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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> | |
23c48d94 | 18 | #include <openssl/core_dispatch.h> |
edd3b7a3 SL |
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" |
f590a5ea | 27 | #include "prov/providercommon.h" |
edd3b7a3 SL |
28 | #include "prov/providercommonerr.h" |
29 | #include "prov/implementations.h" | |
30 | #include "prov/provider_ctx.h" | |
7a810fac | 31 | #include "prov/securitycheck.h" |
edd3b7a3 | 32 | #include "crypto/ec.h" |
2d956b32 | 33 | #include "prov/der_ec.h" |
edd3b7a3 | 34 | |
363b1e5d | 35 | static OSSL_FUNC_signature_newctx_fn ecdsa_newctx; |
0645110e SL |
36 | static OSSL_FUNC_signature_sign_init_fn ecdsa_sign_init; |
37 | static OSSL_FUNC_signature_verify_init_fn ecdsa_verify_init; | |
363b1e5d DMSP |
38 | static OSSL_FUNC_signature_sign_fn ecdsa_sign; |
39 | static OSSL_FUNC_signature_verify_fn ecdsa_verify; | |
0645110e | 40 | static OSSL_FUNC_signature_digest_sign_init_fn ecdsa_digest_sign_init; |
363b1e5d DMSP |
41 | static OSSL_FUNC_signature_digest_sign_update_fn ecdsa_digest_signverify_update; |
42 | static OSSL_FUNC_signature_digest_sign_final_fn ecdsa_digest_sign_final; | |
0645110e | 43 | static OSSL_FUNC_signature_digest_verify_init_fn ecdsa_digest_verify_init; |
363b1e5d DMSP |
44 | static OSSL_FUNC_signature_digest_verify_update_fn ecdsa_digest_signverify_update; |
45 | static OSSL_FUNC_signature_digest_verify_final_fn ecdsa_digest_verify_final; | |
46 | static OSSL_FUNC_signature_freectx_fn ecdsa_freectx; | |
47 | static OSSL_FUNC_signature_dupctx_fn ecdsa_dupctx; | |
48 | static OSSL_FUNC_signature_get_ctx_params_fn ecdsa_get_ctx_params; | |
49 | static OSSL_FUNC_signature_gettable_ctx_params_fn ecdsa_gettable_ctx_params; | |
50 | static OSSL_FUNC_signature_set_ctx_params_fn ecdsa_set_ctx_params; | |
51 | static OSSL_FUNC_signature_settable_ctx_params_fn ecdsa_settable_ctx_params; | |
52 | static OSSL_FUNC_signature_get_ctx_md_params_fn ecdsa_get_ctx_md_params; | |
53 | static OSSL_FUNC_signature_gettable_ctx_md_params_fn ecdsa_gettable_ctx_md_params; | |
54 | static OSSL_FUNC_signature_set_ctx_md_params_fn ecdsa_set_ctx_md_params; | |
55 | static OSSL_FUNC_signature_settable_ctx_md_params_fn ecdsa_settable_ctx_md_params; | |
edd3b7a3 SL |
56 | |
57 | /* | |
58 | * What's passed as an actual key is defined by the KEYMGMT interface. | |
59 | * We happen to know that our KEYMGMT simply passes DSA structures, so | |
60 | * we use that here too. | |
61 | */ | |
62 | ||
63 | typedef struct { | |
64 | OPENSSL_CTX *libctx; | |
2c6094ba | 65 | char *propq; |
edd3b7a3 SL |
66 | EC_KEY *ec; |
67 | char mdname[OSSL_MAX_NAME_SIZE]; | |
68 | ||
69 | /* The Algorithm Identifier of the combined signature algorithm */ | |
2d956b32 RL |
70 | unsigned char aid_buf[OSSL_MAX_ALGORITHM_ID_SIZE]; |
71 | unsigned char *aid; | |
edd3b7a3 SL |
72 | size_t aid_len; |
73 | size_t mdsize; | |
0645110e | 74 | int operation; |
edd3b7a3 SL |
75 | |
76 | EVP_MD *md; | |
77 | EVP_MD_CTX *mdctx; | |
edd3b7a3 SL |
78 | /* |
79 | * Internally used to cache the results of calling the EC group | |
80 | * sign_setup() methods which are then passed to the sign operation. | |
81 | * This is used by CAVS failure tests to terminate a loop if the signature | |
82 | * is not valid. | |
83 | * This could of also been done with a simple flag. | |
84 | */ | |
85 | BIGNUM *kinv; | |
86 | BIGNUM *r; | |
49ed5ba8 | 87 | #if !defined(OPENSSL_NO_ACVP_TESTS) |
4f2271d5 SL |
88 | /* |
89 | * This indicates that KAT (CAVS) test is running. Externally an app will | |
90 | * override the random callback such that the generated private key and k | |
91 | * are known. | |
92 | * Normal operation will loop to choose a new k if the signature is not | |
93 | * valid - but for this mode of operation it forces a failure instead. | |
94 | */ | |
95 | unsigned int kattest; | |
96 | #endif | |
edd3b7a3 SL |
97 | } PROV_ECDSA_CTX; |
98 | ||
2c6094ba | 99 | static void *ecdsa_newctx(void *provctx, const char *propq) |
edd3b7a3 | 100 | { |
f590a5ea | 101 | PROV_ECDSA_CTX *ctx; |
edd3b7a3 | 102 | |
f590a5ea P |
103 | if (!ossl_prov_is_running()) |
104 | return NULL; | |
105 | ||
106 | ctx = OPENSSL_zalloc(sizeof(PROV_ECDSA_CTX)); | |
edd3b7a3 SL |
107 | if (ctx == NULL) |
108 | return NULL; | |
109 | ||
110 | ctx->libctx = PROV_LIBRARY_CONTEXT_OF(provctx); | |
2c6094ba RL |
111 | if (propq != NULL && (ctx->propq = OPENSSL_strdup(propq)) == NULL) { |
112 | OPENSSL_free(ctx); | |
113 | ctx = NULL; | |
114 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
115 | } | |
edd3b7a3 SL |
116 | return ctx; |
117 | } | |
118 | ||
0645110e | 119 | static int ecdsa_signverify_init(void *vctx, void *ec, int operation) |
edd3b7a3 SL |
120 | { |
121 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
122 | ||
f590a5ea P |
123 | if (!ossl_prov_is_running() |
124 | || ctx == NULL | |
125 | || ec == NULL | |
126 | || !EC_KEY_up_ref(ec)) | |
edd3b7a3 SL |
127 | return 0; |
128 | EC_KEY_free(ctx->ec); | |
129 | ctx->ec = ec; | |
0645110e | 130 | ctx->operation = operation; |
49ed5ba8 | 131 | return ec_check_key(ec, operation == EVP_PKEY_OP_SIGN); |
0645110e SL |
132 | } |
133 | ||
134 | static int ecdsa_sign_init(void *vctx, void *ec) | |
135 | { | |
136 | return ecdsa_signverify_init(vctx, ec, EVP_PKEY_OP_SIGN); | |
137 | } | |
138 | ||
139 | static int ecdsa_verify_init(void *vctx, void *ec) | |
140 | { | |
141 | return ecdsa_signverify_init(vctx, ec, EVP_PKEY_OP_VERIFY); | |
edd3b7a3 SL |
142 | } |
143 | ||
144 | static int ecdsa_sign(void *vctx, unsigned char *sig, size_t *siglen, | |
145 | size_t sigsize, const unsigned char *tbs, size_t tbslen) | |
146 | { | |
147 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
148 | int ret; | |
149 | unsigned int sltmp; | |
150 | size_t ecsize = ECDSA_size(ctx->ec); | |
151 | ||
f590a5ea P |
152 | if (!ossl_prov_is_running()) |
153 | return 0; | |
154 | ||
edd3b7a3 SL |
155 | if (sig == NULL) { |
156 | *siglen = ecsize; | |
157 | return 1; | |
158 | } | |
159 | ||
49ed5ba8 | 160 | #if !defined(OPENSSL_NO_ACVP_TESTS) |
edd3b7a3 SL |
161 | if (ctx->kattest && !ECDSA_sign_setup(ctx->ec, NULL, &ctx->kinv, &ctx->r)) |
162 | return 0; | |
4f2271d5 | 163 | #endif |
edd3b7a3 SL |
164 | |
165 | if (sigsize < (size_t)ecsize) | |
166 | return 0; | |
167 | ||
168 | if (ctx->mdsize != 0 && tbslen != ctx->mdsize) | |
169 | return 0; | |
170 | ||
171 | ret = ECDSA_sign_ex(0, tbs, tbslen, sig, &sltmp, ctx->kinv, ctx->r, ctx->ec); | |
172 | if (ret <= 0) | |
173 | return 0; | |
174 | ||
175 | *siglen = sltmp; | |
176 | return 1; | |
177 | } | |
178 | ||
179 | static int ecdsa_verify(void *vctx, const unsigned char *sig, size_t siglen, | |
180 | const unsigned char *tbs, size_t tbslen) | |
181 | { | |
182 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
183 | ||
f590a5ea | 184 | if (!ossl_prov_is_running() || (ctx->mdsize != 0 && tbslen != ctx->mdsize)) |
edd3b7a3 SL |
185 | return 0; |
186 | ||
187 | return ECDSA_verify(0, tbs, tbslen, sig, siglen, ctx->ec); | |
188 | } | |
189 | ||
edd3b7a3 SL |
190 | static void free_md(PROV_ECDSA_CTX *ctx) |
191 | { | |
4f2271d5 | 192 | OPENSSL_free(ctx->propq); |
edd3b7a3 SL |
193 | EVP_MD_CTX_free(ctx->mdctx); |
194 | EVP_MD_free(ctx->md); | |
4f2271d5 | 195 | ctx->propq = NULL; |
edd3b7a3 SL |
196 | ctx->mdctx = NULL; |
197 | ctx->md = NULL; | |
198 | ctx->mdsize = 0; | |
199 | } | |
200 | ||
201 | static int ecdsa_digest_signverify_init(void *vctx, const char *mdname, | |
0645110e | 202 | void *ec, int operation) |
edd3b7a3 SL |
203 | { |
204 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
2d956b32 RL |
205 | int md_nid = NID_undef; |
206 | WPACKET pkt; | |
49ed5ba8 | 207 | int sha1_allowed = (ctx->operation != EVP_PKEY_OP_SIGN); |
edd3b7a3 | 208 | |
f590a5ea P |
209 | if (!ossl_prov_is_running()) |
210 | return 0; | |
211 | ||
edd3b7a3 SL |
212 | free_md(ctx); |
213 | ||
0645110e | 214 | if (!ecdsa_signverify_init(vctx, ec, operation)) |
edd3b7a3 SL |
215 | return 0; |
216 | ||
2c6094ba | 217 | ctx->md = EVP_MD_fetch(ctx->libctx, mdname, ctx->propq); |
49ed5ba8 | 218 | md_nid = digest_get_approved_nid_with_sha1(ctx->md, sha1_allowed); |
0645110e | 219 | if (md_nid == NID_undef) |
edd3b7a3 SL |
220 | goto error; |
221 | ||
222 | ctx->mdsize = EVP_MD_size(ctx->md); | |
223 | ctx->mdctx = EVP_MD_CTX_new(); | |
224 | if (ctx->mdctx == NULL) | |
225 | goto error; | |
226 | ||
2d956b32 RL |
227 | /* |
228 | * TODO(3.0) Should we care about DER writing errors? | |
229 | * All it really means is that for some reason, there's no | |
230 | * AlgorithmIdentifier to be had, but the operation itself is | |
231 | * still valid, just as long as it's not used to construct | |
232 | * anything that needs an AlgorithmIdentifier. | |
233 | */ | |
234 | ctx->aid_len = 0; | |
235 | if (WPACKET_init_der(&pkt, ctx->aid_buf, sizeof(ctx->aid_buf)) | |
a55b00bd P |
236 | && ossl_DER_w_algorithmIdentifier_ECDSA_with_MD(&pkt, -1, ctx->ec, |
237 | md_nid) | |
2d956b32 RL |
238 | && WPACKET_finish(&pkt)) { |
239 | WPACKET_get_total_written(&pkt, &ctx->aid_len); | |
240 | ctx->aid = WPACKET_get_curr(&pkt); | |
241 | } | |
242 | WPACKET_cleanup(&pkt); | |
edd3b7a3 SL |
243 | |
244 | if (!EVP_DigestInit_ex(ctx->mdctx, ctx->md, NULL)) | |
245 | goto error; | |
246 | return 1; | |
247 | error: | |
248 | free_md(ctx); | |
249 | return 0; | |
250 | } | |
251 | ||
0645110e SL |
252 | static int ecdsa_digest_sign_init(void *vctx, const char *mdname, void *ec) |
253 | { | |
254 | return ecdsa_digest_signverify_init(vctx, mdname, ec, EVP_PKEY_OP_SIGN); | |
255 | } | |
256 | ||
257 | static int ecdsa_digest_verify_init(void *vctx, const char *mdname, void *ec) | |
258 | { | |
259 | return ecdsa_digest_signverify_init(vctx, mdname, ec, EVP_PKEY_OP_VERIFY); | |
260 | } | |
261 | ||
edd3b7a3 SL |
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 | ||
f590a5ea | 280 | if (!ossl_prov_is_running() || ctx == NULL || ctx->mdctx == NULL) |
edd3b7a3 SL |
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 | ||
f590a5ea | 307 | if (!ossl_prov_is_running() || ctx == NULL || ctx->mdctx == NULL) |
edd3b7a3 SL |
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 | ||
f590a5ea P |
337 | if (!ossl_prov_is_running()) |
338 | return NULL; | |
339 | ||
edd3b7a3 SL |
340 | dstctx = OPENSSL_zalloc(sizeof(*srcctx)); |
341 | if (dstctx == NULL) | |
342 | return NULL; | |
343 | ||
344 | *dstctx = *srcctx; | |
345 | dstctx->ec = NULL; | |
346 | dstctx->md = NULL; | |
347 | dstctx->mdctx = NULL; | |
348 | ||
349 | if (srcctx->ec != NULL && !EC_KEY_up_ref(srcctx->ec)) | |
350 | goto err; | |
351 | /* Test KATS should not need to be supported */ | |
352 | if (srcctx->kinv != NULL || srcctx->r != NULL) | |
353 | goto err; | |
354 | dstctx->ec = srcctx->ec; | |
355 | ||
356 | if (srcctx->md != NULL && !EVP_MD_up_ref(srcctx->md)) | |
357 | goto err; | |
358 | dstctx->md = srcctx->md; | |
359 | ||
360 | if (srcctx->mdctx != NULL) { | |
361 | dstctx->mdctx = EVP_MD_CTX_new(); | |
362 | if (dstctx->mdctx == NULL | |
363 | || !EVP_MD_CTX_copy_ex(dstctx->mdctx, srcctx->mdctx)) | |
364 | goto err; | |
365 | } | |
366 | ||
367 | return dstctx; | |
368 | err: | |
369 | ecdsa_freectx(dstctx); | |
370 | return NULL; | |
371 | } | |
372 | ||
373 | static int ecdsa_get_ctx_params(void *vctx, OSSL_PARAM *params) | |
374 | { | |
375 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
376 | OSSL_PARAM *p; | |
377 | ||
378 | if (ctx == NULL || params == NULL) | |
379 | return 0; | |
380 | ||
381 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_ALGORITHM_ID); | |
382 | if (p != NULL && !OSSL_PARAM_set_octet_string(p, ctx->aid, ctx->aid_len)) | |
383 | return 0; | |
384 | ||
385 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_DIGEST_SIZE); | |
386 | if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->mdsize)) | |
387 | return 0; | |
388 | ||
389 | p = OSSL_PARAM_locate(params, OSSL_SIGNATURE_PARAM_DIGEST); | |
390 | if (p != NULL && !OSSL_PARAM_set_utf8_string(p, ctx->md == NULL | |
391 | ? ctx->mdname | |
392 | : EVP_MD_name(ctx->md))) | |
393 | return 0; | |
394 | ||
395 | return 1; | |
396 | } | |
397 | ||
398 | static const OSSL_PARAM known_gettable_ctx_params[] = { | |
399 | OSSL_PARAM_octet_string(OSSL_SIGNATURE_PARAM_ALGORITHM_ID, NULL, 0), | |
400 | OSSL_PARAM_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE, NULL), | |
401 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, NULL, 0), | |
402 | OSSL_PARAM_END | |
403 | }; | |
404 | ||
1017ab21 | 405 | static const OSSL_PARAM *ecdsa_gettable_ctx_params(ossl_unused void *provctx) |
edd3b7a3 SL |
406 | { |
407 | return known_gettable_ctx_params; | |
408 | } | |
409 | ||
410 | static int ecdsa_set_ctx_params(void *vctx, const OSSL_PARAM params[]) | |
411 | { | |
412 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
413 | const OSSL_PARAM *p; | |
414 | char *mdname; | |
415 | ||
416 | if (ctx == NULL || params == NULL) | |
417 | return 0; | |
418 | ||
419 | if (ctx->md != NULL) { | |
420 | /* | |
421 | * You cannot set the digest name/size when doing a DigestSign or | |
422 | * DigestVerify. | |
423 | */ | |
424 | return 1; | |
425 | } | |
49ed5ba8 | 426 | #if !defined(OPENSSL_NO_ACVP_TESTS) |
edd3b7a3 SL |
427 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_KAT); |
428 | if (p != NULL && !OSSL_PARAM_get_uint(p, &ctx->kattest)) | |
429 | return 0; | |
4f2271d5 | 430 | #endif |
edd3b7a3 SL |
431 | |
432 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_DIGEST_SIZE); | |
433 | if (p != NULL && !OSSL_PARAM_get_size_t(p, &ctx->mdsize)) | |
434 | return 0; | |
435 | ||
436 | /* | |
437 | * We never actually use the mdname, but we do support getting it later. | |
438 | * This can be useful for applications that want to know the MD that they | |
439 | * previously set. | |
440 | */ | |
441 | p = OSSL_PARAM_locate_const(params, OSSL_SIGNATURE_PARAM_DIGEST); | |
442 | mdname = ctx->mdname; | |
443 | if (p != NULL | |
444 | && !OSSL_PARAM_get_utf8_string(p, &mdname, sizeof(ctx->mdname))) | |
445 | return 0; | |
446 | ||
447 | return 1; | |
448 | } | |
449 | ||
450 | static const OSSL_PARAM known_settable_ctx_params[] = { | |
451 | OSSL_PARAM_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE, NULL), | |
452 | OSSL_PARAM_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST, NULL, 0), | |
453 | OSSL_PARAM_uint(OSSL_SIGNATURE_PARAM_KAT, NULL), | |
454 | OSSL_PARAM_END | |
455 | }; | |
456 | ||
1017ab21 | 457 | static const OSSL_PARAM *ecdsa_settable_ctx_params(ossl_unused void *provctx) |
edd3b7a3 SL |
458 | { |
459 | /* | |
460 | * TODO(3.0): Should this function return a different set of settable ctx | |
461 | * params if the ctx is being used for a DigestSign/DigestVerify? In that | |
462 | * case it is not allowed to set the digest size/digest name because the | |
463 | * digest is explicitly set as part of the init. | |
464 | */ | |
465 | return known_settable_ctx_params; | |
466 | } | |
467 | ||
468 | static int ecdsa_get_ctx_md_params(void *vctx, OSSL_PARAM *params) | |
469 | { | |
470 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
471 | ||
472 | if (ctx->mdctx == NULL) | |
473 | return 0; | |
474 | ||
475 | return EVP_MD_CTX_get_params(ctx->mdctx, params); | |
476 | } | |
477 | ||
478 | static const OSSL_PARAM *ecdsa_gettable_ctx_md_params(void *vctx) | |
479 | { | |
480 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
481 | ||
482 | if (ctx->md == NULL) | |
483 | return 0; | |
484 | ||
485 | return EVP_MD_gettable_ctx_params(ctx->md); | |
486 | } | |
487 | ||
488 | static int ecdsa_set_ctx_md_params(void *vctx, const OSSL_PARAM params[]) | |
489 | { | |
490 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
491 | ||
492 | if (ctx->mdctx == NULL) | |
493 | return 0; | |
494 | ||
495 | return EVP_MD_CTX_set_params(ctx->mdctx, params); | |
496 | } | |
497 | ||
498 | static const OSSL_PARAM *ecdsa_settable_ctx_md_params(void *vctx) | |
499 | { | |
500 | PROV_ECDSA_CTX *ctx = (PROV_ECDSA_CTX *)vctx; | |
501 | ||
502 | if (ctx->md == NULL) | |
503 | return 0; | |
504 | ||
505 | return EVP_MD_settable_ctx_params(ctx->md); | |
506 | } | |
507 | ||
1be63951 | 508 | const OSSL_DISPATCH ecossl_dsa_signature_functions[] = { |
edd3b7a3 | 509 | { OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))ecdsa_newctx }, |
0645110e | 510 | { OSSL_FUNC_SIGNATURE_SIGN_INIT, (void (*)(void))ecdsa_sign_init }, |
edd3b7a3 | 511 | { OSSL_FUNC_SIGNATURE_SIGN, (void (*)(void))ecdsa_sign }, |
0645110e | 512 | { OSSL_FUNC_SIGNATURE_VERIFY_INIT, (void (*)(void))ecdsa_verify_init }, |
edd3b7a3 SL |
513 | { OSSL_FUNC_SIGNATURE_VERIFY, (void (*)(void))ecdsa_verify }, |
514 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT, | |
0645110e | 515 | (void (*)(void))ecdsa_digest_sign_init }, |
edd3b7a3 SL |
516 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_UPDATE, |
517 | (void (*)(void))ecdsa_digest_signverify_update }, | |
518 | { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_FINAL, | |
519 | (void (*)(void))ecdsa_digest_sign_final }, | |
520 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT, | |
0645110e | 521 | (void (*)(void))ecdsa_digest_verify_init }, |
edd3b7a3 SL |
522 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_UPDATE, |
523 | (void (*)(void))ecdsa_digest_signverify_update }, | |
524 | { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_FINAL, | |
525 | (void (*)(void))ecdsa_digest_verify_final }, | |
526 | { OSSL_FUNC_SIGNATURE_FREECTX, (void (*)(void))ecdsa_freectx }, | |
527 | { OSSL_FUNC_SIGNATURE_DUPCTX, (void (*)(void))ecdsa_dupctx }, | |
528 | { OSSL_FUNC_SIGNATURE_GET_CTX_PARAMS, (void (*)(void))ecdsa_get_ctx_params }, | |
529 | { OSSL_FUNC_SIGNATURE_GETTABLE_CTX_PARAMS, | |
530 | (void (*)(void))ecdsa_gettable_ctx_params }, | |
531 | { OSSL_FUNC_SIGNATURE_SET_CTX_PARAMS, (void (*)(void))ecdsa_set_ctx_params }, | |
532 | { OSSL_FUNC_SIGNATURE_SETTABLE_CTX_PARAMS, | |
533 | (void (*)(void))ecdsa_settable_ctx_params }, | |
534 | { OSSL_FUNC_SIGNATURE_GET_CTX_MD_PARAMS, | |
535 | (void (*)(void))ecdsa_get_ctx_md_params }, | |
536 | { OSSL_FUNC_SIGNATURE_GETTABLE_CTX_MD_PARAMS, | |
537 | (void (*)(void))ecdsa_gettable_ctx_md_params }, | |
538 | { OSSL_FUNC_SIGNATURE_SET_CTX_MD_PARAMS, | |
539 | (void (*)(void))ecdsa_set_ctx_md_params }, | |
540 | { OSSL_FUNC_SIGNATURE_SETTABLE_CTX_MD_PARAMS, | |
541 | (void (*)(void))ecdsa_settable_ctx_md_params }, | |
542 | { 0, NULL } | |
543 | }; |