 0; | |
432 | ||
433 | /* | |
434 | * We never actually use the mdname, but we do support getting it later. | |
435 | * This can be useful for applications that want to know the MD that they | |
436 | * previously set. | |
437 | */ | |
438 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_DIGEST); | |
439 | mdname = ctx->mdname; | |
440 | if (p != NULL | |
441 | && !OSSL_PARAM_get_utf8_string(p, &mdname, sizeof(ctx->mdname))) | |
442 | return 0; | |
443 | ||
444 | return 1; | |
445 | } | |
446 | ||
447 | static const OSSL_PARAM known_settable_ctx_params[] = { | |
448 | OSSL_PARAM_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE, NULL), | |
449 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, NULL, 0), | |
450 | OSSL_PARAM_uint(OSSL_SIGNATURE_PARAM_KAT, NULL), | |
451 | OSSL_PARAM_END | |
452 | }; | |
453 | ||
454 | static const OSSL_PARAM *ecdsa_settable_ctx_params(void) | |
455 | { | |
456 | /* | |
457 | * TODO(3.0): Should this function return a different set of settable ctx | |
458 | * params if the ctx is being used for a DigestSign/DigestVerify? In that | |
459 | * case it is not allowed to set the digest size/digest name because the | |
460 | * digest is explicitly set as part of the init. | |
461 | */ | |
462 | return known_settable_ctx_params; | |
463 | } | |
464 | ||
465 | static int ecdsa_get_ctx_md_params(void *vctx, OSSL_PARAM *params) | |
466 | { | |
467 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
468 | ||
469 | if (ctx->mdctx == NULL) | |
470 | return 0; | |
471 | ||
472 | return EVP_MD_CTX_get_params(ctx->mdctx, params); | |
473 | } | |
474 | ||
475 | static const OSSL_PARAM *ecdsa_gettable_ctx_md_params(void *vctx) | |
476 | { | |
477 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
478 | ||
479 | if (ctx->md == NULL) | |
480 | return 0; | |
481 | ||
482 | return EVP_MD_gettable_ctx_params(ctx->md); | |
483 | } | |
484 | ||
485 | static int ecdsa_set_ctx_md_params(void *vctx, const OSSL_PARAM params[]) | |
486 | { | |
487 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
488 | ||
489 | if (ctx->mdctx == NULL) | |
490 | return 0; | |
491 | ||
492 | return EVP_MD_CTX_set_params(ctx->mdctx, params); | |
493 | } | |
494 | ||
495 | static const OSSL_PARAM *ecdsa_settable_ctx_md_params(void *vctx) | |
496 | { | |
497 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
498 | ||
499 | if (ctx->md == NULL) | |
500 | return 0; | |
501 | ||
502 | return EVP_MD_settable_ctx_params(ctx->md); | |
503 | } | |
504 | ||
505 | const OSSL_DISPATCH ecdsa_signature_functions[] = { | |
506 | { OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))ecdsa_newctx }, | |
507 | { OSSL_FUNC_SIGNATURE_SIGN_INIT, (void (*)(void))ecdsa_signature_init }, | |
508 | { OSSL_FUNC_SIGNATURE_SIGN, (void (*)(void))ecdsa_sign }, | |
509 | { OSSL_FUNC_SIGNATURE_VERIFY_INIT, (void (*)(void))ecdsa_signature_init }, | |
510 | { OSSL_FUNC_SIGNATURE_VERIFY, (void (*)(void))ecdsa_verify }, | |
511 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT, | |
512 | (void (*)(void))ecdsa_digest_signverify_init }, | |
513 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_UPDATE, | |
514 | (void (*)(void))ecdsa_digest_signverify_update }, | |
515 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_FINAL, | |
516 | (void (*)(void))ecdsa_digest_sign_final }, | |
517 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT, | |
518 | (void (*)(void))ecdsa_digest_signverify_init }, | |
519 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_UPDATE, | |
520 | (void (*)(void))ecdsa_digest_signverify_update }, | |
521 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_FINAL, | |
522 | (void (*)(void))ecdsa_digest_verify_final }, | |
523 | { OSSL_FUNC_SIGNATURE_FREECTX, (void (*)(void))ecdsa_freectx }, | |
524 | { OSSL_FUNC_SIGNATURE_DUPCTX, (void (*)(void))ecdsa_dupctx }, | |
525 | { OSSL_FUNC_SIGNATURE_GET_CTX_PARAMS, (void (*)(void))ecdsa_get_ctx_params }, | |
526 | { OSSL_FUNC_SIGNATURE_GETTABLE_CTX_PARAMS, | |
527 | (void (*)(void))ecdsa_gettable_ctx_params }, | |
528 | { OSSL_FUNC_SIGNATURE_SET_CTX_PARAMS, (void (*)(void))ecdsa_set_ctx_params }, | |
529 | { OSSL_FUNC_SIGNATURE_SETTABLE_CTX_PARAMS, | |
530 | (void (*)(void))ecdsa_settable_ctx_params }, | |
531 | { OSSL_FUNC_SIGNATURE_GET_CTX_MD_PARAMS, | |
532 | (void (*)(void))ecdsa_get_ctx_md_params }, | |
533 | { OSSL_FUNC_SIGNATURE_GETTABLE_CTX_MD_PARAMS, | |
534 | (void (*)(void))ecdsa_gettable_ctx_md_params }, | |
535 | { OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS, | |
536 | (void (*)(void))ecdsa_set_ctx_md_params }, | |
537 | { OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS, | |
538 | (void (*)(void))ecdsa_settable_ctx_md_params }, | |
539 | { 0, NULL } | |
540 | }; |