release/src/router/openssl/crypto/ec/ec.h

   1 /* crypto/ec/ec.h */
   2 /*
   3  * Originally written by Bodo Moeller for the OpenSSL project.
   4  */
   5 /**
   6  * \file crypto/ec/ec.h Include file for the OpenSSL EC functions
   7  * \author Originally written by Bodo Moeller for the OpenSSL project
   8  */
   9 /* ====================================================================
  10  * Copyright (c) 1998-2005 The OpenSSL Project.  All rights reserved.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  *
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  *
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in
  21  *    the documentation and/or other materials provided with the
  22  *    distribution.
  23  *
  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/)"
  28  *
  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.
  33  *
  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.
  37  *
  38  * 6. Redistributions of any form whatsoever must retain the following
  39  *    acknowledgment:
  40  *    "This product includes software developed by the OpenSSL Project
  41  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  42  *
  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  * ====================================================================
  56  *
  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).
  60  *
  61  */
  62 /* ====================================================================
  63  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  64  *
  65  * Portions of the attached software ("Contribution") are developed by
  66  * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
  67  *
  68  * The Contribution is licensed pursuant to the OpenSSL open source
  69  * license provided above.
  70  *
  71  * The elliptic curve binary polynomial software is originally written by
  72  * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
  73  *
  74  */
  75
  76 #ifndef HEADER_EC_H
  77 #define HEADER_EC_H
  78
  79 #include <openssl/opensslconf.h>
  80
  81 #ifdef OPENSSL_NO_EC
  82 #error EC is disabled.
  83 #endif
  84
  85 #include <openssl/asn1.h>
  86 #include <openssl/symhacks.h>
  87 #ifndef OPENSSL_NO_DEPRECATED
  88 #include <openssl/bn.h>
  89 #endif
  90
  91 #ifdef  __cplusplus
  92 extern "C" {
  93 #elif defined(__SUNPRO_C)
  94 # if __SUNPRO_C >= 0x520
  95 # pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
  96 # endif
  97 #endif
  98
  99
 100 #ifndef OPENSSL_ECC_MAX_FIELD_BITS
 101 # define OPENSSL_ECC_MAX_FIELD_BITS 661
 102 #endif
 103
 104 /** Enum for the point conversion form as defined in X9.62 (ECDSA)
 105  *  for the encoding of a elliptic curve point (x,y) */
 106 typedef enum {
 107         /** the point is encoded as z||x, where the octet z specifies
 108          *  which solution of the quadratic equation y is  */
 109         POINT_CONVERSION_COMPRESSED = 2,
 110         /** the point is encoded as z||x||y, where z is the octet 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;
 116
 117
 118 typedef struct ec_method_st EC_METHOD;
 119
 120 typedef struct ec_group_st
 121         /*
 122          EC_METHOD *meth;
 123          -- field definition
 124          -- curve coefficients
 125          -- optional generator with associated information (order, cofactor)
 126          -- optional extra data (precomputed table for fast computation of multiples of generator)
 127          -- ASN1 stuff
 128         */
 129         EC_GROUP;
 130
 131 typedef struct ec_point_st EC_POINT;
 132
 133
 134 /********************************************************************/
 135 /*               EC_METHODs for curves over GF(p)                   */
 136 /********************************************************************/
 137
 138 /** Returns the basic GFp ec methods which provides the basis for the
 139  *  optimized methods.
 140  *  \return  EC_METHOD object
 141  */
 142 const EC_METHOD *EC_GFp_simple_method(void);
 143
 144 /** Returns GFp methods using montgomery multiplication.
 145  *  \return  EC_METHOD object
 146  */
 147 const EC_METHOD *EC_GFp_mont_method(void);
 148
 149 /** Returns GFp methods using optimized methods for NIST recommended curves
 150  *  \return  EC_METHOD object
 151  */
 152 const EC_METHOD *EC_GFp_nist_method(void);
 153
 154 #ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
 155 /** Returns 64-bit optimized methods for nistp224
 156  *  \return  EC_METHOD object
 157  */
 158 const EC_METHOD *EC_GFp_nistp224_method(void);
 159
 160 /** Returns 64-bit optimized methods for nistp256
 161  *  \return  EC_METHOD object
 162  */
 163 const EC_METHOD *EC_GFp_nistp256_method(void);
 164
 165 /** Returns 64-bit optimized methods for nistp521
 166  *  \return  EC_METHOD object
 167  */
 168 const EC_METHOD *EC_GFp_nistp521_method(void);
 169 #endif
 170
 171 #ifndef OPENSSL_NO_EC2M
 172 /********************************************************************/
 173 /*           EC_METHOD for curves over GF(2^m)                      */
 174 /********************************************************************/
 175
 176 /** Returns the basic GF2m ec method
 177  *  \return  EC_METHOD object
 178  */
 179 const EC_METHOD *EC_GF2m_simple_method(void);
 180
 181 #endif
 182
 183
 184 /********************************************************************/
 185 /*                   EC_GROUP functions                             */
 186 /********************************************************************/
 187
 188 /** Creates a new EC_GROUP object
 189  *  \param   meth  EC_METHOD to use
 190  *  \return  newly created EC_GROUP object or NULL in case of an error.
 191  */
 192 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth);
 193
 194 /** Frees a EC_GROUP object
 195  *  \param  group  EC_GROUP object to be freed.
 196  */
 197 void EC_GROUP_free(EC_GROUP *group);
 198
 199 /** Clears and frees a EC_GROUP object
 200  *  \param  group  EC_GROUP object to be cleared and freed.
 201  */
 202 void EC_GROUP_clear_free(EC_GROUP *group);
 203
 204 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD.
 205  *  \param  dst  destination EC_GROUP object
 206  *  \param  src  source EC_GROUP object
 207  *  \return 1 on success and 0 if an error occurred.
 208  */
 209 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src);
 210
 211 /** Creates a new EC_GROUP object and copies the copies the content
 212  *  form src to the newly created EC_KEY object
 213  *  \param  src  source EC_GROUP object
 214  *  \return newly created EC_GROUP object or NULL in case of an error.
 215  */
 216 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);
 217
 218 /** Returns the EC_METHOD of the EC_GROUP object.
 219  *  \param  group  EC_GROUP object
 220  *  \return EC_METHOD used in this EC_GROUP object.
 221  */
 222 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);
 223
 224 /** Returns the field type of the EC_METHOD.
 225  *  \param  meth  EC_METHOD object
 226  *  \return NID of the underlying field type OID.
 227  */
 228 int EC_METHOD_get_field_type(const EC_METHOD *meth);
 229
 230 /** Sets the generator and it's order/cofactor of a EC_GROUP object.
 231  *  \param  group      EC_GROUP object
 232  *  \param  generator  EC_POINT object with the generator.
 233  *  \param  order      the order of the group generated by the generator.
 234  *  \param  cofactor   the index of the sub-group generated by the generator
 235  *                     in the group of all points on the elliptic curve.
 236  *  \return 1 on success and 0 if an error occured
 237  */
 238 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor);
 239
 240 /** Returns the generator of a EC_GROUP object.
 241  *  \param  group  EC_GROUP object
 242  *  \return the currently used generator (possibly NULL).
 243  */
 244 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
 245
 246 /** Gets the order of a EC_GROUP
 247  *  \param  group  EC_GROUP object
 248  *  \param  order  BIGNUM to which the order is copied
 249  *  \param  ctx    BN_CTX object (optional)
 250  *  \return 1 on success and 0 if an error occured
 251  */
 252 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
 253
 254 /** Gets the cofactor of a EC_GROUP
 255  *  \param  group     EC_GROUP object
 256  *  \param  cofactor  BIGNUM to which the cofactor is copied
 257  *  \param  ctx       BN_CTX object (optional)
 258  *  \return 1 on success and 0 if an error occured
 259  */
 260 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx);
 261
 262 /** Sets the name of a EC_GROUP object
 263  *  \param  group  EC_GROUP object
 264  *  \param  nid    NID of the curve name OID
 265  */
 266 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
 267
 268 /** Returns the curve name of a EC_GROUP object
 269  *  \param  group  EC_GROUP object
 270  *  \return NID of the curve name OID or 0 if not set.
 271  */
 272 int EC_GROUP_get_curve_name(const EC_GROUP *group);
 273
 274 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
 275 int EC_GROUP_get_asn1_flag(const EC_GROUP *group);
 276
 277 void EC_GROUP_set_point_conversion_form(EC_GROUP *, point_conversion_form_t);
 278 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
 279
 280 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *);
 281 size_t EC_GROUP_get_seed_len(const EC_GROUP *);
 282 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
 283
 284 /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b
 285  *  \param  group  EC_GROUP object
 286  *  \param  p      BIGNUM with the prime number
 287  *  \param  a      BIGNUM with parameter a of the equation
 288  *  \param  b      BIGNUM with parameter b of the equation
 289  *  \param  ctx    BN_CTX object (optional)
 290  *  \return 1 on success and 0 if an error occured
 291  */
 292 int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
 293
 294 /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b
 295  *  \param  group  EC_GROUP object
 296  *  \param  p      BIGNUM for the prime number
 297  *  \param  a      BIGNUM for parameter a of the equation
 298  *  \param  b      BIGNUM for parameter b of the equation
 299  *  \param  ctx    BN_CTX object (optional)
 300  *  \return 1 on success and 0 if an error occured
 301  */
 302 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
 303
 304 #ifndef OPENSSL_NO_EC2M
 305 /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
 306  *  \param  group  EC_GROUP object
 307  *  \param  p      BIGNUM with the polynomial defining the underlying field
 308  *  \param  a      BIGNUM with parameter a of the equation
 309  *  \param  b      BIGNUM with parameter b of the equation
 310  *  \param  ctx    BN_CTX object (optional)
 311  *  \return 1 on success and 0 if an error occured
 312  */
 313 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
 314
 315 /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
 316  *  \param  group  EC_GROUP object
 317  *  \param  p      BIGNUM for the polynomial defining the underlying field
 318  *  \param  a      BIGNUM for parameter a of the equation
 319  *  \param  b      BIGNUM for parameter b of the equation
 320  *  \param  ctx    BN_CTX object (optional)
 321  *  \return 1 on success and 0 if an error occured
 322  */
 323 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx);
 324 #endif
 325 /** Returns the number of bits needed to represent a field element
 326  *  \param  group  EC_GROUP object
 327  *  \return number of bits needed to represent a field element
 328  */
 329 int EC_GROUP_get_degree(const EC_GROUP *group);
 330
 331 /** Checks whether the parameter in the EC_GROUP define a valid ec group
 332  *  \param  group  EC_GROUP object
 333  *  \param  ctx    BN_CTX object (optional)
 334  *  \return 1 if group is a valid ec group and 0 otherwise
 335  */
 336 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
 337
 338 /** Checks whether the discriminant of the elliptic curve is zero or not
 339  *  \param  group  EC_GROUP object
 340  *  \param  ctx    BN_CTX object (optional)
 341  *  \return 1 if the discriminant is not zero and 0 otherwise
 342  */
 343 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);
 344
 345 /** Compares two EC_GROUP objects
 346  *  \param  a    first EC_GROUP object
 347  *  \param  b    second EC_GROUP object
 348  *  \param  ctx  BN_CTX object (optional)
 349  *  \return 0 if both groups are equal and 1 otherwise
 350  */
 351 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);
 352
 353 /* EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*()
 354  * after choosing an appropriate EC_METHOD */
 355
 356 /** Creates a new EC_GROUP object with the specified parameters defined
 357  *  over GFp (defined by the equation y^2 = x^3 + a*x + b)
 358  *  \param  p    BIGNUM with the prime number
 359  *  \param  a    BIGNUM with the parameter a of the equation
 360  *  \param  b    BIGNUM with the parameter b of the equation
 361  *  \param  ctx  BN_CTX object (optional)
 362  *  \return newly created EC_GROUP object with the specified parameters
 363  */
 364 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
 365 #ifndef OPENSSL_NO_EC2M
 366 /** Creates a new EC_GROUP object with the specified parameters defined
 367  *  over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
 368  *  \param  p    BIGNUM with the polynomial defining the underlying field
 369  *  \param  a    BIGNUM with the parameter a of the equation
 370  *  \param  b    BIGNUM with the parameter b of the equation
 371  *  \param  ctx  BN_CTX object (optional)
 372  *  \return newly created EC_GROUP object with the specified parameters
 373  */
 374 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
 375 #endif
 376 /** Creates a EC_GROUP object with a curve specified by a NID
 377  *  \param  nid  NID of the OID of the curve name
 378  *  \return newly created EC_GROUP object with specified curve or NULL
 379  *          if an error occurred
 380  */
 381 EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
 382
 383
 384 /********************************************************************/
 385 /*               handling of internal curves                        */
 386 /********************************************************************/
 387
 388 typedef struct {
 389         int nid;
 390         const char *comment;
 391         } EC_builtin_curve;
 392
 393 /* EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number
 394  * of all available curves or zero if a error occurred.
 395  * In case r ist not zero nitems EC_builtin_curve structures
 396  * are filled with the data of the first nitems internal groups */
 397 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
 398
 399
 400 /********************************************************************/
 401 /*                    EC_POINT functions                            */
 402 /********************************************************************/
 403
 404 /** Creates a new EC_POINT object for the specified EC_GROUP
 405  *  \param  group  EC_GROUP the underlying EC_GROUP object
 406  *  \return newly created EC_POINT object or NULL if an error occurred
 407  */
 408 EC_POINT *EC_POINT_new(const EC_GROUP *group);
 409
 410 /** Frees a EC_POINT object
 411  *  \param  point  EC_POINT object to be freed
 412  */
 413 void EC_POINT_free(EC_POINT *point);
 414
 415 /** Clears and frees a EC_POINT object
 416  *  \param  point  EC_POINT object to be cleared and freed
 417  */
 418 void EC_POINT_clear_free(EC_POINT *point);
 419
 420 /** Copies EC_POINT object
 421  *  \param  dst  destination EC_POINT object
 422  *  \param  src  source EC_POINT object
 423  *  \return 1 on success and 0 if an error occured
 424  */
 425 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);
 426
 427 /** Creates a new EC_POINT object and copies the content of the supplied
 428  *  EC_POINT
 429  *  \param  src    source EC_POINT object
 430  *  \param  group  underlying the EC_GROUP object
 431  *  \return newly created EC_POINT object or NULL if an error occurred
 432  */
 433 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);
 434
 435 /** Returns the EC_METHOD used in EC_POINT object
 436  *  \param  point  EC_POINT object
 437  *  \return the EC_METHOD used
 438  */
 439 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);
 440
 441 /** Sets a point to infinity (neutral element)
 442  *  \param  group  underlying EC_GROUP object
 443  *  \param  point  EC_POINT to set to infinity
 444  *  \return 1 on success and 0 if an error occured
 445  */
 446 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);
 447
 448 /** Sets the jacobian projective coordinates of a EC_POINT over GFp
 449  *  \param  group  underlying EC_GROUP object
 450  *  \param  p      EC_POINT object
 451  *  \param  x      BIGNUM with the x-coordinate
 452  *  \param  y      BIGNUM with the y-coordinate
 453  *  \param  z      BIGNUM with the z-coordinate
 454  *  \param  ctx    BN_CTX object (optional)
 455  *  \return 1 on success and 0 if an error occured
 456  */
 457 int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
 458         const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx);
 459
 460 /** Gets the jacobian projective coordinates of a EC_POINT over GFp
 461  *  \param  group  underlying EC_GROUP object
 462  *  \param  p      EC_POINT object
 463  *  \param  x      BIGNUM for the x-coordinate
 464  *  \param  y      BIGNUM for the y-coordinate
 465  *  \param  z      BIGNUM for the z-coordinate
 466  *  \param  ctx    BN_CTX object (optional)
 467  *  \return 1 on success and 0 if an error occured
 468  */
 469 int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group,
 470         const EC_POINT *p, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx);
 471
 472 /** Sets the affine coordinates of a EC_POINT over GFp
 473  *  \param  group  underlying EC_GROUP object
 474  *  \param  p      EC_POINT object
 475  *  \param  x      BIGNUM with the x-coordinate
 476  *  \param  y      BIGNUM with the y-coordinate
 477  *  \param  ctx    BN_CTX object (optional)
 478  *  \return 1 on success and 0 if an error occured
 479  */
 480 int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
 481         const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
 482
 483 /** Gets the affine coordinates of a EC_POINT over GFp
 484  *  \param  group  underlying EC_GROUP object
 485  *  \param  p      EC_POINT object
 486  *  \param  x      BIGNUM for the x-coordinate
 487  *  \param  y      BIGNUM for the y-coordinate
 488  *  \param  ctx    BN_CTX object (optional)
 489  *  \return 1 on success and 0 if an error occured
 490  */
 491 int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group,
 492         const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
 493
 494 /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp
 495  *  \param  group  underlying EC_GROUP object
 496  *  \param  p      EC_POINT object
 497  *  \param  x      BIGNUM with x-coordinate
 498  *  \param  y_bit  integer with the y-Bit (either 0 or 1)
 499  *  \param  ctx    BN_CTX object (optional)
 500  *  \return 1 on success and 0 if an error occured
 501  */
 502 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
 503         const BIGNUM *x, int y_bit, BN_CTX *ctx);
 504 #ifndef OPENSSL_NO_EC2M
 505 /** Sets the affine coordinates of a EC_POINT over GF2m
 506  *  \param  group  underlying EC_GROUP object
 507  *  \param  p      EC_POINT object
 508  *  \param  x      BIGNUM with the x-coordinate
 509  *  \param  y      BIGNUM with the y-coordinate
 510  *  \param  ctx    BN_CTX object (optional)
 511  *  \return 1 on success and 0 if an error occured
 512  */
 513 int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
 514         const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
 515
 516 /** Gets the affine coordinates of a EC_POINT over GF2m
 517  *  \param  group  underlying EC_GROUP object
 518  *  \param  p      EC_POINT object
 519  *  \param  x      BIGNUM for the x-coordinate
 520  *  \param  y      BIGNUM for the y-coordinate
 521  *  \param  ctx    BN_CTX object (optional)
 522  *  \return 1 on success and 0 if an error occured
 523  */
 524 int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group,
 525         const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
 526
 527 /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m
 528  *  \param  group  underlying EC_GROUP object
 529  *  \param  p      EC_POINT object
 530  *  \param  x      BIGNUM with x-coordinate
 531  *  \param  y_bit  integer with the y-Bit (either 0 or 1)
 532  *  \param  ctx    BN_CTX object (optional)
 533  *  \return 1 on success and 0 if an error occured
 534  */
 535 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
 536         const BIGNUM *x, int y_bit, BN_CTX *ctx);
 537 #endif
 538 /** Encodes a EC_POINT object to a octet string
 539  *  \param  group  underlying EC_GROUP object
 540  *  \param  p      EC_POINT object
 541  *  \param  form   point conversion form
 542  *  \param  buf    memory buffer for the result. If NULL the function returns
 543  *                 required buffer size.
 544  *  \param  len    length of the memory buffer
 545  *  \param  ctx    BN_CTX object (optional)
 546  *  \return the length of the encoded octet string or 0 if an error occurred
 547  */
 548 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
 549         point_conversion_form_t form,
 550         unsigned char *buf, size_t len, BN_CTX *ctx);
 551
 552 /** Decodes a EC_POINT from a octet string
 553  *  \param  group  underlying EC_GROUP object
 554  *  \param  p      EC_POINT object
 555  *  \param  buf    memory buffer with the encoded ec point
 556  *  \param  len    length of the encoded ec point
 557  *  \param  ctx    BN_CTX object (optional)
 558  *  \return 1 on success and 0 if an error occured
 559  */
 560 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
 561         const unsigned char *buf, size_t len, BN_CTX *ctx);
 562
 563 /* other interfaces to point2oct/oct2point: */
 564 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
 565         point_conversion_form_t form, BIGNUM *, BN_CTX *);
 566 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
 567         EC_POINT *, BN_CTX *);
 568 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
 569         point_conversion_form_t form, BN_CTX *);
 570 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
 571         EC_POINT *, BN_CTX *);
 572
 573
 574 /********************************************************************/
 575 /*         functions for doing EC_POINT arithmetic                  */
 576 /********************************************************************/
 577
 578 /** Computes the sum of two EC_POINT
 579  *  \param  group  underlying EC_GROUP object
 580  *  \param  r      EC_POINT object for the result (r = a + b)
 581  *  \param  a      EC_POINT object with the first summand
 582  *  \param  b      EC_POINT object with the second summand
 583  *  \param  ctx    BN_CTX object (optional)
 584  *  \return 1 on success and 0 if an error occured
 585  */
 586 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx);
 587
 588 /** Computes the double of a EC_POINT
 589  *  \param  group  underlying EC_GROUP object
 590  *  \param  r      EC_POINT object for the result (r = 2 * a)
 591  *  \param  a      EC_POINT object
 592  *  \param  ctx    BN_CTX object (optional)
 593  *  \return 1 on success and 0 if an error occured
 594  */
 595 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx);
 596
 597 /** Computes the inverse of a EC_POINT
 598  *  \param  group  underlying EC_GROUP object
 599  *  \param  a      EC_POINT object to be inverted (it's used for the result as well)
 600  *  \param  ctx    BN_CTX object (optional)
 601  *  \return 1 on success and 0 if an error occured
 602  */
 603 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);
 604
 605 /** Checks whether the point is the neutral element of the group
 606  *  \param  group  the underlying EC_GROUP object
 607  *  \param  p      EC_POINT object
 608  *  \return 1 if the point is the neutral element and 0 otherwise
 609  */
 610 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);
 611
 612 /** Checks whether the point is on the curve
 613  *  \param  group  underlying EC_GROUP object
 614  *  \param  point  EC_POINT object to check
 615  *  \param  ctx    BN_CTX object (optional)
 616  *  \return 1 if point if on the curve and 0 otherwise
 617  */
 618 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx);
 619
 620 /** Compares two EC_POINTs
 621  *  \param  group  underlying EC_GROUP object
 622  *  \param  a      first EC_POINT object
 623  *  \param  b      second EC_POINT object
 624  *  \param  ctx    BN_CTX object (optional)
 625  *  \return 0 if both points are equal and a value != 0 otherwise
 626  */
 627 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx);
 628
 629 int EC_POINT_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *);
 630 int EC_POINTs_make_affine(const EC_GROUP *, size_t num, EC_POINT *[], BN_CTX *);
 631
 632 /** Computes r = generator * n sum_{i=0}^num p[i] * m[i]
 633  *  \param  group  underlying EC_GROUP object
 634  *  \param  r      EC_POINT object for the result
 635  *  \param  n      BIGNUM with the multiplier for the group generator (optional)
 636  *  \param  num    number futher summands
 637  *  \param  p      array of size num of EC_POINT objects
 638  *  \param  m      array of size num of BIGNUM objects
 639  *  \param  ctx    BN_CTX object (optional)
 640  *  \return 1 on success and 0 if an error occured
 641  */
 642 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, size_t num, const EC_POINT *p[], const BIGNUM *m[], BN_CTX *ctx);
 643
 644 /** Computes r = generator * n + q * m
 645  *  \param  group  underlying EC_GROUP object
 646  *  \param  r      EC_POINT object for the result
 647  *  \param  n      BIGNUM with the multiplier for the group generator (optional)
 648  *  \param  q      EC_POINT object with the first factor of the second summand
 649  *  \param  m      BIGNUM with the second factor of the second summand
 650  *  \param  ctx    BN_CTX object (optional)
 651  *  \return 1 on success and 0 if an error occured
 652  */
 653 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);
 654
 655 /** Stores multiples of generator for faster point multiplication
 656  *  \param  group  EC_GROUP object
 657  *  \param  ctx    BN_CTX object (optional)
 658  *  \return 1 on success and 0 if an error occured
 659  */
 660 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
 661
 662 /** Reports whether a precomputation has been done
 663  *  \param  group  EC_GROUP object
 664  *  \return 1 if a pre-computation has been done and 0 otherwise
 665  */
 666 int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
 667
 668
 669 /********************************************************************/
 670 /*                       ASN1 stuff                                 */
 671 /********************************************************************/
 672
 673 /* EC_GROUP_get_basis_type() returns the NID of the basis type
 674  * used to represent the field elements */
 675 int EC_GROUP_get_basis_type(const EC_GROUP *);
 676 #ifndef OPENSSL_NO_EC2M
 677 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
 678 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
 679         unsigned int *k2, unsigned int *k3);
 680 #endif
 681
 682 #define OPENSSL_EC_NAMED_CURVE  0x001
 683
 684 typedef struct ecpk_parameters_st ECPKPARAMETERS;
 685
 686 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
 687 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
 688
 689 #define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
 690 #define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
 691 #define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
 692                 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
 693 #define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
 694                 (unsigned char *)(x))
 695
 696 #ifndef OPENSSL_NO_BIO
 697 int     ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
 698 #endif
 699 #ifndef OPENSSL_NO_FP_API
 700 int     ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
 701 #endif
 702
 703
 704 /********************************************************************/
 705 /*                      EC_KEY functions                            */
 706 /********************************************************************/
 707
 708 typedef struct ec_key_st EC_KEY;
 709
 710 /* some values for the encoding_flag */
 711 #define EC_PKEY_NO_PARAMETERS   0x001
 712 #define EC_PKEY_NO_PUBKEY       0x002
 713
 714 /* some values for the flags field */
 715 #define EC_FLAG_NON_FIPS_ALLOW  0x1
 716 #define EC_FLAG_FIPS_CHECKED    0x2
 717
 718 /** Creates a new EC_KEY object.
 719  *  \return EC_KEY object or NULL if an error occurred.
 720  */
 721 EC_KEY *EC_KEY_new(void);
 722
 723 int EC_KEY_get_flags(const EC_KEY *key);
 724
 725 void EC_KEY_set_flags(EC_KEY *key, int flags);
 726
 727 void EC_KEY_clear_flags(EC_KEY *key, int flags);
 728
 729 /** Creates a new EC_KEY object using a named curve as underlying
 730  *  EC_GROUP object.
 731  *  \param  nid  NID of the named curve.
 732  *  \return EC_KEY object or NULL if an error occurred.
 733  */
 734 EC_KEY *EC_KEY_new_by_curve_name(int nid);
 735
 736 /** Frees a EC_KEY object.
 737  *  \param  key  EC_KEY object to be freed.
 738  */
 739 void EC_KEY_free(EC_KEY *key);
 740
 741 /** Copies a EC_KEY object.
 742  *  \param  dst  destination EC_KEY object
 743  *  \param  src  src EC_KEY object
 744  *  \return dst or NULL if an error occurred.
 745  */
 746 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src);
 747
 748 /** Creates a new EC_KEY object and copies the content from src to it.
 749  *  \param  src  the source EC_KEY object
 750  *  \return newly created EC_KEY object or NULL if an error occurred.
 751  */
 752 EC_KEY *EC_KEY_dup(const EC_KEY *src);
 753
 754 /** Increases the internal reference count of a EC_KEY object.
 755  *  \param  key  EC_KEY object
 756  *  \return 1 on success and 0 if an error occurred.
 757  */
 758 int EC_KEY_up_ref(EC_KEY *key);
 759
 760 /** Returns the EC_GROUP object of a EC_KEY object
 761  *  \param  key  EC_KEY object
 762  *  \return the EC_GROUP object (possibly NULL).
 763  */
 764 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);
 765
 766 /** Sets the EC_GROUP of a EC_KEY object.
 767  *  \param  key    EC_KEY object
 768  *  \param  group  EC_GROUP to use in the EC_KEY object (note: the EC_KEY
 769  *                 object will use an own copy of the EC_GROUP).
 770  *  \return 1 on success and 0 if an error occurred.
 771  */
 772 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);
 773
 774 /** Returns the private key of a EC_KEY object.
 775  *  \param  key  EC_KEY object
 776  *  \return a BIGNUM with the private key (possibly NULL).
 777  */
 778 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);
 779
 780 /** Sets the private key of a EC_KEY object.
 781  *  \param  key  EC_KEY object
 782  *  \param  prv  BIGNUM with the private key (note: the EC_KEY object
 783  *               will use an own copy of the BIGNUM).
 784  *  \return 1 on success and 0 if an error occurred.
 785  */
 786 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);
 787
 788 /** Returns the public key of a EC_KEY object.
 789  *  \param  key  the EC_KEY object
 790  *  \return a EC_POINT object with the public key (possibly NULL)
 791  */
 792 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);
 793
 794 /** Sets the public key of a EC_KEY object.
 795  *  \param  key  EC_KEY object
 796  *  \param  pub  EC_POINT object with the public key (note: the EC_KEY object
 797  *               will use an own copy of the EC_POINT object).
 798  *  \return 1 on success and 0 if an error occurred.
 799  */
 800 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);
 801
 802 unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
 803 void EC_KEY_set_enc_flags(EC_KEY *, unsigned int);
 804 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *);
 805 void EC_KEY_set_conv_form(EC_KEY *, point_conversion_form_t);
 806 /* functions to set/get method specific data  */
 807 void *EC_KEY_get_key_method_data(EC_KEY *,
 808         void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
 809 void EC_KEY_insert_key_method_data(EC_KEY *, void *data,
 810         void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *));
 811 /* wrapper functions for the underlying EC_GROUP object */
 812 void EC_KEY_set_asn1_flag(EC_KEY *, int);
 813
 814 /** Creates a table of pre-computed multiples of the generator to
 815  *  accelerate further EC_KEY operations.
 816  *  \param  key  EC_KEY object
 817  *  \param  ctx  BN_CTX object (optional)
 818  *  \return 1 on success and 0 if an error occurred.
 819  */
 820 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);
 821
 822 /** Creates a new ec private (and optional a new public) key.
 823  *  \param  key  EC_KEY object
 824  *  \return 1 on success and 0 if an error occurred.
 825  */
 826 int EC_KEY_generate_key(EC_KEY *key);
 827
 828 /** Verifies that a private and/or public key is valid.
 829  *  \param  key  the EC_KEY object
 830  *  \return 1 on success and 0 otherwise.
 831  */
 832 int EC_KEY_check_key(const EC_KEY *key);
 833
 834 /** Sets a public key from affine coordindates performing
 835  *  neccessary NIST PKV tests.
 836  *  \param  key  the EC_KEY object
 837  *  \param  x    public key x coordinate
 838  *  \param  y    public key y coordinate
 839  *  \return 1 on success and 0 otherwise.
 840  */
 841 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x, BIGNUM *y);
 842
 843
 844 /********************************************************************/
 845 /*        de- and encoding functions for SEC1 ECPrivateKey          */
 846 /********************************************************************/
 847
 848 /** Decodes a private key from a memory buffer.
 849  *  \param  key  a pointer to a EC_KEY object which should be used (or NULL)
 850  *  \param  in   pointer to memory with the DER encoded private key
 851  *  \param  len  length of the DER encoded private key
 852  *  \return the decoded private key or NULL if an error occurred.
 853  */
 854 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len);
 855
 856 /** Encodes a private key object and stores the result in a buffer.
 857  *  \param  key  the EC_KEY object to encode
 858  *  \param  out  the buffer for the result (if NULL the function returns number
 859  *               of bytes needed).
 860  *  \return 1 on success and 0 if an error occurred.
 861  */
 862 int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out);
 863
 864
 865 /********************************************************************/
 866 /*        de- and encoding functions for EC parameters              */
 867 /********************************************************************/
 868
 869 /** Decodes ec parameter from a memory buffer.
 870  *  \param  key  a pointer to a EC_KEY object which should be used (or NULL)
 871  *  \param  in   pointer to memory with the DER encoded ec parameters
 872  *  \param  len  length of the DER encoded ec parameters
 873  *  \return a EC_KEY object with the decoded parameters or NULL if an error
 874  *          occurred.
 875  */
 876 EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len);
 877
 878 /** Encodes ec parameter and stores the result in a buffer.
 879  *  \param  key  the EC_KEY object with ec paramters to encode
 880  *  \param  out  the buffer for the result (if NULL the function returns number
 881  *               of bytes needed).
 882  *  \return 1 on success and 0 if an error occurred.
 883  */
 884 int i2d_ECParameters(EC_KEY *key, unsigned char **out);
 885
 886
 887 /********************************************************************/
 888 /*         de- and encoding functions for EC public key             */
 889 /*         (octet string, not DER -- hence 'o2i' and 'i2o')         */
 890 /********************************************************************/
 891
 892 /** Decodes a ec public key from a octet string.
 893  *  \param  key  a pointer to a EC_KEY object which should be used
 894  *  \param  in   memory buffer with the encoded public key
 895  *  \param  len  length of the encoded public key
 896  *  \return EC_KEY object with decoded public key or NULL if an error
 897  *          occurred.
 898  */
 899 EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len);
 900
 901 /** Encodes a ec public key in an octet string.
 902  *  \param  key  the EC_KEY object with the public key
 903  *  \param  out  the buffer for the result (if NULL the function returns number
 904  *               of bytes needed).
 905  *  \return 1 on success and 0 if an error occurred
 906  */
 907 int i2o_ECPublicKey(EC_KEY *key, unsigned char **out);
 908
 909 #ifndef OPENSSL_NO_BIO
 910 /** Prints out the ec parameters on human readable form.
 911  *  \param  bp   BIO object to which the information is printed
 912  *  \param  key  EC_KEY object
 913  *  \return 1 on success and 0 if an error occurred
 914  */
 915 int     ECParameters_print(BIO *bp, const EC_KEY *key);
 916
 917 /** Prints out the contents of a EC_KEY object
 918  *  \param  bp   BIO object to which the information is printed
 919  *  \param  key  EC_KEY object
 920  *  \param  off  line offset
 921  *  \return 1 on success and 0 if an error occurred
 922  */
 923 int     EC_KEY_print(BIO *bp, const EC_KEY *key, int off);
 924
 925 #endif
 926 #ifndef OPENSSL_NO_FP_API
 927 /** Prints out the ec parameters on human readable form.
 928  *  \param  fp   file descriptor to which the information is printed
 929  *  \param  key  EC_KEY object
 930  *  \return 1 on success and 0 if an error occurred
 931  */
 932 int     ECParameters_print_fp(FILE *fp, const EC_KEY *key);
 933
 934 /** Prints out the contents of a EC_KEY object
 935  *  \param  fp   file descriptor to which the information is printed
 936  *  \param  key  EC_KEY object
 937  *  \param  off  line offset
 938  *  \return 1 on success and 0 if an error occurred
 939  */
 940 int     EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
 941
 942 #endif
 943
 944 #define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
 945
 946 #ifndef __cplusplus
 947 #if defined(__SUNPRO_C)
 948 #  if __SUNPRO_C >= 0x520
 949 # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
 950 #  endif
 951 # endif
 952 #endif
 953
 954 #define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \
 955         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, EVP_PKEY_OP_PARAMGEN, \
 956                                 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL)
 957
 958
 959 #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID             (EVP_PKEY_ALG_CTRL + 1)
 960
 961 /* BEGIN ERROR CODES */
 962 /* The following lines are auto generated by the script mkerr.pl. Any changes
 963  * made after this point may be overwritten when the script is next run.
 964  */
 965 void ERR_load_EC_strings(void);
 966
 967 /* Error codes for the EC functions. */
 968
 969 /* Function codes. */
 970 #define EC_F_BN_TO_FELEM                                 224
 971 #define EC_F_COMPUTE_WNAF                                143
 972 #define EC_F_D2I_ECPARAMETERS                            144
 973 #define EC_F_D2I_ECPKPARAMETERS                          145
 974 #define EC_F_D2I_ECPRIVATEKEY                            146
 975 #define EC_F_DO_EC_KEY_PRINT                             221
 976 #define EC_F_ECKEY_PARAM2TYPE                            223
 977 #define EC_F_ECKEY_PARAM_DECODE                          212
 978 #define EC_F_ECKEY_PRIV_DECODE                           213
 979 #define EC_F_ECKEY_PRIV_ENCODE                           214
 980 #define EC_F_ECKEY_PUB_DECODE                            215
 981 #define EC_F_ECKEY_PUB_ENCODE                            216
 982 #define EC_F_ECKEY_TYPE2PARAM                            220
 983 #define EC_F_ECPARAMETERS_PRINT                          147
 984 #define EC_F_ECPARAMETERS_PRINT_FP                       148
 985 #define EC_F_ECPKPARAMETERS_PRINT                        149
 986 #define EC_F_ECPKPARAMETERS_PRINT_FP                     150
 987 #define EC_F_ECP_NIST_MOD_192                            203
 988 #define EC_F_ECP_NIST_MOD_224                            204
 989 #define EC_F_ECP_NIST_MOD_256                            205
 990 #define EC_F_ECP_NIST_MOD_521                            206
 991 #define EC_F_EC_ASN1_GROUP2CURVE                         153
 992 #define EC_F_EC_ASN1_GROUP2FIELDID                       154
 993 #define EC_F_EC_ASN1_GROUP2PARAMETERS                    155
 994 #define EC_F_EC_ASN1_GROUP2PKPARAMETERS                  156
 995 #define EC_F_EC_ASN1_PARAMETERS2GROUP                    157
 996 #define EC_F_EC_ASN1_PKPARAMETERS2GROUP                  158
 997 #define EC_F_EC_EX_DATA_SET_DATA                         211
 998 #define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY           208
 999 #define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT     159
1000 #define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE              195
1001 #define EC_F_EC_GF2M_SIMPLE_OCT2POINT                    160
1002 #define EC_F_EC_GF2M_SIMPLE_POINT2OCT                    161
1003 #define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
1004 #define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
1005 #define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES   164
1006 #define EC_F_EC_GFP_MONT_FIELD_DECODE                    133
1007 #define EC_F_EC_GFP_MONT_FIELD_ENCODE                    134
1008 #define EC_F_EC_GFP_MONT_FIELD_MUL                       131
1009 #define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE                209
1010 #define EC_F_EC_GFP_MONT_FIELD_SQR                       132
1011 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE                 189
1012 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP             135
1013 #define EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE             225
1014 #define EC_F_EC_GFP_NISTP224_POINTS_MUL                  228
1015 #define EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES 226
1016 #define EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE             230
1017 #define EC_F_EC_GFP_NISTP256_POINTS_MUL                  231
1018 #define EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES 232
1019 #define EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE             233
1020 #define EC_F_EC_GFP_NISTP521_POINTS_MUL                  234
1021 #define EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES 235
1022 #define EC_F_EC_GFP_NIST_FIELD_MUL                       200
1023 #define EC_F_EC_GFP_NIST_FIELD_SQR                       201
1024 #define EC_F_EC_GFP_NIST_GROUP_SET_CURVE                 202
1025 #define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT      165
1026 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE               166
1027 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP           100
1028 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR           101
1029 #define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE                   102
1030 #define EC_F_EC_GFP_SIMPLE_OCT2POINT                     103
1031 #define EC_F_EC_GFP_SIMPLE_POINT2OCT                     104
1032 #define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE            137
1033 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES  167
1034 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
1035 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES  168
1036 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
1037 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES    169
1038 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
1039 #define EC_F_EC_GROUP_CHECK                              170
1040 #define EC_F_EC_GROUP_CHECK_DISCRIMINANT                 171
1041 #define EC_F_EC_GROUP_COPY                               106
1042 #define EC_F_EC_GROUP_GET0_GENERATOR                     139
1043 #define EC_F_EC_GROUP_GET_COFACTOR                       140
1044 #define EC_F_EC_GROUP_GET_CURVE_GF2M                     172
1045 #define EC_F_EC_GROUP_GET_CURVE_GFP                      130
1046 #define EC_F_EC_GROUP_GET_DEGREE                         173
1047 #define EC_F_EC_GROUP_GET_ORDER                          141
1048 #define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS              193
1049 #define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS                194
1050 #define EC_F_EC_GROUP_NEW                                108
1051 #define EC_F_EC_GROUP_NEW_BY_CURVE_NAME                  174
1052 #define EC_F_EC_GROUP_NEW_FROM_DATA                      175
1053 #define EC_F_EC_GROUP_PRECOMPUTE_MULT                    142
1054 #define EC_F_EC_GROUP_SET_CURVE_GF2M                     176
1055 #define EC_F_EC_GROUP_SET_CURVE_GFP                      109
1056 #define EC_F_EC_GROUP_SET_EXTRA_DATA                     110
1057 #define EC_F_EC_GROUP_SET_GENERATOR                      111
1058 #define EC_F_EC_KEY_CHECK_KEY                            177
1059 #define EC_F_EC_KEY_COPY                                 178
1060 #define EC_F_EC_KEY_GENERATE_KEY                         179
1061 #define EC_F_EC_KEY_NEW                                  182
1062 #define EC_F_EC_KEY_PRINT                                180
1063 #define EC_F_EC_KEY_PRINT_FP                             181
1064 #define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES    229
1065 #define EC_F_EC_POINTS_MAKE_AFFINE                       136
1066 #define EC_F_EC_POINT_ADD                                112
1067 #define EC_F_EC_POINT_CMP                                113
1068 #define EC_F_EC_POINT_COPY                               114
1069 #define EC_F_EC_POINT_DBL                                115
1070 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M        183
1071 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP         116
1072 #define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP    117
1073 #define EC_F_EC_POINT_INVERT                             210
1074 #define EC_F_EC_POINT_IS_AT_INFINITY                     118
1075 #define EC_F_EC_POINT_IS_ON_CURVE                        119
1076 #define EC_F_EC_POINT_MAKE_AFFINE                        120
1077 #define EC_F_EC_POINT_MUL                                184
1078 #define EC_F_EC_POINT_NEW                                121
1079 #define EC_F_EC_POINT_OCT2POINT                          122
1080 #define EC_F_EC_POINT_POINT2OCT                          123
1081 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M        185
1082 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP         124
1083 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M    186
1084 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP     125
1085 #define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP    126
1086 #define EC_F_EC_POINT_SET_TO_INFINITY                    127
1087 #define EC_F_EC_PRE_COMP_DUP                             207
1088 #define EC_F_EC_PRE_COMP_NEW                             196
1089 #define EC_F_EC_WNAF_MUL                                 187
1090 #define EC_F_EC_WNAF_PRECOMPUTE_MULT                     188
1091 #define EC_F_I2D_ECPARAMETERS                            190
1092 #define EC_F_I2D_ECPKPARAMETERS                          191
1093 #define EC_F_I2D_ECPRIVATEKEY                            192
1094 #define EC_F_I2O_ECPUBLICKEY                             151
1095 #define EC_F_NISTP224_PRE_COMP_NEW                       227
1096 #define EC_F_NISTP256_PRE_COMP_NEW                       236
1097 #define EC_F_NISTP521_PRE_COMP_NEW                       237
1098 #define EC_F_O2I_ECPUBLICKEY                             152
1099 #define EC_F_OLD_EC_PRIV_DECODE                          222
1100 #define EC_F_PKEY_EC_CTRL                                197
1101 #define EC_F_PKEY_EC_CTRL_STR                            198
1102 #define EC_F_PKEY_EC_DERIVE                              217
1103 #define EC_F_PKEY_EC_KEYGEN                              199
1104 #define EC_F_PKEY_EC_PARAMGEN                            219
1105 #define EC_F_PKEY_EC_SIGN                                218
1106
1107 /* Reason codes. */
1108 #define EC_R_ASN1_ERROR                                  115
1109 #define EC_R_ASN1_UNKNOWN_FIELD                          116
1110 #define EC_R_BIGNUM_OUT_OF_RANGE                         144
1111 #define EC_R_BUFFER_TOO_SMALL                            100
1112 #define EC_R_COORDINATES_OUT_OF_RANGE                    146
1113 #define EC_R_D2I_ECPKPARAMETERS_FAILURE                  117
1114 #define EC_R_DECODE_ERROR                                142
1115 #define EC_R_DISCRIMINANT_IS_ZERO                        118
1116 #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE                119
1117 #define EC_R_FIELD_TOO_LARGE                             143
1118 #define EC_R_GF2M_NOT_SUPPORTED                          147
1119 #define EC_R_GROUP2PKPARAMETERS_FAILURE                  120
1120 #define EC_R_I2D_ECPKPARAMETERS_FAILURE                  121
1121 #define EC_R_INCOMPATIBLE_OBJECTS                        101
1122 #define EC_R_INVALID_ARGUMENT                            112
1123 #define EC_R_INVALID_COMPRESSED_POINT                    110
1124 #define EC_R_INVALID_COMPRESSION_BIT                     109
1125 #define EC_R_INVALID_CURVE                               141
1126 #define EC_R_INVALID_DIGEST_TYPE                         138
1127 #define EC_R_INVALID_ENCODING                            102
1128 #define EC_R_INVALID_FIELD                               103
1129 #define EC_R_INVALID_FORM                                104
1130 #define EC_R_INVALID_GROUP_ORDER                         122
1131 #define EC_R_INVALID_PENTANOMIAL_BASIS                   132
1132 #define EC_R_INVALID_PRIVATE_KEY                         123
1133 #define EC_R_INVALID_TRINOMIAL_BASIS                     137
1134 #define EC_R_KEYS_NOT_SET                                140
1135 #define EC_R_MISSING_PARAMETERS                          124
1136 #define EC_R_MISSING_PRIVATE_KEY                         125
1137 #define EC_R_NOT_A_NIST_PRIME                            135
1138 #define EC_R_NOT_A_SUPPORTED_NIST_PRIME                  136
1139 #define EC_R_NOT_IMPLEMENTED                             126
1140 #define EC_R_NOT_INITIALIZED                             111
1141 #define EC_R_NO_FIELD_MOD                                133
1142 #define EC_R_NO_PARAMETERS_SET                           139
1143 #define EC_R_PASSED_NULL_PARAMETER                       134
1144 #define EC_R_PKPARAMETERS2GROUP_FAILURE                  127
1145 #define EC_R_POINT_AT_INFINITY                           106
1146 #define EC_R_POINT_IS_NOT_ON_CURVE                       107
1147 #define EC_R_SLOT_FULL                                   108
1148 #define EC_R_UNDEFINED_GENERATOR                         113
1149 #define EC_R_UNDEFINED_ORDER                             128
1150 #define EC_R_UNKNOWN_GROUP                               129
1151 #define EC_R_UNKNOWN_ORDER                               114
1152 #define EC_R_UNSUPPORTED_FIELD                           131
1153 #define EC_R_WRONG_CURVE_PARAMETERS                      145
1154 #define EC_R_WRONG_ORDER                                 130
1155
1156 #ifdef  __cplusplus
1157 }
1158 #endif
1159 #endif