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Handle KDF internally.
[thirdparty/openssl.git] / include / openssl / ec.h
1
2 /* crypto/ec/ec.h */
3 /*
4 * Originally written by Bodo Moeller for the OpenSSL project.
5 */
6 /**
7 * \file crypto/ec/ec.h Include file for the OpenSSL EC functions
8 * \author Originally written by Bodo Moeller for the OpenSSL project
9 */
10 /* ====================================================================
11 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. All advertising materials mentioning features or use of this
26 * software must display the following acknowledgment:
27 * "This product includes software developed by the OpenSSL Project
28 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
29 *
30 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
31 * endorse or promote products derived from this software without
32 * prior written permission. For written permission, please contact
33 * openssl-core@openssl.org.
34 *
35 * 5. Products derived from this software may not be called "OpenSSL"
36 * nor may "OpenSSL" appear in their names without prior written
37 * permission of the OpenSSL Project.
38 *
39 * 6. Redistributions of any form whatsoever must retain the following
40 * acknowledgment:
41 * "This product includes software developed by the OpenSSL Project
42 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
45 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
47 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
48 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
49 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
53 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
54 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
55 * OF THE POSSIBILITY OF SUCH DAMAGE.
56 * ====================================================================
57 *
58 * This product includes cryptographic software written by Eric Young
59 * (eay@cryptsoft.com). This product includes software written by Tim
60 * Hudson (tjh@cryptsoft.com).
61 *
62 */
63 /* ====================================================================
64 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
65 *
66 * Portions of the attached software ("Contribution") are developed by
67 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
68 *
69 * The Contribution is licensed pursuant to the OpenSSL open source
70 * license provided above.
71 *
72 * The elliptic curve binary polynomial software is originally written by
73 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
74 *
75 */
76
77 #ifndef HEADER_EC_H
78 # define HEADER_EC_H
79
80 # include <openssl/opensslconf.h>
81
82 # ifdef OPENSSL_NO_EC
83 # error EC is disabled.
84 # endif
85
86 # include <openssl/asn1.h>
87 # include <openssl/symhacks.h>
88 # if OPENSSL_API_COMPAT < 0x10100000L
89 # include <openssl/bn.h>
90 # endif
91
92 # ifdef __cplusplus
93 extern "C" {
94 # elif defined(__SUNPRO_C)
95 # if __SUNPRO_C >= 0x520
96 # pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
97 # endif
98 # endif
99
100 # ifndef OPENSSL_ECC_MAX_FIELD_BITS
101 # define OPENSSL_ECC_MAX_FIELD_BITS 661
102 # endif
103
104 /** Enum for the point conversion form as defined in X9.62 (ECDSA)
105 * for the encoding of a elliptic curve point (x,y) */
106 typedef enum {
107 /** the point is encoded as z||x, where the octet z specifies
108 * which solution of the quadratic equation y is */
109 POINT_CONVERSION_COMPRESSED = 2,
110 /** the point is encoded as z||x||y, where z is the octet 0x04 */
111 POINT_CONVERSION_UNCOMPRESSED = 4,
112 /** the point is encoded as z||x||y, where the octet z specifies
113 * which solution of the quadratic equation y is */
114 POINT_CONVERSION_HYBRID = 6
115 } point_conversion_form_t;
116
117 typedef struct ec_method_st EC_METHOD;
118
119 typedef struct ec_group_st
120 /*-
121 EC_METHOD *meth;
122 -- field definition
123 -- curve coefficients
124 -- optional generator with associated information (order, cofactor)
125 -- optional extra data (precomputed table for fast computation of multiples of generator)
126 -- ASN1 stuff
127 */
128 EC_GROUP;
129
130 typedef struct ec_point_st EC_POINT;
131
132 /********************************************************************/
133 /* EC_METHODs for curves over GF(p) */
134 /********************************************************************/
135
136 /** Returns the basic GFp ec methods which provides the basis for the
137 * optimized methods.
138 * \return EC_METHOD object
139 */
140 const EC_METHOD *EC_GFp_simple_method(void);
141
142 /** Returns GFp methods using montgomery multiplication.
143 * \return EC_METHOD object
144 */
145 const EC_METHOD *EC_GFp_mont_method(void);
146
147 /** Returns GFp methods using optimized methods for NIST recommended curves
148 * \return EC_METHOD object
149 */
150 const EC_METHOD *EC_GFp_nist_method(void);
151
152 # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
153 # ifndef OPENSSL_SYS_WIN32
154 /** Returns 64-bit optimized methods for nistp224
155 * \return EC_METHOD object
156 */
157 const EC_METHOD *EC_GFp_nistp224_method(void);
158
159 /** Returns 64-bit optimized methods for nistp256
160 * \return EC_METHOD object
161 */
162 const EC_METHOD *EC_GFp_nistp256_method(void);
163
164 /** Returns 64-bit optimized methods for nistp521
165 * \return EC_METHOD object
166 */
167 const EC_METHOD *EC_GFp_nistp521_method(void);
168 # endif
169 # endif
170
171 # ifndef OPENSSL_NO_EC2M
172 /********************************************************************/
173 /* EC_METHOD for curves over GF(2^m) */
174 /********************************************************************/
175
176 /** Returns the basic GF2m ec method
177 * \return EC_METHOD object
178 */
179 const EC_METHOD *EC_GF2m_simple_method(void);
180
181 # endif
182
183 /********************************************************************/
184 /* EC_GROUP functions */
185 /********************************************************************/
186
187 /** Creates a new EC_GROUP object
188 * \param meth EC_METHOD to use
189 * \return newly created EC_GROUP object or NULL in case of an error.
190 */
191 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth);
192
193 /** Frees a EC_GROUP object
194 * \param group EC_GROUP object to be freed.
195 */
196 void EC_GROUP_free(EC_GROUP *group);
197
198 /** Clears and frees a EC_GROUP object
199 * \param group EC_GROUP object to be cleared and freed.
200 */
201 void EC_GROUP_clear_free(EC_GROUP *group);
202
203 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD.
204 * \param dst destination EC_GROUP object
205 * \param src source EC_GROUP object
206 * \return 1 on success and 0 if an error occurred.
207 */
208 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src);
209
210 /** Creates a new EC_GROUP object and copies the copies the content
211 * form src to the newly created EC_KEY object
212 * \param src source EC_GROUP object
213 * \return newly created EC_GROUP object or NULL in case of an error.
214 */
215 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);
216
217 /** Returns the EC_METHOD of the EC_GROUP object.
218 * \param group EC_GROUP object
219 * \return EC_METHOD used in this EC_GROUP object.
220 */
221 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);
222
223 /** Returns the field type of the EC_METHOD.
224 * \param meth EC_METHOD object
225 * \return NID of the underlying field type OID.
226 */
227 int EC_METHOD_get_field_type(const EC_METHOD *meth);
228
229 /** Sets the generator and it's order/cofactor of a EC_GROUP object.
230 * \param group EC_GROUP object
231 * \param generator EC_POINT object with the generator.
232 * \param order the order of the group generated by the generator.
233 * \param cofactor the index of the sub-group generated by the generator
234 * in the group of all points on the elliptic curve.
235 * \return 1 on success and 0 if an error occurred
236 */
237 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator,
238 const BIGNUM *order, const BIGNUM *cofactor);
239
240 /** Returns the generator of a EC_GROUP object.
241 * \param group EC_GROUP object
242 * \return the currently used generator (possibly NULL).
243 */
244 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
245
246 /** Returns the montgomery data for order(Generator)
247 * \param group EC_GROUP object
248 * \return the currently used generator (possibly NULL).
249 */
250 BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group);
251
252 /** Gets the order of a EC_GROUP
253 * \param group EC_GROUP object
254 * \param order BIGNUM to which the order is copied
255 * \param ctx unused
256 * \return 1 on success and 0 if an error occurred
257 */
258 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
259
260 /** Gets the order of an EC_GROUP
261 * \param group EC_GROUP object
262 * \return the group order
263 */
264
265 const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group);
266
267 /** Gets the number of bits of ther order of an EC_GROUP
268 * \param group EC_GROUP object
269 * \return number of bits of group order.
270 */
271
272 int EC_GROUP_order_bits(const EC_GROUP *group);
273
274 /** Gets the cofactor of a EC_GROUP
275 * \param group EC_GROUP object
276 * \param cofactor BIGNUM to which the cofactor is copied
277 * \param ctx unused
278 * \return 1 on success and 0 if an error occurred
279 */
280 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,
281 BN_CTX *ctx);
282
283 /** Gets the cofactor of an EC_GROUP
284 * \param group EC_GROUP object
285 * \return the group cofactor
286 */
287
288 const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group);
289
290 /** Sets the name of a EC_GROUP object
291 * \param group EC_GROUP object
292 * \param nid NID of the curve name OID
293 */
294 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
295
296 /** Returns the curve name of a EC_GROUP object
297 * \param group EC_GROUP object
298 * \return NID of the curve name OID or 0 if not set.
299 */
300 int EC_GROUP_get_curve_name(const EC_GROUP *group);
301
302 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
303 int EC_GROUP_get_asn1_flag(const EC_GROUP *group);
304
305 void EC_GROUP_set_point_conversion_form(EC_GROUP *group,
306 point_conversion_form_t form);
307 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
308
309 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x);
310 size_t EC_GROUP_get_seed_len(const EC_GROUP *);
311 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
312
313 /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b
314 * \param group EC_GROUP object
315 * \param p BIGNUM with the prime number
316 * \param a BIGNUM with parameter a of the equation
317 * \param b BIGNUM with parameter b of the equation
318 * \param ctx BN_CTX object (optional)
319 * \return 1 on success and 0 if an error occurred
320 */
321 int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
322 const BIGNUM *b, BN_CTX *ctx);
323
324 /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b
325 * \param group EC_GROUP object
326 * \param p BIGNUM for the prime number
327 * \param a BIGNUM for parameter a of the equation
328 * \param b BIGNUM for parameter b of the equation
329 * \param ctx BN_CTX object (optional)
330 * \return 1 on success and 0 if an error occurred
331 */
332 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a,
333 BIGNUM *b, BN_CTX *ctx);
334
335 # ifndef OPENSSL_NO_EC2M
336 /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
337 * \param group EC_GROUP object
338 * \param p BIGNUM with the polynomial defining the underlying field
339 * \param a BIGNUM with parameter a of the equation
340 * \param b BIGNUM with parameter b of the equation
341 * \param ctx BN_CTX object (optional)
342 * \return 1 on success and 0 if an error occurred
343 */
344 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
345 const BIGNUM *b, BN_CTX *ctx);
346
347 /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
348 * \param group EC_GROUP object
349 * \param p BIGNUM for the polynomial defining the underlying field
350 * \param a BIGNUM for parameter a of the equation
351 * \param b BIGNUM for parameter b of the equation
352 * \param ctx BN_CTX object (optional)
353 * \return 1 on success and 0 if an error occurred
354 */
355 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a,
356 BIGNUM *b, BN_CTX *ctx);
357 # endif
358 /** Returns the number of bits needed to represent a field element
359 * \param group EC_GROUP object
360 * \return number of bits needed to represent a field element
361 */
362 int EC_GROUP_get_degree(const EC_GROUP *group);
363
364 /** Checks whether the parameter in the EC_GROUP define a valid ec group
365 * \param group EC_GROUP object
366 * \param ctx BN_CTX object (optional)
367 * \return 1 if group is a valid ec group and 0 otherwise
368 */
369 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
370
371 /** Checks whether the discriminant of the elliptic curve is zero or not
372 * \param group EC_GROUP object
373 * \param ctx BN_CTX object (optional)
374 * \return 1 if the discriminant is not zero and 0 otherwise
375 */
376 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);
377
378 /** Compares two EC_GROUP objects
379 * \param a first EC_GROUP object
380 * \param b second EC_GROUP object
381 * \param ctx BN_CTX object (optional)
382 * \return 0 if both groups are equal and 1 otherwise
383 */
384 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);
385
386 /*
387 * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after
388 * choosing an appropriate EC_METHOD
389 */
390
391 /** Creates a new EC_GROUP object with the specified parameters defined
392 * over GFp (defined by the equation y^2 = x^3 + a*x + b)
393 * \param p BIGNUM with the prime number
394 * \param a BIGNUM with the parameter a of the equation
395 * \param b BIGNUM with the parameter b of the equation
396 * \param ctx BN_CTX object (optional)
397 * \return newly created EC_GROUP object with the specified parameters
398 */
399 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a,
400 const BIGNUM *b, BN_CTX *ctx);
401 # ifndef OPENSSL_NO_EC2M
402 /** Creates a new EC_GROUP object with the specified parameters defined
403 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
404 * \param p BIGNUM with the polynomial defining the underlying field
405 * \param a BIGNUM with the parameter a of the equation
406 * \param b BIGNUM with the parameter b of the equation
407 * \param ctx BN_CTX object (optional)
408 * \return newly created EC_GROUP object with the specified parameters
409 */
410 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a,
411 const BIGNUM *b, BN_CTX *ctx);
412 # endif
413 /** Creates a EC_GROUP object with a curve specified by a NID
414 * \param nid NID of the OID of the curve name
415 * \return newly created EC_GROUP object with specified curve or NULL
416 * if an error occurred
417 */
418 EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
419
420 /********************************************************************/
421 /* handling of internal curves */
422 /********************************************************************/
423
424 typedef struct {
425 int nid;
426 const char *comment;
427 } EC_builtin_curve;
428
429 /*
430 * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all
431 * available curves or zero if a error occurred. In case r ist not zero
432 * nitems EC_builtin_curve structures are filled with the data of the first
433 * nitems internal groups
434 */
435 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
436
437 const char *EC_curve_nid2nist(int nid);
438 int EC_curve_nist2nid(const char *name);
439
440 /********************************************************************/
441 /* EC_POINT functions */
442 /********************************************************************/
443
444 /** Creates a new EC_POINT object for the specified EC_GROUP
445 * \param group EC_GROUP the underlying EC_GROUP object
446 * \return newly created EC_POINT object or NULL if an error occurred
447 */
448 EC_POINT *EC_POINT_new(const EC_GROUP *group);
449
450 /** Frees a EC_POINT object
451 * \param point EC_POINT object to be freed
452 */
453 void EC_POINT_free(EC_POINT *point);
454
455 /** Clears and frees a EC_POINT object
456 * \param point EC_POINT object to be cleared and freed
457 */
458 void EC_POINT_clear_free(EC_POINT *point);
459
460 /** Copies EC_POINT object
461 * \param dst destination EC_POINT object
462 * \param src source EC_POINT object
463 * \return 1 on success and 0 if an error occurred
464 */
465 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);
466
467 /** Creates a new EC_POINT object and copies the content of the supplied
468 * EC_POINT
469 * \param src source EC_POINT object
470 * \param group underlying the EC_GROUP object
471 * \return newly created EC_POINT object or NULL if an error occurred
472 */
473 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);
474
475 /** Returns the EC_METHOD used in EC_POINT object
476 * \param point EC_POINT object
477 * \return the EC_METHOD used
478 */
479 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);
480
481 /** Sets a point to infinity (neutral element)
482 * \param group underlying EC_GROUP object
483 * \param point EC_POINT to set to infinity
484 * \return 1 on success and 0 if an error occurred
485 */
486 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);
487
488 /** Sets the jacobian projective coordinates of a EC_POINT over GFp
489 * \param group underlying EC_GROUP object
490 * \param p EC_POINT object
491 * \param x BIGNUM with the x-coordinate
492 * \param y BIGNUM with the y-coordinate
493 * \param z BIGNUM with the z-coordinate
494 * \param ctx BN_CTX object (optional)
495 * \return 1 on success and 0 if an error occurred
496 */
497 int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group,
498 EC_POINT *p, const BIGNUM *x,
499 const BIGNUM *y, const BIGNUM *z,
500 BN_CTX *ctx);
501
502 /** Gets the jacobian projective coordinates of a EC_POINT over GFp
503 * \param group underlying EC_GROUP object
504 * \param p EC_POINT object
505 * \param x BIGNUM for the x-coordinate
506 * \param y BIGNUM for the y-coordinate
507 * \param z BIGNUM for the z-coordinate
508 * \param ctx BN_CTX object (optional)
509 * \return 1 on success and 0 if an error occurred
510 */
511 int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group,
512 const EC_POINT *p, BIGNUM *x,
513 BIGNUM *y, BIGNUM *z,
514 BN_CTX *ctx);
515
516 /** Sets the affine coordinates of a EC_POINT over GFp
517 * \param group underlying EC_GROUP object
518 * \param p EC_POINT object
519 * \param x BIGNUM with the x-coordinate
520 * \param y BIGNUM with the y-coordinate
521 * \param ctx BN_CTX object (optional)
522 * \return 1 on success and 0 if an error occurred
523 */
524 int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
525 const BIGNUM *x, const BIGNUM *y,
526 BN_CTX *ctx);
527
528 /** Gets the affine coordinates of a EC_POINT over GFp
529 * \param group underlying EC_GROUP object
530 * \param p EC_POINT object
531 * \param x BIGNUM for the x-coordinate
532 * \param y BIGNUM for the y-coordinate
533 * \param ctx BN_CTX object (optional)
534 * \return 1 on success and 0 if an error occurred
535 */
536 int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group,
537 const EC_POINT *p, BIGNUM *x,
538 BIGNUM *y, BN_CTX *ctx);
539
540 /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp
541 * \param group underlying EC_GROUP object
542 * \param p EC_POINT object
543 * \param x BIGNUM with x-coordinate
544 * \param y_bit integer with the y-Bit (either 0 or 1)
545 * \param ctx BN_CTX object (optional)
546 * \return 1 on success and 0 if an error occurred
547 */
548 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group,
549 EC_POINT *p, const BIGNUM *x,
550 int y_bit, BN_CTX *ctx);
551 # ifndef OPENSSL_NO_EC2M
552 /** Sets the affine coordinates of a EC_POINT over GF2m
553 * \param group underlying EC_GROUP object
554 * \param p EC_POINT object
555 * \param x BIGNUM with the x-coordinate
556 * \param y BIGNUM with the y-coordinate
557 * \param ctx BN_CTX object (optional)
558 * \return 1 on success and 0 if an error occurred
559 */
560 int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
561 const BIGNUM *x, const BIGNUM *y,
562 BN_CTX *ctx);
563
564 /** Gets the affine coordinates of a EC_POINT over GF2m
565 * \param group underlying EC_GROUP object
566 * \param p EC_POINT object
567 * \param x BIGNUM for the x-coordinate
568 * \param y BIGNUM for the y-coordinate
569 * \param ctx BN_CTX object (optional)
570 * \return 1 on success and 0 if an error occurred
571 */
572 int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group,
573 const EC_POINT *p, BIGNUM *x,
574 BIGNUM *y, BN_CTX *ctx);
575
576 /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m
577 * \param group underlying EC_GROUP object
578 * \param p EC_POINT object
579 * \param x BIGNUM with x-coordinate
580 * \param y_bit integer with the y-Bit (either 0 or 1)
581 * \param ctx BN_CTX object (optional)
582 * \return 1 on success and 0 if an error occurred
583 */
584 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,
585 EC_POINT *p, const BIGNUM *x,
586 int y_bit, BN_CTX *ctx);
587 # endif
588 /** Encodes a EC_POINT object to a octet string
589 * \param group underlying EC_GROUP object
590 * \param p EC_POINT object
591 * \param form point conversion form
592 * \param buf memory buffer for the result. If NULL the function returns
593 * required buffer size.
594 * \param len length of the memory buffer
595 * \param ctx BN_CTX object (optional)
596 * \return the length of the encoded octet string or 0 if an error occurred
597 */
598 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
599 point_conversion_form_t form,
600 unsigned char *buf, size_t len, BN_CTX *ctx);
601
602 /** Decodes a EC_POINT from a octet string
603 * \param group underlying EC_GROUP object
604 * \param p EC_POINT object
605 * \param buf memory buffer with the encoded ec point
606 * \param len length of the encoded ec point
607 * \param ctx BN_CTX object (optional)
608 * \return 1 on success and 0 if an error occurred
609 */
610 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
611 const unsigned char *buf, size_t len, BN_CTX *ctx);
612
613 /** Encodes an EC_POINT object to an allocated octet string
614 * \param group underlying EC_GROUP object
615 * \param point EC_POINT object
616 * \param form point conversion form
617 * \param pbuf returns pointer to allocated buffer
618 * \param len length of the memory buffer
619 * \param ctx BN_CTX object (optional)
620 * \return the length of the encoded octet string or 0 if an error occurred
621 */
622
623 size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point,
624 point_conversion_form_t form,
625 unsigned char **pbuf, BN_CTX *ctx);
626
627 /* other interfaces to point2oct/oct2point: */
628 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
629 point_conversion_form_t form, BIGNUM *, BN_CTX *);
630 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
631 EC_POINT *, BN_CTX *);
632 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
633 point_conversion_form_t form, BN_CTX *);
634 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
635 EC_POINT *, BN_CTX *);
636
637 /********************************************************************/
638 /* functions for doing EC_POINT arithmetic */
639 /********************************************************************/
640
641 /** Computes the sum of two EC_POINT
642 * \param group underlying EC_GROUP object
643 * \param r EC_POINT object for the result (r = a + b)
644 * \param a EC_POINT object with the first summand
645 * \param b EC_POINT object with the second summand
646 * \param ctx BN_CTX object (optional)
647 * \return 1 on success and 0 if an error occurred
648 */
649 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
650 const EC_POINT *b, BN_CTX *ctx);
651
652 /** Computes the double of a EC_POINT
653 * \param group underlying EC_GROUP object
654 * \param r EC_POINT object for the result (r = 2 * a)
655 * \param a EC_POINT object
656 * \param ctx BN_CTX object (optional)
657 * \return 1 on success and 0 if an error occurred
658 */
659 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
660 BN_CTX *ctx);
661
662 /** Computes the inverse of a EC_POINT
663 * \param group underlying EC_GROUP object
664 * \param a EC_POINT object to be inverted (it's used for the result as well)
665 * \param ctx BN_CTX object (optional)
666 * \return 1 on success and 0 if an error occurred
667 */
668 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);
669
670 /** Checks whether the point is the neutral element of the group
671 * \param group the underlying EC_GROUP object
672 * \param p EC_POINT object
673 * \return 1 if the point is the neutral element and 0 otherwise
674 */
675 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);
676
677 /** Checks whether the point is on the curve
678 * \param group underlying EC_GROUP object
679 * \param point EC_POINT object to check
680 * \param ctx BN_CTX object (optional)
681 * \return 1 if point if on the curve and 0 otherwise
682 */
683 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point,
684 BN_CTX *ctx);
685
686 /** Compares two EC_POINTs
687 * \param group underlying EC_GROUP object
688 * \param a first EC_POINT object
689 * \param b second EC_POINT object
690 * \param ctx BN_CTX object (optional)
691 * \return 0 if both points are equal and a value != 0 otherwise
692 */
693 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b,
694 BN_CTX *ctx);
695
696 int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx);
697 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num,
698 EC_POINT *points[], BN_CTX *ctx);
699
700 /** Computes r = generator * n sum_{i=0}^{num-1} p[i] * m[i]
701 * \param group underlying EC_GROUP object
702 * \param r EC_POINT object for the result
703 * \param n BIGNUM with the multiplier for the group generator (optional)
704 * \param num number futher summands
705 * \param p array of size num of EC_POINT objects
706 * \param m array of size num of BIGNUM objects
707 * \param ctx BN_CTX object (optional)
708 * \return 1 on success and 0 if an error occurred
709 */
710 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
711 size_t num, const EC_POINT *p[], const BIGNUM *m[],
712 BN_CTX *ctx);
713
714 /** Computes r = generator * n + q * m
715 * \param group underlying EC_GROUP object
716 * \param r EC_POINT object for the result
717 * \param n BIGNUM with the multiplier for the group generator (optional)
718 * \param q EC_POINT object with the first factor of the second summand
719 * \param m BIGNUM with the second factor of the second summand
720 * \param ctx BN_CTX object (optional)
721 * \return 1 on success and 0 if an error occurred
722 */
723 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
724 const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);
725
726 /** Stores multiples of generator for faster point multiplication
727 * \param group EC_GROUP object
728 * \param ctx BN_CTX object (optional)
729 * \return 1 on success and 0 if an error occurred
730 */
731 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
732
733 /** Reports whether a precomputation has been done
734 * \param group EC_GROUP object
735 * \return 1 if a pre-computation has been done and 0 otherwise
736 */
737 int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
738
739 /********************************************************************/
740 /* ASN1 stuff */
741 /********************************************************************/
742
743 /*
744 * EC_GROUP_get_basis_type() returns the NID of the basis type used to
745 * represent the field elements
746 */
747 int EC_GROUP_get_basis_type(const EC_GROUP *);
748 # ifndef OPENSSL_NO_EC2M
749 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
750 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
751 unsigned int *k2, unsigned int *k3);
752 # endif
753
754 # define OPENSSL_EC_EXPLICIT_CURVE 0x000
755 # define OPENSSL_EC_NAMED_CURVE 0x001
756
757 typedef struct ecpk_parameters_st ECPKPARAMETERS;
758
759 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
760 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
761
762 # define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
763 # define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
764 # define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
765 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
766 # define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
767 (unsigned char *)(x))
768
769 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
770 # ifndef OPENSSL_NO_STDIO
771 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
772 # endif
773
774 /********************************************************************/
775 /* EC_KEY functions */
776 /********************************************************************/
777
778 /* some values for the encoding_flag */
779 # define EC_PKEY_NO_PARAMETERS 0x001
780 # define EC_PKEY_NO_PUBKEY 0x002
781
782 /* some values for the flags field */
783 # define EC_FLAG_NON_FIPS_ALLOW 0x1
784 # define EC_FLAG_FIPS_CHECKED 0x2
785 # define EC_FLAG_COFACTOR_ECDH 0x1000
786
787 /** Creates a new EC_KEY object.
788 * \return EC_KEY object or NULL if an error occurred.
789 */
790 EC_KEY *EC_KEY_new(void);
791
792 int EC_KEY_get_flags(const EC_KEY *key);
793
794 void EC_KEY_set_flags(EC_KEY *key, int flags);
795
796 void EC_KEY_clear_flags(EC_KEY *key, int flags);
797
798 /** Creates a new EC_KEY object using a named curve as underlying
799 * EC_GROUP object.
800 * \param nid NID of the named curve.
801 * \return EC_KEY object or NULL if an error occurred.
802 */
803 EC_KEY *EC_KEY_new_by_curve_name(int nid);
804
805 /** Frees a EC_KEY object.
806 * \param key EC_KEY object to be freed.
807 */
808 void EC_KEY_free(EC_KEY *key);
809
810 /** Copies a EC_KEY object.
811 * \param dst destination EC_KEY object
812 * \param src src EC_KEY object
813 * \return dst or NULL if an error occurred.
814 */
815 EC_KEY *EC_KEY_copy(EC_KEY *dst, EC_KEY *src);
816
817 /** Creates a new EC_KEY object and copies the content from src to it.
818 * \param src the source EC_KEY object
819 * \return newly created EC_KEY object or NULL if an error occurred.
820 */
821 EC_KEY *EC_KEY_dup(EC_KEY *src);
822
823 /** Increases the internal reference count of a EC_KEY object.
824 * \param key EC_KEY object
825 * \return 1 on success and 0 if an error occurred.
826 */
827 int EC_KEY_up_ref(EC_KEY *key);
828
829 /** Returns the EC_GROUP object of a EC_KEY object
830 * \param key EC_KEY object
831 * \return the EC_GROUP object (possibly NULL).
832 */
833 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);
834
835 /** Sets the EC_GROUP of a EC_KEY object.
836 * \param key EC_KEY object
837 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY
838 * object will use an own copy of the EC_GROUP).
839 * \return 1 on success and 0 if an error occurred.
840 */
841 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);
842
843 /** Returns the private key of a EC_KEY object.
844 * \param key EC_KEY object
845 * \return a BIGNUM with the private key (possibly NULL).
846 */
847 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);
848
849 /** Sets the private key of a EC_KEY object.
850 * \param key EC_KEY object
851 * \param prv BIGNUM with the private key (note: the EC_KEY object
852 * will use an own copy of the BIGNUM).
853 * \return 1 on success and 0 if an error occurred.
854 */
855 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);
856
857 /** Returns the public key of a EC_KEY object.
858 * \param key the EC_KEY object
859 * \return a EC_POINT object with the public key (possibly NULL)
860 */
861 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);
862
863 /** Sets the public key of a EC_KEY object.
864 * \param key EC_KEY object
865 * \param pub EC_POINT object with the public key (note: the EC_KEY object
866 * will use an own copy of the EC_POINT object).
867 * \return 1 on success and 0 if an error occurred.
868 */
869 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);
870
871 unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
872 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);
873 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key);
874 void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform);
875
876 #define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \
877 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef)
878 int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg);
879 void *EC_KEY_get_ex_data(const EC_KEY *key, int idx);
880
881 /* wrapper functions for the underlying EC_GROUP object */
882 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag);
883
884 /** Creates a table of pre-computed multiples of the generator to
885 * accelerate further EC_KEY operations.
886 * \param key EC_KEY object
887 * \param ctx BN_CTX object (optional)
888 * \return 1 on success and 0 if an error occurred.
889 */
890 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);
891
892 /** Creates a new ec private (and optional a new public) key.
893 * \param key EC_KEY object
894 * \return 1 on success and 0 if an error occurred.
895 */
896 int EC_KEY_generate_key(EC_KEY *key);
897
898 /** Verifies that a private and/or public key is valid.
899 * \param key the EC_KEY object
900 * \return 1 on success and 0 otherwise.
901 */
902 int EC_KEY_check_key(const EC_KEY *key);
903
904 /** Indicates if an EC_KEY can be used for signing.
905 * \param key the EC_KEY object
906 * \return 1 if can can sign and 0 otherwise.
907 */
908 int EC_KEY_can_sign(const EC_KEY *eckey);
909
910 /** Sets a public key from affine coordindates performing
911 * necessary NIST PKV tests.
912 * \param key the EC_KEY object
913 * \param x public key x coordinate
914 * \param y public key y coordinate
915 * \return 1 on success and 0 otherwise.
916 */
917 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x,
918 BIGNUM *y);
919
920 /** Encodes an EC_KEY public key to an allocated octet string
921 * \param key key to encode
922 * \param form point conversion form
923 * \param pbuf returns pointer to allocated buffer
924 * \param len length of the memory buffer
925 * \param ctx BN_CTX object (optional)
926 * \return the length of the encoded octet string or 0 if an error occurred
927 */
928
929 size_t EC_KEY_key2buf(const EC_KEY *key, point_conversion_form_t form,
930 unsigned char **pbuf, BN_CTX *ctx);
931
932 /** Decodes a EC_KEY public key from a octet string
933 * \param key key to decode
934 * \param buf memory buffer with the encoded ec point
935 * \param len length of the encoded ec point
936 * \param ctx BN_CTX object (optional)
937 * \return 1 on success and 0 if an error occurred
938 */
939
940 int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf, size_t len,
941 BN_CTX *ctx);
942
943 /** Decodes an EC_KEY private key from an octet string
944 * \param key key to decode
945 * \param buf memory buffer with the encoded private key
946 * \param len length of the encoded key
947 * \return 1 on success and 0 if an error occurred
948 */
949
950 int EC_KEY_oct2priv(EC_KEY *key, unsigned char *buf, size_t len);
951
952 /** Encodes a EC_KEY private key to an octet string
953 * \param key key to encode
954 * \param buf memory buffer for the result. If NULL the function returns
955 * required buffer size.
956 * \param len length of the memory buffer
957 * \return the length of the encoded octet string or 0 if an error occurred
958 */
959
960 size_t EC_KEY_priv2oct(const EC_KEY *key, unsigned char *buf, size_t len);
961
962 /** Encodes an EC_KEY private key to an allocated octet string
963 * \param key key to encode
964 * \param pbuf returns pointer to allocated buffer
965 * \return the length of the encoded octet string or 0 if an error occurred
966 */
967
968 size_t EC_KEY_priv2buf(const EC_KEY *eckey, unsigned char **pbuf);
969
970 /********************************************************************/
971 /* de- and encoding functions for SEC1 ECPrivateKey */
972 /********************************************************************/
973
974 /** Decodes a private key from a memory buffer.
975 * \param key a pointer to a EC_KEY object which should be used (or NULL)
976 * \param in pointer to memory with the DER encoded private key
977 * \param len length of the DER encoded private key
978 * \return the decoded private key or NULL if an error occurred.
979 */
980 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len);
981
982 /** Encodes a private key object and stores the result in a buffer.
983 * \param key the EC_KEY object to encode
984 * \param out the buffer for the result (if NULL the function returns number
985 * of bytes needed).
986 * \return 1 on success and 0 if an error occurred.
987 */
988 int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out);
989
990 /********************************************************************/
991 /* de- and encoding functions for EC parameters */
992 /********************************************************************/
993
994 /** Decodes ec parameter from a memory buffer.
995 * \param key a pointer to a EC_KEY object which should be used (or NULL)
996 * \param in pointer to memory with the DER encoded ec parameters
997 * \param len length of the DER encoded ec parameters
998 * \return a EC_KEY object with the decoded parameters or NULL if an error
999 * occurred.
1000 */
1001 EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len);
1002
1003 /** Encodes ec parameter and stores the result in a buffer.
1004 * \param key the EC_KEY object with ec parameters to encode
1005 * \param out the buffer for the result (if NULL the function returns number
1006 * of bytes needed).
1007 * \return 1 on success and 0 if an error occurred.
1008 */
1009 int i2d_ECParameters(EC_KEY *key, unsigned char **out);
1010
1011 /********************************************************************/
1012 /* de- and encoding functions for EC public key */
1013 /* (octet string, not DER -- hence 'o2i' and 'i2o') */
1014 /********************************************************************/
1015
1016 /** Decodes a ec public key from a octet string.
1017 * \param key a pointer to a EC_KEY object which should be used
1018 * \param in memory buffer with the encoded public key
1019 * \param len length of the encoded public key
1020 * \return EC_KEY object with decoded public key or NULL if an error
1021 * occurred.
1022 */
1023 EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len);
1024
1025 /** Encodes a ec public key in an octet string.
1026 * \param key the EC_KEY object with the public key
1027 * \param out the buffer for the result (if NULL the function returns number
1028 * of bytes needed).
1029 * \return 1 on success and 0 if an error occurred
1030 */
1031 int i2o_ECPublicKey(EC_KEY *key, unsigned char **out);
1032
1033 /** Prints out the ec parameters on human readable form.
1034 * \param bp BIO object to which the information is printed
1035 * \param key EC_KEY object
1036 * \return 1 on success and 0 if an error occurred
1037 */
1038 int ECParameters_print(BIO *bp, const EC_KEY *key);
1039
1040 /** Prints out the contents of a EC_KEY object
1041 * \param bp BIO object to which the information is printed
1042 * \param key EC_KEY object
1043 * \param off line offset
1044 * \return 1 on success and 0 if an error occurred
1045 */
1046 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off);
1047
1048 # ifndef OPENSSL_NO_STDIO
1049 /** Prints out the ec parameters on human readable form.
1050 * \param fp file descriptor to which the information is printed
1051 * \param key EC_KEY object
1052 * \return 1 on success and 0 if an error occurred
1053 */
1054 int ECParameters_print_fp(FILE *fp, const EC_KEY *key);
1055
1056 /** Prints out the contents of a EC_KEY object
1057 * \param fp file descriptor to which the information is printed
1058 * \param key EC_KEY object
1059 * \param off line offset
1060 * \return 1 on success and 0 if an error occurred
1061 */
1062 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
1063
1064 # endif
1065
1066 const EC_KEY_METHOD *EC_KEY_OpenSSL(void);
1067 const EC_KEY_METHOD *EC_KEY_get_default_method(void);
1068 void EC_KEY_set_default_method(const EC_KEY_METHOD *meth);
1069 const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key);
1070 int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth);
1071 EC_KEY *EC_KEY_new_method(ENGINE *engine);
1072
1073 int ECDH_KDF_X9_62(unsigned char *out, size_t outlen,
1074 const unsigned char *Z, size_t Zlen,
1075 const unsigned char *sinfo, size_t sinfolen,
1076 const EVP_MD *md);
1077
1078 int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
1079 const EC_KEY *ecdh,
1080 void *(*KDF) (const void *in, size_t inlen,
1081 void *out, size_t *outlen));
1082
1083 typedef struct ECDSA_SIG_st ECDSA_SIG;
1084
1085 /** Allocates and initialize a ECDSA_SIG structure
1086 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
1087 */
1088 ECDSA_SIG *ECDSA_SIG_new(void);
1089
1090 /** frees a ECDSA_SIG structure
1091 * \param sig pointer to the ECDSA_SIG structure
1092 */
1093 void ECDSA_SIG_free(ECDSA_SIG *sig);
1094
1095 /** DER encode content of ECDSA_SIG object (note: this function modifies *pp
1096 * (*pp += length of the DER encoded signature)).
1097 * \param sig pointer to the ECDSA_SIG object
1098 * \param pp pointer to a unsigned char pointer for the output or NULL
1099 * \return the length of the DER encoded ECDSA_SIG object or 0
1100 */
1101 int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp);
1102
1103 /** Decodes a DER encoded ECDSA signature (note: this function changes *pp
1104 * (*pp += len)).
1105 * \param sig pointer to ECDSA_SIG pointer (may be NULL)
1106 * \param pp memory buffer with the DER encoded signature
1107 * \param len length of the buffer
1108 * \return pointer to the decoded ECDSA_SIG structure (or NULL)
1109 */
1110 ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len);
1111
1112 /** Accessor for r and s fields of ECDSA_SIG
1113 * \param sig pointer to ECDSA_SIG pointer
1114 * \param pr pointer to BIGNUM pointer for r (may be NULL)
1115 * \param ps pointer to BIGNUM pointer for s (may be NULL)
1116 */
1117 void ECDSA_SIG_get0(BIGNUM **pr, BIGNUM **ps, ECDSA_SIG *sig);
1118
1119 /** Computes the ECDSA signature of the given hash value using
1120 * the supplied private key and returns the created signature.
1121 * \param dgst pointer to the hash value
1122 * \param dgst_len length of the hash value
1123 * \param eckey EC_KEY object containing a private EC key
1124 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
1125 */
1126 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len,
1127 EC_KEY *eckey);
1128
1129 /** Computes ECDSA signature of a given hash value using the supplied
1130 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
1131 * \param dgst pointer to the hash value to sign
1132 * \param dgstlen length of the hash value
1133 * \param kinv BIGNUM with a pre-computed inverse k (optional)
1134 * \param rp BIGNUM with a pre-computed rp value (optioanl),
1135 * see ECDSA_sign_setup
1136 * \param eckey EC_KEY object containing a private EC key
1137 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
1138 */
1139 ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen,
1140 const BIGNUM *kinv, const BIGNUM *rp,
1141 EC_KEY *eckey);
1142
1143 /** Verifies that the supplied signature is a valid ECDSA
1144 * signature of the supplied hash value using the supplied public key.
1145 * \param dgst pointer to the hash value
1146 * \param dgst_len length of the hash value
1147 * \param sig ECDSA_SIG structure
1148 * \param eckey EC_KEY object containing a public EC key
1149 * \return 1 if the signature is valid, 0 if the signature is invalid
1150 * and -1 on error
1151 */
1152 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
1153 const ECDSA_SIG *sig, EC_KEY *eckey);
1154
1155 /** Precompute parts of the signing operation
1156 * \param eckey EC_KEY object containing a private EC key
1157 * \param ctx BN_CTX object (optional)
1158 * \param kinv BIGNUM pointer for the inverse of k
1159 * \param rp BIGNUM pointer for x coordinate of k * generator
1160 * \return 1 on success and 0 otherwise
1161 */
1162 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **rp);
1163
1164 /** Computes ECDSA signature of a given hash value using the supplied
1165 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
1166 * \param type this parameter is ignored
1167 * \param dgst pointer to the hash value to sign
1168 * \param dgstlen length of the hash value
1169 * \param sig memory for the DER encoded created signature
1170 * \param siglen pointer to the length of the returned signature
1171 * \param eckey EC_KEY object containing a private EC key
1172 * \return 1 on success and 0 otherwise
1173 */
1174 int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen,
1175 unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
1176
1177 /** Computes ECDSA signature of a given hash value using the supplied
1178 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
1179 * \param type this parameter is ignored
1180 * \param dgst pointer to the hash value to sign
1181 * \param dgstlen length of the hash value
1182 * \param sig buffer to hold the DER encoded signature
1183 * \param siglen pointer to the length of the returned signature
1184 * \param kinv BIGNUM with a pre-computed inverse k (optional)
1185 * \param rp BIGNUM with a pre-computed rp value (optioanl),
1186 * see ECDSA_sign_setup
1187 * \param eckey EC_KEY object containing a private EC key
1188 * \return 1 on success and 0 otherwise
1189 */
1190 int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen,
1191 unsigned char *sig, unsigned int *siglen,
1192 const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey);
1193
1194 /** Verifies that the given signature is valid ECDSA signature
1195 * of the supplied hash value using the specified public key.
1196 * \param type this parameter is ignored
1197 * \param dgst pointer to the hash value
1198 * \param dgstlen length of the hash value
1199 * \param sig pointer to the DER encoded signature
1200 * \param siglen length of the DER encoded signature
1201 * \param eckey EC_KEY object containing a public EC key
1202 * \return 1 if the signature is valid, 0 if the signature is invalid
1203 * and -1 on error
1204 */
1205 int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen,
1206 const unsigned char *sig, int siglen, EC_KEY *eckey);
1207
1208 /** Returns the maximum length of the DER encoded signature
1209 * \param eckey EC_KEY object
1210 * \return numbers of bytes required for the DER encoded signature
1211 */
1212 int ECDSA_size(const EC_KEY *eckey);
1213
1214 /********************************************************************/
1215 /* EC_KEY_METHOD constructors, destructors, writers and accessors */
1216 /********************************************************************/
1217
1218 EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth);
1219 void EC_KEY_METHOD_free(EC_KEY_METHOD *meth);
1220 void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth,
1221 int (*init)(EC_KEY *key),
1222 void (*finish)(EC_KEY *key),
1223 int (*copy)(EC_KEY *dest, const EC_KEY *src),
1224 int (*set_group)(EC_KEY *key, const EC_GROUP *grp),
1225 int (*set_private)(EC_KEY *key,
1226 const BIGNUM *priv_key),
1227 int (*set_public)(EC_KEY *key,
1228 const EC_POINT *pub_key));
1229
1230 void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth,
1231 int (*keygen)(EC_KEY *key));
1232
1233 void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth,
1234 int (*ckey)(unsigned char **psec,
1235 size_t *pseclen,
1236 const EC_POINT *pub_key,
1237 const EC_KEY *ecdh));
1238
1239 void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth,
1240 int (*sign)(int type, const unsigned char *dgst,
1241 int dlen, unsigned char *sig,
1242 unsigned int *siglen,
1243 const BIGNUM *kinv, const BIGNUM *r,
1244 EC_KEY *eckey),
1245 int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
1246 BIGNUM **kinvp, BIGNUM **rp),
1247 ECDSA_SIG *(*sign_sig)(const unsigned char *dgst,
1248 int dgst_len,
1249 const BIGNUM *in_kinv,
1250 const BIGNUM *in_r,
1251 EC_KEY *eckey));
1252
1253 void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth,
1254 int (*verify)(int type, const unsigned
1255 char *dgst, int dgst_len,
1256 const unsigned char *sigbuf,
1257 int sig_len, EC_KEY *eckey),
1258 int (*verify_sig)(const unsigned char *dgst,
1259 int dgst_len,
1260 const ECDSA_SIG *sig,
1261 EC_KEY *eckey));
1262
1263 void EC_KEY_METHOD_get_init(EC_KEY_METHOD *meth,
1264 int (**pinit)(EC_KEY *key),
1265 void (**pfinish)(EC_KEY *key),
1266 int (**pcopy)(EC_KEY *dest, const EC_KEY *src),
1267 int (**pset_group)(EC_KEY *key,
1268 const EC_GROUP *grp),
1269 int (**pset_private)(EC_KEY *key,
1270 const BIGNUM *priv_key),
1271 int (**pset_public)(EC_KEY *key,
1272 const EC_POINT *pub_key));
1273
1274 void EC_KEY_METHOD_get_keygen(EC_KEY_METHOD *meth,
1275 int (**pkeygen)(EC_KEY *key));
1276
1277 void EC_KEY_METHOD_get_compute_key(EC_KEY_METHOD *meth,
1278 int (**pck)(unsigned char **psec,
1279 size_t *pseclen,
1280 const EC_POINT *pub_key,
1281 const EC_KEY *ecdh));
1282
1283 void EC_KEY_METHOD_get_sign(EC_KEY_METHOD *meth,
1284 int (**psign)(int type, const unsigned char *dgst,
1285 int dlen, unsigned char *sig,
1286 unsigned int *siglen,
1287 const BIGNUM *kinv, const BIGNUM *r,
1288 EC_KEY *eckey),
1289 int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
1290 BIGNUM **kinvp, BIGNUM **rp),
1291 ECDSA_SIG *(**psign_sig)(const unsigned char *dgst,
1292 int dgst_len,
1293 const BIGNUM *in_kinv,
1294 const BIGNUM *in_r,
1295 EC_KEY *eckey));
1296
1297 void EC_KEY_METHOD_get_verify(EC_KEY_METHOD *meth,
1298 int (**pverify)(int type, const unsigned
1299 char *dgst, int dgst_len,
1300 const unsigned char *sigbuf,
1301 int sig_len, EC_KEY *eckey),
1302 int (**pverify_sig)(const unsigned char *dgst,
1303 int dgst_len,
1304 const ECDSA_SIG *sig,
1305 EC_KEY *eckey));
1306
1307 # define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
1308
1309 # ifndef __cplusplus
1310 # if defined(__SUNPRO_C)
1311 # if __SUNPRO_C >= 0x520
1312 # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
1313 # endif
1314 # endif
1315 # endif
1316
1317 # define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \
1318 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1319 EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \
1320 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL)
1321
1322 # define EVP_PKEY_CTX_set_ec_param_enc(ctx, flag) \
1323 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1324 EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \
1325 EVP_PKEY_CTRL_EC_PARAM_ENC, flag, NULL)
1326
1327 # define EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, flag) \
1328 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1329 EVP_PKEY_OP_DERIVE, \
1330 EVP_PKEY_CTRL_EC_ECDH_COFACTOR, flag, NULL)
1331
1332 # define EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx) \
1333 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1334 EVP_PKEY_OP_DERIVE, \
1335 EVP_PKEY_CTRL_EC_ECDH_COFACTOR, -2, NULL)
1336
1337 # define EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, kdf) \
1338 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1339 EVP_PKEY_OP_DERIVE, \
1340 EVP_PKEY_CTRL_EC_KDF_TYPE, kdf, NULL)
1341
1342 # define EVP_PKEY_CTX_get_ecdh_kdf_type(ctx) \
1343 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1344 EVP_PKEY_OP_DERIVE, \
1345 EVP_PKEY_CTRL_EC_KDF_TYPE, -2, NULL)
1346
1347 # define EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md) \
1348 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1349 EVP_PKEY_OP_DERIVE, \
1350 EVP_PKEY_CTRL_EC_KDF_MD, 0, (void *)md)
1351
1352 # define EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, pmd) \
1353 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1354 EVP_PKEY_OP_DERIVE, \
1355 EVP_PKEY_CTRL_GET_EC_KDF_MD, 0, (void *)pmd)
1356
1357 # define EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, len) \
1358 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1359 EVP_PKEY_OP_DERIVE, \
1360 EVP_PKEY_CTRL_EC_KDF_OUTLEN, len, NULL)
1361
1362 # define EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, plen) \
1363 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1364 EVP_PKEY_OP_DERIVE, \
1365 EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN, 0, (void *)plen)
1366
1367 # define EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p, plen) \
1368 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1369 EVP_PKEY_OP_DERIVE, \
1370 EVP_PKEY_CTRL_EC_KDF_UKM, plen, (void *)p)
1371
1372 # define EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p) \
1373 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1374 EVP_PKEY_OP_DERIVE, \
1375 EVP_PKEY_CTRL_GET_EC_KDF_UKM, 0, (void *)p)
1376
1377 # define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1)
1378 # define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2)
1379 # define EVP_PKEY_CTRL_EC_ECDH_COFACTOR (EVP_PKEY_ALG_CTRL + 3)
1380 # define EVP_PKEY_CTRL_EC_KDF_TYPE (EVP_PKEY_ALG_CTRL + 4)
1381 # define EVP_PKEY_CTRL_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 5)
1382 # define EVP_PKEY_CTRL_GET_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 6)
1383 # define EVP_PKEY_CTRL_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 7)
1384 # define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8)
1385 # define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9)
1386 # define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10)
1387 /* KDF types */
1388 # define EVP_PKEY_ECDH_KDF_NONE 1
1389 # define EVP_PKEY_ECDH_KDF_X9_62 2
1390
1391 /* BEGIN ERROR CODES */
1392 /*
1393 * The following lines are auto generated by the script mkerr.pl. Any changes
1394 * made after this point may be overwritten when the script is next run.
1395 */
1396 void ERR_load_EC_strings(void);
1397
1398 /* Error codes for the EC functions. */
1399
1400 /* Function codes. */
1401 # define EC_F_BN_TO_FELEM 224
1402 # define EC_F_COMPUTE_WNAF 143
1403 # define EC_F_D2I_ECPARAMETERS 144
1404 # define EC_F_D2I_ECPKPARAMETERS 145
1405 # define EC_F_D2I_ECPRIVATEKEY 146
1406 # define EC_F_DO_EC_KEY_PRINT 221
1407 # define EC_F_ECDH_CMS_DECRYPT 238
1408 # define EC_F_ECDH_CMS_SET_SHARED_INFO 239
1409 # define EC_F_ECDH_COMPUTE_KEY 246
1410 # define EC_F_ECDH_SIMPLE_COMPUTE_KEY 257
1411 # define EC_F_ECDSA_DO_SIGN_EX 251
1412 # define EC_F_ECDSA_DO_VERIFY 252
1413 # define EC_F_ECDSA_SIGN_EX 254
1414 # define EC_F_ECDSA_SIGN_SETUP 248
1415 # define EC_F_ECDSA_VERIFY 253
1416 # define EC_F_ECKEY_PARAM2TYPE 223
1417 # define EC_F_ECKEY_PARAM_DECODE 212
1418 # define EC_F_ECKEY_PRIV_DECODE 213
1419 # define EC_F_ECKEY_PRIV_ENCODE 214
1420 # define EC_F_ECKEY_PUB_DECODE 215
1421 # define EC_F_ECKEY_PUB_ENCODE 216
1422 # define EC_F_ECKEY_TYPE2PARAM 220
1423 # define EC_F_ECPARAMETERS_PRINT 147
1424 # define EC_F_ECPARAMETERS_PRINT_FP 148
1425 # define EC_F_ECPKPARAMETERS_PRINT 149
1426 # define EC_F_ECPKPARAMETERS_PRINT_FP 150
1427 # define EC_F_ECP_NISTZ256_GET_AFFINE 240
1428 # define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE 243
1429 # define EC_F_ECP_NISTZ256_POINTS_MUL 241
1430 # define EC_F_ECP_NISTZ256_PRE_COMP_NEW 244
1431 # define EC_F_ECP_NISTZ256_WINDOWED_MUL 242
1432 # define EC_F_ECP_NIST_MOD_192 203
1433 # define EC_F_ECP_NIST_MOD_224 204
1434 # define EC_F_ECP_NIST_MOD_256 205
1435 # define EC_F_ECP_NIST_MOD_521 206
1436 # define EC_F_EC_ASN1_GROUP2CURVE 153
1437 # define EC_F_EC_ASN1_GROUP2FIELDID 154
1438 # define EC_F_EC_ASN1_GROUP2PARAMETERS 155
1439 # define EC_F_EC_ASN1_GROUP2PKPARAMETERS 156
1440 # define EC_F_EC_ASN1_PARAMETERS2GROUP 157
1441 # define EC_F_EC_ASN1_PKPARAMETERS2GROUP 158
1442 # define EC_F_EC_EX_DATA_SET_DATA 211
1443 # define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY 208
1444 # define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 159
1445 # define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE 195
1446 # define EC_F_EC_GF2M_SIMPLE_OCT2POINT 160
1447 # define EC_F_EC_GF2M_SIMPLE_POINT2OCT 161
1448 # define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
1449 # define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
1450 # define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES 164
1451 # define EC_F_EC_GFP_MONT_FIELD_DECODE 133
1452 # define EC_F_EC_GFP_MONT_FIELD_ENCODE 134
1453 # define EC_F_EC_GFP_MONT_FIELD_MUL 131
1454 # define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE 209
1455 # define EC_F_EC_GFP_MONT_FIELD_SQR 132
1456 # define EC_F_EC_GFP_MONT_GROUP_SET_CURVE 189
1457 # define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP 135
1458 # define EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE 225
1459 # define EC_F_EC_GFP_NISTP224_POINTS_MUL 228
1460 # define EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES 226
1461 # define EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE 230
1462 # define EC_F_EC_GFP_NISTP256_POINTS_MUL 231
1463 # define EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES 232
1464 # define EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE 233
1465 # define EC_F_EC_GFP_NISTP521_POINTS_MUL 234
1466 # define EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES 235
1467 # define EC_F_EC_GFP_NIST_FIELD_MUL 200
1468 # define EC_F_EC_GFP_NIST_FIELD_SQR 201
1469 # define EC_F_EC_GFP_NIST_GROUP_SET_CURVE 202
1470 # define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 165
1471 # define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE 166
1472 # define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100
1473 # define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101
1474 # define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102
1475 # define EC_F_EC_GFP_SIMPLE_OCT2POINT 103
1476 # define EC_F_EC_GFP_SIMPLE_POINT2OCT 104
1477 # define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137
1478 # define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES 167
1479 # define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
1480 # define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES 168
1481 # define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
1482 # define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES 169
1483 # define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
1484 # define EC_F_EC_GROUP_CHECK 170
1485 # define EC_F_EC_GROUP_CHECK_DISCRIMINANT 171
1486 # define EC_F_EC_GROUP_COPY 106
1487 # define EC_F_EC_GROUP_GET0_GENERATOR 139
1488 # define EC_F_EC_GROUP_GET_COFACTOR 140
1489 # define EC_F_EC_GROUP_GET_CURVE_GF2M 172
1490 # define EC_F_EC_GROUP_GET_CURVE_GFP 130
1491 # define EC_F_EC_GROUP_GET_DEGREE 173
1492 # define EC_F_EC_GROUP_GET_ORDER 141
1493 # define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193
1494 # define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194
1495 # define EC_F_EC_GROUP_NEW 108
1496 # define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174
1497 # define EC_F_EC_GROUP_NEW_FROM_DATA 175
1498 # define EC_F_EC_GROUP_PRECOMPUTE_MULT 142
1499 # define EC_F_EC_GROUP_SET_CURVE_GF2M 176
1500 # define EC_F_EC_GROUP_SET_CURVE_GFP 109
1501 # define EC_F_EC_GROUP_SET_EXTRA_DATA 110
1502 # define EC_F_EC_GROUP_SET_GENERATOR 111
1503 # define EC_F_EC_KEY_CHECK_KEY 177
1504 # define EC_F_EC_KEY_COPY 178
1505 # define EC_F_EC_KEY_GENERATE_KEY 179
1506 # define EC_F_EC_KEY_NEW 182
1507 # define EC_F_EC_KEY_NEW_METHOD 245
1508 # define EC_F_EC_KEY_OCT2PRIV 255
1509 # define EC_F_EC_KEY_PRINT 180
1510 # define EC_F_EC_KEY_PRINT_FP 181
1511 # define EC_F_EC_KEY_PRIV2OCT 256
1512 # define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES 229
1513 # define EC_F_EC_KEY_SIMPLE_CHECK_KEY 258
1514 # define EC_F_EC_KEY_SIMPLE_OCT2PRIV 259
1515 # define EC_F_EC_KEY_SIMPLE_PRIV2OCT 260
1516 # define EC_F_EC_POINTS_MAKE_AFFINE 136
1517 # define EC_F_EC_POINT_ADD 112
1518 # define EC_F_EC_POINT_CMP 113
1519 # define EC_F_EC_POINT_COPY 114
1520 # define EC_F_EC_POINT_DBL 115
1521 # define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 183
1522 # define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116
1523 # define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117
1524 # define EC_F_EC_POINT_INVERT 210
1525 # define EC_F_EC_POINT_IS_AT_INFINITY 118
1526 # define EC_F_EC_POINT_IS_ON_CURVE 119
1527 # define EC_F_EC_POINT_MAKE_AFFINE 120
1528 # define EC_F_EC_POINT_MUL 184
1529 # define EC_F_EC_POINT_NEW 121
1530 # define EC_F_EC_POINT_OCT2POINT 122
1531 # define EC_F_EC_POINT_POINT2OCT 123
1532 # define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 185
1533 # define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124
1534 # define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 186
1535 # define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125
1536 # define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126
1537 # define EC_F_EC_POINT_SET_TO_INFINITY 127
1538 # define EC_F_EC_PRE_COMP_DUP 207
1539 # define EC_F_EC_PRE_COMP_NEW 196
1540 # define EC_F_EC_WNAF_MUL 187
1541 # define EC_F_EC_WNAF_PRECOMPUTE_MULT 188
1542 # define EC_F_I2D_ECPARAMETERS 190
1543 # define EC_F_I2D_ECPKPARAMETERS 191
1544 # define EC_F_I2D_ECPRIVATEKEY 192
1545 # define EC_F_I2O_ECPUBLICKEY 151
1546 # define EC_F_NISTP224_PRE_COMP_NEW 227
1547 # define EC_F_NISTP256_PRE_COMP_NEW 236
1548 # define EC_F_NISTP521_PRE_COMP_NEW 237
1549 # define EC_F_O2I_ECPUBLICKEY 152
1550 # define EC_F_OLD_EC_PRIV_DECODE 222
1551 # define EC_F_OSSL_ECDH_COMPUTE_KEY 247
1552 # define EC_F_OSSL_ECDSA_SIGN_SIG 249
1553 # define EC_F_OSSL_ECDSA_VERIFY_SIG 250
1554 # define EC_F_PKEY_EC_CTRL 197
1555 # define EC_F_PKEY_EC_CTRL_STR 198
1556 # define EC_F_PKEY_EC_DERIVE 217
1557 # define EC_F_PKEY_EC_KEYGEN 199
1558 # define EC_F_PKEY_EC_PARAMGEN 219
1559 # define EC_F_PKEY_EC_SIGN 218
1560
1561 /* Reason codes. */
1562 # define EC_R_ASN1_ERROR 115
1563 # define EC_R_ASN1_UNKNOWN_FIELD 116
1564 # define EC_R_BAD_SIGNATURE 156
1565 # define EC_R_BIGNUM_OUT_OF_RANGE 144
1566 # define EC_R_BUFFER_TOO_SMALL 100
1567 # define EC_R_COORDINATES_OUT_OF_RANGE 146
1568 # define EC_R_CURVE_DOES_NOT_SUPPORT_ECDH 160
1569 # define EC_R_CURVE_DOES_NOT_SUPPORT_SIGNING 159
1570 # define EC_R_D2I_ECPKPARAMETERS_FAILURE 117
1571 # define EC_R_DECODE_ERROR 142
1572 # define EC_R_DISCRIMINANT_IS_ZERO 118
1573 # define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 119
1574 # define EC_R_FIELD_TOO_LARGE 143
1575 # define EC_R_GF2M_NOT_SUPPORTED 147
1576 # define EC_R_GROUP2PKPARAMETERS_FAILURE 120
1577 # define EC_R_I2D_ECPKPARAMETERS_FAILURE 121
1578 # define EC_R_INCOMPATIBLE_OBJECTS 101
1579 # define EC_R_INVALID_ARGUMENT 112
1580 # define EC_R_INVALID_COMPRESSED_POINT 110
1581 # define EC_R_INVALID_COMPRESSION_BIT 109
1582 # define EC_R_INVALID_CURVE 141
1583 # define EC_R_INVALID_DIGEST 151
1584 # define EC_R_INVALID_DIGEST_TYPE 138
1585 # define EC_R_INVALID_ENCODING 102
1586 # define EC_R_INVALID_FIELD 103
1587 # define EC_R_INVALID_FORM 104
1588 # define EC_R_INVALID_GROUP_ORDER 122
1589 # define EC_R_INVALID_PENTANOMIAL_BASIS 132
1590 # define EC_R_INVALID_PRIVATE_KEY 123
1591 # define EC_R_INVALID_TRINOMIAL_BASIS 137
1592 # define EC_R_KDF_FAILED 153
1593 # define EC_R_KDF_PARAMETER_ERROR 148
1594 # define EC_R_KEYS_NOT_SET 140
1595 # define EC_R_MISSING_PARAMETERS 124
1596 # define EC_R_MISSING_PRIVATE_KEY 125
1597 # define EC_R_NEED_NEW_SETUP_VALUES 157
1598 # define EC_R_NOT_A_NIST_PRIME 135
1599 # define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136
1600 # define EC_R_NOT_IMPLEMENTED 126
1601 # define EC_R_NOT_INITIALIZED 111
1602 # define EC_R_NO_FIELD_MOD 133
1603 # define EC_R_NO_PARAMETERS_SET 139
1604 # define EC_R_NO_PRIVATE_VALUE 154
1605 # define EC_R_OPERATION_NOT_SUPPORTED 152
1606 # define EC_R_PASSED_NULL_PARAMETER 134
1607 # define EC_R_PEER_KEY_ERROR 149
1608 # define EC_R_PKPARAMETERS2GROUP_FAILURE 127
1609 # define EC_R_POINT_ARITHMETIC_FAILURE 155
1610 # define EC_R_POINT_AT_INFINITY 106
1611 # define EC_R_POINT_IS_NOT_ON_CURVE 107
1612 # define EC_R_RANDOM_NUMBER_GENERATION_FAILED 158
1613 # define EC_R_SHARED_INFO_ERROR 150
1614 # define EC_R_SLOT_FULL 108
1615 # define EC_R_UNDEFINED_GENERATOR 113
1616 # define EC_R_UNDEFINED_ORDER 128
1617 # define EC_R_UNKNOWN_GROUP 129
1618 # define EC_R_UNKNOWN_ORDER 114
1619 # define EC_R_UNSUPPORTED_FIELD 131
1620 # define EC_R_WRONG_CURVE_PARAMETERS 145
1621 # define EC_R_WRONG_ORDER 130
1622
1623 #ifdef __cplusplus
1624 }
1625 #endif
1626 #endif
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