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Top level ECDSA sign/verify redirection.
[thirdparty/openssl.git] / include / openssl / ec.h
CommitLineData
bd3602eb 1
65e81670 2/* crypto/ec/ec.h */
35b73a1f
BM		 3/*
4 * Originally written by Bodo Moeller for the OpenSSL project.
5 */
ba12070f
NL		 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 */
65e81670 10/* ====================================================================
ba12070f 11 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
6cc5e19d 12 *
65e81670
BM		 13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
6cc5e19d 16 *
65e81670 17 * 1. Redistributions of source code must retain the above copyright
0f113f3e 18 * notice, this list of conditions and the following disclaimer.
6cc5e19d 19 *
65e81670
BM		 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.
6cc5e19d 24 *
65e81670
BM		 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).
6cc5e19d
BM		 61 *
62 */
7793f30e
BM		 63/* ====================================================================
64 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
65 *
0f113f3e 66 * Portions of the attached software ("Contribution") are developed by
7793f30e
BM		 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 *
0f113f3e 72 * The elliptic curve binary polynomial software is originally written by
7793f30e
BM		 73 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
74 *
75 */
6cc5e19d 76
6cc5e19d 77#ifndef HEADER_EC_H
0f113f3e 78# define HEADER_EC_H
6cc5e19d 79
0f113f3e 80# include <openssl/opensslconf.h>
87c9c659 81
0f113f3e
MC		 82# ifdef OPENSSL_NO_EC
83# error EC is disabled.
84# endif
bb62a8b0 85
0f113f3e
MC		 86# include <openssl/asn1.h>
87# include <openssl/symhacks.h>
88# ifdef OPENSSL_USE_DEPRECATED
89# include <openssl/bn.h>
90# endif
6cc5e19d 91
0f113f3e 92# ifdef __cplusplus
65e81670 93extern "C" {
0f113f3e
MC		 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
7f24b1c3 98# endif
6cc5e19d 99
0f113f3e
MC		 100# ifndef OPENSSL_ECC_MAX_FIELD_BITS
101# define OPENSSL_ECC_MAX_FIELD_BITS 661
102# endif
5e3225cc 103
ba12070f
NL		 104/** Enum for the point conversion form as defined in X9.62 (ECDSA)
105 * for the encoding of a elliptic curve point (x,y) */
3a12ce01 106typedef enum {
0f113f3e 107 /** the point is encoded as z||x, where the octet z specifies
ba12070f 108 * which solution of the quadratic equation y is */
0f113f3e 109 POINT_CONVERSION_COMPRESSED = 2,
91d2728b 110 /** the point is encoded as z||x||y, where z is the octet 0x04 */
0f113f3e
MC		 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
3a12ce01
BM		 115} point_conversion_form_t;
116
3a12ce01
BM		 117typedef struct ec_method_st EC_METHOD;
118
119typedef struct ec_group_st
50e735f9
MC		 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 */
0f113f3e 128 EC_GROUP;
3a12ce01
BM		 129
130typedef struct ec_point_st EC_POINT;
131
ba12070f 132/********************************************************************/
0f113f3e 133/* EC_METHODs for curves over GF(p) */
ba12070f
NL		 134/********************************************************************/
135
136/** Returns the basic GFp ec methods which provides the basis for the
0f113f3e 137 * optimized methods.
ba12070f 138 * \return EC_METHOD object
3a12ce01 139 */
3a12ce01 140const EC_METHOD *EC_GFp_simple_method(void);
ba12070f
NL		 141
142/** Returns GFp methods using montgomery multiplication.
143 * \return EC_METHOD object
144 */
3a12ce01 145const EC_METHOD *EC_GFp_mont_method(void);
ba12070f
NL		 146
147/** Returns GFp methods using optimized methods for NIST recommended curves
148 * \return EC_METHOD object
149 */
5c6bf031 150const EC_METHOD *EC_GFp_nist_method(void);
3a12ce01 151
0f113f3e
MC		 152# ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
153# ifndef OPENSSL_SYS_WIN32
04daec86
BM		 154/** Returns 64-bit optimized methods for nistp224
155 * \return EC_METHOD object
156 */
157const EC_METHOD *EC_GFp_nistp224_method(void);
3e00b4c9
BM		 158
159/** Returns 64-bit optimized methods for nistp256
160 * \return EC_METHOD object
161 */
162const EC_METHOD *EC_GFp_nistp256_method(void);
163
164/** Returns 64-bit optimized methods for nistp521
165 * \return EC_METHOD object
166 */
167const EC_METHOD *EC_GFp_nistp521_method(void);
0f113f3e
MC		 168# endif
169# endif
ba12070f 170
0f113f3e
MC		 171# ifndef OPENSSL_NO_EC2M
172/********************************************************************/
ba12070f
NL		 173/* EC_METHOD for curves over GF(2^m) */
174/********************************************************************/
175
0f113f3e 176/** Returns the basic GF2m ec method
ba12070f 177 * \return EC_METHOD object
7793f30e
BM		 178 */
179const EC_METHOD *EC_GF2m_simple_method(void);
180
0f113f3e 181# endif
3a12ce01 182
ba12070f
NL		 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 */
191EC_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 */
196void 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 */
201void 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 */
208int 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 */
215EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);
216
217/** Returns the EC_METHOD of the EC_GROUP object.
0f113f3e 218 * \param group EC_GROUP object
ba12070f
NL		 219 * \return EC_METHOD used in this EC_GROUP object.
220 */
221const 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 */
227int EC_METHOD_get_field_type(const EC_METHOD *meth);
228
229/** Sets the generator and it's order/cofactor of a EC_GROUP object.
0f113f3e 230 * \param group EC_GROUP object
ba12070f
NL		 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.
478b50cf 235 * \return 1 on success and 0 if an error occurred
ba12070f 236 */
0f113f3e
MC		 237int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator,
238 const BIGNUM *order, const BIGNUM *cofactor);
ba12070f
NL		 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 */
244const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
245
f54be179
AP		 246/** Returns the montgomery data for order(Generator)
247 * \param group EC_GROUP object
248 * \return the currently used generator (possibly NULL).
249*/
250BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group);
251
ba12070f
NL		 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 BN_CTX object (optional)
478b50cf 256 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 257 */
258int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
48fe4d62 259
ba12070f
NL		 260/** Gets the cofactor of a EC_GROUP
261 * \param group EC_GROUP object
262 * \param cofactor BIGNUM to which the cofactor is copied
263 * \param ctx BN_CTX object (optional)
478b50cf 264 * \return 1 on success and 0 if an error occurred
ba12070f 265 */
0f113f3e
MC		 266int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,
267 BN_CTX *ctx);
b6db386f 268
ba12070f
NL		 269/** Sets the name of a EC_GROUP object
270 * \param group EC_GROUP object
271 * \param nid NID of the curve name OID
272 */
273void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
b6db386f 274
ba12070f
NL		 275/** Returns the curve name of a EC_GROUP object
276 * \param group EC_GROUP object
277 * \return NID of the curve name OID or 0 if not set.
278 */
279int EC_GROUP_get_curve_name(const EC_GROUP *group);
945e15a2 280
ba12070f
NL		 281void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
282int EC_GROUP_get_asn1_flag(const EC_GROUP *group);
5f3d6f70 283
0f113f3e
MC		 284void EC_GROUP_set_point_conversion_form(EC_GROUP *group,
285 point_conversion_form_t form);
5f3d6f70
BM		 286point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
287
9945b460 288unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x);
5f3d6f70
BM		 289size_t EC_GROUP_get_seed_len(const EC_GROUP *);
290size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
48fe4d62 291
ba12070f
NL		 292/** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b
293 * \param group EC_GROUP object
294 * \param p BIGNUM with the prime number
295 * \param a BIGNUM with parameter a of the equation
296 * \param b BIGNUM with parameter b of the equation
297 * \param ctx BN_CTX object (optional)
478b50cf 298 * \return 1 on success and 0 if an error occurred
ba12070f 299 */
0f113f3e
MC		 300int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
301 const BIGNUM *b, BN_CTX *ctx);
ba12070f
NL		 302
303/** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b
304 * \param group EC_GROUP object
305 * \param p BIGNUM for the prime number
306 * \param a BIGNUM for parameter a of the equation
307 * \param b BIGNUM for parameter b of the equation
308 * \param ctx BN_CTX object (optional)
478b50cf 309 * \return 1 on success and 0 if an error occurred
ba12070f 310 */
0f113f3e
MC		 311int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a,
312 BIGNUM *b, BN_CTX *ctx);
ba12070f 313
0f113f3e 314# ifndef OPENSSL_NO_EC2M
ba12070f
NL		 315/** Sets the parameter of a 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 with the polynomial defining the underlying field
318 * \param a BIGNUM with parameter a of the equation
319 * \param b BIGNUM with parameter b of the equation
320 * \param ctx BN_CTX object (optional)
478b50cf 321 * \return 1 on success and 0 if an error occurred
ba12070f 322 */
0f113f3e
MC		 323int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
324 const BIGNUM *b, BN_CTX *ctx);
ba12070f
NL		 325
326/** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
327 * \param group EC_GROUP object
328 * \param p BIGNUM for the polynomial defining the underlying field
329 * \param a BIGNUM for parameter a of the equation
330 * \param b BIGNUM for parameter b of the equation
331 * \param ctx BN_CTX object (optional)
478b50cf 332 * \return 1 on success and 0 if an error occurred
ba12070f 333 */
0f113f3e
MC		 334int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a,
335 BIGNUM *b, BN_CTX *ctx);
336# endif
337/** Returns the number of bits needed to represent a field element
ba12070f
NL		 338 * \param group EC_GROUP object
339 * \return number of bits needed to represent a field element
340 */
341int EC_GROUP_get_degree(const EC_GROUP *group);
3a12ce01 342
ba12070f
NL		 343/** Checks whether the parameter in the EC_GROUP define a valid ec group
344 * \param group EC_GROUP object
345 * \param ctx BN_CTX object (optional)
346 * \return 1 if group is a valid ec group and 0 otherwise
347 */
af28dd6c 348int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
945e15a2 349
ba12070f
NL		 350/** Checks whether the discriminant of the elliptic curve is zero or not
351 * \param group EC_GROUP object
352 * \param ctx BN_CTX object (optional)
353 * \return 1 if the discriminant is not zero and 0 otherwise
354 */
355int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);
356
357/** Compares two EC_GROUP objects
358 * \param a first EC_GROUP object
359 * \param b second EC_GROUP object
360 * \param ctx BN_CTX object (optional)
361 * \return 0 if both groups are equal and 1 otherwise
362 */
363int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);
ada0e717 364
0f113f3e
MC		 365/*
366 * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after
367 * choosing an appropriate EC_METHOD
368 */
945e15a2 369
ba12070f
NL		 370/** Creates a new EC_GROUP object with the specified parameters defined
371 * over GFp (defined by the equation y^2 = x^3 + a*x + b)
372 * \param p BIGNUM with the prime number
373 * \param a BIGNUM with the parameter a of the equation
374 * \param b BIGNUM with the parameter b of the equation
375 * \param ctx BN_CTX object (optional)
376 * \return newly created EC_GROUP object with the specified parameters
377 */
0f113f3e
MC		 378EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a,
379 const BIGNUM *b, BN_CTX *ctx);
380# ifndef OPENSSL_NO_EC2M
ba12070f
NL		 381/** Creates a new EC_GROUP object with the specified parameters defined
382 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
383 * \param p BIGNUM with the polynomial defining the underlying field
384 * \param a BIGNUM with the parameter a of the equation
385 * \param b BIGNUM with the parameter b of the equation
386 * \param ctx BN_CTX object (optional)
387 * \return newly created EC_GROUP object with the specified parameters
388 */
0f113f3e
MC		 389EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a,
390 const BIGNUM *b, BN_CTX *ctx);
391# endif
ba12070f
NL		 392/** Creates a EC_GROUP object with a curve specified by a NID
393 * \param nid NID of the OID of the curve name
394 * \return newly created EC_GROUP object with specified curve or NULL
395 * if an error occurred
396 */
8b15c740 397EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
ba12070f 398
ba12070f
NL		 399/********************************************************************/
400/* handling of internal curves */
401/********************************************************************/
402
0f113f3e
MC		 403typedef struct {
404 int nid;
405 const char *comment;
406} EC_builtin_curve;
ba12070f 407
0f113f3e
MC		 408/*
409 * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all
410 * available curves or zero if a error occurred. In case r ist not zero
411 * nitems EC_builtin_curve structures are filled with the data of the first
412 * nitems internal groups
413 */
65b1d31d 414size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
7eb18f12 415
64095ce9
DSH		 416const char *EC_curve_nid2nist(int nid);
417int EC_curve_nist2nid(const char *name);
7e31164a 418
ba12070f
NL		 419/********************************************************************/
420/* EC_POINT functions */
421/********************************************************************/
422
423/** Creates a new EC_POINT object for the specified EC_GROUP
424 * \param group EC_GROUP the underlying EC_GROUP object
425 * \return newly created EC_POINT object or NULL if an error occurred
426 */
427EC_POINT *EC_POINT_new(const EC_GROUP *group);
428
429/** Frees a EC_POINT object
430 * \param point EC_POINT object to be freed
431 */
432void EC_POINT_free(EC_POINT *point);
433
434/** Clears and frees a EC_POINT object
435 * \param point EC_POINT object to be cleared and freed
436 */
437void EC_POINT_clear_free(EC_POINT *point);
438
439/** Copies EC_POINT object
440 * \param dst destination EC_POINT object
441 * \param src source EC_POINT object
478b50cf 442 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 443 */
444int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);
945e15a2 445
ba12070f
NL		 446/** Creates a new EC_POINT object and copies the content of the supplied
447 * EC_POINT
448 * \param src source EC_POINT object
449 * \param group underlying the EC_GROUP object
0f113f3e 450 * \return newly created EC_POINT object or NULL if an error occurred
ba12070f
NL		 451 */
452EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);
0f113f3e
MC		 453
454/** Returns the EC_METHOD used in EC_POINT object
ba12070f
NL		 455 * \param point EC_POINT object
456 * \return the EC_METHOD used
457 */
458const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);
459
460/** Sets a point to infinity (neutral element)
461 * \param group underlying EC_GROUP object
462 * \param point EC_POINT to set to infinity
478b50cf 463 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 464 */
465int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);
466
467/** Sets the jacobian projective coordinates of a EC_POINT over GFp
468 * \param group underlying EC_GROUP object
469 * \param p EC_POINT object
470 * \param x BIGNUM with the x-coordinate
471 * \param y BIGNUM with the y-coordinate
472 * \param z BIGNUM with the z-coordinate
473 * \param ctx BN_CTX object (optional)
478b50cf 474 * \return 1 on success and 0 if an error occurred
ba12070f 475 */
0f113f3e
MC		 476int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group,
477 EC_POINT *p, const BIGNUM *x,
478 const BIGNUM *y, const BIGNUM *z,
479 BN_CTX *ctx);
ba12070f
NL		 480
481/** Gets the jacobian projective coordinates of a EC_POINT over GFp
482 * \param group underlying EC_GROUP object
483 * \param p EC_POINT object
484 * \param x BIGNUM for the x-coordinate
485 * \param y BIGNUM for the y-coordinate
486 * \param z BIGNUM for the z-coordinate
487 * \param ctx BN_CTX object (optional)
478b50cf 488 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 489 */
490int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group,
0f113f3e
MC		 491 const EC_POINT *p, BIGNUM *x,
492 BIGNUM *y, BIGNUM *z,
493 BN_CTX *ctx);
ba12070f
NL		 494
495/** Sets the affine coordinates of a EC_POINT over GFp
496 * \param group underlying EC_GROUP object
497 * \param p EC_POINT object
498 * \param x BIGNUM with the x-coordinate
499 * \param y BIGNUM with the y-coordinate
500 * \param ctx BN_CTX object (optional)
478b50cf 501 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 502 */
503int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
0f113f3e
MC		 504 const BIGNUM *x, const BIGNUM *y,
505 BN_CTX *ctx);
ba12070f
NL		 506
507/** Gets the affine coordinates of a EC_POINT over GFp
508 * \param group underlying EC_GROUP object
509 * \param p EC_POINT object
510 * \param x BIGNUM for the x-coordinate
511 * \param y BIGNUM for the y-coordinate
512 * \param ctx BN_CTX object (optional)
478b50cf 513 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 514 */
515int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group,
0f113f3e
MC		 516 const EC_POINT *p, BIGNUM *x,
517 BIGNUM *y, BN_CTX *ctx);
ba12070f
NL		 518
519/** Sets the x9.62 compressed coordinates of a EC_POINT over GFp
520 * \param group underlying EC_GROUP object
521 * \param p EC_POINT object
522 * \param x BIGNUM with x-coordinate
523 * \param y_bit integer with the y-Bit (either 0 or 1)
524 * \param ctx BN_CTX object (optional)
478b50cf 525 * \return 1 on success and 0 if an error occurred
ba12070f 526 */
0f113f3e
MC		 527int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group,
528 EC_POINT *p, const BIGNUM *x,
529 int y_bit, BN_CTX *ctx);
530# ifndef OPENSSL_NO_EC2M
ba12070f
NL		 531/** Sets the affine coordinates of a EC_POINT over GF2m
532 * \param group underlying EC_GROUP object
533 * \param p EC_POINT object
534 * \param x BIGNUM with the x-coordinate
535 * \param y BIGNUM with the y-coordinate
536 * \param ctx BN_CTX object (optional)
478b50cf 537 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 538 */
539int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
0f113f3e
MC		 540 const BIGNUM *x, const BIGNUM *y,
541 BN_CTX *ctx);
ba12070f
NL		 542
543/** Gets the affine coordinates of a EC_POINT over GF2m
544 * \param group underlying EC_GROUP object
545 * \param p EC_POINT object
546 * \param x BIGNUM for the x-coordinate
547 * \param y BIGNUM for the y-coordinate
548 * \param ctx BN_CTX object (optional)
478b50cf 549 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 550 */
551int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group,
0f113f3e
MC		 552 const EC_POINT *p, BIGNUM *x,
553 BIGNUM *y, BN_CTX *ctx);
ba12070f
NL		 554
555/** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m
556 * \param group underlying EC_GROUP object
557 * \param p EC_POINT object
558 * \param x BIGNUM with x-coordinate
559 * \param y_bit integer with the y-Bit (either 0 or 1)
560 * \param ctx BN_CTX object (optional)
478b50cf 561 * \return 1 on success and 0 if an error occurred
ba12070f 562 */
0f113f3e
MC		 563int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,
564 EC_POINT *p, const BIGNUM *x,
565 int y_bit, BN_CTX *ctx);
566# endif
ba12070f
NL		 567/** Encodes a EC_POINT object to a octet string
568 * \param group underlying EC_GROUP object
569 * \param p EC_POINT object
570 * \param form point conversion form
571 * \param buf memory buffer for the result. If NULL the function returns
572 * required buffer size.
573 * \param len length of the memory buffer
574 * \param ctx BN_CTX object (optional)
575 * \return the length of the encoded octet string or 0 if an error occurred
576 */
577size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
0f113f3e
MC		 578 point_conversion_form_t form,
579 unsigned char *buf, size_t len, BN_CTX *ctx);
ba12070f
NL		 580
581/** Decodes a EC_POINT from a octet string
582 * \param group underlying EC_GROUP object
583 * \param p EC_POINT object
584 * \param buf memory buffer with the encoded ec point
585 * \param len length of the encoded ec point
586 * \param ctx BN_CTX object (optional)
478b50cf 587 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 588 */
589int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
0f113f3e 590 const unsigned char *buf, size_t len, BN_CTX *ctx);
7d7db13e 591
6cbe6382
BM		 592/* other interfaces to point2oct/oct2point: */
593BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
0f113f3e 594 point_conversion_form_t form, BIGNUM *, BN_CTX *);
6cbe6382 595EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
0f113f3e 596 EC_POINT *, BN_CTX *);
6cbe6382 597char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
0f113f3e 598 point_conversion_form_t form, BN_CTX *);
6cbe6382 599EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
0f113f3e 600 EC_POINT *, BN_CTX *);
3a12ce01 601
ba12070f
NL		 602/********************************************************************/
603/* functions for doing EC_POINT arithmetic */
604/********************************************************************/
605
0f113f3e 606/** Computes the sum of two EC_POINT
ba12070f
NL		 607 * \param group underlying EC_GROUP object
608 * \param r EC_POINT object for the result (r = a + b)
609 * \param a EC_POINT object with the first summand
610 * \param b EC_POINT object with the second summand
611 * \param ctx BN_CTX object (optional)
478b50cf 612 * \return 1 on success and 0 if an error occurred
ba12070f 613 */
0f113f3e
MC		 614int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
615 const EC_POINT *b, BN_CTX *ctx);
ba12070f
NL		 616
617/** Computes the double of a EC_POINT
618 * \param group underlying EC_GROUP object
619 * \param r EC_POINT object for the result (r = 2 * a)
0f113f3e 620 * \param a EC_POINT object
ba12070f 621 * \param ctx BN_CTX object (optional)
478b50cf 622 * \return 1 on success and 0 if an error occurred
ba12070f 623 */
0f113f3e
MC		 624int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
625 BN_CTX *ctx);
ba12070f
NL		 626
627/** Computes the inverse of a EC_POINT
628 * \param group underlying EC_GROUP object
629 * \param a EC_POINT object to be inverted (it's used for the result as well)
630 * \param ctx BN_CTX object (optional)
478b50cf 631 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 632 */
633int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);
634
635/** Checks whether the point is the neutral element of the group
636 * \param group the underlying EC_GROUP object
637 * \param p EC_POINT object
638 * \return 1 if the point is the neutral element and 0 otherwise
639 */
640int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);
641
0f113f3e 642/** Checks whether the point is on the curve
ba12070f
NL		 643 * \param group underlying EC_GROUP object
644 * \param point EC_POINT object to check
645 * \param ctx BN_CTX object (optional)
646 * \return 1 if point if on the curve and 0 otherwise
647 */
0f113f3e
MC		 648int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point,
649 BN_CTX *ctx);
ba12070f 650
0f113f3e 651/** Compares two EC_POINTs
ba12070f
NL		 652 * \param group underlying EC_GROUP object
653 * \param a first EC_POINT object
654 * \param b second EC_POINT object
655 * \param ctx BN_CTX object (optional)
656 * \return 0 if both points are equal and a value != 0 otherwise
657 */
0f113f3e
MC		 658int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b,
659 BN_CTX *ctx);
fb171e53 660
9945b460 661int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx);
0f113f3e
MC		 662int EC_POINTs_make_affine(const EC_GROUP *group, size_t num,
663 EC_POINT *points[], BN_CTX *ctx);
fb171e53 664
16602b5c 665/** Computes r = generator * n sum_{i=0}^{num-1} p[i] * m[i]
ba12070f
NL		 666 * \param group underlying EC_GROUP object
667 * \param r EC_POINT object for the result
668 * \param n BIGNUM with the multiplier for the group generator (optional)
669 * \param num number futher summands
670 * \param p array of size num of EC_POINT objects
671 * \param m array of size num of BIGNUM objects
672 * \param ctx BN_CTX object (optional)
478b50cf 673 * \return 1 on success and 0 if an error occurred
ba12070f 674 */
0f113f3e
MC		 675int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
676 size_t num, const EC_POINT *p[], const BIGNUM *m[],
677 BN_CTX *ctx);
ba12070f
NL		 678
679/** Computes r = generator * n + q * m
680 * \param group underlying EC_GROUP object
681 * \param r EC_POINT object for the result
682 * \param n BIGNUM with the multiplier for the group generator (optional)
683 * \param q EC_POINT object with the first factor of the second summand
684 * \param m BIGNUM with the second factor of the second summand
685 * \param ctx BN_CTX object (optional)
478b50cf 686 * \return 1 on success and 0 if an error occurred
ba12070f 687 */
0f113f3e
MC		 688int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
689 const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);
3a12ce01 690
ba12070f
NL		 691/** Stores multiples of generator for faster point multiplication
692 * \param group EC_GROUP object
693 * \param ctx BN_CTX object (optional)
478b50cf 694 * \return 1 on success and 0 if an error occurred
ba12070f
NL		 695 */
696int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
6cc5e19d 697
ba12070f
NL		 698/** Reports whether a precomputation has been done
699 * \param group EC_GROUP object
700 * \return 1 if a pre-computation has been done and 0 otherwise
701 */
702int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
6cc5e19d 703
ba12070f
NL		 704/********************************************************************/
705/* ASN1 stuff */
706/********************************************************************/
8aefe253 707
0f113f3e
MC		 708/*
709 * EC_GROUP_get_basis_type() returns the NID of the basis type used to
710 * represent the field elements
711 */
34f1f2a8 712int EC_GROUP_get_basis_type(const EC_GROUP *);
0f113f3e 713# ifndef OPENSSL_NO_EC2M
34f1f2a8 714int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
0f113f3e
MC		 715int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
716 unsigned int *k2, unsigned int *k3);
717# endif
8aefe253 718
86f300d3
DSH		 719# define OPENSSL_EC_EXPLICIT_CURVE 0x000
720# define OPENSSL_EC_NAMED_CURVE 0x001
458c2917 721
458c2917
BM		 722typedef struct ecpk_parameters_st ECPKPARAMETERS;
723
6343829a 724EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
458c2917
BM		 725int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
726
0f113f3e
MC		 727# define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
728# define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
729# define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
5dbd3efc 730 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
0f113f3e
MC		 731# define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
732 (unsigned char *)(x))
5f3d6f70 733
0f113f3e 734int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
0f113f3e
MC		 735# ifndef OPENSSL_NO_STDIO
736int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
737# endif
ba12070f
NL		 738
739/********************************************************************/
740/* EC_KEY functions */
741/********************************************************************/
742
14a7cfb3 743typedef struct ec_key_st EC_KEY;
28572b57 744typedef struct ec_key_method_st EC_KEY_METHOD;
14a7cfb3 745
14a7cfb3 746/* some values for the encoding_flag */
0f113f3e
MC		 747# define EC_PKEY_NO_PARAMETERS 0x001
748# define EC_PKEY_NO_PUBKEY 0x002
14a7cfb3 749
cac4fb58 750/* some values for the flags field */
0f113f3e
MC		 751# define EC_FLAG_NON_FIPS_ALLOW 0x1
752# define EC_FLAG_FIPS_CHECKED 0x2
a22a7e70 753# define EC_FLAG_COFACTOR_ECDH 0x1000
cac4fb58 754
ba12070f
NL		 755/** Creates a new EC_KEY object.
756 * \return EC_KEY object or NULL if an error occurred.
757 */
14a7cfb3 758EC_KEY *EC_KEY_new(void);
ba12070f 759
cac4fb58
DSH		 760int EC_KEY_get_flags(const EC_KEY *key);
761
762void EC_KEY_set_flags(EC_KEY *key, int flags);
763
764void EC_KEY_clear_flags(EC_KEY *key, int flags);
765
ba12070f
NL		 766/** Creates a new EC_KEY object using a named curve as underlying
767 * EC_GROUP object.
768 * \param nid NID of the named curve.
0f113f3e 769 * \return EC_KEY object or NULL if an error occurred.
ba12070f 770 */
9dd84053 771EC_KEY *EC_KEY_new_by_curve_name(int nid);
ba12070f
NL		 772
773/** Frees a EC_KEY object.
774 * \param key EC_KEY object to be freed.
775 */
776void EC_KEY_free(EC_KEY *key);
777
778/** Copies a EC_KEY object.
779 * \param dst destination EC_KEY object
780 * \param src src EC_KEY object
781 * \return dst or NULL if an error occurred.
782 */
783EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src);
784
785/** Creates a new EC_KEY object and copies the content from src to it.
786 * \param src the source EC_KEY object
787 * \return newly created EC_KEY object or NULL if an error occurred.
788 */
789EC_KEY *EC_KEY_dup(const EC_KEY *src);
790
791/** Increases the internal reference count of a EC_KEY object.
792 * \param key EC_KEY object
793 * \return 1 on success and 0 if an error occurred.
794 */
795int EC_KEY_up_ref(EC_KEY *key);
796
797/** Returns the EC_GROUP object of a EC_KEY object
798 * \param key EC_KEY object
799 * \return the EC_GROUP object (possibly NULL).
800 */
801const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);
802
803/** Sets the EC_GROUP of a EC_KEY object.
804 * \param key EC_KEY object
805 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY
806 * object will use an own copy of the EC_GROUP).
807 * \return 1 on success and 0 if an error occurred.
808 */
809int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);
810
811/** Returns the private key of a EC_KEY object.
812 * \param key EC_KEY object
813 * \return a BIGNUM with the private key (possibly NULL).
814 */
815const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);
816
817/** Sets the private key of a EC_KEY object.
818 * \param key EC_KEY object
819 * \param prv BIGNUM with the private key (note: the EC_KEY object
820 * will use an own copy of the BIGNUM).
821 * \return 1 on success and 0 if an error occurred.
822 */
823int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);
824
825/** Returns the public key of a EC_KEY object.
826 * \param key the EC_KEY object
827 * \return a EC_POINT object with the public key (possibly NULL)
828 */
829const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);
830
831/** Sets the public key of a EC_KEY object.
832 * \param key EC_KEY object
833 * \param pub EC_POINT object with the public key (note: the EC_KEY object
834 * will use an own copy of the EC_POINT object).
835 * \return 1 on success and 0 if an error occurred.
836 */
837int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);
838
839unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
9945b460
DSH		 840void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);
841point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key);
842void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform);
9dd84053 843/* functions to set/get method specific data */
0f113f3e
MC		 844void *EC_KEY_get_key_method_data(EC_KEY *key,
845 void *(*dup_func) (void *),
846 void (*free_func) (void *),
847 void (*clear_free_func) (void *));
f11d0c79
BM		 848/** Sets the key method data of an EC_KEY object, if none has yet been set.
849 * \param key EC_KEY object
850 * \param data opaque data to install.
851 * \param dup_func a function that duplicates |data|.
852 * \param free_func a function that frees |data|.
853 * \param clear_free_func a function that wipes and frees |data|.
854 * \return the previously set data pointer, or NULL if |data| was inserted.
855 */
856void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data,
0f113f3e
MC		 857 void *(*dup_func) (void *),
858 void (*free_func) (void *),
859 void (*clear_free_func) (void *));
9dd84053 860/* wrapper functions for the underlying EC_GROUP object */
9945b460 861void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag);
ba12070f 862
0f113f3e 863/** Creates a table of pre-computed multiples of the generator to
ba12070f
NL		 864 * accelerate further EC_KEY operations.
865 * \param key EC_KEY object
866 * \param ctx BN_CTX object (optional)
867 * \return 1 on success and 0 if an error occurred.
868 */
869int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);
870
871/** Creates a new ec private (and optional a new public) key.
872 * \param key EC_KEY object
873 * \return 1 on success and 0 if an error occurred.
874 */
875int EC_KEY_generate_key(EC_KEY *key);
876
877/** Verifies that a private and/or public key is valid.
878 * \param key the EC_KEY object
879 * \return 1 on success and 0 otherwise.
880 */
881int EC_KEY_check_key(const EC_KEY *key);
882
fef1c40b 883/** Sets a public key from affine coordindates performing
478b50cf 884 * necessary NIST PKV tests.
fef1c40b
DSH		 885 * \param key the EC_KEY object
886 * \param x public key x coordinate
887 * \param y public key y coordinate
888 * \return 1 on success and 0 otherwise.
889 */
0f113f3e
MC		 890int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x,
891 BIGNUM *y);
ba12070f
NL		 892
893/********************************************************************/
894/* de- and encoding functions for SEC1 ECPrivateKey */
895/********************************************************************/
896
897/** Decodes a private key from a memory buffer.
898 * \param key a pointer to a EC_KEY object which should be used (or NULL)
899 * \param in pointer to memory with the DER encoded private key
900 * \param len length of the DER encoded private key
901 * \return the decoded private key or NULL if an error occurred.
902 */
6343829a 903EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len);
ba12070f
NL		 904
905/** Encodes a private key object and stores the result in a buffer.
906 * \param key the EC_KEY object to encode
907 * \param out the buffer for the result (if NULL the function returns number
908 * of bytes needed).
909 * \return 1 on success and 0 if an error occurred.
910 */
911int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out);
912
ba12070f
NL		 913/********************************************************************/
914/* de- and encoding functions for EC parameters */
915/********************************************************************/
916
917/** Decodes ec parameter from a memory buffer.
918 * \param key a pointer to a EC_KEY object which should be used (or NULL)
919 * \param in pointer to memory with the DER encoded ec parameters
920 * \param len length of the DER encoded ec parameters
921 * \return a EC_KEY object with the decoded parameters or NULL if an error
922 * occurred.
923 */
924EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len);
925
926/** Encodes ec parameter and stores the result in a buffer.
1afd7fa9 927 * \param key the EC_KEY object with ec parameters to encode
ba12070f
NL		 928 * \param out the buffer for the result (if NULL the function returns number
929 * of bytes needed).
930 * \return 1 on success and 0 if an error occurred.
931 */
932int i2d_ECParameters(EC_KEY *key, unsigned char **out);
933
ba12070f
NL		 934/********************************************************************/
935/* de- and encoding functions for EC public key */
936/* (octet string, not DER -- hence 'o2i' and 'i2o') */
937/********************************************************************/
938
939/** Decodes a ec public key from a octet string.
940 * \param key a pointer to a EC_KEY object which should be used
941 * \param in memory buffer with the encoded public key
942 * \param len length of the encoded public key
943 * \return EC_KEY object with decoded public key or NULL if an error
944 * occurred.
945 */
946EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len);
947
948/** Encodes a ec public key in an octet string.
949 * \param key the EC_KEY object with the public key
950 * \param out the buffer for the result (if NULL the function returns number
951 * of bytes needed).
952 * \return 1 on success and 0 if an error occurred
953 */
954int i2o_ECPublicKey(EC_KEY *key, unsigned char **out);
14a7cfb3 955
ba12070f
NL		 956/** Prints out the ec parameters on human readable form.
957 * \param bp BIO object to which the information is printed
958 * \param key EC_KEY object
959 * \return 1 on success and 0 if an error occurred
960 */
0f113f3e 961int ECParameters_print(BIO *bp, const EC_KEY *key);
ba12070f
NL		 962
963/** Prints out the contents of a EC_KEY object
964 * \param bp BIO object to which the information is printed
965 * \param key EC_KEY object
0f113f3e 966 * \param off line offset
ba12070f
NL		 967 * \return 1 on success and 0 if an error occurred
968 */
0f113f3e 969int EC_KEY_print(BIO *bp, const EC_KEY *key, int off);
ba12070f 970
0f113f3e 971# ifndef OPENSSL_NO_STDIO
ba12070f
NL		 972/** Prints out the ec parameters on human readable form.
973 * \param fp file descriptor to which the information is printed
974 * \param key EC_KEY object
975 * \return 1 on success and 0 if an error occurred
976 */
0f113f3e 977int ECParameters_print_fp(FILE *fp, const EC_KEY *key);
ba12070f
NL		 978
979/** Prints out the contents of a EC_KEY object
980 * \param fp file descriptor to which the information is printed
981 * \param key EC_KEY object
0f113f3e 982 * \param off line offset
ba12070f
NL		 983 * \return 1 on success and 0 if an error occurred
984 */
0f113f3e 985int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
ba12070f 986
0f113f3e 987# endif
0bee0e62 988
28572b57
DSH		 989const EC_KEY_METHOD *EC_KEY_OpenSSL(void);
990const EC_KEY_METHOD *EC_KEY_get_default_method(void);
991void EC_KEY_set_default_method(const EC_KEY_METHOD *meth);
992EC_KEY *EC_KEY_new_method(ENGINE *engine);
993
768c53e1
DSH		 994int ECDH_KDF_X9_62(unsigned char *out, size_t outlen,
995 const unsigned char *Z, size_t Zlen,
996 const unsigned char *sinfo, size_t sinfolen,
997 const EVP_MD *md);
998
a22a7e70
DSH		 999int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
1000 EC_KEY *ecdh, void *(*KDF) (const void *in, size_t inlen,
1001 void *out, size_t *outlen));
1002
714b2abb
DSH		 1003typedef struct ECDSA_SIG_st ECDSA_SIG;
1004
ef5b2ba6
DSH		 1005/** Allocates and initialize a ECDSA_SIG structure
1006 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
1007 */
1008ECDSA_SIG *ECDSA_SIG_new(void);
1009
1010/** frees a ECDSA_SIG structure
1011 * \param sig pointer to the ECDSA_SIG structure
1012 */
1013void ECDSA_SIG_free(ECDSA_SIG *sig);
1014
1015/** DER encode content of ECDSA_SIG object (note: this function modifies *pp
1016 * (*pp += length of the DER encoded signature)).
1017 * \param sig pointer to the ECDSA_SIG object
1018 * \param pp pointer to a unsigned char pointer for the output or NULL
1019 * \return the length of the DER encoded ECDSA_SIG object or 0
1020 */
1021int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **pp);
1022
1023/** Decodes a DER encoded ECDSA signature (note: this function changes *pp
1024 * (*pp += len)).
1025 * \param sig pointer to ECDSA_SIG pointer (may be NULL)
1026 * \param pp memory buffer with the DER encoded signature
1027 * \param len length of the buffer
1028 * \return pointer to the decoded ECDSA_SIG structure (or NULL)
1029 */
1030ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **sig, const unsigned char **pp, long len);
1031
7236e3c8
DSH		 1032/** Accessor for r and s fields of ECDSA_SIG
1033 * \param sig pointer to ECDSA_SIG pointer
1034 * \param pr pointer to BIGNUM pointer for r (may be NULL)
1035 * \param ps pointer to BIGNUM pointer for s (may be NULL)
1036 */
1037void ECDSA_SIG_get0(BIGNUM **pr, BIGNUM **ps, ECDSA_SIG *sig);
1038
180eec16
DSH		 1039/** Computes the ECDSA signature of the given hash value using
1040 * the supplied private key and returns the created signature.
1041 * \param dgst pointer to the hash value
1042 * \param dgst_len length of the hash value
1043 * \param eckey EC_KEY object containing a private EC key
1044 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
1045 */
1046ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dgst_len,
1047 EC_KEY *eckey);
1048
1049/** Computes ECDSA signature of a given hash value using the supplied
1050 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
1051 * \param dgst pointer to the hash value to sign
1052 * \param dgstlen length of the hash value
1053 * \param kinv BIGNUM with a pre-computed inverse k (optional)
1054 * \param rp BIGNUM with a pre-computed rp value (optioanl),
1055 * see ECDSA_sign_setup
1056 * \param eckey EC_KEY object containing a private EC key
1057 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
1058 */
1059ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dgstlen,
1060 const BIGNUM *kinv, const BIGNUM *rp,
1061 EC_KEY *eckey);
1062
1063/** Verifies that the supplied signature is a valid ECDSA
1064 * signature of the supplied hash value using the supplied public key.
1065 * \param dgst pointer to the hash value
1066 * \param dgst_len length of the hash value
1067 * \param sig ECDSA_SIG structure
1068 * \param eckey EC_KEY object containing a public EC key
1069 * \return 1 if the signature is valid, 0 if the signature is invalid
1070 * and -1 on error
1071 */
1072int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
1073 const ECDSA_SIG *sig, EC_KEY *eckey);
1074
bd3602eb
DSH		 1075/** Precompute parts of the signing operation
1076 * \param eckey EC_KEY object containing a private EC key
1077 * \param ctx BN_CTX object (optional)
1078 * \param kinv BIGNUM pointer for the inverse of k
1079 * \param rp BIGNUM pointer for x coordinate of k * generator
1080 * \return 1 on success and 0 otherwise
1081 */
1082int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv, BIGNUM **rp);
1083
1084/** Computes ECDSA signature of a given hash value using the supplied
1085 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
1086 * \param type this parameter is ignored
1087 * \param dgst pointer to the hash value to sign
1088 * \param dgstlen length of the hash value
1089 * \param sig memory for the DER encoded created signature
1090 * \param siglen pointer to the length of the returned signature
1091 * \param eckey EC_KEY object containing a private EC key
1092 * \return 1 on success and 0 otherwise
1093 */
1094int ECDSA_sign(int type, const unsigned char *dgst, int dgstlen,
1095 unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
1096
1097/** Computes ECDSA signature of a given hash value using the supplied
1098 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
1099 * \param type this parameter is ignored
1100 * \param dgst pointer to the hash value to sign
1101 * \param dgstlen length of the hash value
1102 * \param sig buffer to hold the DER encoded signature
1103 * \param siglen pointer to the length of the returned signature
1104 * \param kinv BIGNUM with a pre-computed inverse k (optional)
1105 * \param rp BIGNUM with a pre-computed rp value (optioanl),
1106 * see ECDSA_sign_setup
1107 * \param eckey EC_KEY object containing a private EC key
1108 * \return 1 on success and 0 otherwise
1109 */
1110int ECDSA_sign_ex(int type, const unsigned char *dgst, int dgstlen,
1111 unsigned char *sig, unsigned int *siglen,
1112 const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey);
1113
1114/** Verifies that the given signature is valid ECDSA signature
1115 * of the supplied hash value using the specified public key.
1116 * \param type this parameter is ignored
1117 * \param dgst pointer to the hash value
1118 * \param dgstlen length of the hash value
1119 * \param sig pointer to the DER encoded signature
1120 * \param siglen length of the DER encoded signature
1121 * \param eckey EC_KEY object containing a public EC key
1122 * \return 1 if the signature is valid, 0 if the signature is invalid
1123 * and -1 on error
1124 */
1125int ECDSA_verify(int type, const unsigned char *dgst, int dgstlen,
1126 const unsigned char *sig, int siglen, EC_KEY *eckey);
7236e3c8 1127
cf517a6d
DSH		 1128/** Returns the maximum length of the DER encoded signature
1129 * \param eckey EC_KEY object
1130 * \return numbers of bytes required for the DER encoded signature
1131 */
1132int ECDSA_size(const EC_KEY *eckey);
1133
0f113f3e 1134# define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
458c2917 1135
0f113f3e
MC		 1136# ifndef __cplusplus
1137# if defined(__SUNPRO_C)
1138# if __SUNPRO_C >= 0x520
1139# pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
1140# endif
ad0db060
DSH		 1141# endif
1142# endif
ad0db060 1143
0f113f3e
MC		 1144# define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \
1145 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1146 EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \
1147 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL)
1148
1149# define EVP_PKEY_CTX_set_ec_param_enc(ctx, flag) \
1150 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1151 EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \
1152 EVP_PKEY_CTRL_EC_PARAM_ENC, flag, NULL)
1153
1154# define EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, flag) \
1155 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1156 EVP_PKEY_OP_DERIVE, \
1157 EVP_PKEY_CTRL_EC_ECDH_COFACTOR, flag, NULL)
1158
1159# define EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx) \
1160 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1161 EVP_PKEY_OP_DERIVE, \
1162 EVP_PKEY_CTRL_EC_ECDH_COFACTOR, -2, NULL)
1163
1164# define EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, kdf) \
1165 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1166 EVP_PKEY_OP_DERIVE, \
1167 EVP_PKEY_CTRL_EC_KDF_TYPE, kdf, NULL)
1168
1169# define EVP_PKEY_CTX_get_ecdh_kdf_type(ctx) \
1170 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1171 EVP_PKEY_OP_DERIVE, \
1172 EVP_PKEY_CTRL_EC_KDF_TYPE, -2, NULL)
1173
1174# define EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md) \
1175 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1176 EVP_PKEY_OP_DERIVE, \
1177 EVP_PKEY_CTRL_EC_KDF_MD, 0, (void *)md)
1178
1179# define EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, pmd) \
1180 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1181 EVP_PKEY_OP_DERIVE, \
1182 EVP_PKEY_CTRL_GET_EC_KDF_MD, 0, (void *)pmd)
1183
1184# define EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, len) \
1185 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1186 EVP_PKEY_OP_DERIVE, \
1187 EVP_PKEY_CTRL_EC_KDF_OUTLEN, len, NULL)
1188
1189# define EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, plen) \
1190 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1191 EVP_PKEY_OP_DERIVE, \
1192 EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN, 0, (void *)plen)
1193
1194# define EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p, plen) \
1195 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1196 EVP_PKEY_OP_DERIVE, \
1197 EVP_PKEY_CTRL_EC_KDF_UKM, plen, (void *)p)
1198
1199# define EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p) \
1200 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \
1201 EVP_PKEY_OP_DERIVE, \
1202 EVP_PKEY_CTRL_GET_EC_KDF_UKM, 0, (void *)p)
1203
1204# define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1)
1205# define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2)
1206# define EVP_PKEY_CTRL_EC_ECDH_COFACTOR (EVP_PKEY_ALG_CTRL + 3)
1207# define EVP_PKEY_CTRL_EC_KDF_TYPE (EVP_PKEY_ALG_CTRL + 4)
1208# define EVP_PKEY_CTRL_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 5)
1209# define EVP_PKEY_CTRL_GET_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 6)
1210# define EVP_PKEY_CTRL_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 7)
1211# define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8)
1212# define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9)
1213# define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10)
25af7a5d 1214/* KDF types */
0f113f3e
MC		 1215# define EVP_PKEY_ECDH_KDF_NONE 1
1216# define EVP_PKEY_ECDH_KDF_X9_62 2
9ca7047d 1217
65e81670 1218/* BEGIN ERROR CODES */
0f113f3e
MC		 1219/*
1220 * The following lines are auto generated by the script mkerr.pl. Any changes
65e81670
BM		 1221 * made after this point may be overwritten when the script is next run.
1222 */
de10f690 1223void ERR_load_EC_strings(void);
6cc5e19d 1224
65e81670 1225/* Error codes for the EC functions. */
6cc5e19d 1226
65e81670 1227/* Function codes. */
0f113f3e
MC		 1228# define EC_F_BN_TO_FELEM 224
1229# define EC_F_COMPUTE_WNAF 143
1230# define EC_F_D2I_ECPARAMETERS 144
1231# define EC_F_D2I_ECPKPARAMETERS 145
1232# define EC_F_D2I_ECPRIVATEKEY 146
1233# define EC_F_DO_EC_KEY_PRINT 221
1234# define EC_F_ECDH_CMS_DECRYPT 238
1235# define EC_F_ECDH_CMS_SET_SHARED_INFO 239
53e3189d 1236# define EC_F_ECDH_COMPUTE_KEY 246
6e73d12e
DSH		 1237# define EC_F_ECDSA_DO_SIGN_EX 251
1238# define EC_F_ECDSA_DO_VERIFY 252
8c661f76 1239# define EC_F_ECDSA_SIGN_SETUP 248
0f113f3e
MC		 1240# define EC_F_ECKEY_PARAM2TYPE 223
1241# define EC_F_ECKEY_PARAM_DECODE 212
1242# define EC_F_ECKEY_PRIV_DECODE 213
1243# define EC_F_ECKEY_PRIV_ENCODE 214
1244# define EC_F_ECKEY_PUB_DECODE 215
1245# define EC_F_ECKEY_PUB_ENCODE 216
1246# define EC_F_ECKEY_TYPE2PARAM 220
1247# define EC_F_ECPARAMETERS_PRINT 147
1248# define EC_F_ECPARAMETERS_PRINT_FP 148
1249# define EC_F_ECPKPARAMETERS_PRINT 149
1250# define EC_F_ECPKPARAMETERS_PRINT_FP 150
d2fa70d8
DSH		 1251# define EC_F_ECP_NISTZ256_GET_AFFINE 240
1252# define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE 243
1253# define EC_F_ECP_NISTZ256_POINTS_MUL 241
1254# define EC_F_ECP_NISTZ256_PRE_COMP_NEW 244
1255# define EC_F_ECP_NISTZ256_WINDOWED_MUL 242
0f113f3e
MC		 1256# define EC_F_ECP_NIST_MOD_192 203
1257# define EC_F_ECP_NIST_MOD_224 204
1258# define EC_F_ECP_NIST_MOD_256 205
1259# define EC_F_ECP_NIST_MOD_521 206
1260# define EC_F_EC_ASN1_GROUP2CURVE 153
1261# define EC_F_EC_ASN1_GROUP2FIELDID 154
1262# define EC_F_EC_ASN1_GROUP2PARAMETERS 155
1263# define EC_F_EC_ASN1_GROUP2PKPARAMETERS 156
1264# define EC_F_EC_ASN1_PARAMETERS2GROUP 157
1265# define EC_F_EC_ASN1_PKPARAMETERS2GROUP 158
1266# define EC_F_EC_EX_DATA_SET_DATA 211
1267# define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY 208
1268# define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 159
1269# define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE 195
1270# define EC_F_EC_GF2M_SIMPLE_OCT2POINT 160
1271# define EC_F_EC_GF2M_SIMPLE_POINT2OCT 161
1272# define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
1273# define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
1274# define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES 164
1275# define EC_F_EC_GFP_MONT_FIELD_DECODE 133
1276# define EC_F_EC_GFP_MONT_FIELD_ENCODE 134
1277# define EC_F_EC_GFP_MONT_FIELD_MUL 131
1278# define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE 209
1279# define EC_F_EC_GFP_MONT_FIELD_SQR 132
1280# define EC_F_EC_GFP_MONT_GROUP_SET_CURVE 189
1281# define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP 135
1282# define EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE 225
1283# define EC_F_EC_GFP_NISTP224_POINTS_MUL 228
1284# define EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES 226
1285# define EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE 230
1286# define EC_F_EC_GFP_NISTP256_POINTS_MUL 231
1287# define EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES 232
1288# define EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE 233
1289# define EC_F_EC_GFP_NISTP521_POINTS_MUL 234
1290# define EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES 235
1291# define EC_F_EC_GFP_NIST_FIELD_MUL 200
1292# define EC_F_EC_GFP_NIST_FIELD_SQR 201
1293# define EC_F_EC_GFP_NIST_GROUP_SET_CURVE 202
1294# define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 165
1295# define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE 166
1296# define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100
1297# define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101
1298# define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102
1299# define EC_F_EC_GFP_SIMPLE_OCT2POINT 103
1300# define EC_F_EC_GFP_SIMPLE_POINT2OCT 104
1301# define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137
1302# define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES 167
1303# define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
1304# define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES 168
1305# define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
1306# define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES 169
1307# define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
1308# define EC_F_EC_GROUP_CHECK 170
1309# define EC_F_EC_GROUP_CHECK_DISCRIMINANT 171
1310# define EC_F_EC_GROUP_COPY 106
1311# define EC_F_EC_GROUP_GET0_GENERATOR 139
1312# define EC_F_EC_GROUP_GET_COFACTOR 140
1313# define EC_F_EC_GROUP_GET_CURVE_GF2M 172
1314# define EC_F_EC_GROUP_GET_CURVE_GFP 130
1315# define EC_F_EC_GROUP_GET_DEGREE 173
1316# define EC_F_EC_GROUP_GET_ORDER 141
1317# define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193
1318# define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194
1319# define EC_F_EC_GROUP_NEW 108
1320# define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174
1321# define EC_F_EC_GROUP_NEW_FROM_DATA 175
1322# define EC_F_EC_GROUP_PRECOMPUTE_MULT 142
1323# define EC_F_EC_GROUP_SET_CURVE_GF2M 176
1324# define EC_F_EC_GROUP_SET_CURVE_GFP 109
1325# define EC_F_EC_GROUP_SET_EXTRA_DATA 110
1326# define EC_F_EC_GROUP_SET_GENERATOR 111
1327# define EC_F_EC_KEY_CHECK_KEY 177
1328# define EC_F_EC_KEY_COPY 178
1329# define EC_F_EC_KEY_GENERATE_KEY 179
1330# define EC_F_EC_KEY_NEW 182
d2fa70d8 1331# define EC_F_EC_KEY_NEW_METHOD 245
0f113f3e
MC		 1332# define EC_F_EC_KEY_PRINT 180
1333# define EC_F_EC_KEY_PRINT_FP 181
1334# define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES 229
1335# define EC_F_EC_POINTS_MAKE_AFFINE 136
1336# define EC_F_EC_POINT_ADD 112
1337# define EC_F_EC_POINT_CMP 113
1338# define EC_F_EC_POINT_COPY 114
1339# define EC_F_EC_POINT_DBL 115
1340# define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 183
1341# define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116
1342# define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117
1343# define EC_F_EC_POINT_INVERT 210
1344# define EC_F_EC_POINT_IS_AT_INFINITY 118
1345# define EC_F_EC_POINT_IS_ON_CURVE 119
1346# define EC_F_EC_POINT_MAKE_AFFINE 120
1347# define EC_F_EC_POINT_MUL 184
1348# define EC_F_EC_POINT_NEW 121
1349# define EC_F_EC_POINT_OCT2POINT 122
1350# define EC_F_EC_POINT_POINT2OCT 123
1351# define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 185
1352# define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124
1353# define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 186
1354# define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125
1355# define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126
1356# define EC_F_EC_POINT_SET_TO_INFINITY 127
1357# define EC_F_EC_PRE_COMP_DUP 207
1358# define EC_F_EC_PRE_COMP_NEW 196
1359# define EC_F_EC_WNAF_MUL 187
1360# define EC_F_EC_WNAF_PRECOMPUTE_MULT 188
1361# define EC_F_I2D_ECPARAMETERS 190
1362# define EC_F_I2D_ECPKPARAMETERS 191
1363# define EC_F_I2D_ECPRIVATEKEY 192
1364# define EC_F_I2O_ECPUBLICKEY 151
1365# define EC_F_NISTP224_PRE_COMP_NEW 227
1366# define EC_F_NISTP256_PRE_COMP_NEW 236
1367# define EC_F_NISTP521_PRE_COMP_NEW 237
0f113f3e
MC		 1368# define EC_F_O2I_ECPUBLICKEY 152
1369# define EC_F_OLD_EC_PRIV_DECODE 222
53e3189d 1370# define EC_F_OSSL_ECDH_COMPUTE_KEY 247
8c661f76
DSH		 1371# define EC_F_OSSL_ECDSA_SIGN_SIG 249
1372# define EC_F_OSSL_ECDSA_VERIFY_SIG 250
0f113f3e
MC		 1373# define EC_F_PKEY_EC_CTRL 197
1374# define EC_F_PKEY_EC_CTRL_STR 198
1375# define EC_F_PKEY_EC_DERIVE 217
1376# define EC_F_PKEY_EC_KEYGEN 199
1377# define EC_F_PKEY_EC_PARAMGEN 219
1378# define EC_F_PKEY_EC_SIGN 218
6cc5e19d 1379
65e81670 1380/* Reason codes. */
0f113f3e
MC		 1381# define EC_R_ASN1_ERROR 115
1382# define EC_R_ASN1_UNKNOWN_FIELD 116
8c661f76 1383# define EC_R_BAD_SIGNATURE 156
0f113f3e
MC		 1384# define EC_R_BIGNUM_OUT_OF_RANGE 144
1385# define EC_R_BUFFER_TOO_SMALL 100
1386# define EC_R_COORDINATES_OUT_OF_RANGE 146
1387# define EC_R_D2I_ECPKPARAMETERS_FAILURE 117
1388# define EC_R_DECODE_ERROR 142
1389# define EC_R_DISCRIMINANT_IS_ZERO 118
1390# define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 119
1391# define EC_R_FIELD_TOO_LARGE 143
1392# define EC_R_GF2M_NOT_SUPPORTED 147
1393# define EC_R_GROUP2PKPARAMETERS_FAILURE 120
1394# define EC_R_I2D_ECPKPARAMETERS_FAILURE 121
1395# define EC_R_INCOMPATIBLE_OBJECTS 101
1396# define EC_R_INVALID_ARGUMENT 112
1397# define EC_R_INVALID_COMPRESSED_POINT 110
1398# define EC_R_INVALID_COMPRESSION_BIT 109
1399# define EC_R_INVALID_CURVE 141
1400# define EC_R_INVALID_DIGEST 151
1401# define EC_R_INVALID_DIGEST_TYPE 138
1402# define EC_R_INVALID_ENCODING 102
1403# define EC_R_INVALID_FIELD 103
1404# define EC_R_INVALID_FORM 104
1405# define EC_R_INVALID_GROUP_ORDER 122
1406# define EC_R_INVALID_PENTANOMIAL_BASIS 132
1407# define EC_R_INVALID_PRIVATE_KEY 123
1408# define EC_R_INVALID_TRINOMIAL_BASIS 137
53e3189d 1409# define EC_R_KDF_FAILED 153
0f113f3e
MC		 1410# define EC_R_KDF_PARAMETER_ERROR 148
1411# define EC_R_KEYS_NOT_SET 140
1412# define EC_R_MISSING_PARAMETERS 124
1413# define EC_R_MISSING_PRIVATE_KEY 125
8c661f76 1414# define EC_R_NEED_NEW_SETUP_VALUES 157
0f113f3e
MC		 1415# define EC_R_NOT_A_NIST_PRIME 135
1416# define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136
1417# define EC_R_NOT_IMPLEMENTED 126
1418# define EC_R_NOT_INITIALIZED 111
1419# define EC_R_NO_FIELD_MOD 133
1420# define EC_R_NO_PARAMETERS_SET 139
53e3189d 1421# define EC_R_NO_PRIVATE_VALUE 154
5a6a1029 1422# define EC_R_OPERATION_NOT_SUPPORTED 152
0f113f3e
MC		 1423# define EC_R_PASSED_NULL_PARAMETER 134
1424# define EC_R_PEER_KEY_ERROR 149
1425# define EC_R_PKPARAMETERS2GROUP_FAILURE 127
53e3189d 1426# define EC_R_POINT_ARITHMETIC_FAILURE 155
0f113f3e
MC		 1427# define EC_R_POINT_AT_INFINITY 106
1428# define EC_R_POINT_IS_NOT_ON_CURVE 107
8c661f76 1429# define EC_R_RANDOM_NUMBER_GENERATION_FAILED 158
0f113f3e
MC		 1430# define EC_R_SHARED_INFO_ERROR 150
1431# define EC_R_SLOT_FULL 108
1432# define EC_R_UNDEFINED_GENERATOR 113
1433# define EC_R_UNDEFINED_ORDER 128
1434# define EC_R_UNKNOWN_GROUP 129
1435# define EC_R_UNKNOWN_ORDER 114
1436# define EC_R_UNSUPPORTED_FIELD 131
1437# define EC_R_WRONG_CURVE_PARAMETERS 145
1438# define EC_R_WRONG_ORDER 130
6cc5e19d 1439
65e81670
BM		 1440#ifdef __cplusplus
1441}
1442#endif
5acaa495 1443#endif
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