Correct PPTP server firewall rules chain.
[tomato/davidwu.git] / release / src / router / openssl / crypto / ec / ec.h
blob572111f16cd143280c8eadc1bf4ff295c50e6a18
1 /* crypto/ec/ec.h */
2 /*
3 * Originally written by Bodo Moeller for the OpenSSL project.
4 */
5 /**
6 * \file crypto/ec/ec.h Include file for the OpenSSL EC functions
7 * \author Originally written by Bodo Moeller for the OpenSSL project
8 */
9 /* ====================================================================
10 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the
22 * distribution.
24 * 3. All advertising materials mentioning features or use of this
25 * software must display the following acknowledgment:
26 * "This product includes software developed by the OpenSSL Project
27 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
29 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
30 * endorse or promote products derived from this software without
31 * prior written permission. For written permission, please contact
32 * openssl-core@openssl.org.
34 * 5. Products derived from this software may not be called "OpenSSL"
35 * nor may "OpenSSL" appear in their names without prior written
36 * permission of the OpenSSL Project.
38 * 6. Redistributions of any form whatsoever must retain the following
39 * acknowledgment:
40 * "This product includes software developed by the OpenSSL Project
41 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
43 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
44 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
47 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
50 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
52 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
54 * OF THE POSSIBILITY OF SUCH DAMAGE.
55 * ====================================================================
57 * This product includes cryptographic software written by Eric Young
58 * (eay@cryptsoft.com). This product includes software written by Tim
59 * Hudson (tjh@cryptsoft.com).
62 /* ====================================================================
63 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
65 * Portions of the attached software ("Contribution") are developed by
66 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
68 * The Contribution is licensed pursuant to the OpenSSL open source
69 * license provided above.
71 * The elliptic curve binary polynomial software is originally written by
72 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
76 #ifndef HEADER_EC_H
77 #define HEADER_EC_H
79 #include <openssl/opensslconf.h>
81 #ifdef OPENSSL_NO_EC
82 #error EC is disabled.
83 #endif
85 #include <openssl/asn1.h>
86 #include <openssl/symhacks.h>
87 #ifndef OPENSSL_NO_DEPRECATED
88 #include <openssl/bn.h>
89 #endif
91 #ifdef __cplusplus
92 extern "C" {
93 #elif defined(__SUNPRO_C)
94 # if __SUNPRO_C >= 0x520
95 # pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
96 # endif
97 #endif
100 #ifndef OPENSSL_ECC_MAX_FIELD_BITS
101 # define OPENSSL_ECC_MAX_FIELD_BITS 661
102 #endif
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 0x02 */
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;
118 typedef struct ec_method_st EC_METHOD;
120 typedef struct ec_group_st
122 EC_METHOD *meth;
123 -- field definition
124 -- curve coefficients
125 -- optional generator with associated information (order, cofactor)
126 -- optional extra data (precomputed table for fast computation of multiples of generator)
127 -- ASN1 stuff
129 EC_GROUP;
131 typedef struct ec_point_st EC_POINT;
134 /********************************************************************/
135 /* EC_METHODs for curves over GF(p) */
136 /********************************************************************/
138 /** Returns the basic GFp ec methods which provides the basis for the
139 * optimized methods.
140 * \return EC_METHOD object
142 const EC_METHOD *EC_GFp_simple_method(void);
144 /** Returns GFp methods using montgomery multiplication.
145 * \return EC_METHOD object
147 const EC_METHOD *EC_GFp_mont_method(void);
149 /** Returns GFp methods using optimized methods for NIST recommended curves
150 * \return EC_METHOD object
152 const EC_METHOD *EC_GFp_nist_method(void);
154 #ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
155 /** Returns 64-bit optimized methods for nistp224
156 * \return EC_METHOD object
158 const EC_METHOD *EC_GFp_nistp224_method(void);
160 /** Returns 64-bit optimized methods for nistp256
161 * \return EC_METHOD object
163 const EC_METHOD *EC_GFp_nistp256_method(void);
165 /** Returns 64-bit optimized methods for nistp521
166 * \return EC_METHOD object
168 const EC_METHOD *EC_GFp_nistp521_method(void);
169 #endif
171 #ifndef OPENSSL_NO_EC2M
172 /********************************************************************/
173 /* EC_METHOD for curves over GF(2^m) */
174 /********************************************************************/
176 /** Returns the basic GF2m ec method
177 * \return EC_METHOD object
179 const EC_METHOD *EC_GF2m_simple_method(void);
181 #endif
184 /********************************************************************/
185 /* EC_GROUP functions */
186 /********************************************************************/
188 /** Creates a new EC_GROUP object
189 * \param meth EC_METHOD to use
190 * \return newly created EC_GROUP object or NULL in case of an error.
192 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth);
194 /** Frees a EC_GROUP object
195 * \param group EC_GROUP object to be freed.
197 void EC_GROUP_free(EC_GROUP *group);
199 /** Clears and frees a EC_GROUP object
200 * \param group EC_GROUP object to be cleared and freed.
202 void EC_GROUP_clear_free(EC_GROUP *group);
204 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD.
205 * \param dst destination EC_GROUP object
206 * \param src source EC_GROUP object
207 * \return 1 on success and 0 if an error occurred.
209 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src);
211 /** Creates a new EC_GROUP object and copies the copies the content
212 * form src to the newly created EC_KEY object
213 * \param src source EC_GROUP object
214 * \return newly created EC_GROUP object or NULL in case of an error.
216 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);
218 /** Returns the EC_METHOD of the EC_GROUP object.
219 * \param group EC_GROUP object
220 * \return EC_METHOD used in this EC_GROUP object.
222 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);
224 /** Returns the field type of the EC_METHOD.
225 * \param meth EC_METHOD object
226 * \return NID of the underlying field type OID.
228 int EC_METHOD_get_field_type(const EC_METHOD *meth);
230 /** Sets the generator and it's order/cofactor of a EC_GROUP object.
231 * \param group EC_GROUP object
232 * \param generator EC_POINT object with the generator.
233 * \param order the order of the group generated by the generator.
234 * \param cofactor the index of the sub-group generated by the generator
235 * in the group of all points on the elliptic curve.
236 * \return 1 on success and 0 if an error occured
238 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor);
240 /** Returns the generator of a EC_GROUP object.
241 * \param group EC_GROUP object
242 * \return the currently used generator (possibly NULL).
244 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
246 /** Gets the order of a EC_GROUP
247 * \param group EC_GROUP object
248 * \param order BIGNUM to which the order is copied
249 * \param ctx BN_CTX object (optional)
250 * \return 1 on success and 0 if an error occured
252 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
254 /** Gets the cofactor of a EC_GROUP
255 * \param group EC_GROUP object
256 * \param cofactor BIGNUM to which the cofactor is copied
257 * \param ctx BN_CTX object (optional)
258 * \return 1 on success and 0 if an error occured
260 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx);
262 /** Sets the name of a EC_GROUP object
263 * \param group EC_GROUP object
264 * \param nid NID of the curve name OID
266 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
268 /** Returns the curve name of a EC_GROUP object
269 * \param group EC_GROUP object
270 * \return NID of the curve name OID or 0 if not set.
272 int EC_GROUP_get_curve_name(const EC_GROUP *group);
274 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
275 int EC_GROUP_get_asn1_flag(const EC_GROUP *group);
277 void EC_GROUP_set_point_conversion_form(EC_GROUP *group, point_conversion_form_t form);
278 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
280 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x);
281 size_t EC_GROUP_get_seed_len(const EC_GROUP *);
282 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
284 /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b
285 * \param group EC_GROUP object
286 * \param p BIGNUM with the prime number
287 * \param a BIGNUM with parameter a of the equation
288 * \param b BIGNUM with parameter b of the equation
289 * \param ctx BN_CTX object (optional)
290 * \return 1 on success and 0 if an error occured
292 int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
294 /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b
295 * \param group EC_GROUP object
296 * \param p BIGNUM for the prime number
297 * \param a BIGNUM for parameter a of the equation
298 * \param b BIGNUM for parameter b of the equation
299 * \param ctx BN_CTX object (optional)
300 * \return 1 on success and 0 if an error occured
302 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
304 #ifndef OPENSSL_NO_EC2M
305 /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
306 * \param group EC_GROUP object
307 * \param p BIGNUM with the polynomial defining the underlying field
308 * \param a BIGNUM with parameter a of the equation
309 * \param b BIGNUM with parameter b of the equation
310 * \param ctx BN_CTX object (optional)
311 * \return 1 on success and 0 if an error occured
313 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
315 /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
316 * \param group EC_GROUP object
317 * \param p BIGNUM for the polynomial defining the underlying field
318 * \param a BIGNUM for parameter a of the equation
319 * \param b BIGNUM for parameter b of the equation
320 * \param ctx BN_CTX object (optional)
321 * \return 1 on success and 0 if an error occured
323 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
324 #endif
325 /** Returns the number of bits needed to represent a field element
326 * \param group EC_GROUP object
327 * \return number of bits needed to represent a field element
329 int EC_GROUP_get_degree(const EC_GROUP *group);
331 /** Checks whether the parameter in the EC_GROUP define a valid ec group
332 * \param group EC_GROUP object
333 * \param ctx BN_CTX object (optional)
334 * \return 1 if group is a valid ec group and 0 otherwise
336 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
338 /** Checks whether the discriminant of the elliptic curve is zero or not
339 * \param group EC_GROUP object
340 * \param ctx BN_CTX object (optional)
341 * \return 1 if the discriminant is not zero and 0 otherwise
343 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);
345 /** Compares two EC_GROUP objects
346 * \param a first EC_GROUP object
347 * \param b second EC_GROUP object
348 * \param ctx BN_CTX object (optional)
349 * \return 0 if both groups are equal and 1 otherwise
351 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);
353 /* EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*()
354 * after choosing an appropriate EC_METHOD */
356 /** Creates a new EC_GROUP object with the specified parameters defined
357 * over GFp (defined by the equation y^2 = x^3 + a*x + b)
358 * \param p BIGNUM with the prime number
359 * \param a BIGNUM with the parameter a of the equation
360 * \param b BIGNUM with the parameter b of the equation
361 * \param ctx BN_CTX object (optional)
362 * \return newly created EC_GROUP object with the specified parameters
364 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
365 #ifndef OPENSSL_NO_EC2M
366 /** Creates a new EC_GROUP object with the specified parameters defined
367 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
368 * \param p BIGNUM with the polynomial defining the underlying field
369 * \param a BIGNUM with the parameter a of the equation
370 * \param b BIGNUM with the parameter b of the equation
371 * \param ctx BN_CTX object (optional)
372 * \return newly created EC_GROUP object with the specified parameters
374 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
375 #endif
376 /** Creates a EC_GROUP object with a curve specified by a NID
377 * \param nid NID of the OID of the curve name
378 * \return newly created EC_GROUP object with specified curve or NULL
379 * if an error occurred
381 EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
384 /********************************************************************/
385 /* handling of internal curves */
386 /********************************************************************/
388 typedef struct {
389 int nid;
390 const char *comment;
391 } EC_builtin_curve;
393 /* EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number
394 * of all available curves or zero if a error occurred.
395 * In case r ist not zero nitems EC_builtin_curve structures
396 * are filled with the data of the first nitems internal groups */
397 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
400 /********************************************************************/
401 /* EC_POINT functions */
402 /********************************************************************/
404 /** Creates a new EC_POINT object for the specified EC_GROUP
405 * \param group EC_GROUP the underlying EC_GROUP object
406 * \return newly created EC_POINT object or NULL if an error occurred
408 EC_POINT *EC_POINT_new(const EC_GROUP *group);
410 /** Frees a EC_POINT object
411 * \param point EC_POINT object to be freed
413 void EC_POINT_free(EC_POINT *point);
415 /** Clears and frees a EC_POINT object
416 * \param point EC_POINT object to be cleared and freed
418 void EC_POINT_clear_free(EC_POINT *point);
420 /** Copies EC_POINT object
421 * \param dst destination EC_POINT object
422 * \param src source EC_POINT object
423 * \return 1 on success and 0 if an error occured
425 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);
427 /** Creates a new EC_POINT object and copies the content of the supplied
428 * EC_POINT
429 * \param src source EC_POINT object
430 * \param group underlying the EC_GROUP object
431 * \return newly created EC_POINT object or NULL if an error occurred
433 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);
435 /** Returns the EC_METHOD used in EC_POINT object
436 * \param point EC_POINT object
437 * \return the EC_METHOD used
439 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);
441 /** Sets a point to infinity (neutral element)
442 * \param group underlying EC_GROUP object
443 * \param point EC_POINT to set to infinity
444 * \return 1 on success and 0 if an error occured
446 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);
448 /** Sets 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 with the x-coordinate
452 * \param y BIGNUM with the y-coordinate
453 * \param z BIGNUM with the z-coordinate
454 * \param ctx BN_CTX object (optional)
455 * \return 1 on success and 0 if an error occured
457 int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
458 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx);
460 /** Gets the jacobian projective coordinates of a EC_POINT over GFp
461 * \param group underlying EC_GROUP object
462 * \param p EC_POINT object
463 * \param x BIGNUM for the x-coordinate
464 * \param y BIGNUM for the y-coordinate
465 * \param z BIGNUM for the z-coordinate
466 * \param ctx BN_CTX object (optional)
467 * \return 1 on success and 0 if an error occured
469 int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group,
470 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx);
472 /** Sets the affine coordinates of a EC_POINT over GFp
473 * \param group underlying EC_GROUP object
474 * \param p EC_POINT object
475 * \param x BIGNUM with the x-coordinate
476 * \param y BIGNUM with the y-coordinate
477 * \param ctx BN_CTX object (optional)
478 * \return 1 on success and 0 if an error occured
480 int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
481 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
483 /** Gets the affine coordinates of a EC_POINT over GFp
484 * \param group underlying EC_GROUP object
485 * \param p EC_POINT object
486 * \param x BIGNUM for the x-coordinate
487 * \param y BIGNUM for the y-coordinate
488 * \param ctx BN_CTX object (optional)
489 * \return 1 on success and 0 if an error occured
491 int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group,
492 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
494 /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp
495 * \param group underlying EC_GROUP object
496 * \param p EC_POINT object
497 * \param x BIGNUM with x-coordinate
498 * \param y_bit integer with the y-Bit (either 0 or 1)
499 * \param ctx BN_CTX object (optional)
500 * \return 1 on success and 0 if an error occured
502 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
503 const BIGNUM *x, int y_bit, BN_CTX *ctx);
504 #ifndef OPENSSL_NO_EC2M
505 /** Sets the affine coordinates of a EC_POINT over GF2m
506 * \param group underlying EC_GROUP object
507 * \param p EC_POINT object
508 * \param x BIGNUM with the x-coordinate
509 * \param y BIGNUM with the y-coordinate
510 * \param ctx BN_CTX object (optional)
511 * \return 1 on success and 0 if an error occured
513 int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
514 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
516 /** Gets the affine coordinates of a EC_POINT over GF2m
517 * \param group underlying EC_GROUP object
518 * \param p EC_POINT object
519 * \param x BIGNUM for the x-coordinate
520 * \param y BIGNUM for the y-coordinate
521 * \param ctx BN_CTX object (optional)
522 * \return 1 on success and 0 if an error occured
524 int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group,
525 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
527 /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m
528 * \param group underlying EC_GROUP object
529 * \param p EC_POINT object
530 * \param x BIGNUM with x-coordinate
531 * \param y_bit integer with the y-Bit (either 0 or 1)
532 * \param ctx BN_CTX object (optional)
533 * \return 1 on success and 0 if an error occured
535 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
536 const BIGNUM *x, int y_bit, BN_CTX *ctx);
537 #endif
538 /** Encodes a EC_POINT object to a octet string
539 * \param group underlying EC_GROUP object
540 * \param p EC_POINT object
541 * \param form point conversion form
542 * \param buf memory buffer for the result. If NULL the function returns
543 * required buffer size.
544 * \param len length of the memory buffer
545 * \param ctx BN_CTX object (optional)
546 * \return the length of the encoded octet string or 0 if an error occurred
548 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
549 point_conversion_form_t form,
550 unsigned char *buf, size_t len, BN_CTX *ctx);
552 /** Decodes a EC_POINT from a octet string
553 * \param group underlying EC_GROUP object
554 * \param p EC_POINT object
555 * \param buf memory buffer with the encoded ec point
556 * \param len length of the encoded ec point
557 * \param ctx BN_CTX object (optional)
558 * \return 1 on success and 0 if an error occured
560 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
561 const unsigned char *buf, size_t len, BN_CTX *ctx);
563 /* other interfaces to point2oct/oct2point: */
564 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
565 point_conversion_form_t form, BIGNUM *, BN_CTX *);
566 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
567 EC_POINT *, BN_CTX *);
568 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
569 point_conversion_form_t form, BN_CTX *);
570 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
571 EC_POINT *, BN_CTX *);
574 /********************************************************************/
575 /* functions for doing EC_POINT arithmetic */
576 /********************************************************************/
578 /** Computes the sum of two EC_POINT
579 * \param group underlying EC_GROUP object
580 * \param r EC_POINT object for the result (r = a + b)
581 * \param a EC_POINT object with the first summand
582 * \param b EC_POINT object with the second summand
583 * \param ctx BN_CTX object (optional)
584 * \return 1 on success and 0 if an error occured
586 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx);
588 /** Computes the double of a EC_POINT
589 * \param group underlying EC_GROUP object
590 * \param r EC_POINT object for the result (r = 2 * a)
591 * \param a EC_POINT object
592 * \param ctx BN_CTX object (optional)
593 * \return 1 on success and 0 if an error occured
595 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx);
597 /** Computes the inverse of a EC_POINT
598 * \param group underlying EC_GROUP object
599 * \param a EC_POINT object to be inverted (it's used for the result as well)
600 * \param ctx BN_CTX object (optional)
601 * \return 1 on success and 0 if an error occured
603 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);
605 /** Checks whether the point is the neutral element of the group
606 * \param group the underlying EC_GROUP object
607 * \param p EC_POINT object
608 * \return 1 if the point is the neutral element and 0 otherwise
610 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);
612 /** Checks whether the point is on the curve
613 * \param group underlying EC_GROUP object
614 * \param point EC_POINT object to check
615 * \param ctx BN_CTX object (optional)
616 * \return 1 if point if on the curve and 0 otherwise
618 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx);
620 /** Compares two EC_POINTs
621 * \param group underlying EC_GROUP object
622 * \param a first EC_POINT object
623 * \param b second EC_POINT object
624 * \param ctx BN_CTX object (optional)
625 * \return 0 if both points are equal and a value != 0 otherwise
627 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx);
629 int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx);
630 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, EC_POINT *points[], BN_CTX *ctx);
632 /** Computes r = generator * n sum_{i=0}^{num-1} p[i] * m[i]
633 * \param group underlying EC_GROUP object
634 * \param r EC_POINT object for the result
635 * \param n BIGNUM with the multiplier for the group generator (optional)
636 * \param num number futher summands
637 * \param p array of size num of EC_POINT objects
638 * \param m array of size num of BIGNUM objects
639 * \param ctx BN_CTX object (optional)
640 * \return 1 on success and 0 if an error occured
642 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, size_t num, const EC_POINT *p[], const BIGNUM *m[], BN_CTX *ctx);
644 /** Computes r = generator * n + q * m
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)
648 * \param q EC_POINT object with the first factor of the second summand
649 * \param m BIGNUM with the second factor of the second summand
650 * \param ctx BN_CTX object (optional)
651 * \return 1 on success and 0 if an error occured
653 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);
655 /** Stores multiples of generator for faster point multiplication
656 * \param group EC_GROUP object
657 * \param ctx BN_CTX object (optional)
658 * \return 1 on success and 0 if an error occured
660 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
662 /** Reports whether a precomputation has been done
663 * \param group EC_GROUP object
664 * \return 1 if a pre-computation has been done and 0 otherwise
666 int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
669 /********************************************************************/
670 /* ASN1 stuff */
671 /********************************************************************/
673 /* EC_GROUP_get_basis_type() returns the NID of the basis type
674 * used to represent the field elements */
675 int EC_GROUP_get_basis_type(const EC_GROUP *);
676 #ifndef OPENSSL_NO_EC2M
677 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
678 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
679 unsigned int *k2, unsigned int *k3);
680 #endif
682 #define OPENSSL_EC_NAMED_CURVE 0x001
684 typedef struct ecpk_parameters_st ECPKPARAMETERS;
686 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
687 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
689 #define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
690 #define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
691 #define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
692 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
693 #define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
694 (unsigned char *)(x))
696 #ifndef OPENSSL_NO_BIO
697 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
698 #endif
699 #ifndef OPENSSL_NO_FP_API
700 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
701 #endif
704 /********************************************************************/
705 /* EC_KEY functions */
706 /********************************************************************/
708 typedef struct ec_key_st EC_KEY;
710 /* some values for the encoding_flag */
711 #define EC_PKEY_NO_PARAMETERS 0x001
712 #define EC_PKEY_NO_PUBKEY 0x002
714 /* some values for the flags field */
715 #define EC_FLAG_NON_FIPS_ALLOW 0x1
716 #define EC_FLAG_FIPS_CHECKED 0x2
718 /** Creates a new EC_KEY object.
719 * \return EC_KEY object or NULL if an error occurred.
721 EC_KEY *EC_KEY_new(void);
723 int EC_KEY_get_flags(const EC_KEY *key);
725 void EC_KEY_set_flags(EC_KEY *key, int flags);
727 void EC_KEY_clear_flags(EC_KEY *key, int flags);
729 /** Creates a new EC_KEY object using a named curve as underlying
730 * EC_GROUP object.
731 * \param nid NID of the named curve.
732 * \return EC_KEY object or NULL if an error occurred.
734 EC_KEY *EC_KEY_new_by_curve_name(int nid);
736 /** Frees a EC_KEY object.
737 * \param key EC_KEY object to be freed.
739 void EC_KEY_free(EC_KEY *key);
741 /** Copies a EC_KEY object.
742 * \param dst destination EC_KEY object
743 * \param src src EC_KEY object
744 * \return dst or NULL if an error occurred.
746 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src);
748 /** Creates a new EC_KEY object and copies the content from src to it.
749 * \param src the source EC_KEY object
750 * \return newly created EC_KEY object or NULL if an error occurred.
752 EC_KEY *EC_KEY_dup(const EC_KEY *src);
754 /** Increases the internal reference count of a EC_KEY object.
755 * \param key EC_KEY object
756 * \return 1 on success and 0 if an error occurred.
758 int EC_KEY_up_ref(EC_KEY *key);
760 /** Returns the EC_GROUP object of a EC_KEY object
761 * \param key EC_KEY object
762 * \return the EC_GROUP object (possibly NULL).
764 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);
766 /** Sets the EC_GROUP of a EC_KEY object.
767 * \param key EC_KEY object
768 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY
769 * object will use an own copy of the EC_GROUP).
770 * \return 1 on success and 0 if an error occurred.
772 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);
774 /** Returns the private key of a EC_KEY object.
775 * \param key EC_KEY object
776 * \return a BIGNUM with the private key (possibly NULL).
778 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);
780 /** Sets the private key of a EC_KEY object.
781 * \param key EC_KEY object
782 * \param prv BIGNUM with the private key (note: the EC_KEY object
783 * will use an own copy of the BIGNUM).
784 * \return 1 on success and 0 if an error occurred.
786 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);
788 /** Returns the public key of a EC_KEY object.
789 * \param key the EC_KEY object
790 * \return a EC_POINT object with the public key (possibly NULL)
792 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);
794 /** Sets the public key of a EC_KEY object.
795 * \param key EC_KEY object
796 * \param pub EC_POINT object with the public key (note: the EC_KEY object
797 * will use an own copy of the EC_POINT object).
798 * \return 1 on success and 0 if an error occurred.
800 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);
802 unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
803 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);
804 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key);
805 void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform);
806 /* functions to set/get method specific data */
807 void *EC_KEY_get_key_method_data(EC_KEY *key,
808 void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
809 /** Sets the key method data of an EC_KEY object, if none has yet been set.
810 * \param key EC_KEY object
811 * \param data opaque data to install.
812 * \param dup_func a function that duplicates |data|.
813 * \param free_func a function that frees |data|.
814 * \param clear_free_func a function that wipes and frees |data|.
815 * \return the previously set data pointer, or NULL if |data| was inserted.
817 void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data,
818 void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
819 /* wrapper functions for the underlying EC_GROUP object */
820 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag);
822 /** Creates a table of pre-computed multiples of the generator to
823 * accelerate further EC_KEY operations.
824 * \param key EC_KEY object
825 * \param ctx BN_CTX object (optional)
826 * \return 1 on success and 0 if an error occurred.
828 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);
830 /** Creates a new ec private (and optional a new public) key.
831 * \param key EC_KEY object
832 * \return 1 on success and 0 if an error occurred.
834 int EC_KEY_generate_key(EC_KEY *key);
836 /** Verifies that a private and/or public key is valid.
837 * \param key the EC_KEY object
838 * \return 1 on success and 0 otherwise.
840 int EC_KEY_check_key(const EC_KEY *key);
842 /** Sets a public key from affine coordindates performing
843 * neccessary NIST PKV tests.
844 * \param key the EC_KEY object
845 * \param x public key x coordinate
846 * \param y public key y coordinate
847 * \return 1 on success and 0 otherwise.
849 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x, BIGNUM *y);
852 /********************************************************************/
853 /* de- and encoding functions for SEC1 ECPrivateKey */
854 /********************************************************************/
856 /** Decodes a private key from a memory buffer.
857 * \param key a pointer to a EC_KEY object which should be used (or NULL)
858 * \param in pointer to memory with the DER encoded private key
859 * \param len length of the DER encoded private key
860 * \return the decoded private key or NULL if an error occurred.
862 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len);
864 /** Encodes a private key object and stores the result in a buffer.
865 * \param key the EC_KEY object to encode
866 * \param out the buffer for the result (if NULL the function returns number
867 * of bytes needed).
868 * \return 1 on success and 0 if an error occurred.
870 int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out);
873 /********************************************************************/
874 /* de- and encoding functions for EC parameters */
875 /********************************************************************/
877 /** Decodes ec parameter from a memory buffer.
878 * \param key a pointer to a EC_KEY object which should be used (or NULL)
879 * \param in pointer to memory with the DER encoded ec parameters
880 * \param len length of the DER encoded ec parameters
881 * \return a EC_KEY object with the decoded parameters or NULL if an error
882 * occurred.
884 EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len);
886 /** Encodes ec parameter and stores the result in a buffer.
887 * \param key the EC_KEY object with ec paramters to encode
888 * \param out the buffer for the result (if NULL the function returns number
889 * of bytes needed).
890 * \return 1 on success and 0 if an error occurred.
892 int i2d_ECParameters(EC_KEY *key, unsigned char **out);
895 /********************************************************************/
896 /* de- and encoding functions for EC public key */
897 /* (octet string, not DER -- hence 'o2i' and 'i2o') */
898 /********************************************************************/
900 /** Decodes a ec public key from a octet string.
901 * \param key a pointer to a EC_KEY object which should be used
902 * \param in memory buffer with the encoded public key
903 * \param len length of the encoded public key
904 * \return EC_KEY object with decoded public key or NULL if an error
905 * occurred.
907 EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len);
909 /** Encodes a ec public key in an octet string.
910 * \param key the EC_KEY object with the public key
911 * \param out the buffer for the result (if NULL the function returns number
912 * of bytes needed).
913 * \return 1 on success and 0 if an error occurred
915 int i2o_ECPublicKey(EC_KEY *key, unsigned char **out);
917 #ifndef OPENSSL_NO_BIO
918 /** Prints out the ec parameters on human readable form.
919 * \param bp BIO object to which the information is printed
920 * \param key EC_KEY object
921 * \return 1 on success and 0 if an error occurred
923 int ECParameters_print(BIO *bp, const EC_KEY *key);
925 /** Prints out the contents of a EC_KEY object
926 * \param bp BIO object to which the information is printed
927 * \param key EC_KEY object
928 * \param off line offset
929 * \return 1 on success and 0 if an error occurred
931 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off);
933 #endif
934 #ifndef OPENSSL_NO_FP_API
935 /** Prints out the ec parameters on human readable form.
936 * \param fp file descriptor to which the information is printed
937 * \param key EC_KEY object
938 * \return 1 on success and 0 if an error occurred
940 int ECParameters_print_fp(FILE *fp, const EC_KEY *key);
942 /** Prints out the contents of a EC_KEY object
943 * \param fp file descriptor to which the information is printed
944 * \param key EC_KEY object
945 * \param off line offset
946 * \return 1 on success and 0 if an error occurred
948 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
950 #endif
952 #define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
954 #ifndef __cplusplus
955 #if defined(__SUNPRO_C)
956 # if __SUNPRO_C >= 0x520
957 # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
958 # endif
959 # endif
960 #endif
962 #define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \
963 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, EVP_PKEY_OP_PARAMGEN, \
964 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL)
967 #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1)
969 /* BEGIN ERROR CODES */
970 /* The following lines are auto generated by the script mkerr.pl. Any changes
971 * made after this point may be overwritten when the script is next run.
973 void ERR_load_EC_strings(void);
975 /* Error codes for the EC functions. */
977 /* Function codes. */
978 #define EC_F_BN_TO_FELEM 224
979 #define EC_F_COMPUTE_WNAF 143
980 #define EC_F_D2I_ECPARAMETERS 144
981 #define EC_F_D2I_ECPKPARAMETERS 145
982 #define EC_F_D2I_ECPRIVATEKEY 146
983 #define EC_F_DO_EC_KEY_PRINT 221
984 #define EC_F_ECKEY_PARAM2TYPE 223
985 #define EC_F_ECKEY_PARAM_DECODE 212
986 #define EC_F_ECKEY_PRIV_DECODE 213
987 #define EC_F_ECKEY_PRIV_ENCODE 214
988 #define EC_F_ECKEY_PUB_DECODE 215
989 #define EC_F_ECKEY_PUB_ENCODE 216
990 #define EC_F_ECKEY_TYPE2PARAM 220
991 #define EC_F_ECPARAMETERS_PRINT 147
992 #define EC_F_ECPARAMETERS_PRINT_FP 148
993 #define EC_F_ECPKPARAMETERS_PRINT 149
994 #define EC_F_ECPKPARAMETERS_PRINT_FP 150
995 #define EC_F_ECP_NIST_MOD_192 203
996 #define EC_F_ECP_NIST_MOD_224 204
997 #define EC_F_ECP_NIST_MOD_256 205
998 #define EC_F_ECP_NIST_MOD_521 206
999 #define EC_F_EC_ASN1_GROUP2CURVE 153
1000 #define EC_F_EC_ASN1_GROUP2FIELDID 154
1001 #define EC_F_EC_ASN1_GROUP2PARAMETERS 155
1002 #define EC_F_EC_ASN1_GROUP2PKPARAMETERS 156
1003 #define EC_F_EC_ASN1_PARAMETERS2GROUP 157
1004 #define EC_F_EC_ASN1_PKPARAMETERS2GROUP 158
1005 #define EC_F_EC_EX_DATA_SET_DATA 211
1006 #define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY 208
1007 #define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 159
1008 #define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE 195
1009 #define EC_F_EC_GF2M_SIMPLE_OCT2POINT 160
1010 #define EC_F_EC_GF2M_SIMPLE_POINT2OCT 161
1011 #define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
1012 #define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
1013 #define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES 164
1014 #define EC_F_EC_GFP_MONT_FIELD_DECODE 133
1015 #define EC_F_EC_GFP_MONT_FIELD_ENCODE 134
1016 #define EC_F_EC_GFP_MONT_FIELD_MUL 131
1017 #define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE 209
1018 #define EC_F_EC_GFP_MONT_FIELD_SQR 132
1019 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE 189
1020 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP 135
1021 #define EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE 225
1022 #define EC_F_EC_GFP_NISTP224_POINTS_MUL 228
1023 #define EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES 226
1024 #define EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE 230
1025 #define EC_F_EC_GFP_NISTP256_POINTS_MUL 231
1026 #define EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES 232
1027 #define EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE 233
1028 #define EC_F_EC_GFP_NISTP521_POINTS_MUL 234
1029 #define EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES 235
1030 #define EC_F_EC_GFP_NIST_FIELD_MUL 200
1031 #define EC_F_EC_GFP_NIST_FIELD_SQR 201
1032 #define EC_F_EC_GFP_NIST_GROUP_SET_CURVE 202
1033 #define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 165
1034 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE 166
1035 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100
1036 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101
1037 #define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102
1038 #define EC_F_EC_GFP_SIMPLE_OCT2POINT 103
1039 #define EC_F_EC_GFP_SIMPLE_POINT2OCT 104
1040 #define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137
1041 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES 167
1042 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
1043 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES 168
1044 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
1045 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES 169
1046 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
1047 #define EC_F_EC_GROUP_CHECK 170
1048 #define EC_F_EC_GROUP_CHECK_DISCRIMINANT 171
1049 #define EC_F_EC_GROUP_COPY 106
1050 #define EC_F_EC_GROUP_GET0_GENERATOR 139
1051 #define EC_F_EC_GROUP_GET_COFACTOR 140
1052 #define EC_F_EC_GROUP_GET_CURVE_GF2M 172
1053 #define EC_F_EC_GROUP_GET_CURVE_GFP 130
1054 #define EC_F_EC_GROUP_GET_DEGREE 173
1055 #define EC_F_EC_GROUP_GET_ORDER 141
1056 #define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193
1057 #define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194
1058 #define EC_F_EC_GROUP_NEW 108
1059 #define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174
1060 #define EC_F_EC_GROUP_NEW_FROM_DATA 175
1061 #define EC_F_EC_GROUP_PRECOMPUTE_MULT 142
1062 #define EC_F_EC_GROUP_SET_CURVE_GF2M 176
1063 #define EC_F_EC_GROUP_SET_CURVE_GFP 109
1064 #define EC_F_EC_GROUP_SET_EXTRA_DATA 110
1065 #define EC_F_EC_GROUP_SET_GENERATOR 111
1066 #define EC_F_EC_KEY_CHECK_KEY 177
1067 #define EC_F_EC_KEY_COPY 178
1068 #define EC_F_EC_KEY_GENERATE_KEY 179
1069 #define EC_F_EC_KEY_NEW 182
1070 #define EC_F_EC_KEY_PRINT 180
1071 #define EC_F_EC_KEY_PRINT_FP 181
1072 #define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES 229
1073 #define EC_F_EC_POINTS_MAKE_AFFINE 136
1074 #define EC_F_EC_POINT_ADD 112
1075 #define EC_F_EC_POINT_CMP 113
1076 #define EC_F_EC_POINT_COPY 114
1077 #define EC_F_EC_POINT_DBL 115
1078 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 183
1079 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116
1080 #define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117
1081 #define EC_F_EC_POINT_INVERT 210
1082 #define EC_F_EC_POINT_IS_AT_INFINITY 118
1083 #define EC_F_EC_POINT_IS_ON_CURVE 119
1084 #define EC_F_EC_POINT_MAKE_AFFINE 120
1085 #define EC_F_EC_POINT_MUL 184
1086 #define EC_F_EC_POINT_NEW 121
1087 #define EC_F_EC_POINT_OCT2POINT 122
1088 #define EC_F_EC_POINT_POINT2OCT 123
1089 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 185
1090 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124
1091 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 186
1092 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125
1093 #define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126
1094 #define EC_F_EC_POINT_SET_TO_INFINITY 127
1095 #define EC_F_EC_PRE_COMP_DUP 207
1096 #define EC_F_EC_PRE_COMP_NEW 196
1097 #define EC_F_EC_WNAF_MUL 187
1098 #define EC_F_EC_WNAF_PRECOMPUTE_MULT 188
1099 #define EC_F_I2D_ECPARAMETERS 190
1100 #define EC_F_I2D_ECPKPARAMETERS 191
1101 #define EC_F_I2D_ECPRIVATEKEY 192
1102 #define EC_F_I2O_ECPUBLICKEY 151
1103 #define EC_F_NISTP224_PRE_COMP_NEW 227
1104 #define EC_F_NISTP256_PRE_COMP_NEW 236
1105 #define EC_F_NISTP521_PRE_COMP_NEW 237
1106 #define EC_F_O2I_ECPUBLICKEY 152
1107 #define EC_F_OLD_EC_PRIV_DECODE 222
1108 #define EC_F_PKEY_EC_CTRL 197
1109 #define EC_F_PKEY_EC_CTRL_STR 198
1110 #define EC_F_PKEY_EC_DERIVE 217
1111 #define EC_F_PKEY_EC_KEYGEN 199
1112 #define EC_F_PKEY_EC_PARAMGEN 219
1113 #define EC_F_PKEY_EC_SIGN 218
1115 /* Reason codes. */
1116 #define EC_R_ASN1_ERROR 115
1117 #define EC_R_ASN1_UNKNOWN_FIELD 116
1118 #define EC_R_BIGNUM_OUT_OF_RANGE 144
1119 #define EC_R_BUFFER_TOO_SMALL 100
1120 #define EC_R_COORDINATES_OUT_OF_RANGE 146
1121 #define EC_R_D2I_ECPKPARAMETERS_FAILURE 117
1122 #define EC_R_DECODE_ERROR 142
1123 #define EC_R_DISCRIMINANT_IS_ZERO 118
1124 #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 119
1125 #define EC_R_FIELD_TOO_LARGE 143
1126 #define EC_R_GF2M_NOT_SUPPORTED 147
1127 #define EC_R_GROUP2PKPARAMETERS_FAILURE 120
1128 #define EC_R_I2D_ECPKPARAMETERS_FAILURE 121
1129 #define EC_R_INCOMPATIBLE_OBJECTS 101
1130 #define EC_R_INVALID_ARGUMENT 112
1131 #define EC_R_INVALID_COMPRESSED_POINT 110
1132 #define EC_R_INVALID_COMPRESSION_BIT 109
1133 #define EC_R_INVALID_CURVE 141
1134 #define EC_R_INVALID_DIGEST_TYPE 138
1135 #define EC_R_INVALID_ENCODING 102
1136 #define EC_R_INVALID_FIELD 103
1137 #define EC_R_INVALID_FORM 104
1138 #define EC_R_INVALID_GROUP_ORDER 122
1139 #define EC_R_INVALID_PENTANOMIAL_BASIS 132
1140 #define EC_R_INVALID_PRIVATE_KEY 123
1141 #define EC_R_INVALID_TRINOMIAL_BASIS 137
1142 #define EC_R_KEYS_NOT_SET 140
1143 #define EC_R_MISSING_PARAMETERS 124
1144 #define EC_R_MISSING_PRIVATE_KEY 125
1145 #define EC_R_NOT_A_NIST_PRIME 135
1146 #define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136
1147 #define EC_R_NOT_IMPLEMENTED 126
1148 #define EC_R_NOT_INITIALIZED 111
1149 #define EC_R_NO_FIELD_MOD 133
1150 #define EC_R_NO_PARAMETERS_SET 139
1151 #define EC_R_PASSED_NULL_PARAMETER 134
1152 #define EC_R_PKPARAMETERS2GROUP_FAILURE 127
1153 #define EC_R_POINT_AT_INFINITY 106
1154 #define EC_R_POINT_IS_NOT_ON_CURVE 107
1155 #define EC_R_SLOT_FULL 108
1156 #define EC_R_UNDEFINED_GENERATOR 113
1157 #define EC_R_UNDEFINED_ORDER 128
1158 #define EC_R_UNKNOWN_GROUP 129
1159 #define EC_R_UNKNOWN_ORDER 114
1160 #define EC_R_UNSUPPORTED_FIELD 131
1161 #define EC_R_WRONG_CURVE_PARAMETERS 145
1162 #define EC_R_WRONG_ORDER 130
1164 #ifdef __cplusplus
1166 #endif
1167 #endif