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90d3cb57 | 1 | /* |
a28d06f3 | 2 | * Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved. |
90d3cb57 MC |
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 | #include <assert.h> | |
381f3f3b MC |
11 | #include <string.h> |
12 | /* For strcasecmp on Windows */ | |
13 | #include "e_os.h" | |
23c48d94 | 14 | #include <openssl/core_dispatch.h> |
90d3cb57 | 15 | #include <openssl/core_names.h> |
43cd3701 | 16 | #include <openssl/params.h> |
c1e48c51 | 17 | #include <openssl/err.h> |
9a485440 | 18 | #include <openssl/proverr.h> |
43cd3701 P |
19 | #include <openssl/evp.h> |
20 | #include <openssl/rand.h> | |
21 | #include "internal/param_build_set.h" | |
22 | #include "openssl/param_build.h" | |
90d3cb57 MC |
23 | #include "crypto/ecx.h" |
24 | #include "prov/implementations.h" | |
25 | #include "prov/providercommon.h" | |
43cd3701 P |
26 | #include "prov/provider_ctx.h" |
27 | #ifdef S390X_EC_ASM | |
28 | # include "s390x_arch.h" | |
c1e48c51 | 29 | # include <openssl/sha.h> /* For SHA512_DIGEST_LENGTH */ |
43cd3701 | 30 | #endif |
90d3cb57 | 31 | |
363b1e5d DMSP |
32 | static OSSL_FUNC_keymgmt_new_fn x25519_new_key; |
33 | static OSSL_FUNC_keymgmt_new_fn x448_new_key; | |
34 | static OSSL_FUNC_keymgmt_new_fn ed25519_new_key; | |
35 | static OSSL_FUNC_keymgmt_new_fn ed448_new_key; | |
36 | static OSSL_FUNC_keymgmt_gen_init_fn x25519_gen_init; | |
37 | static OSSL_FUNC_keymgmt_gen_init_fn x448_gen_init; | |
38 | static OSSL_FUNC_keymgmt_gen_init_fn ed25519_gen_init; | |
39 | static OSSL_FUNC_keymgmt_gen_init_fn ed448_gen_init; | |
40 | static OSSL_FUNC_keymgmt_gen_fn x25519_gen; | |
41 | static OSSL_FUNC_keymgmt_gen_fn x448_gen; | |
42 | static OSSL_FUNC_keymgmt_gen_fn ed25519_gen; | |
43 | static OSSL_FUNC_keymgmt_gen_fn ed448_gen; | |
44 | static OSSL_FUNC_keymgmt_gen_cleanup_fn ecx_gen_cleanup; | |
f9562909 P |
45 | static OSSL_FUNC_keymgmt_gen_set_params_fn ecx_gen_set_params; |
46 | static OSSL_FUNC_keymgmt_gen_settable_params_fn ecx_gen_settable_params; | |
7c664b1f | 47 | static OSSL_FUNC_keymgmt_load_fn ecx_load; |
363b1e5d DMSP |
48 | static OSSL_FUNC_keymgmt_get_params_fn x25519_get_params; |
49 | static OSSL_FUNC_keymgmt_get_params_fn x448_get_params; | |
50 | static OSSL_FUNC_keymgmt_get_params_fn ed25519_get_params; | |
51 | static OSSL_FUNC_keymgmt_get_params_fn ed448_get_params; | |
52 | static OSSL_FUNC_keymgmt_gettable_params_fn x25519_gettable_params; | |
53 | static OSSL_FUNC_keymgmt_gettable_params_fn x448_gettable_params; | |
54 | static OSSL_FUNC_keymgmt_gettable_params_fn ed25519_gettable_params; | |
55 | static OSSL_FUNC_keymgmt_gettable_params_fn ed448_gettable_params; | |
56 | static OSSL_FUNC_keymgmt_set_params_fn x25519_set_params; | |
57 | static OSSL_FUNC_keymgmt_set_params_fn x448_set_params; | |
58 | static OSSL_FUNC_keymgmt_set_params_fn ed25519_set_params; | |
59 | static OSSL_FUNC_keymgmt_set_params_fn ed448_set_params; | |
60 | static OSSL_FUNC_keymgmt_settable_params_fn x25519_settable_params; | |
61 | static OSSL_FUNC_keymgmt_settable_params_fn x448_settable_params; | |
62 | static OSSL_FUNC_keymgmt_settable_params_fn ed25519_settable_params; | |
63 | static OSSL_FUNC_keymgmt_settable_params_fn ed448_settable_params; | |
64 | static OSSL_FUNC_keymgmt_has_fn ecx_has; | |
65 | static OSSL_FUNC_keymgmt_match_fn ecx_match; | |
f0591559 SL |
66 | static OSSL_FUNC_keymgmt_validate_fn x25519_validate; |
67 | static OSSL_FUNC_keymgmt_validate_fn x448_validate; | |
68 | static OSSL_FUNC_keymgmt_validate_fn ed25519_validate; | |
69 | static OSSL_FUNC_keymgmt_validate_fn ed448_validate; | |
363b1e5d DMSP |
70 | static OSSL_FUNC_keymgmt_import_fn ecx_import; |
71 | static OSSL_FUNC_keymgmt_import_types_fn ecx_imexport_types; | |
72 | static OSSL_FUNC_keymgmt_export_fn ecx_export; | |
73 | static OSSL_FUNC_keymgmt_export_types_fn ecx_imexport_types; | |
90d3cb57 | 74 | |
9a485440 TM |
75 | #define ECX_POSSIBLE_SELECTIONS (OSSL_KEYMGMT_SELECT_KEYPAIR) |
76 | ||
43cd3701 | 77 | struct ecx_gen_ctx { |
b4250010 | 78 | OSSL_LIB_CTX *libctx; |
8dbef010 | 79 | char *propq; |
43cd3701 | 80 | ECX_KEY_TYPE type; |
381f3f3b | 81 | int selection; |
43cd3701 P |
82 | }; |
83 | ||
c1e48c51 P |
84 | #ifdef S390X_EC_ASM |
85 | static void *s390x_ecx_keygen25519(struct ecx_gen_ctx *gctx); | |
86 | static void *s390x_ecx_keygen448(struct ecx_gen_ctx *gctx); | |
87 | static void *s390x_ecd_keygen25519(struct ecx_gen_ctx *gctx); | |
88 | static void *s390x_ecd_keygen448(struct ecx_gen_ctx *gctx); | |
89 | #endif | |
43cd3701 | 90 | |
90d3cb57 MC |
91 | static void *x25519_new_key(void *provctx) |
92 | { | |
422cbcee P |
93 | if (!ossl_prov_is_running()) |
94 | return 0; | |
32ab57cb SL |
95 | return ossl_ecx_key_new(PROV_LIBCTX_OF(provctx), ECX_KEY_TYPE_X25519, 0, |
96 | NULL); | |
90d3cb57 MC |
97 | } |
98 | ||
99 | static void *x448_new_key(void *provctx) | |
100 | { | |
422cbcee P |
101 | if (!ossl_prov_is_running()) |
102 | return 0; | |
32ab57cb SL |
103 | return ossl_ecx_key_new(PROV_LIBCTX_OF(provctx), ECX_KEY_TYPE_X448, 0, |
104 | NULL); | |
90d3cb57 MC |
105 | } |
106 | ||
af6d8dd3 MC |
107 | static void *ed25519_new_key(void *provctx) |
108 | { | |
422cbcee P |
109 | if (!ossl_prov_is_running()) |
110 | return 0; | |
32ab57cb SL |
111 | return ossl_ecx_key_new(PROV_LIBCTX_OF(provctx), ECX_KEY_TYPE_ED25519, 0, |
112 | NULL); | |
af6d8dd3 MC |
113 | } |
114 | ||
115 | static void *ed448_new_key(void *provctx) | |
116 | { | |
422cbcee P |
117 | if (!ossl_prov_is_running()) |
118 | return 0; | |
32ab57cb SL |
119 | return ossl_ecx_key_new(PROV_LIBCTX_OF(provctx), ECX_KEY_TYPE_ED448, 0, |
120 | NULL); | |
af6d8dd3 MC |
121 | } |
122 | ||
3d914185 | 123 | static int ecx_has(const void *keydata, int selection) |
90d3cb57 | 124 | { |
3d914185 | 125 | const ECX_KEY *key = keydata; |
adc9f731 | 126 | int ok = 0; |
90d3cb57 | 127 | |
422cbcee | 128 | if (ossl_prov_is_running() && key != NULL) { |
7fa2b267 MC |
129 | /* |
130 | * ECX keys always have all the parameters they need (i.e. none). | |
131 | * Therefore we always return with 1, if asked about parameters. | |
132 | */ | |
133 | ok = 1; | |
90d3cb57 | 134 | |
adc9f731 RL |
135 | if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) |
136 | ok = ok && key->haspubkey; | |
90d3cb57 | 137 | |
adc9f731 RL |
138 | if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) |
139 | ok = ok && key->privkey != NULL; | |
140 | } | |
90d3cb57 MC |
141 | return ok; |
142 | } | |
143 | ||
262ff123 MC |
144 | static int ecx_match(const void *keydata1, const void *keydata2, int selection) |
145 | { | |
146 | const ECX_KEY *key1 = keydata1; | |
147 | const ECX_KEY *key2 = keydata2; | |
148 | int ok = 1; | |
149 | ||
422cbcee P |
150 | if (!ossl_prov_is_running()) |
151 | return 0; | |
152 | ||
262ff123 MC |
153 | if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) |
154 | ok = ok && key1->type == key2->type; | |
155 | if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) { | |
156 | if ((key1->privkey == NULL && key2->privkey != NULL) | |
157 | || (key1->privkey != NULL && key2->privkey == NULL) | |
158 | || key1->type != key2->type) | |
159 | ok = 0; | |
160 | else | |
161 | ok = ok && (key1->privkey == NULL /* implies key2->privkey == NULL */ | |
162 | || CRYPTO_memcmp(key1->privkey, key2->privkey, | |
163 | key1->keylen) == 0); | |
164 | } | |
165 | if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) { | |
166 | if (key1->haspubkey != key2->haspubkey | |
167 | || key1->type != key2->type) | |
168 | ok = 0; | |
169 | else | |
170 | ok = ok && (key1->haspubkey == 0 /* implies key2->haspubkey == 0 */ | |
171 | || CRYPTO_memcmp(key1->pubkey, key2->pubkey, | |
172 | key1->keylen) == 0); | |
173 | } | |
174 | return ok; | |
175 | } | |
176 | ||
90d3cb57 MC |
177 | static int ecx_import(void *keydata, int selection, const OSSL_PARAM params[]) |
178 | { | |
179 | ECX_KEY *key = keydata; | |
0abae163 RL |
180 | int ok = 1; |
181 | int include_private = 0; | |
90d3cb57 | 182 | |
422cbcee | 183 | if (!ossl_prov_is_running() || key == NULL) |
90d3cb57 MC |
184 | return 0; |
185 | ||
969024b4 | 186 | if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0) |
90d3cb57 MC |
187 | return 0; |
188 | ||
0abae163 | 189 | include_private = ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0); |
32ab57cb | 190 | ok = ok && ossl_ecx_key_fromdata(key, params, include_private); |
90d3cb57 | 191 | |
0abae163 | 192 | return ok; |
90d3cb57 MC |
193 | } |
194 | ||
96ebe52e SL |
195 | static int key_to_params(ECX_KEY *key, OSSL_PARAM_BLD *tmpl, |
196 | OSSL_PARAM params[]) | |
90d3cb57 MC |
197 | { |
198 | if (key == NULL) | |
199 | return 0; | |
200 | ||
96ebe52e SL |
201 | if (!ossl_param_build_set_octet_string(tmpl, params, |
202 | OSSL_PKEY_PARAM_PUB_KEY, | |
203 | key->pubkey, key->keylen)) | |
90d3cb57 MC |
204 | return 0; |
205 | ||
206 | if (key->privkey != NULL | |
96ebe52e SL |
207 | && !ossl_param_build_set_octet_string(tmpl, params, |
208 | OSSL_PKEY_PARAM_PRIV_KEY, | |
209 | key->privkey, key->keylen)) | |
90d3cb57 MC |
210 | return 0; |
211 | ||
212 | return 1; | |
213 | } | |
214 | ||
215 | static int ecx_export(void *keydata, int selection, OSSL_CALLBACK *param_cb, | |
216 | void *cbarg) | |
217 | { | |
218 | ECX_KEY *key = keydata; | |
6d4e6009 | 219 | OSSL_PARAM_BLD *tmpl; |
90d3cb57 | 220 | OSSL_PARAM *params = NULL; |
96ebe52e | 221 | int ret = 0; |
90d3cb57 | 222 | |
422cbcee | 223 | if (!ossl_prov_is_running() || key == NULL) |
90d3cb57 MC |
224 | return 0; |
225 | ||
6d4e6009 P |
226 | tmpl = OSSL_PARAM_BLD_new(); |
227 | if (tmpl == NULL) | |
90d3cb57 MC |
228 | return 0; |
229 | ||
6d4e6009 | 230 | if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0 |
96ebe52e SL |
231 | && !key_to_params(key, tmpl, NULL)) |
232 | goto err; | |
233 | ||
6d4e6009 | 234 | params = OSSL_PARAM_BLD_to_param(tmpl); |
6d4e6009 | 235 | if (params == NULL) |
96ebe52e | 236 | goto err; |
6d4e6009 | 237 | |
90d3cb57 | 238 | ret = param_cb(params, cbarg); |
3f883c7c | 239 | OSSL_PARAM_free(params); |
96ebe52e SL |
240 | err: |
241 | OSSL_PARAM_BLD_free(tmpl); | |
90d3cb57 MC |
242 | return ret; |
243 | } | |
244 | ||
96ebe52e SL |
245 | #define ECX_KEY_TYPES() \ |
246 | OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PUB_KEY, NULL, 0), \ | |
247 | OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_PRIV_KEY, NULL, 0) | |
248 | ||
90d3cb57 | 249 | static const OSSL_PARAM ecx_key_types[] = { |
96ebe52e | 250 | ECX_KEY_TYPES(), |
90d3cb57 MC |
251 | OSSL_PARAM_END |
252 | }; | |
253 | static const OSSL_PARAM *ecx_imexport_types(int selection) | |
254 | { | |
255 | if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) != 0) | |
256 | return ecx_key_types; | |
257 | return NULL; | |
258 | } | |
259 | ||
96ebe52e | 260 | static int ecx_get_params(void *key, OSSL_PARAM params[], int bits, int secbits, |
90d3cb57 MC |
261 | int size) |
262 | { | |
96ebe52e | 263 | ECX_KEY *ecx = key; |
90d3cb57 MC |
264 | OSSL_PARAM *p; |
265 | ||
266 | if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_BITS)) != NULL | |
267 | && !OSSL_PARAM_set_int(p, bits)) | |
268 | return 0; | |
269 | if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_SECURITY_BITS)) != NULL | |
270 | && !OSSL_PARAM_set_int(p, secbits)) | |
271 | return 0; | |
272 | if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_MAX_SIZE)) != NULL | |
273 | && !OSSL_PARAM_set_int(p, size)) | |
274 | return 0; | |
5ac8fb58 | 275 | if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY)) != NULL |
6a9bd929 MC |
276 | && (ecx->type == ECX_KEY_TYPE_X25519 |
277 | || ecx->type == ECX_KEY_TYPE_X448)) { | |
278 | if (!OSSL_PARAM_set_octet_string(p, ecx->pubkey, ecx->keylen)) | |
279 | return 0; | |
280 | } | |
281 | ||
96ebe52e | 282 | return key_to_params(ecx, NULL, params); |
90d3cb57 MC |
283 | } |
284 | ||
1a7328c8 RL |
285 | static int ed_get_params(void *key, OSSL_PARAM params[]) |
286 | { | |
287 | OSSL_PARAM *p; | |
288 | ||
289 | if ((p = OSSL_PARAM_locate(params, | |
290 | OSSL_PKEY_PARAM_MANDATORY_DIGEST)) != NULL | |
291 | && !OSSL_PARAM_set_utf8_string(p, "")) | |
292 | return 0; | |
293 | return 1; | |
294 | } | |
295 | ||
90d3cb57 MC |
296 | static int x25519_get_params(void *key, OSSL_PARAM params[]) |
297 | { | |
96ebe52e SL |
298 | return ecx_get_params(key, params, X25519_BITS, X25519_SECURITY_BITS, |
299 | X25519_KEYLEN); | |
90d3cb57 MC |
300 | } |
301 | ||
302 | static int x448_get_params(void *key, OSSL_PARAM params[]) | |
303 | { | |
96ebe52e SL |
304 | return ecx_get_params(key, params, X448_BITS, X448_SECURITY_BITS, |
305 | X448_KEYLEN); | |
90d3cb57 MC |
306 | } |
307 | ||
af6d8dd3 MC |
308 | static int ed25519_get_params(void *key, OSSL_PARAM params[]) |
309 | { | |
96ebe52e | 310 | return ecx_get_params(key, params, ED25519_BITS, ED25519_SECURITY_BITS, |
1a7328c8 RL |
311 | ED25519_KEYLEN) |
312 | && ed_get_params(key, params); | |
af6d8dd3 MC |
313 | } |
314 | ||
315 | static int ed448_get_params(void *key, OSSL_PARAM params[]) | |
316 | { | |
96ebe52e | 317 | return ecx_get_params(key, params, ED448_BITS, ED448_SECURITY_BITS, |
1a7328c8 RL |
318 | ED448_KEYLEN) |
319 | && ed_get_params(key, params); | |
af6d8dd3 MC |
320 | } |
321 | ||
6a9bd929 | 322 | static const OSSL_PARAM ecx_gettable_params[] = { |
1a7328c8 RL |
323 | OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL), |
324 | OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL), | |
325 | OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL), | |
326 | OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_MANDATORY_DIGEST, NULL, 0), | |
5ac8fb58 | 327 | OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0), |
1a7328c8 RL |
328 | ECX_KEY_TYPES(), |
329 | OSSL_PARAM_END | |
330 | }; | |
331 | ||
6a9bd929 | 332 | static const OSSL_PARAM ed_gettable_params[] = { |
90d3cb57 MC |
333 | OSSL_PARAM_int(OSSL_PKEY_PARAM_BITS, NULL), |
334 | OSSL_PARAM_int(OSSL_PKEY_PARAM_SECURITY_BITS, NULL), | |
335 | OSSL_PARAM_int(OSSL_PKEY_PARAM_MAX_SIZE, NULL), | |
96ebe52e | 336 | ECX_KEY_TYPES(), |
90d3cb57 MC |
337 | OSSL_PARAM_END |
338 | }; | |
339 | ||
af5e1e85 | 340 | static const OSSL_PARAM *x25519_gettable_params(void *provctx) |
1a7328c8 | 341 | { |
6a9bd929 | 342 | return ecx_gettable_params; |
1a7328c8 RL |
343 | } |
344 | ||
af5e1e85 | 345 | static const OSSL_PARAM *x448_gettable_params(void *provctx) |
90d3cb57 | 346 | { |
6a9bd929 | 347 | return ecx_gettable_params; |
90d3cb57 MC |
348 | } |
349 | ||
af5e1e85 | 350 | static const OSSL_PARAM *ed25519_gettable_params(void *provctx) |
1a7328c8 | 351 | { |
6a9bd929 | 352 | return ed_gettable_params; |
1a7328c8 RL |
353 | } |
354 | ||
af5e1e85 | 355 | static const OSSL_PARAM *ed448_gettable_params(void *provctx) |
1a7328c8 | 356 | { |
6a9bd929 MC |
357 | return ed_gettable_params; |
358 | } | |
359 | ||
8dbef010 SL |
360 | static int set_property_query(ECX_KEY *ecxkey, const char *propq) |
361 | { | |
362 | OPENSSL_free(ecxkey->propq); | |
363 | ecxkey->propq = NULL; | |
364 | if (propq != NULL) { | |
365 | ecxkey->propq = OPENSSL_strdup(propq); | |
366 | if (ecxkey->propq == NULL) { | |
367 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); | |
368 | return 0; | |
369 | } | |
370 | } | |
371 | return 1; | |
372 | } | |
373 | ||
6a9bd929 MC |
374 | static int ecx_set_params(void *key, const OSSL_PARAM params[]) |
375 | { | |
376 | ECX_KEY *ecxkey = key; | |
377 | const OSSL_PARAM *p; | |
378 | ||
f9562909 P |
379 | if (params == NULL) |
380 | return 1; | |
381 | ||
5ac8fb58 | 382 | p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY); |
6a9bd929 MC |
383 | if (p != NULL) { |
384 | void *buf = ecxkey->pubkey; | |
385 | ||
386 | if (p->data_size != ecxkey->keylen | |
387 | || !OSSL_PARAM_get_octet_string(p, &buf, sizeof(ecxkey->pubkey), | |
388 | NULL)) | |
389 | return 0; | |
390 | OPENSSL_clear_free(ecxkey->privkey, ecxkey->keylen); | |
391 | ecxkey->privkey = NULL; | |
392 | ecxkey->haspubkey = 1; | |
393 | } | |
8dbef010 SL |
394 | p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PROPERTIES); |
395 | if (p != NULL) { | |
396 | if (p->data_type != OSSL_PARAM_UTF8_STRING | |
397 | || !set_property_query(ecxkey, p->data)) | |
398 | return 0; | |
399 | } | |
6a9bd929 MC |
400 | |
401 | return 1; | |
402 | } | |
403 | ||
404 | static int x25519_set_params(void *key, const OSSL_PARAM params[]) | |
405 | { | |
406 | return ecx_set_params(key, params); | |
407 | } | |
408 | ||
409 | static int x448_set_params(void *key, const OSSL_PARAM params[]) | |
410 | { | |
411 | return ecx_set_params(key, params); | |
412 | } | |
413 | ||
414 | static int ed25519_set_params(void *key, const OSSL_PARAM params[]) | |
415 | { | |
416 | return 1; | |
417 | } | |
418 | ||
419 | static int ed448_set_params(void *key, const OSSL_PARAM params[]) | |
420 | { | |
421 | return 1; | |
422 | } | |
423 | ||
424 | static const OSSL_PARAM ecx_settable_params[] = { | |
5ac8fb58 | 425 | OSSL_PARAM_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY, NULL, 0), |
8dbef010 | 426 | OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_PROPERTIES, NULL, 0), |
6a9bd929 MC |
427 | OSSL_PARAM_END |
428 | }; | |
429 | ||
430 | static const OSSL_PARAM ed_settable_params[] = { | |
431 | OSSL_PARAM_END | |
432 | }; | |
433 | ||
af5e1e85 | 434 | static const OSSL_PARAM *x25519_settable_params(void *provctx) |
6a9bd929 MC |
435 | { |
436 | return ecx_settable_params; | |
437 | } | |
438 | ||
af5e1e85 | 439 | static const OSSL_PARAM *x448_settable_params(void *provctx) |
6a9bd929 MC |
440 | { |
441 | return ecx_settable_params; | |
442 | } | |
443 | ||
af5e1e85 | 444 | static const OSSL_PARAM *ed25519_settable_params(void *provctx) |
6a9bd929 MC |
445 | { |
446 | return ed_settable_params; | |
447 | } | |
448 | ||
af5e1e85 | 449 | static const OSSL_PARAM *ed448_settable_params(void *provctx) |
6a9bd929 MC |
450 | { |
451 | return ed_settable_params; | |
1a7328c8 RL |
452 | } |
453 | ||
f9562909 P |
454 | static void *ecx_gen_init(void *provctx, int selection, |
455 | const OSSL_PARAM params[], ECX_KEY_TYPE type) | |
43cd3701 | 456 | { |
a829b735 | 457 | OSSL_LIB_CTX *libctx = PROV_LIBCTX_OF(provctx); |
43cd3701 P |
458 | struct ecx_gen_ctx *gctx = NULL; |
459 | ||
422cbcee P |
460 | if (!ossl_prov_is_running()) |
461 | return NULL; | |
462 | ||
8dbef010 | 463 | if ((gctx = OPENSSL_zalloc(sizeof(*gctx))) != NULL) { |
43cd3701 P |
464 | gctx->libctx = libctx; |
465 | gctx->type = type; | |
381f3f3b | 466 | gctx->selection = selection; |
43cd3701 | 467 | } |
f9562909 P |
468 | if (!ecx_gen_set_params(gctx, params)) { |
469 | OPENSSL_free(gctx); | |
470 | gctx = NULL; | |
471 | } | |
43cd3701 P |
472 | return gctx; |
473 | } | |
474 | ||
f9562909 P |
475 | static void *x25519_gen_init(void *provctx, int selection, |
476 | const OSSL_PARAM params[]) | |
43cd3701 | 477 | { |
f9562909 | 478 | return ecx_gen_init(provctx, selection, params, ECX_KEY_TYPE_X25519); |
43cd3701 P |
479 | } |
480 | ||
f9562909 P |
481 | static void *x448_gen_init(void *provctx, int selection, |
482 | const OSSL_PARAM params[]) | |
43cd3701 | 483 | { |
f9562909 | 484 | return ecx_gen_init(provctx, selection, params, ECX_KEY_TYPE_X448); |
43cd3701 P |
485 | } |
486 | ||
f9562909 P |
487 | static void *ed25519_gen_init(void *provctx, int selection, |
488 | const OSSL_PARAM params[]) | |
43cd3701 | 489 | { |
f9562909 | 490 | return ecx_gen_init(provctx, selection, params, ECX_KEY_TYPE_ED25519); |
43cd3701 P |
491 | } |
492 | ||
f9562909 P |
493 | static void *ed448_gen_init(void *provctx, int selection, |
494 | const OSSL_PARAM params[]) | |
43cd3701 | 495 | { |
f9562909 | 496 | return ecx_gen_init(provctx, selection, params, ECX_KEY_TYPE_ED448); |
43cd3701 P |
497 | } |
498 | ||
381f3f3b MC |
499 | static int ecx_gen_set_params(void *genctx, const OSSL_PARAM params[]) |
500 | { | |
501 | struct ecx_gen_ctx *gctx = genctx; | |
502 | const OSSL_PARAM *p; | |
503 | ||
504 | if (gctx == NULL) | |
505 | return 0; | |
506 | ||
507 | p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_GROUP_NAME); | |
508 | if (p != NULL) { | |
509 | const char *groupname = NULL; | |
510 | ||
511 | /* | |
512 | * We optionally allow setting a group name - but each algorithm only | |
513 | * support one such name, so all we do is verify that it is the one we | |
514 | * expected. | |
515 | */ | |
516 | switch (gctx->type) { | |
517 | case ECX_KEY_TYPE_X25519: | |
518 | groupname = "x25519"; | |
519 | break; | |
520 | case ECX_KEY_TYPE_X448: | |
521 | groupname = "x448"; | |
522 | break; | |
523 | default: | |
524 | /* We only support this for key exchange at the moment */ | |
525 | break; | |
526 | } | |
527 | if (p->data_type != OSSL_PARAM_UTF8_STRING | |
528 | || groupname == NULL | |
529 | || strcasecmp(p->data, groupname) != 0) { | |
530 | ERR_raise(ERR_LIB_PROV, ERR_R_PASSED_INVALID_ARGUMENT); | |
531 | return 0; | |
532 | } | |
533 | } | |
8dbef010 SL |
534 | p = OSSL_PARAM_locate_const(params, OSSL_KDF_PARAM_PROPERTIES); |
535 | if (p != NULL) { | |
536 | if (p->data_type != OSSL_PARAM_UTF8_STRING) | |
537 | return 0; | |
538 | OPENSSL_free(gctx->propq); | |
539 | gctx->propq = OPENSSL_strdup(p->data); | |
540 | if (gctx->propq == NULL) | |
541 | return 0; | |
542 | } | |
381f3f3b MC |
543 | |
544 | return 1; | |
545 | } | |
546 | ||
fb67126e TM |
547 | static const OSSL_PARAM *ecx_gen_settable_params(ossl_unused void *genctx, |
548 | ossl_unused void *provctx) | |
381f3f3b MC |
549 | { |
550 | static OSSL_PARAM settable[] = { | |
551 | OSSL_PARAM_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME, NULL, 0), | |
8dbef010 | 552 | OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_PROPERTIES, NULL, 0), |
381f3f3b MC |
553 | OSSL_PARAM_END |
554 | }; | |
555 | return settable; | |
556 | } | |
557 | ||
43cd3701 P |
558 | static void *ecx_gen(struct ecx_gen_ctx *gctx) |
559 | { | |
560 | ECX_KEY *key; | |
561 | unsigned char *privkey; | |
562 | ||
c1e48c51 P |
563 | if (gctx == NULL) |
564 | return NULL; | |
32ab57cb SL |
565 | if ((key = ossl_ecx_key_new(gctx->libctx, gctx->type, 0, |
566 | gctx->propq)) == NULL) { | |
c1e48c51 | 567 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 | 568 | return NULL; |
c1e48c51 | 569 | } |
381f3f3b MC |
570 | |
571 | /* If we're doing parameter generation then we just return a blank key */ | |
572 | if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0) | |
573 | return key; | |
574 | ||
32ab57cb | 575 | if ((privkey = ossl_ecx_key_allocate_privkey(key)) == NULL) { |
c1e48c51 P |
576 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
577 | goto err; | |
578 | } | |
579 | if (RAND_priv_bytes_ex(gctx->libctx, privkey, key->keylen) <= 0) | |
43cd3701 P |
580 | goto err; |
581 | switch (gctx->type) { | |
582 | case ECX_KEY_TYPE_X25519: | |
583 | privkey[0] &= 248; | |
584 | privkey[X25519_KEYLEN - 1] &= 127; | |
585 | privkey[X25519_KEYLEN - 1] |= 64; | |
054d43ff | 586 | ossl_x25519_public_from_private(key->pubkey, privkey); |
43cd3701 P |
587 | break; |
588 | case ECX_KEY_TYPE_X448: | |
589 | privkey[0] &= 252; | |
590 | privkey[X448_KEYLEN - 1] |= 128; | |
054d43ff | 591 | ossl_x448_public_from_private(key->pubkey, privkey); |
43cd3701 P |
592 | break; |
593 | case ECX_KEY_TYPE_ED25519: | |
054d43ff SL |
594 | if (!ossl_ed25519_public_from_private(gctx->libctx, key->pubkey, privkey, |
595 | gctx->propq)) | |
43cd3701 P |
596 | goto err; |
597 | break; | |
598 | case ECX_KEY_TYPE_ED448: | |
054d43ff SL |
599 | if (!ossl_ed448_public_from_private(gctx->libctx, key->pubkey, privkey, |
600 | gctx->propq)) | |
43cd3701 P |
601 | goto err; |
602 | break; | |
603 | } | |
381f3f3b | 604 | key->haspubkey = 1; |
43cd3701 P |
605 | return key; |
606 | err: | |
32ab57cb | 607 | ossl_ecx_key_free(key); |
43cd3701 P |
608 | return NULL; |
609 | } | |
610 | ||
611 | static void *x25519_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg) | |
612 | { | |
613 | struct ecx_gen_ctx *gctx = genctx; | |
614 | ||
422cbcee P |
615 | if (!ossl_prov_is_running()) |
616 | return 0; | |
617 | ||
43cd3701 P |
618 | #ifdef S390X_EC_ASM |
619 | if (OPENSSL_s390xcap_P.pcc[1] & S390X_CAPBIT(S390X_SCALAR_MULTIPLY_X25519)) | |
620 | return s390x_ecx_keygen25519(gctx); | |
621 | #endif | |
622 | return ecx_gen(gctx); | |
623 | } | |
624 | ||
625 | static void *x448_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg) | |
626 | { | |
627 | struct ecx_gen_ctx *gctx = genctx; | |
628 | ||
422cbcee P |
629 | if (!ossl_prov_is_running()) |
630 | return 0; | |
631 | ||
43cd3701 P |
632 | #ifdef S390X_EC_ASM |
633 | if (OPENSSL_s390xcap_P.pcc[1] & S390X_CAPBIT(S390X_SCALAR_MULTIPLY_X448)) | |
634 | return s390x_ecx_keygen448(gctx); | |
635 | #endif | |
636 | return ecx_gen(gctx); | |
637 | } | |
638 | ||
639 | static void *ed25519_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg) | |
640 | { | |
641 | struct ecx_gen_ctx *gctx = genctx; | |
422cbcee P |
642 | |
643 | if (!ossl_prov_is_running()) | |
644 | return 0; | |
645 | ||
43cd3701 P |
646 | #ifdef S390X_EC_ASM |
647 | if (OPENSSL_s390xcap_P.pcc[1] & S390X_CAPBIT(S390X_SCALAR_MULTIPLY_ED25519) | |
648 | && OPENSSL_s390xcap_P.kdsa[0] & S390X_CAPBIT(S390X_EDDSA_SIGN_ED25519) | |
649 | && OPENSSL_s390xcap_P.kdsa[0] | |
650 | & S390X_CAPBIT(S390X_EDDSA_VERIFY_ED25519)) | |
651 | return s390x_ecd_keygen25519(gctx); | |
652 | #endif | |
653 | return ecx_gen(gctx); | |
654 | } | |
655 | ||
656 | static void *ed448_gen(void *genctx, OSSL_CALLBACK *osslcb, void *cbarg) | |
657 | { | |
658 | struct ecx_gen_ctx *gctx = genctx; | |
659 | ||
422cbcee P |
660 | if (!ossl_prov_is_running()) |
661 | return 0; | |
662 | ||
43cd3701 P |
663 | #ifdef S390X_EC_ASM |
664 | if (OPENSSL_s390xcap_P.pcc[1] & S390X_CAPBIT(S390X_SCALAR_MULTIPLY_ED448) | |
665 | && OPENSSL_s390xcap_P.kdsa[0] & S390X_CAPBIT(S390X_EDDSA_SIGN_ED448) | |
666 | && OPENSSL_s390xcap_P.kdsa[0] & S390X_CAPBIT(S390X_EDDSA_VERIFY_ED448)) | |
667 | return s390x_ecd_keygen448(gctx); | |
668 | #endif | |
669 | return ecx_gen(gctx); | |
670 | } | |
671 | ||
672 | static void ecx_gen_cleanup(void *genctx) | |
673 | { | |
674 | struct ecx_gen_ctx *gctx = genctx; | |
675 | ||
8dbef010 | 676 | OPENSSL_free(gctx->propq); |
43cd3701 P |
677 | OPENSSL_free(gctx); |
678 | } | |
679 | ||
7c664b1f RL |
680 | void *ecx_load(const void *reference, size_t reference_sz) |
681 | { | |
682 | ECX_KEY *key = NULL; | |
683 | ||
422cbcee | 684 | if (ossl_prov_is_running() && reference_sz == sizeof(key)) { |
7c664b1f RL |
685 | /* The contents of the reference is the address to our object */ |
686 | key = *(ECX_KEY **)reference; | |
687 | /* We grabbed, so we detach it */ | |
688 | *(ECX_KEY **)reference = NULL; | |
689 | return key; | |
690 | } | |
691 | return NULL; | |
692 | } | |
693 | ||
f0591559 SL |
694 | static int ecx_key_pairwise_check(const ECX_KEY *ecx, int type) |
695 | { | |
696 | uint8_t pub[64]; | |
697 | ||
698 | switch (type) { | |
699 | case ECX_KEY_TYPE_X25519: | |
054d43ff | 700 | ossl_x25519_public_from_private(pub, ecx->privkey); |
f0591559 SL |
701 | break; |
702 | case ECX_KEY_TYPE_X448: | |
054d43ff | 703 | ossl_x448_public_from_private(pub, ecx->privkey); |
f0591559 SL |
704 | break; |
705 | case ECX_KEY_TYPE_ED25519: | |
054d43ff SL |
706 | if (!ossl_ed25519_public_from_private(ecx->libctx, pub, ecx->privkey, |
707 | ecx->propq)) | |
f0591559 SL |
708 | return 0; |
709 | break; | |
710 | case ECX_KEY_TYPE_ED448: | |
054d43ff SL |
711 | if (!ossl_ed448_public_from_private(ecx->libctx, pub, ecx->privkey, |
712 | ecx->propq)) | |
f0591559 SL |
713 | return 0; |
714 | break; | |
715 | default: | |
716 | return 0; | |
717 | } | |
718 | return CRYPTO_memcmp(ecx->pubkey, pub, ecx->keylen) == 0; | |
719 | } | |
720 | ||
721 | static int ecx_validate(const void *keydata, int selection, int type, size_t keylen) | |
722 | { | |
723 | const ECX_KEY *ecx = keydata; | |
9a485440 | 724 | int ok = keylen == ecx->keylen; |
f0591559 SL |
725 | |
726 | if (!ossl_prov_is_running()) | |
727 | return 0; | |
728 | ||
9a485440 TM |
729 | if ((selection & ECX_POSSIBLE_SELECTIONS) == 0) |
730 | return 1; /* nothing to validate */ | |
f0591559 | 731 | |
9a485440 TM |
732 | if (!ok) { |
733 | ERR_raise(ERR_LIB_PROV, PROV_R_ALGORITHM_MISMATCH); | |
734 | return 0; | |
735 | } | |
f0591559 SL |
736 | |
737 | if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) | |
738 | ok = ok && ecx->haspubkey; | |
739 | ||
740 | if ((selection & OSSL_KEYMGMT_SELECT_PRIVATE_KEY) != 0) | |
741 | ok = ok && ecx->privkey != NULL; | |
742 | ||
743 | if ((selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == OSSL_KEYMGMT_SELECT_KEYPAIR) | |
744 | ok = ok && ecx_key_pairwise_check(ecx, type); | |
745 | ||
746 | return ok; | |
747 | } | |
748 | ||
899e2564 | 749 | static int x25519_validate(const void *keydata, int selection, int checktype) |
f0591559 SL |
750 | { |
751 | return ecx_validate(keydata, selection, ECX_KEY_TYPE_X25519, X25519_KEYLEN); | |
752 | } | |
753 | ||
899e2564 | 754 | static int x448_validate(const void *keydata, int selection, int checktype) |
f0591559 SL |
755 | { |
756 | return ecx_validate(keydata, selection, ECX_KEY_TYPE_X448, X448_KEYLEN); | |
757 | } | |
758 | ||
899e2564 | 759 | static int ed25519_validate(const void *keydata, int selection, int checktype) |
f0591559 SL |
760 | { |
761 | return ecx_validate(keydata, selection, ECX_KEY_TYPE_ED25519, ED25519_KEYLEN); | |
762 | } | |
763 | ||
899e2564 | 764 | static int ed448_validate(const void *keydata, int selection, int checktype) |
f0591559 SL |
765 | { |
766 | return ecx_validate(keydata, selection, ECX_KEY_TYPE_ED448, ED448_KEYLEN); | |
767 | } | |
768 | ||
af6d8dd3 | 769 | #define MAKE_KEYMGMT_FUNCTIONS(alg) \ |
1be63951 | 770 | const OSSL_DISPATCH ossl_##alg##_keymgmt_functions[] = { \ |
af6d8dd3 | 771 | { OSSL_FUNC_KEYMGMT_NEW, (void (*)(void))alg##_new_key }, \ |
32ab57cb | 772 | { OSSL_FUNC_KEYMGMT_FREE, (void (*)(void))ossl_ecx_key_free }, \ |
af6d8dd3 | 773 | { OSSL_FUNC_KEYMGMT_GET_PARAMS, (void (*) (void))alg##_get_params }, \ |
1a7328c8 | 774 | { OSSL_FUNC_KEYMGMT_GETTABLE_PARAMS, (void (*) (void))alg##_gettable_params }, \ |
6a9bd929 MC |
775 | { OSSL_FUNC_KEYMGMT_SET_PARAMS, (void (*) (void))alg##_set_params }, \ |
776 | { OSSL_FUNC_KEYMGMT_SETTABLE_PARAMS, (void (*) (void))alg##_settable_params }, \ | |
af6d8dd3 | 777 | { OSSL_FUNC_KEYMGMT_HAS, (void (*)(void))ecx_has }, \ |
262ff123 | 778 | { OSSL_FUNC_KEYMGMT_MATCH, (void (*)(void))ecx_match }, \ |
f0591559 | 779 | { OSSL_FUNC_KEYMGMT_VALIDATE, (void (*)(void))alg##_validate }, \ |
af6d8dd3 MC |
780 | { OSSL_FUNC_KEYMGMT_IMPORT, (void (*)(void))ecx_import }, \ |
781 | { OSSL_FUNC_KEYMGMT_IMPORT_TYPES, (void (*)(void))ecx_imexport_types }, \ | |
782 | { OSSL_FUNC_KEYMGMT_EXPORT, (void (*)(void))ecx_export }, \ | |
783 | { OSSL_FUNC_KEYMGMT_EXPORT_TYPES, (void (*)(void))ecx_imexport_types }, \ | |
43cd3701 | 784 | { OSSL_FUNC_KEYMGMT_GEN_INIT, (void (*)(void))alg##_gen_init }, \ |
381f3f3b MC |
785 | { OSSL_FUNC_KEYMGMT_GEN_SET_PARAMS, (void (*)(void))ecx_gen_set_params }, \ |
786 | { OSSL_FUNC_KEYMGMT_GEN_SETTABLE_PARAMS, \ | |
787 | (void (*)(void))ecx_gen_settable_params }, \ | |
43cd3701 P |
788 | { OSSL_FUNC_KEYMGMT_GEN, (void (*)(void))alg##_gen }, \ |
789 | { OSSL_FUNC_KEYMGMT_GEN_CLEANUP, (void (*)(void))ecx_gen_cleanup }, \ | |
7c664b1f | 790 | { OSSL_FUNC_KEYMGMT_LOAD, (void (*)(void))ecx_load }, \ |
af6d8dd3 MC |
791 | { 0, NULL } \ |
792 | }; | |
793 | ||
794 | MAKE_KEYMGMT_FUNCTIONS(x25519) | |
795 | MAKE_KEYMGMT_FUNCTIONS(x448) | |
796 | MAKE_KEYMGMT_FUNCTIONS(ed25519) | |
797 | MAKE_KEYMGMT_FUNCTIONS(ed448) | |
43cd3701 P |
798 | |
799 | #ifdef S390X_EC_ASM | |
800 | # include "s390x_arch.h" | |
43cd3701 P |
801 | |
802 | static void *s390x_ecx_keygen25519(struct ecx_gen_ctx *gctx) | |
803 | { | |
804 | static const unsigned char generator[] = { | |
805 | 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
806 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
807 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
808 | }; | |
32ab57cb SL |
809 | ECX_KEY *key = ossl_ecx_key_new(gctx->libctx, ECX_KEY_TYPE_X25519, 1, |
810 | gctx->propq); | |
43cd3701 P |
811 | unsigned char *privkey = NULL, *pubkey; |
812 | ||
813 | if (key == NULL) { | |
c1e48c51 | 814 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
815 | goto err; |
816 | } | |
817 | ||
381f3f3b MC |
818 | /* If we're doing parameter generation then we just return a blank key */ |
819 | if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0) | |
820 | return key; | |
821 | ||
43cd3701 P |
822 | pubkey = key->pubkey; |
823 | ||
32ab57cb | 824 | privkey = ossl_ecx_key_allocate_privkey(key); |
43cd3701 | 825 | if (privkey == NULL) { |
c1e48c51 | 826 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
827 | goto err; |
828 | } | |
829 | ||
c1e48c51 | 830 | if (RAND_priv_bytes_ex(gctx->libctx, privkey, X25519_KEYLEN) <= 0) |
43cd3701 P |
831 | goto err; |
832 | ||
833 | privkey[0] &= 248; | |
834 | privkey[31] &= 127; | |
835 | privkey[31] |= 64; | |
836 | ||
837 | if (s390x_x25519_mul(pubkey, generator, privkey) != 1) | |
838 | goto err; | |
381f3f3b | 839 | key->haspubkey = 1; |
43cd3701 P |
840 | return key; |
841 | err: | |
32ab57cb | 842 | ossl_ecx_key_free(key); |
43cd3701 P |
843 | return NULL; |
844 | } | |
845 | ||
846 | static void *s390x_ecx_keygen448(struct ecx_gen_ctx *gctx) | |
847 | { | |
848 | static const unsigned char generator[] = { | |
849 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
850 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
851 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
852 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
853 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
854 | }; | |
32ab57cb SL |
855 | ECX_KEY *key = ossl_ecx_key_new(gctx->libctx, ECX_KEY_TYPE_X448, 1, |
856 | gctx->propq); | |
43cd3701 P |
857 | unsigned char *privkey = NULL, *pubkey; |
858 | ||
859 | if (key == NULL) { | |
c1e48c51 | 860 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
861 | goto err; |
862 | } | |
863 | ||
381f3f3b MC |
864 | /* If we're doing parameter generation then we just return a blank key */ |
865 | if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0) | |
866 | return key; | |
867 | ||
43cd3701 P |
868 | pubkey = key->pubkey; |
869 | ||
32ab57cb | 870 | privkey = ossl_ecx_key_allocate_privkey(key); |
43cd3701 | 871 | if (privkey == NULL) { |
c1e48c51 | 872 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
873 | goto err; |
874 | } | |
875 | ||
c1e48c51 | 876 | if (RAND_priv_bytes_ex(gctx->libctx, privkey, X448_KEYLEN) <= 0) |
43cd3701 P |
877 | goto err; |
878 | ||
879 | privkey[0] &= 252; | |
880 | privkey[55] |= 128; | |
881 | ||
882 | if (s390x_x448_mul(pubkey, generator, privkey) != 1) | |
883 | goto err; | |
381f3f3b | 884 | key->haspubkey = 1; |
43cd3701 P |
885 | return key; |
886 | err: | |
32ab57cb | 887 | ossl_ecx_key_free(key); |
43cd3701 P |
888 | return NULL; |
889 | } | |
890 | ||
891 | static void *s390x_ecd_keygen25519(struct ecx_gen_ctx *gctx) | |
892 | { | |
893 | static const unsigned char generator_x[] = { | |
894 | 0x1a, 0xd5, 0x25, 0x8f, 0x60, 0x2d, 0x56, 0xc9, 0xb2, 0xa7, 0x25, 0x95, | |
895 | 0x60, 0xc7, 0x2c, 0x69, 0x5c, 0xdc, 0xd6, 0xfd, 0x31, 0xe2, 0xa4, 0xc0, | |
896 | 0xfe, 0x53, 0x6e, 0xcd, 0xd3, 0x36, 0x69, 0x21 | |
897 | }; | |
898 | static const unsigned char generator_y[] = { | |
899 | 0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, | |
900 | 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, | |
901 | 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, | |
902 | }; | |
903 | unsigned char x_dst[32], buff[SHA512_DIGEST_LENGTH]; | |
32ab57cb SL |
904 | ECX_KEY *key = ossl_ecx_key_new(gctx->libctx, ECX_KEY_TYPE_ED25519, 1, |
905 | gctx->propq); | |
43cd3701 P |
906 | unsigned char *privkey = NULL, *pubkey; |
907 | unsigned int sz; | |
c1e48c51 P |
908 | EVP_MD *sha = NULL; |
909 | int j; | |
43cd3701 P |
910 | |
911 | if (key == NULL) { | |
c1e48c51 | 912 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
913 | goto err; |
914 | } | |
915 | ||
381f3f3b MC |
916 | /* If we're doing parameter generation then we just return a blank key */ |
917 | if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0) | |
918 | return key; | |
919 | ||
43cd3701 P |
920 | pubkey = key->pubkey; |
921 | ||
32ab57cb | 922 | privkey = ossl_ecx_key_allocate_privkey(key); |
43cd3701 | 923 | if (privkey == NULL) { |
c1e48c51 | 924 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
925 | goto err; |
926 | } | |
927 | ||
c1e48c51 | 928 | if (RAND_priv_bytes_ex(gctx->libctx, privkey, ED25519_KEYLEN) <= 0) |
43cd3701 P |
929 | goto err; |
930 | ||
8dbef010 | 931 | sha = EVP_MD_fetch(gctx->libctx, "SHA512", gctx->propq); |
c1e48c51 P |
932 | if (sha == NULL) |
933 | goto err; | |
934 | j = EVP_Digest(privkey, 32, buff, &sz, sha, NULL); | |
935 | EVP_MD_free(sha); | |
936 | if (!j) | |
43cd3701 P |
937 | goto err; |
938 | ||
939 | buff[0] &= 248; | |
940 | buff[31] &= 63; | |
941 | buff[31] |= 64; | |
942 | ||
943 | if (s390x_ed25519_mul(x_dst, pubkey, | |
944 | generator_x, generator_y, buff) != 1) | |
945 | goto err; | |
946 | ||
947 | pubkey[31] |= ((x_dst[0] & 0x01) << 7); | |
381f3f3b | 948 | key->haspubkey = 1; |
43cd3701 P |
949 | return key; |
950 | err: | |
32ab57cb | 951 | ossl_ecx_key_free(key); |
43cd3701 P |
952 | return NULL; |
953 | } | |
954 | ||
955 | static void *s390x_ecd_keygen448(struct ecx_gen_ctx *gctx) | |
956 | { | |
957 | static const unsigned char generator_x[] = { | |
958 | 0x5e, 0xc0, 0x0c, 0xc7, 0x2b, 0xa8, 0x26, 0x26, 0x8e, 0x93, 0x00, 0x8b, | |
959 | 0xe1, 0x80, 0x3b, 0x43, 0x11, 0x65, 0xb6, 0x2a, 0xf7, 0x1a, 0xae, 0x12, | |
960 | 0x64, 0xa4, 0xd3, 0xa3, 0x24, 0xe3, 0x6d, 0xea, 0x67, 0x17, 0x0f, 0x47, | |
961 | 0x70, 0x65, 0x14, 0x9e, 0xda, 0x36, 0xbf, 0x22, 0xa6, 0x15, 0x1d, 0x22, | |
962 | 0xed, 0x0d, 0xed, 0x6b, 0xc6, 0x70, 0x19, 0x4f, 0x00 | |
963 | }; | |
964 | static const unsigned char generator_y[] = { | |
965 | 0x14, 0xfa, 0x30, 0xf2, 0x5b, 0x79, 0x08, 0x98, 0xad, 0xc8, 0xd7, 0x4e, | |
966 | 0x2c, 0x13, 0xbd, 0xfd, 0xc4, 0x39, 0x7c, 0xe6, 0x1c, 0xff, 0xd3, 0x3a, | |
967 | 0xd7, 0xc2, 0xa0, 0x05, 0x1e, 0x9c, 0x78, 0x87, 0x40, 0x98, 0xa3, 0x6c, | |
968 | 0x73, 0x73, 0xea, 0x4b, 0x62, 0xc7, 0xc9, 0x56, 0x37, 0x20, 0x76, 0x88, | |
969 | 0x24, 0xbc, 0xb6, 0x6e, 0x71, 0x46, 0x3f, 0x69, 0x00 | |
970 | }; | |
971 | unsigned char x_dst[57], buff[114]; | |
32ab57cb SL |
972 | ECX_KEY *key = ossl_ecx_key_new(gctx->libctx, ECX_KEY_TYPE_ED448, 1, |
973 | gctx->propq); | |
43cd3701 P |
974 | unsigned char *privkey = NULL, *pubkey; |
975 | EVP_MD_CTX *hashctx = NULL; | |
c1e48c51 | 976 | EVP_MD *shake = NULL; |
43cd3701 P |
977 | |
978 | if (key == NULL) { | |
c1e48c51 | 979 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
980 | goto err; |
981 | } | |
982 | ||
381f3f3b MC |
983 | /* If we're doing parameter generation then we just return a blank key */ |
984 | if ((gctx->selection & OSSL_KEYMGMT_SELECT_KEYPAIR) == 0) | |
985 | return key; | |
986 | ||
43cd3701 P |
987 | pubkey = key->pubkey; |
988 | ||
32ab57cb | 989 | privkey = ossl_ecx_key_allocate_privkey(key); |
43cd3701 | 990 | if (privkey == NULL) { |
c1e48c51 | 991 | ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); |
43cd3701 P |
992 | goto err; |
993 | } | |
994 | ||
8dbef010 | 995 | shake = EVP_MD_fetch(gctx->libctx, "SHAKE256", gctx->propq); |
c1e48c51 P |
996 | if (shake == NULL) |
997 | goto err; | |
998 | if (RAND_priv_bytes_ex(gctx->libctx, privkey, ED448_KEYLEN) <= 0) | |
43cd3701 P |
999 | goto err; |
1000 | ||
1001 | hashctx = EVP_MD_CTX_new(); | |
1002 | if (hashctx == NULL) | |
1003 | goto err; | |
c1e48c51 | 1004 | if (EVP_DigestInit_ex(hashctx, shake, NULL) != 1) |
43cd3701 P |
1005 | goto err; |
1006 | if (EVP_DigestUpdate(hashctx, privkey, 57) != 1) | |
1007 | goto err; | |
1008 | if (EVP_DigestFinalXOF(hashctx, buff, sizeof(buff)) != 1) | |
1009 | goto err; | |
1010 | ||
1011 | buff[0] &= -4; | |
1012 | buff[55] |= 0x80; | |
1013 | buff[56] = 0; | |
1014 | ||
1015 | if (s390x_ed448_mul(x_dst, pubkey, | |
1016 | generator_x, generator_y, buff) != 1) | |
1017 | goto err; | |
1018 | ||
1019 | pubkey[56] |= ((x_dst[0] & 0x01) << 7); | |
43cd3701 | 1020 | EVP_MD_CTX_free(hashctx); |
c1e48c51 | 1021 | EVP_MD_free(shake); |
381f3f3b | 1022 | key->haspubkey = 1; |
43cd3701 P |
1023 | return key; |
1024 | err: | |
32ab57cb | 1025 | ossl_ecx_key_free(key); |
43cd3701 | 1026 | EVP_MD_CTX_free(hashctx); |
c1e48c51 | 1027 | EVP_MD_free(shake); |
43cd3701 P |
1028 | return NULL; |
1029 | } | |
1030 | #endif |