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Commit | Line | Data |
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0f113f3e | 1 | /* |
d2e9e320 | 2 | * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved. |
448be743 | 3 | * |
3cdbea65 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
d2e9e320 RS |
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 | |
448be743 DSH |
8 | */ |
9 | ||
f41ac0ee P |
10 | /* |
11 | * DSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
448be743 | 16 | #include <stdio.h> |
448be743 DSH |
17 | #include <openssl/x509.h> |
18 | #include <openssl/asn1.h> | |
1e26a8ba | 19 | #include <openssl/bn.h> |
3c27208f | 20 | #include <openssl/cms.h> |
4889dadc MC |
21 | #include <openssl/core_names.h> |
22 | #include "internal/cryptlib.h" | |
25f2138b | 23 | #include "crypto/asn1.h" |
0abae163 | 24 | #include "crypto/dsa.h" |
25f2138b | 25 | #include "crypto/evp.h" |
110bff61 | 26 | #include "openssl/param_build.h" |
0abae163 | 27 | #include "internal/ffc.h" |
706457b7 | 28 | #include "dsa_local.h" |
448be743 DSH |
29 | |
30 | static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) | |
0f113f3e MC |
31 | { |
32 | const unsigned char *p, *pm; | |
33 | int pklen, pmlen; | |
34 | int ptype; | |
ac4e2577 DSH |
35 | const void *pval; |
36 | const ASN1_STRING *pstr; | |
0f113f3e MC |
37 | X509_ALGOR *palg; |
38 | ASN1_INTEGER *public_key = NULL; | |
39 | ||
40 | DSA *dsa = NULL; | |
41 | ||
42 | if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey)) | |
43 | return 0; | |
44 | X509_ALGOR_get0(NULL, &ptype, &pval, palg); | |
45 | ||
46 | if (ptype == V_ASN1_SEQUENCE) { | |
47 | pstr = pval; | |
48 | pm = pstr->data; | |
49 | pmlen = pstr->length; | |
50 | ||
75ebbd9a | 51 | if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL) { |
0f113f3e MC |
52 | DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR); |
53 | goto err; | |
54 | } | |
55 | ||
56 | } else if ((ptype == V_ASN1_NULL) || (ptype == V_ASN1_UNDEF)) { | |
75ebbd9a | 57 | if ((dsa = DSA_new()) == NULL) { |
0f113f3e MC |
58 | DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE); |
59 | goto err; | |
60 | } | |
61 | } else { | |
62 | DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_PARAMETER_ENCODING_ERROR); | |
63 | goto err; | |
64 | } | |
65 | ||
75ebbd9a | 66 | if ((public_key = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL) { |
0f113f3e MC |
67 | DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR); |
68 | goto err; | |
69 | } | |
70 | ||
75ebbd9a | 71 | if ((dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) { |
0f113f3e MC |
72 | DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR); |
73 | goto err; | |
74 | } | |
75 | ||
4889dadc | 76 | dsa->dirty_cnt++; |
0f113f3e MC |
77 | ASN1_INTEGER_free(public_key); |
78 | EVP_PKEY_assign_DSA(pkey, dsa); | |
79 | return 1; | |
80 | ||
81 | err: | |
2ace7450 | 82 | ASN1_INTEGER_free(public_key); |
d6407083 | 83 | DSA_free(dsa); |
0f113f3e MC |
84 | return 0; |
85 | ||
86 | } | |
448be743 | 87 | |
6f81892e | 88 | static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) |
0f113f3e MC |
89 | { |
90 | DSA *dsa; | |
0f113f3e MC |
91 | int ptype; |
92 | unsigned char *penc = NULL; | |
93 | int penclen; | |
0c7ca403 | 94 | ASN1_STRING *str = NULL; |
ea6b07b5 | 95 | ASN1_INTEGER *pubint = NULL; |
7760384b | 96 | ASN1_OBJECT *aobj; |
0f113f3e MC |
97 | |
98 | dsa = pkey->pkey.dsa; | |
dc8de3e6 SL |
99 | if (pkey->save_parameters |
100 | && dsa->params.p != NULL | |
101 | && dsa->params.q != NULL | |
102 | && dsa->params.g != NULL) { | |
0f113f3e | 103 | str = ASN1_STRING_new(); |
90945fa3 | 104 | if (str == NULL) { |
0c7ca403 MC |
105 | DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); |
106 | goto err; | |
107 | } | |
0f113f3e MC |
108 | str->length = i2d_DSAparams(dsa, &str->data); |
109 | if (str->length <= 0) { | |
110 | DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); | |
111 | goto err; | |
112 | } | |
0f113f3e MC |
113 | ptype = V_ASN1_SEQUENCE; |
114 | } else | |
115 | ptype = V_ASN1_UNDEF; | |
116 | ||
ea6b07b5 | 117 | pubint = BN_to_ASN1_INTEGER(dsa->pub_key, NULL); |
0f113f3e | 118 | |
ea6b07b5 DSH |
119 | if (pubint == NULL) { |
120 | DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); | |
121 | goto err; | |
122 | } | |
123 | ||
124 | penclen = i2d_ASN1_INTEGER(pubint, &penc); | |
125 | ASN1_INTEGER_free(pubint); | |
0f113f3e MC |
126 | |
127 | if (penclen <= 0) { | |
128 | DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); | |
129 | goto err; | |
130 | } | |
131 | ||
7760384b PK |
132 | aobj = OBJ_nid2obj(EVP_PKEY_DSA); |
133 | if (aobj == NULL) | |
134 | goto err; | |
135 | ||
136 | if (X509_PUBKEY_set0_param(pk, aobj, ptype, str, penc, penclen)) | |
0f113f3e MC |
137 | return 1; |
138 | ||
139 | err: | |
b548a1f1 | 140 | OPENSSL_free(penc); |
0dfb9398 | 141 | ASN1_STRING_free(str); |
0f113f3e MC |
142 | |
143 | return 0; | |
144 | } | |
145 | ||
146 | /* | |
147 | * In PKCS#8 DSA: you just get a private key integer and parameters in the | |
448be743 DSH |
148 | * AlgorithmIdentifier the pubkey must be recalculated. |
149 | */ | |
0f113f3e | 150 | |
245c6bc3 | 151 | static int dsa_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8) |
0f113f3e | 152 | { |
dfb10af9 | 153 | const unsigned char *p, *pm; |
0f113f3e MC |
154 | int pklen, pmlen; |
155 | int ptype; | |
ac4e2577 DSH |
156 | const void *pval; |
157 | const ASN1_STRING *pstr; | |
245c6bc3 | 158 | const X509_ALGOR *palg; |
0f113f3e MC |
159 | ASN1_INTEGER *privkey = NULL; |
160 | BN_CTX *ctx = NULL; | |
161 | ||
0f113f3e MC |
162 | DSA *dsa = NULL; |
163 | ||
ab4a81f6 DSH |
164 | int ret = 0; |
165 | ||
0f113f3e MC |
166 | if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8)) |
167 | return 0; | |
168 | X509_ALGOR_get0(NULL, &ptype, &pval, palg); | |
169 | ||
ab4a81f6 DSH |
170 | if ((privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL) |
171 | goto decerr; | |
dfb10af9 | 172 | if (privkey->type == V_ASN1_NEG_INTEGER || ptype != V_ASN1_SEQUENCE) |
ab4a81f6 | 173 | goto decerr; |
0f113f3e MC |
174 | |
175 | pstr = pval; | |
176 | pm = pstr->data; | |
177 | pmlen = pstr->length; | |
75ebbd9a | 178 | if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL) |
0f113f3e MC |
179 | goto decerr; |
180 | /* We have parameters now set private key */ | |
74924dcb RS |
181 | if ((dsa->priv_key = BN_secure_new()) == NULL |
182 | || !ASN1_INTEGER_to_BN(privkey, dsa->priv_key)) { | |
0f113f3e MC |
183 | DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR); |
184 | goto dsaerr; | |
185 | } | |
186 | /* Calculate public key */ | |
75ebbd9a | 187 | if ((dsa->pub_key = BN_new()) == NULL) { |
0f113f3e MC |
188 | DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE); |
189 | goto dsaerr; | |
190 | } | |
75ebbd9a | 191 | if ((ctx = BN_CTX_new()) == NULL) { |
0f113f3e MC |
192 | DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE); |
193 | goto dsaerr; | |
194 | } | |
195 | ||
6364475a | 196 | BN_set_flags(dsa->priv_key, BN_FLG_CONSTTIME); |
dc8de3e6 SL |
197 | if (!BN_mod_exp(dsa->pub_key, dsa->params.g, dsa->priv_key, dsa->params.p, |
198 | ctx)) { | |
0f113f3e MC |
199 | DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR); |
200 | goto dsaerr; | |
201 | } | |
202 | ||
4889dadc | 203 | dsa->dirty_cnt++; |
0f113f3e | 204 | EVP_PKEY_assign_DSA(pkey, dsa); |
0f113f3e | 205 | |
ab4a81f6 DSH |
206 | ret = 1; |
207 | goto done; | |
0f113f3e MC |
208 | |
209 | decerr: | |
f6fb7f18 | 210 | DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_DECODE_ERROR); |
0f113f3e | 211 | dsaerr: |
ab4a81f6 DSH |
212 | DSA_free(dsa); |
213 | done: | |
0f113f3e | 214 | BN_CTX_free(ctx); |
2ace7450 | 215 | ASN1_STRING_clear_free(privkey); |
ab4a81f6 | 216 | return ret; |
0f113f3e | 217 | } |
448be743 | 218 | |
6f81892e | 219 | static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) |
448be743 | 220 | { |
0f113f3e MC |
221 | ASN1_STRING *params = NULL; |
222 | ASN1_INTEGER *prkey = NULL; | |
223 | unsigned char *dp = NULL; | |
224 | int dplen; | |
225 | ||
12a765a5 | 226 | if (pkey->pkey.dsa == NULL|| pkey->pkey.dsa->priv_key == NULL) { |
0f113f3e MC |
227 | DSAerr(DSA_F_DSA_PRIV_ENCODE, DSA_R_MISSING_PARAMETERS); |
228 | goto err; | |
229 | } | |
230 | ||
231 | params = ASN1_STRING_new(); | |
232 | ||
90945fa3 | 233 | if (params == NULL) { |
0f113f3e MC |
234 | DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE); |
235 | goto err; | |
236 | } | |
237 | ||
238 | params->length = i2d_DSAparams(pkey->pkey.dsa, ¶ms->data); | |
239 | if (params->length <= 0) { | |
240 | DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE); | |
241 | goto err; | |
242 | } | |
243 | params->type = V_ASN1_SEQUENCE; | |
244 | ||
245 | /* Get private key into integer */ | |
246 | prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL); | |
247 | ||
12a765a5 | 248 | if (prkey == NULL) { |
0f113f3e MC |
249 | DSAerr(DSA_F_DSA_PRIV_ENCODE, DSA_R_BN_ERROR); |
250 | goto err; | |
251 | } | |
252 | ||
253 | dplen = i2d_ASN1_INTEGER(prkey, &dp); | |
254 | ||
a8ae0891 | 255 | ASN1_STRING_clear_free(prkey); |
fa4629b6 | 256 | prkey = NULL; |
0f113f3e MC |
257 | |
258 | if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0, | |
259 | V_ASN1_SEQUENCE, params, dp, dplen)) | |
260 | goto err; | |
261 | ||
262 | return 1; | |
263 | ||
264 | err: | |
b548a1f1 | 265 | OPENSSL_free(dp); |
0dfb9398 | 266 | ASN1_STRING_free(params); |
2ace7450 | 267 | ASN1_STRING_clear_free(prkey); |
0f113f3e | 268 | return 0; |
448be743 DSH |
269 | } |
270 | ||
6f81892e | 271 | static int int_dsa_size(const EVP_PKEY *pkey) |
0f113f3e | 272 | { |
26a7d938 | 273 | return DSA_size(pkey->pkey.dsa); |
0f113f3e | 274 | } |
6f81892e DSH |
275 | |
276 | static int dsa_bits(const EVP_PKEY *pkey) | |
0f113f3e | 277 | { |
5d8d9a8e | 278 | return DSA_bits(pkey->pkey.dsa); |
0f113f3e | 279 | } |
6f81892e | 280 | |
2514fa79 | 281 | static int dsa_security_bits(const EVP_PKEY *pkey) |
0f113f3e MC |
282 | { |
283 | return DSA_security_bits(pkey->pkey.dsa); | |
284 | } | |
2514fa79 | 285 | |
6f81892e | 286 | static int dsa_missing_parameters(const EVP_PKEY *pkey) |
0f113f3e MC |
287 | { |
288 | DSA *dsa; | |
289 | dsa = pkey->pkey.dsa; | |
dc8de3e6 SL |
290 | return dsa == NULL |
291 | || dsa->params.p == NULL | |
292 | || dsa->params.q == NULL | |
293 | || dsa->params.g == NULL; | |
0f113f3e | 294 | } |
6f81892e DSH |
295 | |
296 | static int dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) | |
0f113f3e | 297 | { |
2986ecdc DSH |
298 | if (to->pkey.dsa == NULL) { |
299 | to->pkey.dsa = DSA_new(); | |
300 | if (to->pkey.dsa == NULL) | |
301 | return 0; | |
302 | } | |
dc8de3e6 | 303 | if (!ffc_params_copy(&to->pkey.dsa->params, &from->pkey.dsa->params)) |
0f113f3e | 304 | return 0; |
0f113f3e | 305 | |
4889dadc | 306 | to->pkey.dsa->dirty_cnt++; |
0f113f3e MC |
307 | return 1; |
308 | } | |
6f81892e DSH |
309 | |
310 | static int dsa_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) | |
0f113f3e | 311 | { |
dc8de3e6 | 312 | return ffc_params_cmp(&a->pkey.dsa->params, &b->pkey.dsa->params, 1); |
0f113f3e | 313 | } |
6f81892e | 314 | |
0cb8499b | 315 | static int dsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) |
0f113f3e | 316 | { |
dc8de3e6 | 317 | return BN_cmp(b->pkey.dsa->pub_key, a->pkey.dsa->pub_key) == 0; |
0f113f3e | 318 | } |
0cb8499b | 319 | |
6f81892e | 320 | static void int_dsa_free(EVP_PKEY *pkey) |
0f113f3e MC |
321 | { |
322 | DSA_free(pkey->pkey.dsa); | |
323 | } | |
6f81892e | 324 | |
777c47ac | 325 | static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype) |
0f113f3e | 326 | { |
0f113f3e | 327 | int ret = 0; |
0f113f3e | 328 | const char *ktype = NULL; |
0f113f3e | 329 | const BIGNUM *priv_key, *pub_key; |
aecf529b | 330 | int mod_len = 0; |
331 | ||
dc8de3e6 SL |
332 | if (x->params.p != NULL) |
333 | mod_len = DSA_bits(x); | |
0f113f3e MC |
334 | |
335 | if (ptype == 2) | |
336 | priv_key = x->priv_key; | |
337 | else | |
338 | priv_key = NULL; | |
339 | ||
340 | if (ptype > 0) | |
341 | pub_key = x->pub_key; | |
342 | else | |
343 | pub_key = NULL; | |
344 | ||
345 | if (ptype == 2) | |
346 | ktype = "Private-Key"; | |
347 | else if (ptype == 1) | |
348 | ktype = "Public-Key"; | |
349 | else | |
350 | ktype = "DSA-Parameters"; | |
351 | ||
dc8de3e6 | 352 | if (priv_key != NULL) { |
0f113f3e MC |
353 | if (!BIO_indent(bp, off, 128)) |
354 | goto err; | |
dc8de3e6 | 355 | if (BIO_printf(bp, "%s: (%d bit)\n", ktype, mod_len) <= 0) |
0f113f3e | 356 | goto err; |
aecf529b | 357 | } else { |
358 | if (BIO_printf(bp, "Public-Key: (%d bit)\n", mod_len) <= 0) | |
359 | goto err; | |
0f113f3e MC |
360 | } |
361 | ||
a773b52a | 362 | if (!ASN1_bn_print(bp, "priv:", priv_key, NULL, off)) |
0f113f3e | 363 | goto err; |
a773b52a | 364 | if (!ASN1_bn_print(bp, "pub: ", pub_key, NULL, off)) |
0f113f3e | 365 | goto err; |
dc8de3e6 | 366 | if (!ffc_params_print(bp, &x->params, off)) |
0f113f3e MC |
367 | goto err; |
368 | ret = 1; | |
369 | err: | |
26a7d938 | 370 | return ret; |
0f113f3e | 371 | } |
35208f36 | 372 | |
3e4585c8 | 373 | static int dsa_param_decode(EVP_PKEY *pkey, |
0f113f3e MC |
374 | const unsigned char **pder, int derlen) |
375 | { | |
376 | DSA *dsa; | |
75ebbd9a RS |
377 | |
378 | if ((dsa = d2i_DSAparams(NULL, pder, derlen)) == NULL) { | |
0f113f3e MC |
379 | DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB); |
380 | return 0; | |
381 | } | |
4889dadc | 382 | dsa->dirty_cnt++; |
0f113f3e MC |
383 | EVP_PKEY_assign_DSA(pkey, dsa); |
384 | return 1; | |
385 | } | |
3e4585c8 DSH |
386 | |
387 | static int dsa_param_encode(const EVP_PKEY *pkey, unsigned char **pder) | |
0f113f3e MC |
388 | { |
389 | return i2d_DSAparams(pkey->pkey.dsa, pder); | |
390 | } | |
35208f36 DSH |
391 | |
392 | static int dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
0f113f3e MC |
393 | ASN1_PCTX *ctx) |
394 | { | |
395 | return do_dsa_print(bp, pkey->pkey.dsa, indent, 0); | |
396 | } | |
35208f36 DSH |
397 | |
398 | static int dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
0f113f3e MC |
399 | ASN1_PCTX *ctx) |
400 | { | |
401 | return do_dsa_print(bp, pkey->pkey.dsa, indent, 1); | |
402 | } | |
35208f36 DSH |
403 | |
404 | static int dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
0f113f3e MC |
405 | ASN1_PCTX *ctx) |
406 | { | |
407 | return do_dsa_print(bp, pkey->pkey.dsa, indent, 2); | |
408 | } | |
35208f36 | 409 | |
e4263314 | 410 | static int old_dsa_priv_decode(EVP_PKEY *pkey, |
0f113f3e MC |
411 | const unsigned char **pder, int derlen) |
412 | { | |
413 | DSA *dsa; | |
75ebbd9a RS |
414 | |
415 | if ((dsa = d2i_DSAPrivateKey(NULL, pder, derlen)) == NULL) { | |
0f113f3e MC |
416 | DSAerr(DSA_F_OLD_DSA_PRIV_DECODE, ERR_R_DSA_LIB); |
417 | return 0; | |
418 | } | |
4889dadc | 419 | dsa->dirty_cnt++; |
0f113f3e MC |
420 | EVP_PKEY_assign_DSA(pkey, dsa); |
421 | return 1; | |
422 | } | |
e4263314 DSH |
423 | |
424 | static int old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) | |
0f113f3e MC |
425 | { |
426 | return i2d_DSAPrivateKey(pkey->pkey.dsa, pder); | |
427 | } | |
e4263314 | 428 | |
fa1ba589 | 429 | static int dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg, |
0f113f3e MC |
430 | const ASN1_STRING *sig, int indent, ASN1_PCTX *pctx) |
431 | { | |
432 | DSA_SIG *dsa_sig; | |
433 | const unsigned char *p; | |
a773b52a | 434 | |
dc8de3e6 | 435 | if (sig == NULL) { |
0f113f3e MC |
436 | if (BIO_puts(bp, "\n") <= 0) |
437 | return 0; | |
438 | else | |
439 | return 1; | |
440 | } | |
441 | p = sig->data; | |
442 | dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length); | |
dc8de3e6 | 443 | if (dsa_sig != NULL) { |
0f113f3e | 444 | int rv = 0; |
9267c11b | 445 | const BIGNUM *r, *s; |
706a13f1 | 446 | |
9267c11b | 447 | DSA_SIG_get0(dsa_sig, &r, &s); |
0f113f3e MC |
448 | |
449 | if (BIO_write(bp, "\n", 1) != 1) | |
450 | goto err; | |
451 | ||
706a13f1 | 452 | if (!ASN1_bn_print(bp, "r: ", r, NULL, indent)) |
0f113f3e | 453 | goto err; |
706a13f1 | 454 | if (!ASN1_bn_print(bp, "s: ", s, NULL, indent)) |
0f113f3e MC |
455 | goto err; |
456 | rv = 1; | |
457 | err: | |
0f113f3e MC |
458 | DSA_SIG_free(dsa_sig); |
459 | return rv; | |
460 | } | |
a4c467c9 DO |
461 | if (BIO_puts(bp, "\n") <= 0) |
462 | return 0; | |
0f113f3e MC |
463 | return X509_signature_dump(bp, sig, indent); |
464 | } | |
fa1ba589 | 465 | |
492a9e24 | 466 | static int dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) |
0f113f3e MC |
467 | { |
468 | switch (op) { | |
469 | case ASN1_PKEY_CTRL_PKCS7_SIGN: | |
470 | if (arg1 == 0) { | |
471 | int snid, hnid; | |
472 | X509_ALGOR *alg1, *alg2; | |
473 | PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2); | |
474 | if (alg1 == NULL || alg1->algorithm == NULL) | |
475 | return -1; | |
476 | hnid = OBJ_obj2nid(alg1->algorithm); | |
477 | if (hnid == NID_undef) | |
478 | return -1; | |
479 | if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey))) | |
480 | return -1; | |
481 | X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0); | |
482 | } | |
483 | return 1; | |
8931b30d | 484 | #ifndef OPENSSL_NO_CMS |
0f113f3e MC |
485 | case ASN1_PKEY_CTRL_CMS_SIGN: |
486 | if (arg1 == 0) { | |
487 | int snid, hnid; | |
488 | X509_ALGOR *alg1, *alg2; | |
489 | CMS_SignerInfo_get0_algs(arg2, NULL, NULL, &alg1, &alg2); | |
490 | if (alg1 == NULL || alg1->algorithm == NULL) | |
491 | return -1; | |
492 | hnid = OBJ_obj2nid(alg1->algorithm); | |
493 | if (hnid == NID_undef) | |
494 | return -1; | |
495 | if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey))) | |
496 | return -1; | |
497 | X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0); | |
498 | } | |
499 | return 1; | |
500 | ||
501 | case ASN1_PKEY_CTRL_CMS_RI_TYPE: | |
502 | *(int *)arg2 = CMS_RECIPINFO_NONE; | |
503 | return 1; | |
8931b30d | 504 | #endif |
492a9e24 | 505 | |
0f113f3e MC |
506 | case ASN1_PKEY_CTRL_DEFAULT_MD_NID: |
507 | *(int *)arg2 = NID_sha256; | |
cd4c83b5 | 508 | return 1; |
03919683 | 509 | |
0f113f3e MC |
510 | default: |
511 | return -2; | |
492a9e24 | 512 | |
0f113f3e | 513 | } |
492a9e24 | 514 | |
0f113f3e | 515 | } |
492a9e24 | 516 | |
4889dadc MC |
517 | static size_t dsa_pkey_dirty_cnt(const EVP_PKEY *pkey) |
518 | { | |
519 | return pkey->pkey.dsa->dirty_cnt; | |
520 | } | |
521 | ||
b305452f RL |
522 | static int dsa_pkey_export_to(const EVP_PKEY *from, void *to_keydata, |
523 | EVP_KEYMGMT *to_keymgmt) | |
4889dadc | 524 | { |
b305452f | 525 | DSA *dsa = from->pkey.dsa; |
4889dadc MC |
526 | OSSL_PARAM_BLD tmpl; |
527 | const BIGNUM *p = DSA_get0_p(dsa), *g = DSA_get0_g(dsa); | |
528 | const BIGNUM *q = DSA_get0_q(dsa), *pub_key = DSA_get0_pub_key(dsa); | |
529 | const BIGNUM *priv_key = DSA_get0_priv_key(dsa); | |
530 | OSSL_PARAM *params; | |
0996cff9 | 531 | int selection = 0; |
b305452f | 532 | int rv; |
4889dadc | 533 | |
df13defd RL |
534 | /* |
535 | * If the DSA method is foreign, then we can't be sure of anything, and | |
536 | * can therefore not export or pretend to export. | |
537 | */ | |
538 | if (DSA_get_method(dsa) != DSA_OpenSSL()) | |
539 | return 0; | |
540 | ||
4889dadc | 541 | if (p == NULL || q == NULL || g == NULL) |
b305452f | 542 | return 0; |
4889dadc | 543 | |
110bff61 P |
544 | OSSL_PARAM_BLD_init(&tmpl); |
545 | if (!OSSL_PARAM_BLD_push_BN(&tmpl, OSSL_PKEY_PARAM_FFC_P, p) | |
546 | || !OSSL_PARAM_BLD_push_BN(&tmpl, OSSL_PKEY_PARAM_FFC_Q, q) | |
547 | || !OSSL_PARAM_BLD_push_BN(&tmpl, OSSL_PKEY_PARAM_FFC_G, g)) | |
b305452f | 548 | return 0; |
0996cff9 RL |
549 | selection |= OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS; |
550 | if (pub_key != NULL) { | |
110bff61 | 551 | if (!OSSL_PARAM_BLD_push_BN(&tmpl, OSSL_PKEY_PARAM_PUB_KEY, |
0996cff9 RL |
552 | pub_key)) |
553 | return 0; | |
554 | selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY; | |
555 | } | |
b305452f | 556 | if (priv_key != NULL) { |
110bff61 | 557 | if (!OSSL_PARAM_BLD_push_BN(&tmpl, OSSL_PKEY_PARAM_PRIV_KEY, |
b305452f RL |
558 | priv_key)) |
559 | return 0; | |
0996cff9 | 560 | selection |= OSSL_KEYMGMT_SELECT_PRIVATE_KEY; |
4889dadc MC |
561 | } |
562 | ||
110bff61 | 563 | if ((params = OSSL_PARAM_BLD_to_param(&tmpl)) == NULL) |
b305452f | 564 | return 0; |
4889dadc MC |
565 | |
566 | /* We export, the provider imports */ | |
0996cff9 | 567 | rv = evp_keymgmt_import(to_keymgmt, to_keydata, selection, params); |
4889dadc | 568 | |
110bff61 | 569 | OSSL_PARAM_BLD_free(params); |
b305452f RL |
570 | |
571 | return rv; | |
4889dadc MC |
572 | } |
573 | ||
0abae163 RL |
574 | static int dsa_pkey_import_from(const OSSL_PARAM params[], void *key) |
575 | { | |
576 | EVP_PKEY *pkey = key; | |
577 | DSA *dsa = DSA_new(); | |
578 | ||
579 | if (dsa == NULL) { | |
580 | ERR_raise(ERR_LIB_DSA, ERR_R_MALLOC_FAILURE); | |
581 | return 0; | |
582 | } | |
583 | ||
584 | if (!ffc_fromdata(dsa_get0_params(dsa), params) | |
585 | || !dsa_key_fromdata(dsa, params) | |
586 | || !EVP_PKEY_assign_DSA(pkey, dsa)) { | |
587 | DSA_free(dsa); | |
588 | return 0; | |
589 | } | |
590 | return 1; | |
591 | } | |
592 | ||
448be743 DSH |
593 | /* NB these are sorted in pkey_id order, lowest first */ |
594 | ||
578b5514 | 595 | const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[5] = { |
0f113f3e MC |
596 | |
597 | { | |
598 | EVP_PKEY_DSA2, | |
599 | EVP_PKEY_DSA, | |
600 | ASN1_PKEY_ALIAS}, | |
601 | ||
602 | { | |
603 | EVP_PKEY_DSA1, | |
604 | EVP_PKEY_DSA, | |
605 | ASN1_PKEY_ALIAS}, | |
606 | ||
607 | { | |
608 | EVP_PKEY_DSA4, | |
609 | EVP_PKEY_DSA, | |
610 | ASN1_PKEY_ALIAS}, | |
611 | ||
612 | { | |
613 | EVP_PKEY_DSA3, | |
614 | EVP_PKEY_DSA, | |
615 | ASN1_PKEY_ALIAS}, | |
616 | ||
617 | { | |
618 | EVP_PKEY_DSA, | |
619 | EVP_PKEY_DSA, | |
620 | 0, | |
621 | ||
622 | "DSA", | |
623 | "OpenSSL DSA method", | |
624 | ||
625 | dsa_pub_decode, | |
626 | dsa_pub_encode, | |
627 | dsa_pub_cmp, | |
628 | dsa_pub_print, | |
629 | ||
630 | dsa_priv_decode, | |
631 | dsa_priv_encode, | |
632 | dsa_priv_print, | |
633 | ||
634 | int_dsa_size, | |
635 | dsa_bits, | |
636 | dsa_security_bits, | |
637 | ||
638 | dsa_param_decode, | |
639 | dsa_param_encode, | |
640 | dsa_missing_parameters, | |
641 | dsa_copy_parameters, | |
642 | dsa_cmp_parameters, | |
643 | dsa_param_print, | |
644 | dsa_sig_print, | |
645 | ||
646 | int_dsa_free, | |
647 | dsa_pkey_ctrl, | |
648 | old_dsa_priv_decode, | |
4889dadc MC |
649 | old_dsa_priv_encode, |
650 | ||
651 | NULL, NULL, NULL, | |
652 | NULL, NULL, NULL, | |
653 | NULL, NULL, NULL, NULL, | |
654 | ||
655 | dsa_pkey_dirty_cnt, | |
0abae163 RL |
656 | dsa_pkey_export_to, |
657 | dsa_pkey_import_from | |
4889dadc | 658 | } |
0f113f3e | 659 | }; |