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35b73a1f | 1 | /* |
48e5119a | 2 | * Copyright 2002-2018 The OpenSSL Project Authors. All Rights Reserved. |
aa8f3d76 | 3 | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved |
6cc5e19d | 4 | * |
21dcbebc RS |
5 | * Licensed under the OpenSSL license (the "License"). You may not use |
6 | * this file except in compliance with the License. You can obtain a copy | |
7 | * in the file LICENSE in the source distribution or at | |
8 | * https://www.openssl.org/source/license.html | |
6cc5e19d | 9 | */ |
21dcbebc | 10 | |
6cc5e19d | 11 | #ifndef HEADER_EC_H |
0f113f3e | 12 | # define HEADER_EC_H |
6cc5e19d | 13 | |
0f113f3e | 14 | # include <openssl/opensslconf.h> |
87c9c659 | 15 | |
3c27208f | 16 | # ifndef OPENSSL_NO_EC |
0f113f3e MC |
17 | # include <openssl/asn1.h> |
18 | # include <openssl/symhacks.h> | |
98186eb4 | 19 | # if OPENSSL_API_COMPAT < 0x10100000L |
0f113f3e MC |
20 | # include <openssl/bn.h> |
21 | # endif | |
52df25cf | 22 | # include <openssl/ecerr.h> |
0f113f3e | 23 | # ifdef __cplusplus |
65e81670 | 24 | extern "C" { |
7f24b1c3 | 25 | # endif |
6cc5e19d | 26 | |
0f113f3e MC |
27 | # ifndef OPENSSL_ECC_MAX_FIELD_BITS |
28 | # define OPENSSL_ECC_MAX_FIELD_BITS 661 | |
29 | # endif | |
5e3225cc | 30 | |
ba12070f NL |
31 | /** Enum for the point conversion form as defined in X9.62 (ECDSA) |
32 | * for the encoding of a elliptic curve point (x,y) */ | |
3a12ce01 | 33 | typedef enum { |
0f113f3e | 34 | /** the point is encoded as z||x, where the octet z specifies |
ba12070f | 35 | * which solution of the quadratic equation y is */ |
0f113f3e | 36 | POINT_CONVERSION_COMPRESSED = 2, |
91d2728b | 37 | /** the point is encoded as z||x||y, where z is the octet 0x04 */ |
0f113f3e MC |
38 | POINT_CONVERSION_UNCOMPRESSED = 4, |
39 | /** the point is encoded as z||x||y, where the octet z specifies | |
40 | * which solution of the quadratic equation y is */ | |
41 | POINT_CONVERSION_HYBRID = 6 | |
3a12ce01 BM |
42 | } point_conversion_form_t; |
43 | ||
3a12ce01 | 44 | typedef struct ec_method_st EC_METHOD; |
60b350a3 | 45 | typedef struct ec_group_st EC_GROUP; |
3a12ce01 | 46 | typedef struct ec_point_st EC_POINT; |
60b350a3 RS |
47 | typedef struct ecpk_parameters_st ECPKPARAMETERS; |
48 | typedef struct ec_parameters_st ECPARAMETERS; | |
3a12ce01 | 49 | |
ba12070f | 50 | /********************************************************************/ |
0f113f3e | 51 | /* EC_METHODs for curves over GF(p) */ |
ba12070f NL |
52 | /********************************************************************/ |
53 | ||
54 | /** Returns the basic GFp ec methods which provides the basis for the | |
0f113f3e | 55 | * optimized methods. |
ba12070f | 56 | * \return EC_METHOD object |
3a12ce01 | 57 | */ |
3a12ce01 | 58 | const EC_METHOD *EC_GFp_simple_method(void); |
ba12070f NL |
59 | |
60 | /** Returns GFp methods using montgomery multiplication. | |
61 | * \return EC_METHOD object | |
62 | */ | |
3a12ce01 | 63 | const EC_METHOD *EC_GFp_mont_method(void); |
ba12070f NL |
64 | |
65 | /** Returns GFp methods using optimized methods for NIST recommended curves | |
66 | * \return EC_METHOD object | |
67 | */ | |
5c6bf031 | 68 | const EC_METHOD *EC_GFp_nist_method(void); |
3a12ce01 | 69 | |
0f113f3e | 70 | # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 |
04daec86 BM |
71 | /** Returns 64-bit optimized methods for nistp224 |
72 | * \return EC_METHOD object | |
73 | */ | |
74 | const EC_METHOD *EC_GFp_nistp224_method(void); | |
3e00b4c9 BM |
75 | |
76 | /** Returns 64-bit optimized methods for nistp256 | |
77 | * \return EC_METHOD object | |
78 | */ | |
79 | const EC_METHOD *EC_GFp_nistp256_method(void); | |
80 | ||
81 | /** Returns 64-bit optimized methods for nistp521 | |
82 | * \return EC_METHOD object | |
83 | */ | |
84 | const EC_METHOD *EC_GFp_nistp521_method(void); | |
0f113f3e | 85 | # endif |
ba12070f | 86 | |
0f113f3e MC |
87 | # ifndef OPENSSL_NO_EC2M |
88 | /********************************************************************/ | |
ba12070f NL |
89 | /* EC_METHOD for curves over GF(2^m) */ |
90 | /********************************************************************/ | |
91 | ||
0f113f3e | 92 | /** Returns the basic GF2m ec method |
ba12070f | 93 | * \return EC_METHOD object |
7793f30e BM |
94 | */ |
95 | const EC_METHOD *EC_GF2m_simple_method(void); | |
96 | ||
0f113f3e | 97 | # endif |
3a12ce01 | 98 | |
ba12070f NL |
99 | /********************************************************************/ |
100 | /* EC_GROUP functions */ | |
101 | /********************************************************************/ | |
102 | ||
103 | /** Creates a new EC_GROUP object | |
104 | * \param meth EC_METHOD to use | |
105 | * \return newly created EC_GROUP object or NULL in case of an error. | |
106 | */ | |
107 | EC_GROUP *EC_GROUP_new(const EC_METHOD *meth); | |
108 | ||
109 | /** Frees a EC_GROUP object | |
110 | * \param group EC_GROUP object to be freed. | |
111 | */ | |
112 | void EC_GROUP_free(EC_GROUP *group); | |
113 | ||
114 | /** Clears and frees a EC_GROUP object | |
115 | * \param group EC_GROUP object to be cleared and freed. | |
116 | */ | |
117 | void EC_GROUP_clear_free(EC_GROUP *group); | |
118 | ||
119 | /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD. | |
120 | * \param dst destination EC_GROUP object | |
121 | * \param src source EC_GROUP object | |
122 | * \return 1 on success and 0 if an error occurred. | |
123 | */ | |
124 | int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src); | |
125 | ||
126 | /** Creates a new EC_GROUP object and copies the copies the content | |
127 | * form src to the newly created EC_KEY object | |
128 | * \param src source EC_GROUP object | |
129 | * \return newly created EC_GROUP object or NULL in case of an error. | |
130 | */ | |
131 | EC_GROUP *EC_GROUP_dup(const EC_GROUP *src); | |
132 | ||
133 | /** Returns the EC_METHOD of the EC_GROUP object. | |
0f113f3e | 134 | * \param group EC_GROUP object |
ba12070f NL |
135 | * \return EC_METHOD used in this EC_GROUP object. |
136 | */ | |
137 | const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); | |
138 | ||
139 | /** Returns the field type of the EC_METHOD. | |
140 | * \param meth EC_METHOD object | |
141 | * \return NID of the underlying field type OID. | |
142 | */ | |
143 | int EC_METHOD_get_field_type(const EC_METHOD *meth); | |
144 | ||
145 | /** Sets the generator and it's order/cofactor of a EC_GROUP object. | |
0f113f3e | 146 | * \param group EC_GROUP object |
ba12070f NL |
147 | * \param generator EC_POINT object with the generator. |
148 | * \param order the order of the group generated by the generator. | |
149 | * \param cofactor the index of the sub-group generated by the generator | |
150 | * in the group of all points on the elliptic curve. | |
478b50cf | 151 | * \return 1 on success and 0 if an error occurred |
ba12070f | 152 | */ |
0f113f3e MC |
153 | int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, |
154 | const BIGNUM *order, const BIGNUM *cofactor); | |
ba12070f NL |
155 | |
156 | /** Returns the generator of a EC_GROUP object. | |
157 | * \param group EC_GROUP object | |
158 | * \return the currently used generator (possibly NULL). | |
159 | */ | |
160 | const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group); | |
161 | ||
f54be179 AP |
162 | /** Returns the montgomery data for order(Generator) |
163 | * \param group EC_GROUP object | |
14f46560 | 164 | * \return the currently used montgomery data (possibly NULL). |
f54be179 AP |
165 | */ |
166 | BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group); | |
167 | ||
ba12070f NL |
168 | /** Gets the order of a EC_GROUP |
169 | * \param group EC_GROUP object | |
170 | * \param order BIGNUM to which the order is copied | |
a773b52a | 171 | * \param ctx unused |
478b50cf | 172 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
173 | */ |
174 | int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); | |
48fe4d62 | 175 | |
be2e334f DSH |
176 | /** Gets the order of an EC_GROUP |
177 | * \param group EC_GROUP object | |
178 | * \return the group order | |
179 | */ | |
be2e334f DSH |
180 | const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group); |
181 | ||
8483a003 | 182 | /** Gets the number of bits of the order of an EC_GROUP |
be2e334f DSH |
183 | * \param group EC_GROUP object |
184 | * \return number of bits of group order. | |
185 | */ | |
be2e334f DSH |
186 | int EC_GROUP_order_bits(const EC_GROUP *group); |
187 | ||
ba12070f NL |
188 | /** Gets the cofactor of a EC_GROUP |
189 | * \param group EC_GROUP object | |
190 | * \param cofactor BIGNUM to which the cofactor is copied | |
a773b52a | 191 | * \param ctx unused |
478b50cf | 192 | * \return 1 on success and 0 if an error occurred |
ba12070f | 193 | */ |
0f113f3e MC |
194 | int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, |
195 | BN_CTX *ctx); | |
b6db386f | 196 | |
be2e334f DSH |
197 | /** Gets the cofactor of an EC_GROUP |
198 | * \param group EC_GROUP object | |
199 | * \return the group cofactor | |
200 | */ | |
be2e334f DSH |
201 | const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group); |
202 | ||
ba12070f NL |
203 | /** Sets the name of a EC_GROUP object |
204 | * \param group EC_GROUP object | |
205 | * \param nid NID of the curve name OID | |
206 | */ | |
207 | void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); | |
b6db386f | 208 | |
ba12070f NL |
209 | /** Returns the curve name of a EC_GROUP object |
210 | * \param group EC_GROUP object | |
211 | * \return NID of the curve name OID or 0 if not set. | |
212 | */ | |
213 | int EC_GROUP_get_curve_name(const EC_GROUP *group); | |
945e15a2 | 214 | |
ba12070f NL |
215 | void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); |
216 | int EC_GROUP_get_asn1_flag(const EC_GROUP *group); | |
5f3d6f70 | 217 | |
0f113f3e MC |
218 | void EC_GROUP_set_point_conversion_form(EC_GROUP *group, |
219 | point_conversion_form_t form); | |
5f3d6f70 BM |
220 | point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *); |
221 | ||
9945b460 | 222 | unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x); |
5f3d6f70 BM |
223 | size_t EC_GROUP_get_seed_len(const EC_GROUP *); |
224 | size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); | |
48fe4d62 | 225 | |
ba12070f NL |
226 | /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b |
227 | * \param group EC_GROUP object | |
228 | * \param p BIGNUM with the prime number | |
229 | * \param a BIGNUM with parameter a of the equation | |
230 | * \param b BIGNUM with parameter b of the equation | |
231 | * \param ctx BN_CTX object (optional) | |
478b50cf | 232 | * \return 1 on success and 0 if an error occurred |
ba12070f | 233 | */ |
0f113f3e MC |
234 | int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, |
235 | const BIGNUM *b, BN_CTX *ctx); | |
ba12070f NL |
236 | |
237 | /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b | |
238 | * \param group EC_GROUP object | |
239 | * \param p BIGNUM for the prime number | |
240 | * \param a BIGNUM for parameter a of the equation | |
241 | * \param b BIGNUM for parameter b of the equation | |
242 | * \param ctx BN_CTX object (optional) | |
478b50cf | 243 | * \return 1 on success and 0 if an error occurred |
ba12070f | 244 | */ |
0f113f3e MC |
245 | int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, |
246 | BIGNUM *b, BN_CTX *ctx); | |
ba12070f | 247 | |
0f113f3e | 248 | # ifndef OPENSSL_NO_EC2M |
ba12070f NL |
249 | /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b |
250 | * \param group EC_GROUP object | |
251 | * \param p BIGNUM with the polynomial defining the underlying field | |
252 | * \param a BIGNUM with parameter a of the equation | |
253 | * \param b BIGNUM with parameter b of the equation | |
254 | * \param ctx BN_CTX object (optional) | |
478b50cf | 255 | * \return 1 on success and 0 if an error occurred |
ba12070f | 256 | */ |
0f113f3e MC |
257 | int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, |
258 | const BIGNUM *b, BN_CTX *ctx); | |
ba12070f NL |
259 | |
260 | /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b | |
261 | * \param group EC_GROUP object | |
262 | * \param p BIGNUM for the polynomial defining the underlying field | |
263 | * \param a BIGNUM for parameter a of the equation | |
264 | * \param b BIGNUM for parameter b of the equation | |
265 | * \param ctx BN_CTX object (optional) | |
478b50cf | 266 | * \return 1 on success and 0 if an error occurred |
ba12070f | 267 | */ |
0f113f3e MC |
268 | int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, |
269 | BIGNUM *b, BN_CTX *ctx); | |
270 | # endif | |
271 | /** Returns the number of bits needed to represent a field element | |
ba12070f NL |
272 | * \param group EC_GROUP object |
273 | * \return number of bits needed to represent a field element | |
274 | */ | |
275 | int EC_GROUP_get_degree(const EC_GROUP *group); | |
3a12ce01 | 276 | |
ba12070f NL |
277 | /** Checks whether the parameter in the EC_GROUP define a valid ec group |
278 | * \param group EC_GROUP object | |
279 | * \param ctx BN_CTX object (optional) | |
280 | * \return 1 if group is a valid ec group and 0 otherwise | |
281 | */ | |
af28dd6c | 282 | int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx); |
945e15a2 | 283 | |
ba12070f NL |
284 | /** Checks whether the discriminant of the elliptic curve is zero or not |
285 | * \param group EC_GROUP object | |
286 | * \param ctx BN_CTX object (optional) | |
287 | * \return 1 if the discriminant is not zero and 0 otherwise | |
288 | */ | |
289 | int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx); | |
290 | ||
291 | /** Compares two EC_GROUP objects | |
292 | * \param a first EC_GROUP object | |
293 | * \param b second EC_GROUP object | |
294 | * \param ctx BN_CTX object (optional) | |
14f46560 | 295 | * \return 0 if the groups are equal, 1 if not, or -1 on error |
ba12070f NL |
296 | */ |
297 | int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx); | |
ada0e717 | 298 | |
0f113f3e MC |
299 | /* |
300 | * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after | |
301 | * choosing an appropriate EC_METHOD | |
302 | */ | |
945e15a2 | 303 | |
ba12070f NL |
304 | /** Creates a new EC_GROUP object with the specified parameters defined |
305 | * over GFp (defined by the equation y^2 = x^3 + a*x + b) | |
306 | * \param p BIGNUM with the prime number | |
307 | * \param a BIGNUM with the parameter a of the equation | |
308 | * \param b BIGNUM with the parameter b of the equation | |
309 | * \param ctx BN_CTX object (optional) | |
310 | * \return newly created EC_GROUP object with the specified parameters | |
311 | */ | |
0f113f3e MC |
312 | EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, |
313 | const BIGNUM *b, BN_CTX *ctx); | |
314 | # ifndef OPENSSL_NO_EC2M | |
ba12070f NL |
315 | /** Creates a new EC_GROUP object with the specified parameters defined |
316 | * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) | |
317 | * \param p BIGNUM with the polynomial defining the underlying field | |
318 | * \param a BIGNUM with the parameter a of the equation | |
319 | * \param b BIGNUM with the parameter b of the equation | |
320 | * \param ctx BN_CTX object (optional) | |
321 | * \return newly created EC_GROUP object with the specified parameters | |
322 | */ | |
0f113f3e MC |
323 | EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, |
324 | const BIGNUM *b, BN_CTX *ctx); | |
325 | # endif | |
60b350a3 | 326 | |
ba12070f NL |
327 | /** Creates a EC_GROUP object with a curve specified by a NID |
328 | * \param nid NID of the OID of the curve name | |
329 | * \return newly created EC_GROUP object with specified curve or NULL | |
330 | * if an error occurred | |
331 | */ | |
8b15c740 | 332 | EC_GROUP *EC_GROUP_new_by_curve_name(int nid); |
ba12070f | 333 | |
60b350a3 RS |
334 | /** Creates a new EC_GROUP object from an ECPARAMETERS object |
335 | * \param params pointer to the ECPARAMETERS object | |
336 | * \return newly created EC_GROUP object with specified curve or NULL | |
337 | * if an error occurred | |
338 | */ | |
339 | EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params); | |
340 | ||
436ad81f | 341 | /** Creates an ECPARAMETERS object for the given EC_GROUP object. |
60b350a3 RS |
342 | * \param group pointer to the EC_GROUP object |
343 | * \param params pointer to an existing ECPARAMETERS object or NULL | |
344 | * \return pointer to the new ECPARAMETERS object or NULL | |
345 | * if an error occurred. | |
346 | */ | |
347 | ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group, | |
348 | ECPARAMETERS *params); | |
349 | ||
350 | /** Creates a new EC_GROUP object from an ECPKPARAMETERS object | |
351 | * \param params pointer to an existing ECPKPARAMETERS object, or NULL | |
352 | * \return newly created EC_GROUP object with specified curve, or NULL | |
353 | * if an error occurred | |
354 | */ | |
355 | EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params); | |
356 | ||
436ad81f | 357 | /** Creates an ECPKPARAMETERS object for the given EC_GROUP object. |
60b350a3 RS |
358 | * \param group pointer to the EC_GROUP object |
359 | * \param params pointer to an existing ECPKPARAMETERS object or NULL | |
360 | * \return pointer to the new ECPKPARAMETERS object or NULL | |
361 | * if an error occurred. | |
362 | */ | |
363 | ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, | |
364 | ECPKPARAMETERS *params); | |
365 | ||
ba12070f NL |
366 | /********************************************************************/ |
367 | /* handling of internal curves */ | |
368 | /********************************************************************/ | |
369 | ||
0f113f3e MC |
370 | typedef struct { |
371 | int nid; | |
372 | const char *comment; | |
373 | } EC_builtin_curve; | |
ba12070f | 374 | |
0f113f3e MC |
375 | /* |
376 | * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all | |
8483a003 | 377 | * available curves or zero if a error occurred. In case r is not zero, |
0f113f3e MC |
378 | * nitems EC_builtin_curve structures are filled with the data of the first |
379 | * nitems internal groups | |
380 | */ | |
65b1d31d | 381 | size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems); |
7eb18f12 | 382 | |
64095ce9 DSH |
383 | const char *EC_curve_nid2nist(int nid); |
384 | int EC_curve_nist2nid(const char *name); | |
7e31164a | 385 | |
ba12070f NL |
386 | /********************************************************************/ |
387 | /* EC_POINT functions */ | |
388 | /********************************************************************/ | |
389 | ||
390 | /** Creates a new EC_POINT object for the specified EC_GROUP | |
391 | * \param group EC_GROUP the underlying EC_GROUP object | |
392 | * \return newly created EC_POINT object or NULL if an error occurred | |
393 | */ | |
394 | EC_POINT *EC_POINT_new(const EC_GROUP *group); | |
395 | ||
396 | /** Frees a EC_POINT object | |
397 | * \param point EC_POINT object to be freed | |
398 | */ | |
399 | void EC_POINT_free(EC_POINT *point); | |
400 | ||
401 | /** Clears and frees a EC_POINT object | |
402 | * \param point EC_POINT object to be cleared and freed | |
403 | */ | |
404 | void EC_POINT_clear_free(EC_POINT *point); | |
405 | ||
406 | /** Copies EC_POINT object | |
407 | * \param dst destination EC_POINT object | |
408 | * \param src source EC_POINT object | |
478b50cf | 409 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
410 | */ |
411 | int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); | |
945e15a2 | 412 | |
ba12070f NL |
413 | /** Creates a new EC_POINT object and copies the content of the supplied |
414 | * EC_POINT | |
415 | * \param src source EC_POINT object | |
416 | * \param group underlying the EC_GROUP object | |
0f113f3e | 417 | * \return newly created EC_POINT object or NULL if an error occurred |
ba12070f NL |
418 | */ |
419 | EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group); | |
0f113f3e MC |
420 | |
421 | /** Returns the EC_METHOD used in EC_POINT object | |
ba12070f NL |
422 | * \param point EC_POINT object |
423 | * \return the EC_METHOD used | |
424 | */ | |
425 | const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); | |
426 | ||
427 | /** Sets a point to infinity (neutral element) | |
428 | * \param group underlying EC_GROUP object | |
429 | * \param point EC_POINT to set to infinity | |
478b50cf | 430 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
431 | */ |
432 | int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); | |
433 | ||
434 | /** Sets the jacobian projective coordinates of a EC_POINT over GFp | |
435 | * \param group underlying EC_GROUP object | |
436 | * \param p EC_POINT object | |
437 | * \param x BIGNUM with the x-coordinate | |
438 | * \param y BIGNUM with the y-coordinate | |
439 | * \param z BIGNUM with the z-coordinate | |
440 | * \param ctx BN_CTX object (optional) | |
478b50cf | 441 | * \return 1 on success and 0 if an error occurred |
ba12070f | 442 | */ |
0f113f3e MC |
443 | int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, |
444 | EC_POINT *p, const BIGNUM *x, | |
445 | const BIGNUM *y, const BIGNUM *z, | |
446 | BN_CTX *ctx); | |
ba12070f NL |
447 | |
448 | /** Gets the jacobian projective coordinates of a EC_POINT over GFp | |
449 | * \param group underlying EC_GROUP object | |
450 | * \param p EC_POINT object | |
451 | * \param x BIGNUM for the x-coordinate | |
452 | * \param y BIGNUM for the y-coordinate | |
453 | * \param z BIGNUM for the z-coordinate | |
454 | * \param ctx BN_CTX object (optional) | |
478b50cf | 455 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
456 | */ |
457 | int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, | |
0f113f3e MC |
458 | const EC_POINT *p, BIGNUM *x, |
459 | BIGNUM *y, BIGNUM *z, | |
460 | BN_CTX *ctx); | |
ba12070f NL |
461 | |
462 | /** Sets the affine coordinates of a EC_POINT over GFp | |
463 | * \param group underlying EC_GROUP object | |
464 | * \param p EC_POINT object | |
465 | * \param x BIGNUM with the x-coordinate | |
466 | * \param y BIGNUM with the y-coordinate | |
467 | * \param ctx BN_CTX object (optional) | |
478b50cf | 468 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
469 | */ |
470 | int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, | |
0f113f3e MC |
471 | const BIGNUM *x, const BIGNUM *y, |
472 | BN_CTX *ctx); | |
ba12070f NL |
473 | |
474 | /** Gets the affine coordinates of a EC_POINT over GFp | |
475 | * \param group underlying EC_GROUP object | |
476 | * \param p EC_POINT object | |
477 | * \param x BIGNUM for the x-coordinate | |
478 | * \param y BIGNUM for the y-coordinate | |
479 | * \param ctx BN_CTX object (optional) | |
478b50cf | 480 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
481 | */ |
482 | int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, | |
0f113f3e MC |
483 | const EC_POINT *p, BIGNUM *x, |
484 | BIGNUM *y, BN_CTX *ctx); | |
ba12070f NL |
485 | |
486 | /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp | |
487 | * \param group underlying EC_GROUP object | |
488 | * \param p EC_POINT object | |
489 | * \param x BIGNUM with x-coordinate | |
490 | * \param y_bit integer with the y-Bit (either 0 or 1) | |
491 | * \param ctx BN_CTX object (optional) | |
478b50cf | 492 | * \return 1 on success and 0 if an error occurred |
ba12070f | 493 | */ |
0f113f3e MC |
494 | int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, |
495 | EC_POINT *p, const BIGNUM *x, | |
496 | int y_bit, BN_CTX *ctx); | |
497 | # ifndef OPENSSL_NO_EC2M | |
ba12070f NL |
498 | /** Sets the affine coordinates of a EC_POINT over GF2m |
499 | * \param group underlying EC_GROUP object | |
500 | * \param p EC_POINT object | |
501 | * \param x BIGNUM with the x-coordinate | |
502 | * \param y BIGNUM with the y-coordinate | |
503 | * \param ctx BN_CTX object (optional) | |
478b50cf | 504 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
505 | */ |
506 | int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, | |
0f113f3e MC |
507 | const BIGNUM *x, const BIGNUM *y, |
508 | BN_CTX *ctx); | |
ba12070f NL |
509 | |
510 | /** Gets the affine coordinates of a EC_POINT over GF2m | |
511 | * \param group underlying EC_GROUP object | |
512 | * \param p EC_POINT object | |
513 | * \param x BIGNUM for the x-coordinate | |
514 | * \param y BIGNUM for the y-coordinate | |
515 | * \param ctx BN_CTX object (optional) | |
478b50cf | 516 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
517 | */ |
518 | int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group, | |
0f113f3e MC |
519 | const EC_POINT *p, BIGNUM *x, |
520 | BIGNUM *y, BN_CTX *ctx); | |
ba12070f NL |
521 | |
522 | /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m | |
523 | * \param group underlying EC_GROUP object | |
524 | * \param p EC_POINT object | |
525 | * \param x BIGNUM with x-coordinate | |
526 | * \param y_bit integer with the y-Bit (either 0 or 1) | |
527 | * \param ctx BN_CTX object (optional) | |
478b50cf | 528 | * \return 1 on success and 0 if an error occurred |
ba12070f | 529 | */ |
0f113f3e MC |
530 | int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, |
531 | EC_POINT *p, const BIGNUM *x, | |
532 | int y_bit, BN_CTX *ctx); | |
533 | # endif | |
ba12070f NL |
534 | /** Encodes a EC_POINT object to a octet string |
535 | * \param group underlying EC_GROUP object | |
536 | * \param p EC_POINT object | |
537 | * \param form point conversion form | |
538 | * \param buf memory buffer for the result. If NULL the function returns | |
539 | * required buffer size. | |
540 | * \param len length of the memory buffer | |
541 | * \param ctx BN_CTX object (optional) | |
542 | * \return the length of the encoded octet string or 0 if an error occurred | |
543 | */ | |
544 | size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, | |
0f113f3e MC |
545 | point_conversion_form_t form, |
546 | unsigned char *buf, size_t len, BN_CTX *ctx); | |
ba12070f NL |
547 | |
548 | /** Decodes a EC_POINT from a octet string | |
549 | * \param group underlying EC_GROUP object | |
550 | * \param p EC_POINT object | |
551 | * \param buf memory buffer with the encoded ec point | |
552 | * \param len length of the encoded ec point | |
553 | * \param ctx BN_CTX object (optional) | |
478b50cf | 554 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
555 | */ |
556 | int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, | |
0f113f3e | 557 | const unsigned char *buf, size_t len, BN_CTX *ctx); |
7d7db13e | 558 | |
981bd8a2 DSH |
559 | /** Encodes an EC_POINT object to an allocated octet string |
560 | * \param group underlying EC_GROUP object | |
561 | * \param point EC_POINT object | |
562 | * \param form point conversion form | |
563 | * \param pbuf returns pointer to allocated buffer | |
981bd8a2 DSH |
564 | * \param ctx BN_CTX object (optional) |
565 | * \return the length of the encoded octet string or 0 if an error occurred | |
566 | */ | |
981bd8a2 DSH |
567 | size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point, |
568 | point_conversion_form_t form, | |
569 | unsigned char **pbuf, BN_CTX *ctx); | |
570 | ||
6cbe6382 BM |
571 | /* other interfaces to point2oct/oct2point: */ |
572 | BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *, | |
0f113f3e | 573 | point_conversion_form_t form, BIGNUM *, BN_CTX *); |
6cbe6382 | 574 | EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *, |
0f113f3e | 575 | EC_POINT *, BN_CTX *); |
6cbe6382 | 576 | char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *, |
0f113f3e | 577 | point_conversion_form_t form, BN_CTX *); |
6cbe6382 | 578 | EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, |
0f113f3e | 579 | EC_POINT *, BN_CTX *); |
3a12ce01 | 580 | |
ba12070f NL |
581 | /********************************************************************/ |
582 | /* functions for doing EC_POINT arithmetic */ | |
583 | /********************************************************************/ | |
584 | ||
0f113f3e | 585 | /** Computes the sum of two EC_POINT |
ba12070f NL |
586 | * \param group underlying EC_GROUP object |
587 | * \param r EC_POINT object for the result (r = a + b) | |
588 | * \param a EC_POINT object with the first summand | |
589 | * \param b EC_POINT object with the second summand | |
590 | * \param ctx BN_CTX object (optional) | |
478b50cf | 591 | * \return 1 on success and 0 if an error occurred |
ba12070f | 592 | */ |
0f113f3e MC |
593 | int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, |
594 | const EC_POINT *b, BN_CTX *ctx); | |
ba12070f NL |
595 | |
596 | /** Computes the double of a EC_POINT | |
597 | * \param group underlying EC_GROUP object | |
598 | * \param r EC_POINT object for the result (r = 2 * a) | |
0f113f3e | 599 | * \param a EC_POINT object |
ba12070f | 600 | * \param ctx BN_CTX object (optional) |
478b50cf | 601 | * \return 1 on success and 0 if an error occurred |
ba12070f | 602 | */ |
0f113f3e MC |
603 | int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, |
604 | BN_CTX *ctx); | |
ba12070f NL |
605 | |
606 | /** Computes the inverse of a EC_POINT | |
607 | * \param group underlying EC_GROUP object | |
608 | * \param a EC_POINT object to be inverted (it's used for the result as well) | |
609 | * \param ctx BN_CTX object (optional) | |
478b50cf | 610 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
611 | */ |
612 | int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); | |
613 | ||
614 | /** Checks whether the point is the neutral element of the group | |
615 | * \param group the underlying EC_GROUP object | |
616 | * \param p EC_POINT object | |
617 | * \return 1 if the point is the neutral element and 0 otherwise | |
618 | */ | |
619 | int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); | |
620 | ||
0f113f3e | 621 | /** Checks whether the point is on the curve |
ba12070f NL |
622 | * \param group underlying EC_GROUP object |
623 | * \param point EC_POINT object to check | |
624 | * \param ctx BN_CTX object (optional) | |
14f46560 | 625 | * \return 1 if the point is on the curve, 0 if not, or -1 on error |
ba12070f | 626 | */ |
0f113f3e MC |
627 | int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, |
628 | BN_CTX *ctx); | |
ba12070f | 629 | |
0f113f3e | 630 | /** Compares two EC_POINTs |
ba12070f NL |
631 | * \param group underlying EC_GROUP object |
632 | * \param a first EC_POINT object | |
633 | * \param b second EC_POINT object | |
634 | * \param ctx BN_CTX object (optional) | |
14f46560 | 635 | * \return 1 if the points are not equal, 0 if they are, or -1 on error |
ba12070f | 636 | */ |
0f113f3e MC |
637 | int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, |
638 | BN_CTX *ctx); | |
fb171e53 | 639 | |
9945b460 | 640 | int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx); |
0f113f3e MC |
641 | int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, |
642 | EC_POINT *points[], BN_CTX *ctx); | |
fb171e53 | 643 | |
14f46560 | 644 | /** Computes r = generator * n + sum_{i=0}^{num-1} p[i] * m[i] |
ba12070f NL |
645 | * \param group underlying EC_GROUP object |
646 | * \param r EC_POINT object for the result | |
647 | * \param n BIGNUM with the multiplier for the group generator (optional) | |
8483a003 | 648 | * \param num number further summands |
ba12070f NL |
649 | * \param p array of size num of EC_POINT objects |
650 | * \param m array of size num of BIGNUM objects | |
651 | * \param ctx BN_CTX object (optional) | |
478b50cf | 652 | * \return 1 on success and 0 if an error occurred |
ba12070f | 653 | */ |
0f113f3e MC |
654 | int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, |
655 | size_t num, const EC_POINT *p[], const BIGNUM *m[], | |
656 | BN_CTX *ctx); | |
ba12070f NL |
657 | |
658 | /** Computes r = generator * n + q * m | |
659 | * \param group underlying EC_GROUP object | |
660 | * \param r EC_POINT object for the result | |
661 | * \param n BIGNUM with the multiplier for the group generator (optional) | |
662 | * \param q EC_POINT object with the first factor of the second summand | |
663 | * \param m BIGNUM with the second factor of the second summand | |
664 | * \param ctx BN_CTX object (optional) | |
478b50cf | 665 | * \return 1 on success and 0 if an error occurred |
ba12070f | 666 | */ |
0f113f3e MC |
667 | int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, |
668 | const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); | |
3a12ce01 | 669 | |
ba12070f NL |
670 | /** Stores multiples of generator for faster point multiplication |
671 | * \param group EC_GROUP object | |
672 | * \param ctx BN_CTX object (optional) | |
478b50cf | 673 | * \return 1 on success and 0 if an error occurred |
ba12070f NL |
674 | */ |
675 | int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); | |
6cc5e19d | 676 | |
ba12070f NL |
677 | /** Reports whether a precomputation has been done |
678 | * \param group EC_GROUP object | |
679 | * \return 1 if a pre-computation has been done and 0 otherwise | |
680 | */ | |
681 | int EC_GROUP_have_precompute_mult(const EC_GROUP *group); | |
6cc5e19d | 682 | |
ba12070f NL |
683 | /********************************************************************/ |
684 | /* ASN1 stuff */ | |
685 | /********************************************************************/ | |
8aefe253 | 686 | |
60b350a3 | 687 | DECLARE_ASN1_ITEM(ECPKPARAMETERS) |
9ba6f347 | 688 | DECLARE_ASN1_ALLOC_FUNCTIONS(ECPKPARAMETERS) |
60b350a3 | 689 | DECLARE_ASN1_ITEM(ECPARAMETERS) |
9ba6f347 | 690 | DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) |
60b350a3 | 691 | |
0f113f3e MC |
692 | /* |
693 | * EC_GROUP_get_basis_type() returns the NID of the basis type used to | |
694 | * represent the field elements | |
695 | */ | |
34f1f2a8 | 696 | int EC_GROUP_get_basis_type(const EC_GROUP *); |
0f113f3e | 697 | # ifndef OPENSSL_NO_EC2M |
34f1f2a8 | 698 | int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k); |
0f113f3e MC |
699 | int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, |
700 | unsigned int *k2, unsigned int *k3); | |
701 | # endif | |
8aefe253 | 702 | |
86f300d3 DSH |
703 | # define OPENSSL_EC_EXPLICIT_CURVE 0x000 |
704 | # define OPENSSL_EC_NAMED_CURVE 0x001 | |
458c2917 | 705 | |
6343829a | 706 | EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); |
458c2917 BM |
707 | int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); |
708 | ||
0f113f3e MC |
709 | # define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x) |
710 | # define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x) | |
711 | # define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \ | |
5dbd3efc | 712 | (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x)) |
0f113f3e MC |
713 | # define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \ |
714 | (unsigned char *)(x)) | |
5f3d6f70 | 715 | |
0f113f3e | 716 | int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off); |
0f113f3e MC |
717 | # ifndef OPENSSL_NO_STDIO |
718 | int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off); | |
719 | # endif | |
ba12070f NL |
720 | |
721 | /********************************************************************/ | |
722 | /* EC_KEY functions */ | |
723 | /********************************************************************/ | |
724 | ||
14a7cfb3 | 725 | /* some values for the encoding_flag */ |
0f113f3e MC |
726 | # define EC_PKEY_NO_PARAMETERS 0x001 |
727 | # define EC_PKEY_NO_PUBKEY 0x002 | |
14a7cfb3 | 728 | |
cac4fb58 | 729 | /* some values for the flags field */ |
0f113f3e MC |
730 | # define EC_FLAG_NON_FIPS_ALLOW 0x1 |
731 | # define EC_FLAG_FIPS_CHECKED 0x2 | |
a22a7e70 | 732 | # define EC_FLAG_COFACTOR_ECDH 0x1000 |
cac4fb58 | 733 | |
ba12070f NL |
734 | /** Creates a new EC_KEY object. |
735 | * \return EC_KEY object or NULL if an error occurred. | |
736 | */ | |
14a7cfb3 | 737 | EC_KEY *EC_KEY_new(void); |
ba12070f | 738 | |
cac4fb58 DSH |
739 | int EC_KEY_get_flags(const EC_KEY *key); |
740 | ||
741 | void EC_KEY_set_flags(EC_KEY *key, int flags); | |
742 | ||
743 | void EC_KEY_clear_flags(EC_KEY *key, int flags); | |
744 | ||
ba12070f NL |
745 | /** Creates a new EC_KEY object using a named curve as underlying |
746 | * EC_GROUP object. | |
747 | * \param nid NID of the named curve. | |
0f113f3e | 748 | * \return EC_KEY object or NULL if an error occurred. |
ba12070f | 749 | */ |
9dd84053 | 750 | EC_KEY *EC_KEY_new_by_curve_name(int nid); |
ba12070f NL |
751 | |
752 | /** Frees a EC_KEY object. | |
753 | * \param key EC_KEY object to be freed. | |
754 | */ | |
755 | void EC_KEY_free(EC_KEY *key); | |
756 | ||
757 | /** Copies a EC_KEY object. | |
758 | * \param dst destination EC_KEY object | |
759 | * \param src src EC_KEY object | |
760 | * \return dst or NULL if an error occurred. | |
761 | */ | |
4a9a0d9b | 762 | EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); |
ba12070f NL |
763 | |
764 | /** Creates a new EC_KEY object and copies the content from src to it. | |
765 | * \param src the source EC_KEY object | |
766 | * \return newly created EC_KEY object or NULL if an error occurred. | |
767 | */ | |
4a9a0d9b | 768 | EC_KEY *EC_KEY_dup(const EC_KEY *src); |
ba12070f NL |
769 | |
770 | /** Increases the internal reference count of a EC_KEY object. | |
771 | * \param key EC_KEY object | |
772 | * \return 1 on success and 0 if an error occurred. | |
773 | */ | |
774 | int EC_KEY_up_ref(EC_KEY *key); | |
775 | ||
d1da335c | 776 | /** Returns the ENGINE object of a EC_KEY object |
28c0a61b | 777 | * \param eckey EC_KEY object |
d1da335c RL |
778 | * \return the ENGINE object (possibly NULL). |
779 | */ | |
780 | ENGINE *EC_KEY_get0_engine(const EC_KEY *eckey); | |
781 | ||
ba12070f NL |
782 | /** Returns the EC_GROUP object of a EC_KEY object |
783 | * \param key EC_KEY object | |
784 | * \return the EC_GROUP object (possibly NULL). | |
785 | */ | |
786 | const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key); | |
787 | ||
788 | /** Sets the EC_GROUP of a EC_KEY object. | |
789 | * \param key EC_KEY object | |
790 | * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY | |
791 | * object will use an own copy of the EC_GROUP). | |
792 | * \return 1 on success and 0 if an error occurred. | |
793 | */ | |
794 | int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group); | |
795 | ||
796 | /** Returns the private key of a EC_KEY object. | |
797 | * \param key EC_KEY object | |
798 | * \return a BIGNUM with the private key (possibly NULL). | |
799 | */ | |
800 | const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key); | |
801 | ||
802 | /** Sets the private key of a EC_KEY object. | |
803 | * \param key EC_KEY object | |
804 | * \param prv BIGNUM with the private key (note: the EC_KEY object | |
805 | * will use an own copy of the BIGNUM). | |
806 | * \return 1 on success and 0 if an error occurred. | |
807 | */ | |
808 | int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv); | |
809 | ||
810 | /** Returns the public key of a EC_KEY object. | |
811 | * \param key the EC_KEY object | |
812 | * \return a EC_POINT object with the public key (possibly NULL) | |
813 | */ | |
814 | const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key); | |
815 | ||
816 | /** Sets the public key of a EC_KEY object. | |
817 | * \param key EC_KEY object | |
818 | * \param pub EC_POINT object with the public key (note: the EC_KEY object | |
819 | * will use an own copy of the EC_POINT object). | |
820 | * \return 1 on success and 0 if an error occurred. | |
821 | */ | |
822 | int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub); | |
823 | ||
824 | unsigned EC_KEY_get_enc_flags(const EC_KEY *key); | |
9945b460 DSH |
825 | void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags); |
826 | point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key); | |
827 | void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform); | |
3aef36ff RS |
828 | |
829 | #define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \ | |
830 | CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef) | |
831 | int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg); | |
832 | void *EC_KEY_get_ex_data(const EC_KEY *key, int idx); | |
833 | ||
9dd84053 | 834 | /* wrapper functions for the underlying EC_GROUP object */ |
9945b460 | 835 | void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag); |
ba12070f | 836 | |
0f113f3e | 837 | /** Creates a table of pre-computed multiples of the generator to |
ba12070f NL |
838 | * accelerate further EC_KEY operations. |
839 | * \param key EC_KEY object | |
840 | * \param ctx BN_CTX object (optional) | |
841 | * \return 1 on success and 0 if an error occurred. | |
842 | */ | |
843 | int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx); | |
844 | ||
845 | /** Creates a new ec private (and optional a new public) key. | |
846 | * \param key EC_KEY object | |
847 | * \return 1 on success and 0 if an error occurred. | |
848 | */ | |
849 | int EC_KEY_generate_key(EC_KEY *key); | |
850 | ||
851 | /** Verifies that a private and/or public key is valid. | |
852 | * \param key the EC_KEY object | |
853 | * \return 1 on success and 0 otherwise. | |
854 | */ | |
855 | int EC_KEY_check_key(const EC_KEY *key); | |
856 | ||
4b0555ec | 857 | /** Indicates if an EC_KEY can be used for signing. |
f5fd3848 | 858 | * \param eckey the EC_KEY object |
4b0555ec DSH |
859 | * \return 1 if can can sign and 0 otherwise. |
860 | */ | |
861 | int EC_KEY_can_sign(const EC_KEY *eckey); | |
862 | ||
8483a003 | 863 | /** Sets a public key from affine coordinates performing |
478b50cf | 864 | * necessary NIST PKV tests. |
fef1c40b DSH |
865 | * \param key the EC_KEY object |
866 | * \param x public key x coordinate | |
867 | * \param y public key y coordinate | |
868 | * \return 1 on success and 0 otherwise. | |
869 | */ | |
0f113f3e MC |
870 | int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x, |
871 | BIGNUM *y); | |
ba12070f | 872 | |
981bd8a2 DSH |
873 | /** Encodes an EC_KEY public key to an allocated octet string |
874 | * \param key key to encode | |
875 | * \param form point conversion form | |
876 | * \param pbuf returns pointer to allocated buffer | |
981bd8a2 DSH |
877 | * \param ctx BN_CTX object (optional) |
878 | * \return the length of the encoded octet string or 0 if an error occurred | |
879 | */ | |
981bd8a2 DSH |
880 | size_t EC_KEY_key2buf(const EC_KEY *key, point_conversion_form_t form, |
881 | unsigned char **pbuf, BN_CTX *ctx); | |
882 | ||
883 | /** Decodes a EC_KEY public key from a octet string | |
884 | * \param key key to decode | |
885 | * \param buf memory buffer with the encoded ec point | |
886 | * \param len length of the encoded ec point | |
887 | * \param ctx BN_CTX object (optional) | |
888 | * \return 1 on success and 0 if an error occurred | |
889 | */ | |
890 | ||
891 | int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf, size_t len, | |
892 | BN_CTX *ctx); | |
893 | ||
cf241395 DSH |
894 | /** Decodes an EC_KEY private key from an octet string |
895 | * \param key key to decode | |
896 | * \param buf memory buffer with the encoded private key | |
897 | * \param len length of the encoded key | |
898 | * \return 1 on success and 0 if an error occurred | |
899 | */ | |
900 | ||
25d57dc7 | 901 | int EC_KEY_oct2priv(EC_KEY *key, const unsigned char *buf, size_t len); |
cf241395 DSH |
902 | |
903 | /** Encodes a EC_KEY private key to an octet string | |
904 | * \param key key to encode | |
905 | * \param buf memory buffer for the result. If NULL the function returns | |
906 | * required buffer size. | |
907 | * \param len length of the memory buffer | |
908 | * \return the length of the encoded octet string or 0 if an error occurred | |
909 | */ | |
910 | ||
911 | size_t EC_KEY_priv2oct(const EC_KEY *key, unsigned char *buf, size_t len); | |
912 | ||
7fc7d1a7 | 913 | /** Encodes an EC_KEY private key to an allocated octet string |
f5fd3848 | 914 | * \param eckey key to encode |
7fc7d1a7 DSH |
915 | * \param pbuf returns pointer to allocated buffer |
916 | * \return the length of the encoded octet string or 0 if an error occurred | |
917 | */ | |
7fc7d1a7 | 918 | size_t EC_KEY_priv2buf(const EC_KEY *eckey, unsigned char **pbuf); |
cf241395 | 919 | |
ba12070f NL |
920 | /********************************************************************/ |
921 | /* de- and encoding functions for SEC1 ECPrivateKey */ | |
922 | /********************************************************************/ | |
923 | ||
924 | /** Decodes a private key from a memory buffer. | |
925 | * \param key a pointer to a EC_KEY object which should be used (or NULL) | |
926 | * \param in pointer to memory with the DER encoded private key | |
927 | * \param len length of the DER encoded private key | |
928 | * \return the decoded private key or NULL if an error occurred. | |
929 | */ | |
6343829a | 930 | EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len); |
ba12070f NL |
931 | |
932 | /** Encodes a private key object and stores the result in a buffer. | |
933 | * \param key the EC_KEY object to encode | |
934 | * \param out the buffer for the result (if NULL the function returns number | |
935 | * of bytes needed). | |
936 | * \return 1 on success and 0 if an error occurred. | |
937 | */ | |
938 | int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out); | |
939 | ||
ba12070f NL |
940 | /********************************************************************/ |
941 | /* de- and encoding functions for EC parameters */ | |
942 | /********************************************************************/ | |
943 | ||
944 | /** Decodes ec parameter from a memory buffer. | |
945 | * \param key a pointer to a EC_KEY object which should be used (or NULL) | |
946 | * \param in pointer to memory with the DER encoded ec parameters | |
947 | * \param len length of the DER encoded ec parameters | |
948 | * \return a EC_KEY object with the decoded parameters or NULL if an error | |
949 | * occurred. | |
950 | */ | |
951 | EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len); | |
952 | ||
953 | /** Encodes ec parameter and stores the result in a buffer. | |
1afd7fa9 | 954 | * \param key the EC_KEY object with ec parameters to encode |
ba12070f NL |
955 | * \param out the buffer for the result (if NULL the function returns number |
956 | * of bytes needed). | |
957 | * \return 1 on success and 0 if an error occurred. | |
958 | */ | |
959 | int i2d_ECParameters(EC_KEY *key, unsigned char **out); | |
960 | ||
ba12070f NL |
961 | /********************************************************************/ |
962 | /* de- and encoding functions for EC public key */ | |
963 | /* (octet string, not DER -- hence 'o2i' and 'i2o') */ | |
964 | /********************************************************************/ | |
965 | ||
966 | /** Decodes a ec public key from a octet string. | |
967 | * \param key a pointer to a EC_KEY object which should be used | |
968 | * \param in memory buffer with the encoded public key | |
969 | * \param len length of the encoded public key | |
970 | * \return EC_KEY object with decoded public key or NULL if an error | |
971 | * occurred. | |
972 | */ | |
973 | EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len); | |
974 | ||
975 | /** Encodes a ec public key in an octet string. | |
976 | * \param key the EC_KEY object with the public key | |
977 | * \param out the buffer for the result (if NULL the function returns number | |
978 | * of bytes needed). | |
979 | * \return 1 on success and 0 if an error occurred | |
980 | */ | |
60c25873 | 981 | int i2o_ECPublicKey(const EC_KEY *key, unsigned char **out); |
14a7cfb3 | 982 | |
ba12070f NL |
983 | /** Prints out the ec parameters on human readable form. |
984 | * \param bp BIO object to which the information is printed | |
985 | * \param key EC_KEY object | |
986 | * \return 1 on success and 0 if an error occurred | |
987 | */ | |
0f113f3e | 988 | int ECParameters_print(BIO *bp, const EC_KEY *key); |
ba12070f NL |
989 | |
990 | /** Prints out the contents of a EC_KEY object | |
991 | * \param bp BIO object to which the information is printed | |
992 | * \param key EC_KEY object | |
0f113f3e | 993 | * \param off line offset |
ba12070f NL |
994 | * \return 1 on success and 0 if an error occurred |
995 | */ | |
0f113f3e | 996 | int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); |
ba12070f | 997 | |
0f113f3e | 998 | # ifndef OPENSSL_NO_STDIO |
ba12070f NL |
999 | /** Prints out the ec parameters on human readable form. |
1000 | * \param fp file descriptor to which the information is printed | |
1001 | * \param key EC_KEY object | |
1002 | * \return 1 on success and 0 if an error occurred | |
1003 | */ | |
0f113f3e | 1004 | int ECParameters_print_fp(FILE *fp, const EC_KEY *key); |
ba12070f NL |
1005 | |
1006 | /** Prints out the contents of a EC_KEY object | |
1007 | * \param fp file descriptor to which the information is printed | |
1008 | * \param key EC_KEY object | |
0f113f3e | 1009 | * \param off line offset |
ba12070f NL |
1010 | * \return 1 on success and 0 if an error occurred |
1011 | */ | |
0f113f3e | 1012 | int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); |
ba12070f | 1013 | |
0f113f3e | 1014 | # endif |
0bee0e62 | 1015 | |
28572b57 DSH |
1016 | const EC_KEY_METHOD *EC_KEY_OpenSSL(void); |
1017 | const EC_KEY_METHOD *EC_KEY_get_default_method(void); | |
1018 | void EC_KEY_set_default_method(const EC_KEY_METHOD *meth); | |
3aef36ff RS |
1019 | const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key); |
1020 | int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth); | |
28572b57 DSH |
1021 | EC_KEY *EC_KEY_new_method(ENGINE *engine); |
1022 | ||
768c53e1 DSH |
1023 | int ECDH_KDF_X9_62(unsigned char *out, size_t outlen, |
1024 | const unsigned char *Z, size_t Zlen, | |
1025 | const unsigned char *sinfo, size_t sinfolen, | |
1026 | const EVP_MD *md); | |
1027 | ||
a22a7e70 | 1028 | int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key, |
2c61a5ec DSH |
1029 | const EC_KEY *ecdh, |
1030 | void *(*KDF) (const void *in, size_t inlen, | |
1031 | void *out, size_t *outlen)); | |
a22a7e70 | 1032 | |
714b2abb DSH |
1033 | typedef struct ECDSA_SIG_st ECDSA_SIG; |
1034 | ||
ef5b2ba6 DSH |
1035 | /** Allocates and initialize a ECDSA_SIG structure |
1036 | * \return pointer to a ECDSA_SIG structure or NULL if an error occurred | |
1037 | */ | |
1038 | ECDSA_SIG *ECDSA_SIG_new(void); | |
1039 | ||
1040 | /** frees a ECDSA_SIG structure | |
1041 | * \param sig pointer to the ECDSA_SIG structure | |
1042 | */ | |
1043 | void ECDSA_SIG_free(ECDSA_SIG *sig); | |
1044 | ||
1045 | /** DER encode content of ECDSA_SIG object (note: this function modifies *pp | |
1046 | * (*pp += length of the DER encoded signature)). | |
1047 | * \param sig pointer to the ECDSA_SIG object | |
1048 | * \param pp pointer to a unsigned char pointer for the output or NULL | |
1049 | * \return the length of the DER encoded ECDSA_SIG object or 0 | |
1050 | */ | |
1051 | int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp); | |
1052 | ||
1053 | /** Decodes a DER encoded ECDSA signature (note: this function changes *pp | |
1054 | * (*pp += len)). | |
1055 | * \param sig pointer to ECDSA_SIG pointer (may be NULL) | |
1056 | * \param pp memory buffer with the DER encoded signature | |
1057 | * \param len length of the buffer | |
1058 | * \return pointer to the decoded ECDSA_SIG structure (or NULL) | |
1059 | */ | |
1060 | ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len); | |
1061 | ||
7236e3c8 | 1062 | /** Accessor for r and s fields of ECDSA_SIG |
0396401d | 1063 | * \param sig pointer to ECDSA_SIG structure |
7236e3c8 DSH |
1064 | * \param pr pointer to BIGNUM pointer for r (may be NULL) |
1065 | * \param ps pointer to BIGNUM pointer for s (may be NULL) | |
1066 | */ | |
9267c11b | 1067 | void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); |
7236e3c8 | 1068 | |
0396401d DMSP |
1069 | /** Accessor for r field of ECDSA_SIG |
1070 | * \param sig pointer to ECDSA_SIG structure | |
1071 | */ | |
1072 | const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig); | |
1073 | ||
1074 | /** Accessor for s field of ECDSA_SIG | |
1075 | * \param sig pointer to ECDSA_SIG structure | |
1076 | */ | |
1077 | const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig); | |
1078 | ||
6a571a18 | 1079 | /** Setter for r and s fields of ECDSA_SIG |
0396401d | 1080 | * \param sig pointer to ECDSA_SIG structure |
a0cef658 DMSP |
1081 | * \param r pointer to BIGNUM for r (may be NULL) |
1082 | * \param s pointer to BIGNUM for s (may be NULL) | |
6a571a18 | 1083 | */ |
1d454d58 | 1084 | int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s); |
6a571a18 | 1085 | |
180eec16 DSH |
1086 | /** Computes the ECDSA signature of the given hash value using |
1087 | * the supplied private key and returns the created signature. | |
1088 | * \param dgst pointer to the hash value | |
1089 | * \param dgst_len length of the hash value | |
1090 | * \param eckey EC_KEY object containing a private EC key | |
1091 | * \return pointer to a ECDSA_SIG structure or NULL if an error occurred | |
1092 | */ | |
1093 | ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len, | |
1094 | EC_KEY *eckey); | |
1095 | ||
1096 | /** Computes ECDSA signature of a given hash value using the supplied | |
1097 | * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). | |
1098 | * \param dgst pointer to the hash value to sign | |
1099 | * \param dgstlen length of the hash value | |
1100 | * \param kinv BIGNUM with a pre-computed inverse k (optional) | |
8483a003 | 1101 | * \param rp BIGNUM with a pre-computed rp value (optional), |
180eec16 DSH |
1102 | * see ECDSA_sign_setup |
1103 | * \param eckey EC_KEY object containing a private EC key | |
1104 | * \return pointer to a ECDSA_SIG structure or NULL if an error occurred | |
1105 | */ | |
1106 | ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen, | |
1107 | const BIGNUM *kinv, const BIGNUM *rp, | |
1108 | EC_KEY *eckey); | |
1109 | ||
1110 | /** Verifies that the supplied signature is a valid ECDSA | |
1111 | * signature of the supplied hash value using the supplied public key. | |
1112 | * \param dgst pointer to the hash value | |
1113 | * \param dgst_len length of the hash value | |
1114 | * \param sig ECDSA_SIG structure | |
1115 | * \param eckey EC_KEY object containing a public EC key | |
1116 | * \return 1 if the signature is valid, 0 if the signature is invalid | |
1117 | * and -1 on error | |
1118 | */ | |
1119 | int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, | |
1120 | const ECDSA_SIG *sig, EC_KEY *eckey); | |
1121 | ||
bd3602eb DSH |
1122 | /** Precompute parts of the signing operation |
1123 | * \param eckey EC_KEY object containing a private EC key | |
1124 | * \param ctx BN_CTX object (optional) | |
1125 | * \param kinv BIGNUM pointer for the inverse of k | |
1126 | * \param rp BIGNUM pointer for x coordinate of k * generator | |
1127 | * \return 1 on success and 0 otherwise | |
1128 | */ | |
1129 | int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **rp); | |
1130 | ||
1131 | /** Computes ECDSA signature of a given hash value using the supplied | |
1132 | * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). | |
1133 | * \param type this parameter is ignored | |
1134 | * \param dgst pointer to the hash value to sign | |
1135 | * \param dgstlen length of the hash value | |
1136 | * \param sig memory for the DER encoded created signature | |
1137 | * \param siglen pointer to the length of the returned signature | |
1138 | * \param eckey EC_KEY object containing a private EC key | |
1139 | * \return 1 on success and 0 otherwise | |
1140 | */ | |
1141 | int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen, | |
1142 | unsigned char *sig, unsigned int *siglen, EC_KEY *eckey); | |
1143 | ||
1144 | /** Computes ECDSA signature of a given hash value using the supplied | |
1145 | * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). | |
1146 | * \param type this parameter is ignored | |
1147 | * \param dgst pointer to the hash value to sign | |
1148 | * \param dgstlen length of the hash value | |
1149 | * \param sig buffer to hold the DER encoded signature | |
1150 | * \param siglen pointer to the length of the returned signature | |
1151 | * \param kinv BIGNUM with a pre-computed inverse k (optional) | |
8483a003 | 1152 | * \param rp BIGNUM with a pre-computed rp value (optional), |
bd3602eb DSH |
1153 | * see ECDSA_sign_setup |
1154 | * \param eckey EC_KEY object containing a private EC key | |
1155 | * \return 1 on success and 0 otherwise | |
1156 | */ | |
1157 | int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen, | |
1158 | unsigned char *sig, unsigned int *siglen, | |
1159 | const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey); | |
1160 | ||
1161 | /** Verifies that the given signature is valid ECDSA signature | |
1162 | * of the supplied hash value using the specified public key. | |
1163 | * \param type this parameter is ignored | |
1164 | * \param dgst pointer to the hash value | |
1165 | * \param dgstlen length of the hash value | |
1166 | * \param sig pointer to the DER encoded signature | |
1167 | * \param siglen length of the DER encoded signature | |
1168 | * \param eckey EC_KEY object containing a public EC key | |
1169 | * \return 1 if the signature is valid, 0 if the signature is invalid | |
1170 | * and -1 on error | |
1171 | */ | |
1172 | int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen, | |
1173 | const unsigned char *sig, int siglen, EC_KEY *eckey); | |
7236e3c8 | 1174 | |
cf517a6d DSH |
1175 | /** Returns the maximum length of the DER encoded signature |
1176 | * \param eckey EC_KEY object | |
1177 | * \return numbers of bytes required for the DER encoded signature | |
1178 | */ | |
1179 | int ECDSA_size(const EC_KEY *eckey); | |
1180 | ||
7bb75a5d DSH |
1181 | /********************************************************************/ |
1182 | /* EC_KEY_METHOD constructors, destructors, writers and accessors */ | |
1183 | /********************************************************************/ | |
1184 | ||
f8d7d2d6 DSH |
1185 | EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth); |
1186 | void EC_KEY_METHOD_free(EC_KEY_METHOD *meth); | |
1187 | void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth, | |
1188 | int (*init)(EC_KEY *key), | |
1189 | void (*finish)(EC_KEY *key), | |
1190 | int (*copy)(EC_KEY *dest, const EC_KEY *src), | |
1191 | int (*set_group)(EC_KEY *key, const EC_GROUP *grp), | |
1192 | int (*set_private)(EC_KEY *key, | |
1193 | const BIGNUM *priv_key), | |
1194 | int (*set_public)(EC_KEY *key, | |
1195 | const EC_POINT *pub_key)); | |
1196 | ||
1197 | void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth, | |
1198 | int (*keygen)(EC_KEY *key)); | |
1199 | ||
1200 | void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth, | |
e2285d87 DSH |
1201 | int (*ckey)(unsigned char **psec, |
1202 | size_t *pseclen, | |
f8d7d2d6 | 1203 | const EC_POINT *pub_key, |
e2285d87 | 1204 | const EC_KEY *ecdh)); |
f8d7d2d6 DSH |
1205 | |
1206 | void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth, | |
1207 | int (*sign)(int type, const unsigned char *dgst, | |
1208 | int dlen, unsigned char *sig, | |
1209 | unsigned int *siglen, | |
1210 | const BIGNUM *kinv, const BIGNUM *r, | |
1211 | EC_KEY *eckey), | |
1212 | int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, | |
1213 | BIGNUM **kinvp, BIGNUM **rp), | |
1214 | ECDSA_SIG *(*sign_sig)(const unsigned char *dgst, | |
1215 | int dgst_len, | |
1216 | const BIGNUM *in_kinv, | |
1217 | const BIGNUM *in_r, | |
1218 | EC_KEY *eckey)); | |
1219 | ||
1220 | void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth, | |
1221 | int (*verify)(int type, const unsigned | |
1222 | char *dgst, int dgst_len, | |
1223 | const unsigned char *sigbuf, | |
1224 | int sig_len, EC_KEY *eckey), | |
1225 | int (*verify_sig)(const unsigned char *dgst, | |
1226 | int dgst_len, | |
1227 | const ECDSA_SIG *sig, | |
1228 | EC_KEY *eckey)); | |
1229 | ||
4e9b720e | 1230 | void EC_KEY_METHOD_get_init(const EC_KEY_METHOD *meth, |
f8d7d2d6 DSH |
1231 | int (**pinit)(EC_KEY *key), |
1232 | void (**pfinish)(EC_KEY *key), | |
1233 | int (**pcopy)(EC_KEY *dest, const EC_KEY *src), | |
1234 | int (**pset_group)(EC_KEY *key, | |
1235 | const EC_GROUP *grp), | |
1236 | int (**pset_private)(EC_KEY *key, | |
1237 | const BIGNUM *priv_key), | |
1238 | int (**pset_public)(EC_KEY *key, | |
1239 | const EC_POINT *pub_key)); | |
1240 | ||
4e9b720e | 1241 | void EC_KEY_METHOD_get_keygen(const EC_KEY_METHOD *meth, |
f8d7d2d6 DSH |
1242 | int (**pkeygen)(EC_KEY *key)); |
1243 | ||
4e9b720e | 1244 | void EC_KEY_METHOD_get_compute_key(const EC_KEY_METHOD *meth, |
e2285d87 DSH |
1245 | int (**pck)(unsigned char **psec, |
1246 | size_t *pseclen, | |
f8d7d2d6 | 1247 | const EC_POINT *pub_key, |
e2285d87 | 1248 | const EC_KEY *ecdh)); |
f8d7d2d6 | 1249 | |
4e9b720e | 1250 | void EC_KEY_METHOD_get_sign(const EC_KEY_METHOD *meth, |
f8d7d2d6 DSH |
1251 | int (**psign)(int type, const unsigned char *dgst, |
1252 | int dlen, unsigned char *sig, | |
1253 | unsigned int *siglen, | |
1254 | const BIGNUM *kinv, const BIGNUM *r, | |
1255 | EC_KEY *eckey), | |
1256 | int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, | |
1257 | BIGNUM **kinvp, BIGNUM **rp), | |
1258 | ECDSA_SIG *(**psign_sig)(const unsigned char *dgst, | |
1259 | int dgst_len, | |
1260 | const BIGNUM *in_kinv, | |
1261 | const BIGNUM *in_r, | |
1262 | EC_KEY *eckey)); | |
1263 | ||
4e9b720e | 1264 | void EC_KEY_METHOD_get_verify(const EC_KEY_METHOD *meth, |
f8d7d2d6 DSH |
1265 | int (**pverify)(int type, const unsigned |
1266 | char *dgst, int dgst_len, | |
1267 | const unsigned char *sigbuf, | |
1268 | int sig_len, EC_KEY *eckey), | |
1269 | int (**pverify_sig)(const unsigned char *dgst, | |
1270 | int dgst_len, | |
1271 | const ECDSA_SIG *sig, | |
1272 | EC_KEY *eckey)); | |
1273 | ||
0f113f3e | 1274 | # define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x) |
458c2917 | 1275 | |
0f113f3e MC |
1276 | # ifndef __cplusplus |
1277 | # if defined(__SUNPRO_C) | |
1278 | # if __SUNPRO_C >= 0x520 | |
1279 | # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) | |
1280 | # endif | |
ad0db060 DSH |
1281 | # endif |
1282 | # endif | |
ad0db060 | 1283 | |
0f113f3e MC |
1284 | # define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \ |
1285 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1286 | EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \ | |
1287 | EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL) | |
1288 | ||
1289 | # define EVP_PKEY_CTX_set_ec_param_enc(ctx, flag) \ | |
1290 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1291 | EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \ | |
1292 | EVP_PKEY_CTRL_EC_PARAM_ENC, flag, NULL) | |
1293 | ||
1294 | # define EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, flag) \ | |
1295 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1296 | EVP_PKEY_OP_DERIVE, \ | |
1297 | EVP_PKEY_CTRL_EC_ECDH_COFACTOR, flag, NULL) | |
1298 | ||
1299 | # define EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx) \ | |
1300 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1301 | EVP_PKEY_OP_DERIVE, \ | |
1302 | EVP_PKEY_CTRL_EC_ECDH_COFACTOR, -2, NULL) | |
1303 | ||
1304 | # define EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, kdf) \ | |
1305 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1306 | EVP_PKEY_OP_DERIVE, \ | |
1307 | EVP_PKEY_CTRL_EC_KDF_TYPE, kdf, NULL) | |
1308 | ||
1309 | # define EVP_PKEY_CTX_get_ecdh_kdf_type(ctx) \ | |
1310 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1311 | EVP_PKEY_OP_DERIVE, \ | |
1312 | EVP_PKEY_CTRL_EC_KDF_TYPE, -2, NULL) | |
1313 | ||
1314 | # define EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md) \ | |
1315 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1316 | EVP_PKEY_OP_DERIVE, \ | |
37659ea4 | 1317 | EVP_PKEY_CTRL_EC_KDF_MD, 0, (void *)(md)) |
0f113f3e MC |
1318 | |
1319 | # define EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, pmd) \ | |
1320 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1321 | EVP_PKEY_OP_DERIVE, \ | |
37659ea4 | 1322 | EVP_PKEY_CTRL_GET_EC_KDF_MD, 0, (void *)(pmd)) |
0f113f3e MC |
1323 | |
1324 | # define EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, len) \ | |
1325 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1326 | EVP_PKEY_OP_DERIVE, \ | |
1327 | EVP_PKEY_CTRL_EC_KDF_OUTLEN, len, NULL) | |
1328 | ||
1329 | # define EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, plen) \ | |
1330 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1331 | EVP_PKEY_OP_DERIVE, \ | |
37659ea4 BE |
1332 | EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN, 0, \ |
1333 | (void *)(plen)) | |
0f113f3e MC |
1334 | |
1335 | # define EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p, plen) \ | |
1336 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1337 | EVP_PKEY_OP_DERIVE, \ | |
37659ea4 | 1338 | EVP_PKEY_CTRL_EC_KDF_UKM, plen, (void *)(p)) |
0f113f3e MC |
1339 | |
1340 | # define EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p) \ | |
1341 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ | |
1342 | EVP_PKEY_OP_DERIVE, \ | |
37659ea4 | 1343 | EVP_PKEY_CTRL_GET_EC_KDF_UKM, 0, (void *)(p)) |
0f113f3e MC |
1344 | |
1345 | # define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1) | |
1346 | # define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2) | |
1347 | # define EVP_PKEY_CTRL_EC_ECDH_COFACTOR (EVP_PKEY_ALG_CTRL + 3) | |
1348 | # define EVP_PKEY_CTRL_EC_KDF_TYPE (EVP_PKEY_ALG_CTRL + 4) | |
1349 | # define EVP_PKEY_CTRL_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 5) | |
1350 | # define EVP_PKEY_CTRL_GET_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 6) | |
1351 | # define EVP_PKEY_CTRL_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 7) | |
1352 | # define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8) | |
1353 | # define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9) | |
1354 | # define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10) | |
25af7a5d | 1355 | /* KDF types */ |
0f113f3e MC |
1356 | # define EVP_PKEY_ECDH_KDF_NONE 1 |
1357 | # define EVP_PKEY_ECDH_KDF_X9_62 2 | |
9ca7047d | 1358 | |
6cc5e19d | 1359 | |
0cd0a820 | 1360 | # ifdef __cplusplus |
65e81670 | 1361 | } |
0cd0a820 | 1362 | # endif |
3c27208f | 1363 | # endif |
5acaa495 | 1364 | #endif |