3 * Originally written by Bodo Moeller for the OpenSSL project.
6 * \file crypto/ec/ec.h Include file for the OpenSSL EC functions
7 * \author Originally written by Bodo Moeller for the OpenSSL project
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
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
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
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.
79 #include <openssl/opensslconf.h>
82 #error EC is disabled.
85 #include <openssl/asn1.h>
86 #include <openssl/symhacks.h>
87 #ifndef OPENSSL_NO_DEPRECATED
88 #include <openssl/bn.h>
93 #elif defined(__SUNPRO_C)
94 # if __SUNPRO_C >= 0x520
95 # pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
100 #ifndef OPENSSL_ECC_MAX_FIELD_BITS
101 # define OPENSSL_ECC_MAX_FIELD_BITS 661
104 /** Enum for the point conversion form as defined in X9.62 (ECDSA)
105 * for the encoding of a elliptic curve point (x,y) */
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
124 -- curve coefficients
125 -- optional generator with associated information (order, cofactor)
126 -- optional extra data (precomputed table for fast computation of multiples of generator)
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
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);
155 /********************************************************************/
156 /* EC_METHOD for curves over GF(2^m) */
157 /********************************************************************/
159 /** Returns the basic GF2m ec method
160 * \return EC_METHOD object
162 const EC_METHOD *EC_GF2m_simple_method(void);
165 /********************************************************************/
166 /* EC_GROUP functions */
167 /********************************************************************/
169 /** Creates a new EC_GROUP object
170 * \param meth EC_METHOD to use
171 * \return newly created EC_GROUP object or NULL in case of an error.
173 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth);
175 /** Frees a EC_GROUP object
176 * \param group EC_GROUP object to be freed.
178 void EC_GROUP_free(EC_GROUP *group);
180 /** Clears and frees a EC_GROUP object
181 * \param group EC_GROUP object to be cleared and freed.
183 void EC_GROUP_clear_free(EC_GROUP *group);
185 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD.
186 * \param dst destination EC_GROUP object
187 * \param src source EC_GROUP object
188 * \return 1 on success and 0 if an error occurred.
190 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src);
192 /** Creates a new EC_GROUP object and copies the copies the content
193 * form src to the newly created EC_KEY object
194 * \param src source EC_GROUP object
195 * \return newly created EC_GROUP object or NULL in case of an error.
197 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);
199 /** Returns the EC_METHOD of the EC_GROUP object.
200 * \param group EC_GROUP object
201 * \return EC_METHOD used in this EC_GROUP object.
203 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);
205 /** Returns the field type of the EC_METHOD.
206 * \param meth EC_METHOD object
207 * \return NID of the underlying field type OID.
209 int EC_METHOD_get_field_type(const EC_METHOD *meth);
211 /** Sets the generator and it's order/cofactor of a EC_GROUP object.
212 * \param group EC_GROUP object
213 * \param generator EC_POINT object with the generator.
214 * \param order the order of the group generated by the generator.
215 * \param cofactor the index of the sub-group generated by the generator
216 * in the group of all points on the elliptic curve.
217 * \return 1 on success and 0 if an error occured
219 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor);
221 /** Returns the generator of a EC_GROUP object.
222 * \param group EC_GROUP object
223 * \return the currently used generator (possibly NULL).
225 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
227 /** Gets the order of a EC_GROUP
228 * \param group EC_GROUP object
229 * \param order BIGNUM to which the order is copied
230 * \param ctx BN_CTX object (optional)
231 * \return 1 on success and 0 if an error occured
233 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
235 /** Gets the cofactor of a EC_GROUP
236 * \param group EC_GROUP object
237 * \param cofactor BIGNUM to which the cofactor is copied
238 * \param ctx BN_CTX object (optional)
239 * \return 1 on success and 0 if an error occured
241 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx);
243 /** Sets the name of a EC_GROUP object
244 * \param group EC_GROUP object
245 * \param nid NID of the curve name OID
247 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
249 /** Returns the curve name of a EC_GROUP object
250 * \param group EC_GROUP object
251 * \return NID of the curve name OID or 0 if not set.
253 int EC_GROUP_get_curve_name(const EC_GROUP *group);
255 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
256 int EC_GROUP_get_asn1_flag(const EC_GROUP *group);
258 void EC_GROUP_set_point_conversion_form(EC_GROUP *, point_conversion_form_t);
259 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
261 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *);
262 size_t EC_GROUP_get_seed_len(const EC_GROUP *);
263 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
265 /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b
266 * \param group EC_GROUP object
267 * \param p BIGNUM with the prime number
268 * \param a BIGNUM with parameter a of the equation
269 * \param b BIGNUM with parameter b of the equation
270 * \param ctx BN_CTX object (optional)
271 * \return 1 on success and 0 if an error occured
273 int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
275 /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b
276 * \param group EC_GROUP object
277 * \param p BIGNUM for the prime number
278 * \param a BIGNUM for parameter a of the equation
279 * \param b BIGNUM for parameter b of the equation
280 * \param ctx BN_CTX object (optional)
281 * \return 1 on success and 0 if an error occured
283 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
285 /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
286 * \param group EC_GROUP object
287 * \param p BIGNUM with the polynomial defining the underlying field
288 * \param a BIGNUM with parameter a of the equation
289 * \param b BIGNUM with parameter b of the equation
290 * \param ctx BN_CTX object (optional)
291 * \return 1 on success and 0 if an error occured
293 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
295 /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
296 * \param group EC_GROUP object
297 * \param p BIGNUM for the polynomial defining the underlying field
298 * \param a BIGNUM for parameter a of the equation
299 * \param b BIGNUM for parameter b of the equation
300 * \param ctx BN_CTX object (optional)
301 * \return 1 on success and 0 if an error occured
303 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
305 /** Returns the number of bits needed to represent a field element
306 * \param group EC_GROUP object
307 * \return number of bits needed to represent a field element
309 int EC_GROUP_get_degree(const EC_GROUP *group);
311 /** Checks whether the parameter in the EC_GROUP define a valid ec group
312 * \param group EC_GROUP object
313 * \param ctx BN_CTX object (optional)
314 * \return 1 if group is a valid ec group and 0 otherwise
316 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
318 /** Checks whether the discriminant of the elliptic curve is zero or not
319 * \param group EC_GROUP object
320 * \param ctx BN_CTX object (optional)
321 * \return 1 if the discriminant is not zero and 0 otherwise
323 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);
325 /** Compares two EC_GROUP objects
326 * \param a first EC_GROUP object
327 * \param b second EC_GROUP object
328 * \param ctx BN_CTX object (optional)
329 * \return 0 if both groups are equal and 1 otherwise
331 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);
333 /* EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*()
334 * after choosing an appropriate EC_METHOD */
336 /** Creates a new EC_GROUP object with the specified parameters defined
337 * over GFp (defined by the equation y^2 = x^3 + a*x + b)
338 * \param p BIGNUM with the prime number
339 * \param a BIGNUM with the parameter a of the equation
340 * \param b BIGNUM with the parameter b of the equation
341 * \param ctx BN_CTX object (optional)
342 * \return newly created EC_GROUP object with the specified parameters
344 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
346 /** Creates a new EC_GROUP object with the specified parameters defined
347 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
348 * \param p BIGNUM with the polynomial defining the underlying field
349 * \param a BIGNUM with the parameter a of the equation
350 * \param b BIGNUM with the parameter b of the equation
351 * \param ctx BN_CTX object (optional)
352 * \return newly created EC_GROUP object with the specified parameters
354 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
356 /** Creates a EC_GROUP object with a curve specified by a NID
357 * \param nid NID of the OID of the curve name
358 * \return newly created EC_GROUP object with specified curve or NULL
359 * if an error occurred
361 EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
364 /********************************************************************/
365 /* handling of internal curves */
366 /********************************************************************/
373 /* EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number
374 * of all available curves or zero if a error occurred.
375 * In case r ist not zero nitems EC_builtin_curve structures
376 * are filled with the data of the first nitems internal groups */
377 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
380 /********************************************************************/
381 /* EC_POINT functions */
382 /********************************************************************/
384 /** Creates a new EC_POINT object for the specified EC_GROUP
385 * \param group EC_GROUP the underlying EC_GROUP object
386 * \return newly created EC_POINT object or NULL if an error occurred
388 EC_POINT *EC_POINT_new(const EC_GROUP *group);
390 /** Frees a EC_POINT object
391 * \param point EC_POINT object to be freed
393 void EC_POINT_free(EC_POINT *point);
395 /** Clears and frees a EC_POINT object
396 * \param point EC_POINT object to be cleared and freed
398 void EC_POINT_clear_free(EC_POINT *point);
400 /** Copies EC_POINT object
401 * \param dst destination EC_POINT object
402 * \param src source EC_POINT object
403 * \return 1 on success and 0 if an error occured
405 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);
407 /** Creates a new EC_POINT object and copies the content of the supplied
409 * \param src source EC_POINT object
410 * \param group underlying the EC_GROUP object
411 * \return newly created EC_POINT object or NULL if an error occurred
413 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);
415 /** Returns the EC_METHOD used in EC_POINT object
416 * \param point EC_POINT object
417 * \return the EC_METHOD used
419 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);
421 /** Sets a point to infinity (neutral element)
422 * \param group underlying EC_GROUP object
423 * \param point EC_POINT to set to infinity
424 * \return 1 on success and 0 if an error occured
426 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);
428 /** Sets the jacobian projective coordinates of a EC_POINT over GFp
429 * \param group underlying EC_GROUP object
430 * \param p EC_POINT object
431 * \param x BIGNUM with the x-coordinate
432 * \param y BIGNUM with the y-coordinate
433 * \param z BIGNUM with the z-coordinate
434 * \param ctx BN_CTX object (optional)
435 * \return 1 on success and 0 if an error occured
437 int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
438 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx);
440 /** Gets the jacobian projective coordinates of a EC_POINT over GFp
441 * \param group underlying EC_GROUP object
442 * \param p EC_POINT object
443 * \param x BIGNUM for the x-coordinate
444 * \param y BIGNUM for the y-coordinate
445 * \param z BIGNUM for the z-coordinate
446 * \param ctx BN_CTX object (optional)
447 * \return 1 on success and 0 if an error occured
449 int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group,
450 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx);
452 /** Sets the affine coordinates of a EC_POINT over GFp
453 * \param group underlying EC_GROUP object
454 * \param p EC_POINT object
455 * \param x BIGNUM with the x-coordinate
456 * \param y BIGNUM with the y-coordinate
457 * \param ctx BN_CTX object (optional)
458 * \return 1 on success and 0 if an error occured
460 int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
461 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
463 /** Gets the affine coordinates of a EC_POINT over GFp
464 * \param group underlying EC_GROUP object
465 * \param p EC_POINT object
466 * \param x BIGNUM for the x-coordinate
467 * \param y BIGNUM for the y-coordinate
468 * \param ctx BN_CTX object (optional)
469 * \return 1 on success and 0 if an error occured
471 int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group,
472 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
474 /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp
475 * \param group underlying EC_GROUP object
476 * \param p EC_POINT object
477 * \param x BIGNUM with x-coordinate
478 * \param y_bit integer with the y-Bit (either 0 or 1)
479 * \param ctx BN_CTX object (optional)
480 * \return 1 on success and 0 if an error occured
482 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
483 const BIGNUM *x, int y_bit, BN_CTX *ctx);
485 /** Sets the affine coordinates of a EC_POINT over GF2m
486 * \param group underlying EC_GROUP object
487 * \param p EC_POINT object
488 * \param x BIGNUM with the x-coordinate
489 * \param y BIGNUM with the y-coordinate
490 * \param ctx BN_CTX object (optional)
491 * \return 1 on success and 0 if an error occured
493 int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
494 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
496 /** Gets the affine coordinates of a EC_POINT over GF2m
497 * \param group underlying EC_GROUP object
498 * \param p EC_POINT object
499 * \param x BIGNUM for the x-coordinate
500 * \param y BIGNUM for the y-coordinate
501 * \param ctx BN_CTX object (optional)
502 * \return 1 on success and 0 if an error occured
504 int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group,
505 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
507 /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m
508 * \param group underlying EC_GROUP object
509 * \param p EC_POINT object
510 * \param x BIGNUM with x-coordinate
511 * \param y_bit integer with the y-Bit (either 0 or 1)
512 * \param ctx BN_CTX object (optional)
513 * \return 1 on success and 0 if an error occured
515 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
516 const BIGNUM *x, int y_bit, BN_CTX *ctx);
518 /** Encodes a EC_POINT object to a octet string
519 * \param group underlying EC_GROUP object
520 * \param p EC_POINT object
521 * \param form point conversion form
522 * \param buf memory buffer for the result. If NULL the function returns
523 * required buffer size.
524 * \param len length of the memory buffer
525 * \param ctx BN_CTX object (optional)
526 * \return the length of the encoded octet string or 0 if an error occurred
528 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
529 point_conversion_form_t form,
530 unsigned char *buf, size_t len, BN_CTX *ctx);
532 /** Decodes a EC_POINT from a octet string
533 * \param group underlying EC_GROUP object
534 * \param p EC_POINT object
535 * \param buf memory buffer with the encoded ec point
536 * \param len length of the encoded ec point
537 * \param ctx BN_CTX object (optional)
538 * \return 1 on success and 0 if an error occured
540 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
541 const unsigned char *buf, size_t len, BN_CTX *ctx);
543 /* other interfaces to point2oct/oct2point: */
544 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
545 point_conversion_form_t form, BIGNUM *, BN_CTX *);
546 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
547 EC_POINT *, BN_CTX *);
548 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
549 point_conversion_form_t form, BN_CTX *);
550 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
551 EC_POINT *, BN_CTX *);
554 /********************************************************************/
555 /* functions for doing EC_POINT arithmetic */
556 /********************************************************************/
558 /** Computes the sum of two EC_POINT
559 * \param group underlying EC_GROUP object
560 * \param r EC_POINT object for the result (r = a + b)
561 * \param a EC_POINT object with the first summand
562 * \param b EC_POINT object with the second summand
563 * \param ctx BN_CTX object (optional)
564 * \return 1 on success and 0 if an error occured
566 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx);
568 /** Computes the double of a EC_POINT
569 * \param group underlying EC_GROUP object
570 * \param r EC_POINT object for the result (r = 2 * a)
571 * \param a EC_POINT object
572 * \param ctx BN_CTX object (optional)
573 * \return 1 on success and 0 if an error occured
575 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx);
577 /** Computes the inverse of a EC_POINT
578 * \param group underlying EC_GROUP object
579 * \param a EC_POINT object to be inverted (it's used for the result as well)
580 * \param ctx BN_CTX object (optional)
581 * \return 1 on success and 0 if an error occured
583 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);
585 /** Checks whether the point is the neutral element of the group
586 * \param group the underlying EC_GROUP object
587 * \param p EC_POINT object
588 * \return 1 if the point is the neutral element and 0 otherwise
590 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);
592 /** Checks whether the point is on the curve
593 * \param group underlying EC_GROUP object
594 * \param point EC_POINT object to check
595 * \param ctx BN_CTX object (optional)
596 * \return 1 if point if on the curve and 0 otherwise
598 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx);
600 /** Compares two EC_POINTs
601 * \param group underlying EC_GROUP object
602 * \param a first EC_POINT object
603 * \param b second EC_POINT object
604 * \param ctx BN_CTX object (optional)
605 * \return 0 if both points are equal and a value != 0 otherwise
607 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx);
609 int EC_POINT_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *);
610 int EC_POINTs_make_affine(const EC_GROUP *, size_t num, EC_POINT *[], BN_CTX *);
612 /** Computes r = generator * n sum_{i=0}^num p[i] * m[i]
613 * \param group underlying EC_GROUP object
614 * \param r EC_POINT object for the result
615 * \param n BIGNUM with the multiplier for the group generator (optional)
616 * \param num number futher summands
617 * \param p array of size num of EC_POINT objects
618 * \param m array of size num of BIGNUM objects
619 * \param ctx BN_CTX object (optional)
620 * \return 1 on success and 0 if an error occured
622 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);
624 /** Computes r = generator * n + q * m
625 * \param group underlying EC_GROUP object
626 * \param r EC_POINT object for the result
627 * \param n BIGNUM with the multiplier for the group generator (optional)
628 * \param q EC_POINT object with the first factor of the second summand
629 * \param m BIGNUM with the second factor of the second summand
630 * \param ctx BN_CTX object (optional)
631 * \return 1 on success and 0 if an error occured
633 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);
635 /** Stores multiples of generator for faster point multiplication
636 * \param group EC_GROUP object
637 * \param ctx BN_CTX object (optional)
638 * \return 1 on success and 0 if an error occured
640 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
642 /** Reports whether a precomputation has been done
643 * \param group EC_GROUP object
644 * \return 1 if a pre-computation has been done and 0 otherwise
646 int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
649 /********************************************************************/
651 /********************************************************************/
653 /* EC_GROUP_get_basis_type() returns the NID of the basis type
654 * used to represent the field elements */
655 int EC_GROUP_get_basis_type(const EC_GROUP *);
656 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
657 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
658 unsigned int *k2, unsigned int *k3);
660 #define OPENSSL_EC_NAMED_CURVE 0x001
662 typedef struct ecpk_parameters_st ECPKPARAMETERS;
664 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
665 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
667 #define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
668 #define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
669 #define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
670 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
671 #define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
672 (unsigned char *)(x))
674 #ifndef OPENSSL_NO_BIO
675 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
677 #ifndef OPENSSL_NO_FP_API
678 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
682 /********************************************************************/
683 /* EC_KEY functions */
684 /********************************************************************/
686 typedef struct ec_key_st EC_KEY;
688 /* some values for the encoding_flag */
689 #define EC_PKEY_NO_PARAMETERS 0x001
690 #define EC_PKEY_NO_PUBKEY 0x002
692 /** Creates a new EC_KEY object.
693 * \return EC_KEY object or NULL if an error occurred.
695 EC_KEY *EC_KEY_new(void);
697 /** Creates a new EC_KEY object using a named curve as underlying
699 * \param nid NID of the named curve.
700 * \return EC_KEY object or NULL if an error occurred.
702 EC_KEY *EC_KEY_new_by_curve_name(int nid);
704 /** Frees a EC_KEY object.
705 * \param key EC_KEY object to be freed.
707 void EC_KEY_free(EC_KEY *key);
709 /** Copies a EC_KEY object.
710 * \param dst destination EC_KEY object
711 * \param src src EC_KEY object
712 * \return dst or NULL if an error occurred.
714 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src);
716 /** Creates a new EC_KEY object and copies the content from src to it.
717 * \param src the source EC_KEY object
718 * \return newly created EC_KEY object or NULL if an error occurred.
720 EC_KEY *EC_KEY_dup(const EC_KEY *src);
722 /** Increases the internal reference count of a EC_KEY object.
723 * \param key EC_KEY object
724 * \return 1 on success and 0 if an error occurred.
726 int EC_KEY_up_ref(EC_KEY *key);
728 /** Returns the EC_GROUP object of a EC_KEY object
729 * \param key EC_KEY object
730 * \return the EC_GROUP object (possibly NULL).
732 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);
734 /** Sets the EC_GROUP of a EC_KEY object.
735 * \param key EC_KEY object
736 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY
737 * object will use an own copy of the EC_GROUP).
738 * \return 1 on success and 0 if an error occurred.
740 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);
742 /** Returns the private key of a EC_KEY object.
743 * \param key EC_KEY object
744 * \return a BIGNUM with the private key (possibly NULL).
746 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);
748 /** Sets the private key of a EC_KEY object.
749 * \param key EC_KEY object
750 * \param prv BIGNUM with the private key (note: the EC_KEY object
751 * will use an own copy of the BIGNUM).
752 * \return 1 on success and 0 if an error occurred.
754 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);
756 /** Returns the public key of a EC_KEY object.
757 * \param key the EC_KEY object
758 * \return a EC_POINT object with the public key (possibly NULL)
760 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);
762 /** Sets the public key of a EC_KEY object.
763 * \param key EC_KEY object
764 * \param pub EC_POINT object with the public key (note: the EC_KEY object
765 * will use an own copy of the EC_POINT object).
766 * \return 1 on success and 0 if an error occurred.
768 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);
770 unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
771 void EC_KEY_set_enc_flags(EC_KEY *, unsigned int);
772 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *);
773 void EC_KEY_set_conv_form(EC_KEY *, point_conversion_form_t);
774 /* functions to set/get method specific data */
775 void *EC_KEY_get_key_method_data(EC_KEY *,
776 void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
777 void EC_KEY_insert_key_method_data(EC_KEY *, void *data,
778 void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
779 /* wrapper functions for the underlying EC_GROUP object */
780 void EC_KEY_set_asn1_flag(EC_KEY *, int);
782 /** Creates a table of pre-computed multiples of the generator to
783 * accelerate further EC_KEY operations.
784 * \param key EC_KEY object
785 * \param ctx BN_CTX object (optional)
786 * \return 1 on success and 0 if an error occurred.
788 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);
790 /** Creates a new ec private (and optional a new public) key.
791 * \param key EC_KEY object
792 * \return 1 on success and 0 if an error occurred.
794 int EC_KEY_generate_key(EC_KEY *key);
796 /** Verifies that a private and/or public key is valid.
797 * \param key the EC_KEY object
798 * \return 1 on success and 0 otherwise.
800 int EC_KEY_check_key(const EC_KEY *key);
803 /********************************************************************/
804 /* de- and encoding functions for SEC1 ECPrivateKey */
805 /********************************************************************/
807 /** Decodes a private key from a memory buffer.
808 * \param key a pointer to a EC_KEY object which should be used (or NULL)
809 * \param in pointer to memory with the DER encoded private key
810 * \param len length of the DER encoded private key
811 * \return the decoded private key or NULL if an error occurred.
813 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len);
815 /** Encodes a private key object and stores the result in a buffer.
816 * \param key the EC_KEY object to encode
817 * \param out the buffer for the result (if NULL the function returns number
819 * \return 1 on success and 0 if an error occurred.
821 int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out);
824 /********************************************************************/
825 /* de- and encoding functions for EC parameters */
826 /********************************************************************/
828 /** Decodes ec parameter from a memory buffer.
829 * \param key a pointer to a EC_KEY object which should be used (or NULL)
830 * \param in pointer to memory with the DER encoded ec parameters
831 * \param len length of the DER encoded ec parameters
832 * \return a EC_KEY object with the decoded parameters or NULL if an error
835 EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len);
837 /** Encodes ec parameter and stores the result in a buffer.
838 * \param key the EC_KEY object with ec paramters to encode
839 * \param out the buffer for the result (if NULL the function returns number
841 * \return 1 on success and 0 if an error occurred.
843 int i2d_ECParameters(EC_KEY *key, unsigned char **out);
846 /********************************************************************/
847 /* de- and encoding functions for EC public key */
848 /* (octet string, not DER -- hence 'o2i' and 'i2o') */
849 /********************************************************************/
851 /** Decodes a ec public key from a octet string.
852 * \param key a pointer to a EC_KEY object which should be used
853 * \param in memory buffer with the encoded public key
854 * \param len length of the encoded public key
855 * \return EC_KEY object with decoded public key or NULL if an error
858 EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len);
860 /** Encodes a ec public key in an octet string.
861 * \param key the EC_KEY object with the public key
862 * \param out the buffer for the result (if NULL the function returns number
864 * \return 1 on success and 0 if an error occurred
866 int i2o_ECPublicKey(EC_KEY *key, unsigned char **out);
868 #ifndef OPENSSL_NO_BIO
869 /** Prints out the ec parameters on human readable form.
870 * \param bp BIO object to which the information is printed
871 * \param key EC_KEY object
872 * \return 1 on success and 0 if an error occurred
874 int ECParameters_print(BIO *bp, const EC_KEY *key);
876 /** Prints out the contents of a EC_KEY object
877 * \param bp BIO object to which the information is printed
878 * \param key EC_KEY object
879 * \param off line offset
880 * \return 1 on success and 0 if an error occurred
882 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off);
885 #ifndef OPENSSL_NO_FP_API
886 /** Prints out the ec parameters on human readable form.
887 * \param fp file descriptor to which the information is printed
888 * \param key EC_KEY object
889 * \return 1 on success and 0 if an error occurred
891 int ECParameters_print_fp(FILE *fp, const EC_KEY *key);
893 /** Prints out the contents of a EC_KEY object
894 * \param fp file descriptor to which the information is printed
895 * \param key EC_KEY object
896 * \param off line offset
897 * \return 1 on success and 0 if an error occurred
899 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
903 #define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
906 #if defined(__SUNPRO_C)
907 # if __SUNPRO_C >= 0x520
908 # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
913 #define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \
914 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, EVP_PKEY_OP_PARAMGEN, \
915 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL)
918 #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1)
920 /* BEGIN ERROR CODES */
921 /* The following lines are auto generated by the script mkerr.pl. Any changes
922 * made after this point may be overwritten when the script is next run.
924 void ERR_load_EC_strings(void);
926 /* Error codes for the EC functions. */
928 /* Function codes. */
929 #define EC_F_COMPUTE_WNAF 143
930 #define EC_F_D2I_ECPARAMETERS 144
931 #define EC_F_D2I_ECPKPARAMETERS 145
932 #define EC_F_D2I_ECPRIVATEKEY 146
933 #define EC_F_DO_EC_KEY_PRINT 221
934 #define EC_F_ECKEY_PARAM2TYPE 196
935 #define EC_F_ECKEY_PARAM_DECODE 212
936 #define EC_F_ECKEY_PRIV_DECODE 213
937 #define EC_F_ECKEY_PRIV_ENCODE 214
938 #define EC_F_ECKEY_PUB_DECODE 215
939 #define EC_F_ECKEY_PUB_ENCODE 216
940 #define EC_F_ECKEY_TYPE2PARAM 220
941 #define EC_F_ECPARAMETERS_PRINT 147
942 #define EC_F_ECPARAMETERS_PRINT_FP 148
943 #define EC_F_ECPKPARAMETERS_PRINT 149
944 #define EC_F_ECPKPARAMETERS_PRINT_FP 150
945 #define EC_F_ECP_NIST_MOD_192 203
946 #define EC_F_ECP_NIST_MOD_224 204
947 #define EC_F_ECP_NIST_MOD_256 205
948 #define EC_F_ECP_NIST_MOD_521 206
949 #define EC_F_EC_ASN1_GROUP2CURVE 153
950 #define EC_F_EC_ASN1_GROUP2FIELDID 154
951 #define EC_F_EC_ASN1_GROUP2PARAMETERS 155
952 #define EC_F_EC_ASN1_GROUP2PKPARAMETERS 156
953 #define EC_F_EC_ASN1_PARAMETERS2GROUP 157
954 #define EC_F_EC_ASN1_PKPARAMETERS2GROUP 158
955 #define EC_F_EC_EX_DATA_SET_DATA 211
956 #define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY 208
957 #define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 159
958 #define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE 195
959 #define EC_F_EC_GF2M_SIMPLE_OCT2POINT 160
960 #define EC_F_EC_GF2M_SIMPLE_POINT2OCT 161
961 #define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
962 #define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
963 #define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES 164
964 #define EC_F_EC_GFP_MONT_FIELD_DECODE 133
965 #define EC_F_EC_GFP_MONT_FIELD_ENCODE 134
966 #define EC_F_EC_GFP_MONT_FIELD_MUL 131
967 #define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE 209
968 #define EC_F_EC_GFP_MONT_FIELD_SQR 132
969 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE 189
970 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP 135
971 #define EC_F_EC_GFP_NIST_FIELD_MUL 200
972 #define EC_F_EC_GFP_NIST_FIELD_SQR 201
973 #define EC_F_EC_GFP_NIST_GROUP_SET_CURVE 202
974 #define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 165
975 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE 166
976 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100
977 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101
978 #define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102
979 #define EC_F_EC_GFP_SIMPLE_OCT2POINT 103
980 #define EC_F_EC_GFP_SIMPLE_POINT2OCT 104
981 #define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137
982 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES 167
983 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
984 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES 168
985 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
986 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES 169
987 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
988 #define EC_F_EC_GROUP_CHECK 170
989 #define EC_F_EC_GROUP_CHECK_DISCRIMINANT 171
990 #define EC_F_EC_GROUP_COPY 106
991 #define EC_F_EC_GROUP_GET0_GENERATOR 139
992 #define EC_F_EC_GROUP_GET_COFACTOR 140
993 #define EC_F_EC_GROUP_GET_CURVE_GF2M 172
994 #define EC_F_EC_GROUP_GET_CURVE_GFP 130
995 #define EC_F_EC_GROUP_GET_DEGREE 173
996 #define EC_F_EC_GROUP_GET_ORDER 141
997 #define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193
998 #define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194
999 #define EC_F_EC_GROUP_NEW 108
1000 #define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174
1001 #define EC_F_EC_GROUP_NEW_FROM_DATA 175
1002 #define EC_F_EC_GROUP_PRECOMPUTE_MULT 142
1003 #define EC_F_EC_GROUP_SET_CURVE_GF2M 176
1004 #define EC_F_EC_GROUP_SET_CURVE_GFP 109
1005 #define EC_F_EC_GROUP_SET_EXTRA_DATA 110
1006 #define EC_F_EC_GROUP_SET_GENERATOR 111
1007 #define EC_F_EC_KEY_CHECK_KEY 177
1008 #define EC_F_EC_KEY_COPY 178
1009 #define EC_F_EC_KEY_GENERATE_KEY 179
1010 #define EC_F_EC_KEY_NEW 182
1011 #define EC_F_EC_KEY_PRINT 180
1012 #define EC_F_EC_KEY_PRINT_FP 181
1013 #define EC_F_EC_POINTS_MAKE_AFFINE 136
1014 #define EC_F_EC_POINT_ADD 112
1015 #define EC_F_EC_POINT_CMP 113
1016 #define EC_F_EC_POINT_COPY 114
1017 #define EC_F_EC_POINT_DBL 115
1018 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 183
1019 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116
1020 #define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117
1021 #define EC_F_EC_POINT_INVERT 210
1022 #define EC_F_EC_POINT_IS_AT_INFINITY 118
1023 #define EC_F_EC_POINT_IS_ON_CURVE 119
1024 #define EC_F_EC_POINT_MAKE_AFFINE 120
1025 #define EC_F_EC_POINT_MUL 184
1026 #define EC_F_EC_POINT_NEW 121
1027 #define EC_F_EC_POINT_OCT2POINT 122
1028 #define EC_F_EC_POINT_POINT2OCT 123
1029 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 185
1030 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124
1031 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 186
1032 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125
1033 #define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126
1034 #define EC_F_EC_POINT_SET_TO_INFINITY 127
1035 #define EC_F_EC_PRE_COMP_DUP 207
1036 #define EC_F_EC_WNAF_MUL 187
1037 #define EC_F_EC_WNAF_PRECOMPUTE_MULT 188
1038 #define EC_F_I2D_ECPARAMETERS 190
1039 #define EC_F_I2D_ECPKPARAMETERS 191
1040 #define EC_F_I2D_ECPRIVATEKEY 192
1041 #define EC_F_I2O_ECPUBLICKEY 151
1042 #define EC_F_O2I_ECPUBLICKEY 152
1043 #define EC_F_OLD_EC_PRIV_DECODE 222
1044 #define EC_F_PKEY_EC_CTRL 197
1045 #define EC_F_PKEY_EC_CTRL_STR 198
1046 #define EC_F_PKEY_EC_DERIVE 217
1047 #define EC_F_PKEY_EC_KEYGEN 199
1048 #define EC_F_PKEY_EC_PARAMGEN 219
1049 #define EC_F_PKEY_EC_SIGN 218
1052 #define EC_R_ASN1_ERROR 115
1053 #define EC_R_ASN1_UNKNOWN_FIELD 116
1054 #define EC_R_BUFFER_TOO_SMALL 100
1055 #define EC_R_D2I_ECPKPARAMETERS_FAILURE 117
1056 #define EC_R_DECODE_ERROR 142
1057 #define EC_R_DISCRIMINANT_IS_ZERO 118
1058 #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 119
1059 #define EC_R_FIELD_TOO_LARGE 138
1060 #define EC_R_GROUP2PKPARAMETERS_FAILURE 120
1061 #define EC_R_I2D_ECPKPARAMETERS_FAILURE 121
1062 #define EC_R_INCOMPATIBLE_OBJECTS 101
1063 #define EC_R_INVALID_ARGUMENT 112
1064 #define EC_R_INVALID_COMPRESSED_POINT 110
1065 #define EC_R_INVALID_COMPRESSION_BIT 109
1066 #define EC_R_INVALID_CURVE 141
1067 #define EC_R_INVALID_DIGEST_TYPE 138
1068 #define EC_R_INVALID_ENCODING 102
1069 #define EC_R_INVALID_FIELD 103
1070 #define EC_R_INVALID_FORM 104
1071 #define EC_R_INVALID_GROUP_ORDER 122
1072 #define EC_R_INVALID_PENTANOMIAL_BASIS 132
1073 #define EC_R_INVALID_PRIVATE_KEY 123
1074 #define EC_R_INVALID_TRINOMIAL_BASIS 137
1075 #define EC_R_KEYS_NOT_SET 140
1076 #define EC_R_MISSING_PARAMETERS 124
1077 #define EC_R_MISSING_PRIVATE_KEY 125
1078 #define EC_R_NOT_A_NIST_PRIME 135
1079 #define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136
1080 #define EC_R_NOT_IMPLEMENTED 126
1081 #define EC_R_NOT_INITIALIZED 111
1082 #define EC_R_NO_FIELD_MOD 133
1083 #define EC_R_NO_PARAMETERS_SET 139
1084 #define EC_R_PASSED_NULL_PARAMETER 134
1085 #define EC_R_PKPARAMETERS2GROUP_FAILURE 127
1086 #define EC_R_POINT_AT_INFINITY 106
1087 #define EC_R_POINT_IS_NOT_ON_CURVE 107
1088 #define EC_R_SLOT_FULL 108
1089 #define EC_R_UNDEFINED_GENERATOR 113
1090 #define EC_R_UNDEFINED_ORDER 128
1091 #define EC_R_UNKNOWN_GROUP 129
1092 #define EC_R_UNKNOWN_ORDER 114
1093 #define EC_R_UNSUPPORTED_FIELD 131
1094 #define EC_R_WRONG_ORDER 130