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 # ifndef OPENSSL_ECC_MAX_FIELD_BITS
 100 #  define OPENSSL_ECC_MAX_FIELD_BITS 661
 101 # endif
 102
 103 /** Enum for the point conversion form as defined in X9.62 (ECDSA)
 104  *  for the encoding of a elliptic curve point (x,y) */
 105 typedef enum {
 106         /** the point is encoded as z||x, where the octet z specifies
 107          *  which solution of the quadratic equation y is  */
 108     POINT_CONVERSION_COMPRESSED = 2,
 109         /** the point is encoded as z||x||y, where z is the octet 0x02  */
 110     POINT_CONVERSION_UNCOMPRESSED = 4,
 111         /** the point is encoded as z||x||y, where the octet z specifies
 112          *  which solution of the quadratic equation y is  */
 113     POINT_CONVERSION_HYBRID = 6
 114 } point_conversion_form_t;
 115
 116 typedef struct ec_method_st EC_METHOD;
 117
 118 typedef struct ec_group_st
 119     /*-
 120      EC_METHOD *meth;
 121      -- field definition
 122      -- curve coefficients
 123      -- optional generator with associated information (order, cofactor)
 124      -- optional extra data (precomputed table for fast computation of multiples of generator)
 125      -- ASN1 stuff
 126     */
 127     EC_GROUP;
 128
 129 typedef struct ec_point_st EC_POINT;
 130
 131 /********************************************************************/
 132 /*               EC_METHODs for curves over GF(p)                   */
 133 /********************************************************************/
 134
 135 /** Returns the basic GFp ec methods which provides the basis for the
 136  *  optimized methods.
 137  *  \return  EC_METHOD object
 138  */
 139 const EC_METHOD *EC_GFp_simple_method(void);
 140
 141 /** Returns GFp methods using montgomery multiplication.
 142  *  \return  EC_METHOD object
 143  */
 144 const EC_METHOD *EC_GFp_mont_method(void);
 145
 146 /** Returns GFp methods using optimized methods for NIST recommended curves
 147  *  \return  EC_METHOD object
 148  */
 149 const EC_METHOD *EC_GFp_nist_method(void);
 150
 151 # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
 152 /** Returns 64-bit optimized methods for nistp224
 153  *  \return  EC_METHOD object
 154  */
 155 const EC_METHOD *EC_GFp_nistp224_method(void);
 156
 157 /** Returns 64-bit optimized methods for nistp256
 158  *  \return  EC_METHOD object
 159  */
 160 const EC_METHOD *EC_GFp_nistp256_method(void);
 161
 162 /** Returns 64-bit optimized methods for nistp521
 163  *  \return  EC_METHOD object
 164  */
 165 const EC_METHOD *EC_GFp_nistp521_method(void);
 166 # endif
 167
 168 # ifndef OPENSSL_NO_EC2M
 169 /********************************************************************/
 170 /*           EC_METHOD for curves over GF(2^m)                      */
 171 /********************************************************************/
 172
 173 /** Returns the basic GF2m ec method
 174  *  \return  EC_METHOD object
 175  */
 176 const EC_METHOD *EC_GF2m_simple_method(void);
 177
 178 # endif
 179
 180 /********************************************************************/
 181 /*                   EC_GROUP functions                             */
 182 /********************************************************************/
 183
 184 /** Creates a new EC_GROUP object
 185  *  \param   meth  EC_METHOD to use
 186  *  \return  newly created EC_GROUP object or NULL in case of an error.
 187  */
 188 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth);
 189
 190 /** Frees a EC_GROUP object
 191  *  \param  group  EC_GROUP object to be freed.
 192  */
 193 void EC_GROUP_free(EC_GROUP *group);
 194
 195 /** Clears and frees a EC_GROUP object
 196  *  \param  group  EC_GROUP object to be cleared and freed.
 197  */
 198 void EC_GROUP_clear_free(EC_GROUP *group);
 199
 200 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD.
 201  *  \param  dst  destination EC_GROUP object
 202  *  \param  src  source EC_GROUP object
 203  *  \return 1 on success and 0 if an error occurred.
 204  */
 205 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src);
 206
 207 /** Creates a new EC_GROUP object and copies the copies the content
 208  *  form src to the newly created EC_KEY object
 209  *  \param  src  source EC_GROUP object
 210  *  \return newly created EC_GROUP object or NULL in case of an error.
 211  */
 212 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);
 213
 214 /** Returns the EC_METHOD of the EC_GROUP object.
 215  *  \param  group  EC_GROUP object
 216  *  \return EC_METHOD used in this EC_GROUP object.
 217  */
 218 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);
 219
 220 /** Returns the field type of the EC_METHOD.
 221  *  \param  meth  EC_METHOD object
 222  *  \return NID of the underlying field type OID.
 223  */
 224 int EC_METHOD_get_field_type(const EC_METHOD *meth);
 225
 226 /** Sets the generator and it's order/cofactor of a EC_GROUP object.
 227  *  \param  group      EC_GROUP object
 228  *  \param  generator  EC_POINT object with the generator.
 229  *  \param  order      the order of the group generated by the generator.
 230  *  \param  cofactor   the index of the sub-group generated by the generator
 231  *                     in the group of all points on the elliptic curve.
 232  *  \return 1 on success and 0 if an error occured
 233  */
 234 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator,
 235                            const BIGNUM *order, const BIGNUM *cofactor);
 236
 237 /** Returns the generator of a EC_GROUP object.
 238  *  \param  group  EC_GROUP object
 239  *  \return the currently used generator (possibly NULL).
 240  */
 241 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
 242
 243 /** Gets the order of a EC_GROUP
 244  *  \param  group  EC_GROUP object
 245  *  \param  order  BIGNUM to which the order is copied
 246  *  \param  ctx    BN_CTX object (optional)
 247  *  \return 1 on success and 0 if an error occured
 248  */
 249 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
 250
 251 /** Gets the cofactor of a EC_GROUP
 252  *  \param  group     EC_GROUP object
 253  *  \param  cofactor  BIGNUM to which the cofactor is copied
 254  *  \param  ctx       BN_CTX object (optional)
 255  *  \return 1 on success and 0 if an error occured
 256  */
 257 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,
 258                           BN_CTX *ctx);
 259
 260 /** Sets the name of a EC_GROUP object
 261  *  \param  group  EC_GROUP object
 262  *  \param  nid    NID of the curve name OID
 263  */
 264 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
 265
 266 /** Returns the curve name of a EC_GROUP object
 267  *  \param  group  EC_GROUP object
 268  *  \return NID of the curve name OID or 0 if not set.
 269  */
 270 int EC_GROUP_get_curve_name(const EC_GROUP *group);
 271
 272 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
 273 int EC_GROUP_get_asn1_flag(const EC_GROUP *group);
 274
 275 void EC_GROUP_set_point_conversion_form(EC_GROUP *group,
 276                                         point_conversion_form_t form);
 277 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
 278
 279 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x);
 280 size_t EC_GROUP_get_seed_len(const EC_GROUP *);
 281 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
 282
 283 /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b
 284  *  \param  group  EC_GROUP object
 285  *  \param  p      BIGNUM with the prime number
 286  *  \param  a      BIGNUM with parameter a of the equation
 287  *  \param  b      BIGNUM with parameter b of the equation
 288  *  \param  ctx    BN_CTX object (optional)
 289  *  \return 1 on success and 0 if an error occured
 290  */
 291 int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
 292                            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,
 303                            BIGNUM *b, BN_CTX *ctx);
 304
 305 # ifndef OPENSSL_NO_EC2M
 306 /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
 307  *  \param  group  EC_GROUP object
 308  *  \param  p      BIGNUM with the polynomial defining the underlying field
 309  *  \param  a      BIGNUM with parameter a of the equation
 310  *  \param  b      BIGNUM with parameter b of the equation
 311  *  \param  ctx    BN_CTX object (optional)
 312  *  \return 1 on success and 0 if an error occured
 313  */
 314 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
 315                             const BIGNUM *b, BN_CTX *ctx);
 316
 317 /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b
 318  *  \param  group  EC_GROUP object
 319  *  \param  p      BIGNUM for the polynomial defining the underlying field
 320  *  \param  a      BIGNUM for parameter a of the equation
 321  *  \param  b      BIGNUM for parameter b of the equation
 322  *  \param  ctx    BN_CTX object (optional)
 323  *  \return 1 on success and 0 if an error occured
 324  */
 325 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a,
 326                             BIGNUM *b, BN_CTX *ctx);
 327 # endif
 328 /** Returns the number of bits needed to represent a field element
 329  *  \param  group  EC_GROUP object
 330  *  \return number of bits needed to represent a field element
 331  */
 332 int EC_GROUP_get_degree(const EC_GROUP *group);
 333
 334 /** Checks whether the parameter in the EC_GROUP define a valid ec group
 335  *  \param  group  EC_GROUP object
 336  *  \param  ctx    BN_CTX object (optional)
 337  *  \return 1 if group is a valid ec group and 0 otherwise
 338  */
 339 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
 340
 341 /** Checks whether the discriminant of the elliptic curve is zero or not
 342  *  \param  group  EC_GROUP object
 343  *  \param  ctx    BN_CTX object (optional)
 344  *  \return 1 if the discriminant is not zero and 0 otherwise
 345  */
 346 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);
 347
 348 /** Compares two EC_GROUP objects
 349  *  \param  a    first EC_GROUP object
 350  *  \param  b    second EC_GROUP object
 351  *  \param  ctx  BN_CTX object (optional)
 352  *  \return 0 if both groups are equal and 1 otherwise
 353  */
 354 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);
 355
 356 /*
 357  * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after
 358  * choosing an appropriate EC_METHOD
 359  */
 360
 361 /** Creates a new EC_GROUP object with the specified parameters defined
 362  *  over GFp (defined by the equation y^2 = x^3 + a*x + b)
 363  *  \param  p    BIGNUM with the prime number
 364  *  \param  a    BIGNUM with the parameter a of the equation
 365  *  \param  b    BIGNUM with the parameter b of the equation
 366  *  \param  ctx  BN_CTX object (optional)
 367  *  \return newly created EC_GROUP object with the specified parameters
 368  */
 369 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a,
 370                                  const BIGNUM *b, BN_CTX *ctx);
 371 # ifndef OPENSSL_NO_EC2M
 372 /** Creates a new EC_GROUP object with the specified parameters defined
 373  *  over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
 374  *  \param  p    BIGNUM with the polynomial defining the underlying field
 375  *  \param  a    BIGNUM with the parameter a of the equation
 376  *  \param  b    BIGNUM with the parameter b of the equation
 377  *  \param  ctx  BN_CTX object (optional)
 378  *  \return newly created EC_GROUP object with the specified parameters
 379  */
 380 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a,
 381                                   const BIGNUM *b, BN_CTX *ctx);
 382 # endif
 383 /** Creates a EC_GROUP object with a curve specified by a NID
 384  *  \param  nid  NID of the OID of the curve name
 385  *  \return newly created EC_GROUP object with specified curve or NULL
 386  *          if an error occurred
 387  */
 388 EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
 389
 390 /********************************************************************/
 391 /*               handling of internal curves                        */
 392 /********************************************************************/
 393
 394 typedef struct {
 395     int nid;
 396     const char *comment;
 397 } EC_builtin_curve;
 398
 399 /*
 400  * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all
 401  * available curves or zero if a error occurred. In case r ist not zero
 402  * nitems EC_builtin_curve structures are filled with the data of the first
 403  * nitems internal groups
 404  */
 405 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
 406
 407 /********************************************************************/
 408 /*                    EC_POINT functions                            */
 409 /********************************************************************/
 410
 411 /** Creates a new EC_POINT object for the specified EC_GROUP
 412  *  \param  group  EC_GROUP the underlying EC_GROUP object
 413  *  \return newly created EC_POINT object or NULL if an error occurred
 414  */
 415 EC_POINT *EC_POINT_new(const EC_GROUP *group);
 416
 417 /** Frees a EC_POINT object
 418  *  \param  point  EC_POINT object to be freed
 419  */
 420 void EC_POINT_free(EC_POINT *point);
 421
 422 /** Clears and frees a EC_POINT object
 423  *  \param  point  EC_POINT object to be cleared and freed
 424  */
 425 void EC_POINT_clear_free(EC_POINT *point);
 426
 427 /** Copies EC_POINT object
 428  *  \param  dst  destination EC_POINT object
 429  *  \param  src  source EC_POINT object
 430  *  \return 1 on success and 0 if an error occured
 431  */
 432 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);
 433
 434 /** Creates a new EC_POINT object and copies the content of the supplied
 435  *  EC_POINT
 436  *  \param  src    source EC_POINT object
 437  *  \param  group  underlying the EC_GROUP object
 438  *  \return newly created EC_POINT object or NULL if an error occurred
 439  */
 440 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);
 441
 442 /** Returns the EC_METHOD used in EC_POINT object
 443  *  \param  point  EC_POINT object
 444  *  \return the EC_METHOD used
 445  */
 446 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);
 447
 448 /** Sets a point to infinity (neutral element)
 449  *  \param  group  underlying EC_GROUP object
 450  *  \param  point  EC_POINT to set to infinity
 451  *  \return 1 on success and 0 if an error occured
 452  */
 453 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);
 454
 455 /** Sets the jacobian projective coordinates of a EC_POINT over GFp
 456  *  \param  group  underlying EC_GROUP object
 457  *  \param  p      EC_POINT object
 458  *  \param  x      BIGNUM with the x-coordinate
 459  *  \param  y      BIGNUM with the y-coordinate
 460  *  \param  z      BIGNUM with the z-coordinate
 461  *  \param  ctx    BN_CTX object (optional)
 462  *  \return 1 on success and 0 if an error occured
 463  */
 464 int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group,
 465                                              EC_POINT *p, const BIGNUM *x,
 466                                              const BIGNUM *y, const BIGNUM *z,
 467                                              BN_CTX *ctx);
 468
 469 /** Gets the jacobian projective coordinates of a EC_POINT over GFp
 470  *  \param  group  underlying EC_GROUP object
 471  *  \param  p      EC_POINT object
 472  *  \param  x      BIGNUM for the x-coordinate
 473  *  \param  y      BIGNUM for the y-coordinate
 474  *  \param  z      BIGNUM for the z-coordinate
 475  *  \param  ctx    BN_CTX object (optional)
 476  *  \return 1 on success and 0 if an error occured
 477  */
 478 int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group,
 479                                              const EC_POINT *p, BIGNUM *x,
 480                                              BIGNUM *y, BIGNUM *z,
 481                                              BN_CTX *ctx);
 482
 483 /** Sets 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 with the x-coordinate
 487  *  \param  y      BIGNUM with 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_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p,
 492                                         const BIGNUM *x, const BIGNUM *y,
 493                                         BN_CTX *ctx);
 494
 495 /** Gets 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 for the x-coordinate
 499  *  \param  y      BIGNUM for the y-coordinate
 500  *  \param  ctx    BN_CTX object (optional)
 501  *  \return 1 on success and 0 if an error occured
 502  */
 503 int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group,
 504                                         const EC_POINT *p, BIGNUM *x,
 505                                         BIGNUM *y, BN_CTX *ctx);
 506
 507 /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp
 508  *  \param  group  underlying EC_GROUP object
 509  *  \param  p      EC_POINT object
 510  *  \param  x      BIGNUM with x-coordinate
 511  *  \param  y_bit  integer with the y-Bit (either 0 or 1)
 512  *  \param  ctx    BN_CTX object (optional)
 513  *  \return 1 on success and 0 if an error occured
 514  */
 515 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group,
 516                                             EC_POINT *p, const BIGNUM *x,
 517                                             int y_bit, BN_CTX *ctx);
 518 # ifndef OPENSSL_NO_EC2M
 519 /** Sets the affine coordinates of a EC_POINT over GF2m
 520  *  \param  group  underlying EC_GROUP object
 521  *  \param  p      EC_POINT object
 522  *  \param  x      BIGNUM with the x-coordinate
 523  *  \param  y      BIGNUM with the y-coordinate
 524  *  \param  ctx    BN_CTX object (optional)
 525  *  \return 1 on success and 0 if an error occured
 526  */
 527 int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p,
 528                                          const BIGNUM *x, const BIGNUM *y,
 529                                          BN_CTX *ctx);
 530
 531 /** Gets 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 for the x-coordinate
 535  *  \param  y      BIGNUM for the y-coordinate
 536  *  \param  ctx    BN_CTX object (optional)
 537  *  \return 1 on success and 0 if an error occured
 538  */
 539 int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group,
 540                                          const EC_POINT *p, BIGNUM *x,
 541                                          BIGNUM *y, BN_CTX *ctx);
 542
 543 /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m
 544  *  \param  group  underlying EC_GROUP object
 545  *  \param  p      EC_POINT object
 546  *  \param  x      BIGNUM with x-coordinate
 547  *  \param  y_bit  integer with the y-Bit (either 0 or 1)
 548  *  \param  ctx    BN_CTX object (optional)
 549  *  \return 1 on success and 0 if an error occured
 550  */
 551 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,
 552                                              EC_POINT *p, const BIGNUM *x,
 553                                              int y_bit, BN_CTX *ctx);
 554 # endif
 555 /** Encodes a EC_POINT object to a octet string
 556  *  \param  group  underlying EC_GROUP object
 557  *  \param  p      EC_POINT object
 558  *  \param  form   point conversion form
 559  *  \param  buf    memory buffer for the result. If NULL the function returns
 560  *                 required buffer size.
 561  *  \param  len    length of the memory buffer
 562  *  \param  ctx    BN_CTX object (optional)
 563  *  \return the length of the encoded octet string or 0 if an error occurred
 564  */
 565 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
 566                           point_conversion_form_t form,
 567                           unsigned char *buf, size_t len, BN_CTX *ctx);
 568
 569 /** Decodes a EC_POINT from a octet string
 570  *  \param  group  underlying EC_GROUP object
 571  *  \param  p      EC_POINT object
 572  *  \param  buf    memory buffer with the encoded ec point
 573  *  \param  len    length of the encoded ec point
 574  *  \param  ctx    BN_CTX object (optional)
 575  *  \return 1 on success and 0 if an error occured
 576  */
 577 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
 578                        const unsigned char *buf, size_t len, BN_CTX *ctx);
 579
 580 /* other interfaces to point2oct/oct2point: */
 581 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
 582                           point_conversion_form_t form, BIGNUM *, BN_CTX *);
 583 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
 584                             EC_POINT *, BN_CTX *);
 585 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
 586                          point_conversion_form_t form, BN_CTX *);
 587 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
 588                              EC_POINT *, BN_CTX *);
 589
 590 /********************************************************************/
 591 /*         functions for doing EC_POINT arithmetic                  */
 592 /********************************************************************/
 593
 594 /** Computes the sum of two EC_POINT
 595  *  \param  group  underlying EC_GROUP object
 596  *  \param  r      EC_POINT object for the result (r = a + b)
 597  *  \param  a      EC_POINT object with the first summand
 598  *  \param  b      EC_POINT object with the second summand
 599  *  \param  ctx    BN_CTX object (optional)
 600  *  \return 1 on success and 0 if an error occured
 601  */
 602 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
 603                  const EC_POINT *b, BN_CTX *ctx);
 604
 605 /** Computes the double of a EC_POINT
 606  *  \param  group  underlying EC_GROUP object
 607  *  \param  r      EC_POINT object for the result (r = 2 * a)
 608  *  \param  a      EC_POINT object
 609  *  \param  ctx    BN_CTX object (optional)
 610  *  \return 1 on success and 0 if an error occured
 611  */
 612 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
 613                  BN_CTX *ctx);
 614
 615 /** Computes the inverse of a EC_POINT
 616  *  \param  group  underlying EC_GROUP object
 617  *  \param  a      EC_POINT object to be inverted (it's used for the result as well)
 618  *  \param  ctx    BN_CTX object (optional)
 619  *  \return 1 on success and 0 if an error occured
 620  */
 621 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);
 622
 623 /** Checks whether the point is the neutral element of the group
 624  *  \param  group  the underlying EC_GROUP object
 625  *  \param  p      EC_POINT object
 626  *  \return 1 if the point is the neutral element and 0 otherwise
 627  */
 628 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);
 629
 630 /** Checks whether the point is on the curve
 631  *  \param  group  underlying EC_GROUP object
 632  *  \param  point  EC_POINT object to check
 633  *  \param  ctx    BN_CTX object (optional)
 634  *  \return 1 if point if on the curve and 0 otherwise
 635  */
 636 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point,
 637                          BN_CTX *ctx);
 638
 639 /** Compares two EC_POINTs
 640  *  \param  group  underlying EC_GROUP object
 641  *  \param  a      first EC_POINT object
 642  *  \param  b      second EC_POINT object
 643  *  \param  ctx    BN_CTX object (optional)
 644  *  \return 0 if both points are equal and a value != 0 otherwise
 645  */
 646 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b,
 647                  BN_CTX *ctx);
 648
 649 int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx);
 650 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num,
 651                           EC_POINT *points[], BN_CTX *ctx);
 652
 653 /** Computes r = generator * n sum_{i=0}^{num-1} p[i] * m[i]
 654  *  \param  group  underlying EC_GROUP object
 655  *  \param  r      EC_POINT object for the result
 656  *  \param  n      BIGNUM with the multiplier for the group generator (optional)
 657  *  \param  num    number futher summands
 658  *  \param  p      array of size num of EC_POINT objects
 659  *  \param  m      array of size num of BIGNUM objects
 660  *  \param  ctx    BN_CTX object (optional)
 661  *  \return 1 on success and 0 if an error occured
 662  */
 663 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
 664                   size_t num, const EC_POINT *p[], const BIGNUM *m[],
 665                   BN_CTX *ctx);
 666
 667 /** Computes r = generator * n + q * m
 668  *  \param  group  underlying EC_GROUP object
 669  *  \param  r      EC_POINT object for the result
 670  *  \param  n      BIGNUM with the multiplier for the group generator (optional)
 671  *  \param  q      EC_POINT object with the first factor of the second summand
 672  *  \param  m      BIGNUM with the second factor of the second summand
 673  *  \param  ctx    BN_CTX object (optional)
 674  *  \return 1 on success and 0 if an error occured
 675  */
 676 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
 677                  const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);
 678
 679 /** Stores multiples of generator for faster point multiplication
 680  *  \param  group  EC_GROUP object
 681  *  \param  ctx    BN_CTX object (optional)
 682  *  \return 1 on success and 0 if an error occured
 683  */
 684 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
 685
 686 /** Reports whether a precomputation has been done
 687  *  \param  group  EC_GROUP object
 688  *  \return 1 if a pre-computation has been done and 0 otherwise
 689  */
 690 int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
 691
 692 /********************************************************************/
 693 /*                       ASN1 stuff                                 */
 694 /********************************************************************/
 695
 696 /*
 697  * EC_GROUP_get_basis_type() returns the NID of the basis type used to
 698  * represent the field elements
 699  */
 700 int EC_GROUP_get_basis_type(const EC_GROUP *);
 701 # ifndef OPENSSL_NO_EC2M
 702 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
 703 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
 704                                    unsigned int *k2, unsigned int *k3);
 705 # endif
 706
 707 # define OPENSSL_EC_NAMED_CURVE  0x001
 708
 709 typedef struct ecpk_parameters_st ECPKPARAMETERS;
 710
 711 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
 712 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
 713
 714 # define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
 715 # define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
 716 # define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
 717                 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
 718 # define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
 719                 (unsigned char *)(x))
 720
 721 # ifndef OPENSSL_NO_BIO
 722 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
 723 # endif
 724 # ifndef OPENSSL_NO_FP_API
 725 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
 726 # endif
 727
 728 /********************************************************************/
 729 /*                      EC_KEY functions                            */
 730 /********************************************************************/
 731
 732 typedef struct ec_key_st EC_KEY;
 733
 734 /* some values for the encoding_flag */
 735 # define EC_PKEY_NO_PARAMETERS   0x001
 736 # define EC_PKEY_NO_PUBKEY       0x002
 737
 738 /* some values for the flags field */
 739 # define EC_FLAG_NON_FIPS_ALLOW  0x1
 740 # define EC_FLAG_FIPS_CHECKED    0x2
 741
 742 /** Creates a new EC_KEY object.
 743  *  \return EC_KEY object or NULL if an error occurred.
 744  */
 745 EC_KEY *EC_KEY_new(void);
 746
 747 int EC_KEY_get_flags(const EC_KEY *key);
 748
 749 void EC_KEY_set_flags(EC_KEY *key, int flags);
 750
 751 void EC_KEY_clear_flags(EC_KEY *key, int flags);
 752
 753 /** Creates a new EC_KEY object using a named curve as underlying
 754  *  EC_GROUP object.
 755  *  \param  nid  NID of the named curve.
 756  *  \return EC_KEY object or NULL if an error occurred.
 757  */
 758 EC_KEY *EC_KEY_new_by_curve_name(int nid);
 759
 760 /** Frees a EC_KEY object.
 761  *  \param  key  EC_KEY object to be freed.
 762  */
 763 void EC_KEY_free(EC_KEY *key);
 764
 765 /** Copies a EC_KEY object.
 766  *  \param  dst  destination EC_KEY object
 767  *  \param  src  src EC_KEY object
 768  *  \return dst or NULL if an error occurred.
 769  */
 770 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src);
 771
 772 /** Creates a new EC_KEY object and copies the content from src to it.
 773  *  \param  src  the source EC_KEY object
 774  *  \return newly created EC_KEY object or NULL if an error occurred.
 775  */
 776 EC_KEY *EC_KEY_dup(const EC_KEY *src);
 777
 778 /** Increases the internal reference count of a EC_KEY object.
 779  *  \param  key  EC_KEY object
 780  *  \return 1 on success and 0 if an error occurred.
 781  */
 782 int EC_KEY_up_ref(EC_KEY *key);
 783
 784 /** Returns the EC_GROUP object of a EC_KEY object
 785  *  \param  key  EC_KEY object
 786  *  \return the EC_GROUP object (possibly NULL).
 787  */
 788 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);
 789
 790 /** Sets the EC_GROUP of a EC_KEY object.
 791  *  \param  key    EC_KEY object
 792  *  \param  group  EC_GROUP to use in the EC_KEY object (note: the EC_KEY
 793  *                 object will use an own copy of the EC_GROUP).
 794  *  \return 1 on success and 0 if an error occurred.
 795  */
 796 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);
 797
 798 /** Returns the private key of a EC_KEY object.
 799  *  \param  key  EC_KEY object
 800  *  \return a BIGNUM with the private key (possibly NULL).
 801  */
 802 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);
 803
 804 /** Sets the private key of a EC_KEY object.
 805  *  \param  key  EC_KEY object
 806  *  \param  prv  BIGNUM with the private key (note: the EC_KEY object
 807  *               will use an own copy of the BIGNUM).
 808  *  \return 1 on success and 0 if an error occurred.
 809  */
 810 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);
 811
 812 /** Returns the public key of a EC_KEY object.
 813  *  \param  key  the EC_KEY object
 814  *  \return a EC_POINT object with the public key (possibly NULL)
 815  */
 816 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);
 817
 818 /** Sets the public key of a EC_KEY object.
 819  *  \param  key  EC_KEY object
 820  *  \param  pub  EC_POINT object with the public key (note: the EC_KEY object
 821  *               will use an own copy of the EC_POINT object).
 822  *  \return 1 on success and 0 if an error occurred.
 823  */
 824 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);
 825
 826 unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
 827 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);
 828 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key);
 829 void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform);
 830 /* functions to set/get method specific data  */
 831 void *EC_KEY_get_key_method_data(EC_KEY *key,
 832                                  void *(*dup_func) (void *),
 833                                  void (*free_func) (void *),
 834                                  void (*clear_free_func) (void *));
 835 /** Sets the key method data of an EC_KEY object, if none has yet been set.
 836  *  \param  key              EC_KEY object
 837  *  \param  data             opaque data to install.
 838  *  \param  dup_func         a function that duplicates |data|.
 839  *  \param  free_func        a function that frees |data|.
 840  *  \param  clear_free_func  a function that wipes and frees |data|.
 841  *  \return the previously set data pointer, or NULL if |data| was inserted.
 842  */
 843 void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data,
 844                                     void *(*dup_func) (void *),
 845                                     void (*free_func) (void *),
 846                                     void (*clear_free_func) (void *));
 847 /* wrapper functions for the underlying EC_GROUP object */
 848 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag);
 849
 850 /** Creates a table of pre-computed multiples of the generator to
 851  *  accelerate further EC_KEY operations.
 852  *  \param  key  EC_KEY object
 853  *  \param  ctx  BN_CTX object (optional)
 854  *  \return 1 on success and 0 if an error occurred.
 855  */
 856 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);
 857
 858 /** Creates a new ec private (and optional a new public) key.
 859  *  \param  key  EC_KEY object
 860  *  \return 1 on success and 0 if an error occurred.
 861  */
 862 int EC_KEY_generate_key(EC_KEY *key);
 863
 864 /** Verifies that a private and/or public key is valid.
 865  *  \param  key  the EC_KEY object
 866  *  \return 1 on success and 0 otherwise.
 867  */
 868 int EC_KEY_check_key(const EC_KEY *key);
 869
 870 /** Sets a public key from affine coordindates performing
 871  *  neccessary NIST PKV tests.
 872  *  \param  key  the EC_KEY object
 873  *  \param  x    public key x coordinate
 874  *  \param  y    public key y coordinate
 875  *  \return 1 on success and 0 otherwise.
 876  */
 877 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x,
 878                                              BIGNUM *y);
 879
 880 /********************************************************************/
 881 /*        de- and encoding functions for SEC1 ECPrivateKey          */
 882 /********************************************************************/
 883
 884 /** Decodes a private key from a memory buffer.
 885  *  \param  key  a pointer to a EC_KEY object which should be used (or NULL)
 886  *  \param  in   pointer to memory with the DER encoded private key
 887  *  \param  len  length of the DER encoded private key
 888  *  \return the decoded private key or NULL if an error occurred.
 889  */
 890 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len);
 891
 892 /** Encodes a private key object and stores the result in a buffer.
 893  *  \param  key  the EC_KEY object to encode
 894  *  \param  out  the buffer for the result (if NULL the function returns number
 895  *               of bytes needed).
 896  *  \return 1 on success and 0 if an error occurred.
 897  */
 898 int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out);
 899
 900 /********************************************************************/
 901 /*        de- and encoding functions for EC parameters              */
 902 /********************************************************************/
 903
 904 /** Decodes ec parameter from a memory buffer.
 905  *  \param  key  a pointer to a EC_KEY object which should be used (or NULL)
 906  *  \param  in   pointer to memory with the DER encoded ec parameters
 907  *  \param  len  length of the DER encoded ec parameters
 908  *  \return a EC_KEY object with the decoded parameters or NULL if an error
 909  *          occurred.
 910  */
 911 EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len);
 912
 913 /** Encodes ec parameter and stores the result in a buffer.
 914  *  \param  key  the EC_KEY object with ec paramters to encode
 915  *  \param  out  the buffer for the result (if NULL the function returns number
 916  *               of bytes needed).
 917  *  \return 1 on success and 0 if an error occurred.
 918  */
 919 int i2d_ECParameters(EC_KEY *key, unsigned char **out);
 920
 921 /********************************************************************/
 922 /*         de- and encoding functions for EC public key             */
 923 /*         (octet string, not DER -- hence 'o2i' and 'i2o')         */
 924 /********************************************************************/
 925
 926 /** Decodes a ec public key from a octet string.
 927  *  \param  key  a pointer to a EC_KEY object which should be used
 928  *  \param  in   memory buffer with the encoded public key
 929  *  \param  len  length of the encoded public key
 930  *  \return EC_KEY object with decoded public key or NULL if an error
 931  *          occurred.
 932  */
 933 EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len);
 934
 935 /** Encodes a ec public key in an octet string.
 936  *  \param  key  the EC_KEY object with the public key
 937  *  \param  out  the buffer for the result (if NULL the function returns number
 938  *               of bytes needed).
 939  *  \return 1 on success and 0 if an error occurred
 940  */
 941 int i2o_ECPublicKey(EC_KEY *key, unsigned char **out);
 942
 943 # ifndef OPENSSL_NO_BIO
 944 /** Prints out the ec parameters on human readable form.
 945  *  \param  bp   BIO object to which the information is printed
 946  *  \param  key  EC_KEY object
 947  *  \return 1 on success and 0 if an error occurred
 948  */
 949 int ECParameters_print(BIO *bp, const EC_KEY *key);
 950
 951 /** Prints out the contents of a EC_KEY object
 952  *  \param  bp   BIO object to which the information is printed
 953  *  \param  key  EC_KEY object
 954  *  \param  off  line offset
 955  *  \return 1 on success and 0 if an error occurred
 956  */
 957 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off);
 958
 959 # endif
 960 # ifndef OPENSSL_NO_FP_API
 961 /** Prints out the ec parameters on human readable form.
 962  *  \param  fp   file descriptor to which the information is printed
 963  *  \param  key  EC_KEY object
 964  *  \return 1 on success and 0 if an error occurred
 965  */
 966 int ECParameters_print_fp(FILE *fp, const EC_KEY *key);
 967
 968 /** Prints out the contents of a EC_KEY object
 969  *  \param  fp   file descriptor to which the information is printed
 970  *  \param  key  EC_KEY object
 971  *  \param  off  line offset
 972  *  \return 1 on success and 0 if an error occurred
 973  */
 974 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
 975
 976 # endif
 977
 978 # define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)
 979
 980 # ifndef __cplusplus
 981 #  if defined(__SUNPRO_C)
 982 #   if __SUNPRO_C >= 0x520
 983 #    pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
 984 #   endif
 985 #  endif
 986 # endif
 987
 988 # define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \
 989         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, EVP_PKEY_OP_PARAMGEN, \
 990                                 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL)
 991
 992 # define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID             (EVP_PKEY_ALG_CTRL + 1)
 993
 994 /* BEGIN ERROR CODES */
 995 /*
 996  * The following lines are auto generated by the script mkerr.pl. Any changes
 997  * made after this point may be overwritten when the script is next run.
 998  */
 999 void ERR_load_EC_strings(void);
1000
1001 /* Error codes for the EC functions. */
1002
1003 /* Function codes. */
1004 # define EC_F_BN_TO_FELEM                                 224
1005 # define EC_F_COMPUTE_WNAF                                143
1006 # define EC_F_D2I_ECPARAMETERS                            144
1007 # define EC_F_D2I_ECPKPARAMETERS                          145
1008 # define EC_F_D2I_ECPRIVATEKEY                            146
1009 # define EC_F_DO_EC_KEY_PRINT                             221
1010 # define EC_F_ECKEY_PARAM2TYPE                            223
1011 # define EC_F_ECKEY_PARAM_DECODE                          212
1012 # define EC_F_ECKEY_PRIV_DECODE                           213
1013 # define EC_F_ECKEY_PRIV_ENCODE                           214
1014 # define EC_F_ECKEY_PUB_DECODE                            215
1015 # define EC_F_ECKEY_PUB_ENCODE                            216
1016 # define EC_F_ECKEY_TYPE2PARAM                            220
1017 # define EC_F_ECPARAMETERS_PRINT                          147
1018 # define EC_F_ECPARAMETERS_PRINT_FP                       148
1019 # define EC_F_ECPKPARAMETERS_PRINT                        149
1020 # define EC_F_ECPKPARAMETERS_PRINT_FP                     150
1021 # define EC_F_ECP_NIST_MOD_192                            203
1022 # define EC_F_ECP_NIST_MOD_224                            204
1023 # define EC_F_ECP_NIST_MOD_256                            205
1024 # define EC_F_ECP_NIST_MOD_521                            206
1025 # define EC_F_EC_ASN1_GROUP2CURVE                         153
1026 # define EC_F_EC_ASN1_GROUP2FIELDID                       154
1027 # define EC_F_EC_ASN1_GROUP2PARAMETERS                    155
1028 # define EC_F_EC_ASN1_GROUP2PKPARAMETERS                  156
1029 # define EC_F_EC_ASN1_PARAMETERS2GROUP                    157
1030 # define EC_F_EC_ASN1_PKPARAMETERS2GROUP                  158
1031 # define EC_F_EC_EX_DATA_SET_DATA                         211
1032 # define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY           208
1033 # define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT     159
1034 # define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE              195
1035 # define EC_F_EC_GF2M_SIMPLE_OCT2POINT                    160
1036 # define EC_F_EC_GF2M_SIMPLE_POINT2OCT                    161
1037 # define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
1038 # define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
1039 # define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES   164
1040 # define EC_F_EC_GFP_MONT_FIELD_DECODE                    133
1041 # define EC_F_EC_GFP_MONT_FIELD_ENCODE                    134
1042 # define EC_F_EC_GFP_MONT_FIELD_MUL                       131
1043 # define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE                209
1044 # define EC_F_EC_GFP_MONT_FIELD_SQR                       132
1045 # define EC_F_EC_GFP_MONT_GROUP_SET_CURVE                 189
1046 # define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP             135
1047 # define EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE             225
1048 # define EC_F_EC_GFP_NISTP224_POINTS_MUL                  228
1049 # define EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES 226
1050 # define EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE             230
1051 # define EC_F_EC_GFP_NISTP256_POINTS_MUL                  231
1052 # define EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES 232
1053 # define EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE             233
1054 # define EC_F_EC_GFP_NISTP521_POINTS_MUL                  234
1055 # define EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES 235
1056 # define EC_F_EC_GFP_NIST_FIELD_MUL                       200
1057 # define EC_F_EC_GFP_NIST_FIELD_SQR                       201
1058 # define EC_F_EC_GFP_NIST_GROUP_SET_CURVE                 202
1059 # define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT      165
1060 # define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE               166
1061 # define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP           100
1062 # define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR           101
1063 # define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE                   102
1064 # define EC_F_EC_GFP_SIMPLE_OCT2POINT                     103
1065 # define EC_F_EC_GFP_SIMPLE_POINT2OCT                     104
1066 # define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE            137
1067 # define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES  167
1068 # define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
1069 # define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES  168
1070 # define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
1071 # define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES    169
1072 # define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
1073 # define EC_F_EC_GROUP_CHECK                              170
1074 # define EC_F_EC_GROUP_CHECK_DISCRIMINANT                 171
1075 # define EC_F_EC_GROUP_COPY                               106
1076 # define EC_F_EC_GROUP_GET0_GENERATOR                     139
1077 # define EC_F_EC_GROUP_GET_COFACTOR                       140
1078 # define EC_F_EC_GROUP_GET_CURVE_GF2M                     172
1079 # define EC_F_EC_GROUP_GET_CURVE_GFP                      130
1080 # define EC_F_EC_GROUP_GET_DEGREE                         173
1081 # define EC_F_EC_GROUP_GET_ORDER                          141
1082 # define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS              193
1083 # define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS                194
1084 # define EC_F_EC_GROUP_NEW                                108
1085 # define EC_F_EC_GROUP_NEW_BY_CURVE_NAME                  174
1086 # define EC_F_EC_GROUP_NEW_FROM_DATA                      175
1087 # define EC_F_EC_GROUP_PRECOMPUTE_MULT                    142
1088 # define EC_F_EC_GROUP_SET_CURVE_GF2M                     176
1089 # define EC_F_EC_GROUP_SET_CURVE_GFP                      109
1090 # define EC_F_EC_GROUP_SET_EXTRA_DATA                     110
1091 # define EC_F_EC_GROUP_SET_GENERATOR                      111
1092 # define EC_F_EC_KEY_CHECK_KEY                            177
1093 # define EC_F_EC_KEY_COPY                                 178
1094 # define EC_F_EC_KEY_GENERATE_KEY                         179
1095 # define EC_F_EC_KEY_NEW                                  182
1096 # define EC_F_EC_KEY_PRINT                                180
1097 # define EC_F_EC_KEY_PRINT_FP                             181
1098 # define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES    229
1099 # define EC_F_EC_POINTS_MAKE_AFFINE                       136
1100 # define EC_F_EC_POINT_ADD                                112
1101 # define EC_F_EC_POINT_CMP                                113
1102 # define EC_F_EC_POINT_COPY                               114
1103 # define EC_F_EC_POINT_DBL                                115
1104 # define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M        183
1105 # define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP         116
1106 # define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP    117
1107 # define EC_F_EC_POINT_INVERT                             210
1108 # define EC_F_EC_POINT_IS_AT_INFINITY                     118
1109 # define EC_F_EC_POINT_IS_ON_CURVE                        119
1110 # define EC_F_EC_POINT_MAKE_AFFINE                        120
1111 # define EC_F_EC_POINT_MUL                                184
1112 # define EC_F_EC_POINT_NEW                                121
1113 # define EC_F_EC_POINT_OCT2POINT                          122
1114 # define EC_F_EC_POINT_POINT2OCT                          123
1115 # define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M        185
1116 # define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP         124
1117 # define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M    186
1118 # define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP     125
1119 # define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP    126
1120 # define EC_F_EC_POINT_SET_TO_INFINITY                    127
1121 # define EC_F_EC_PRE_COMP_DUP                             207
1122 # define EC_F_EC_PRE_COMP_NEW                             196
1123 # define EC_F_EC_WNAF_MUL                                 187
1124 # define EC_F_EC_WNAF_PRECOMPUTE_MULT                     188
1125 # define EC_F_I2D_ECPARAMETERS                            190
1126 # define EC_F_I2D_ECPKPARAMETERS                          191
1127 # define EC_F_I2D_ECPRIVATEKEY                            192
1128 # define EC_F_I2O_ECPUBLICKEY                             151
1129 # define EC_F_NISTP224_PRE_COMP_NEW                       227
1130 # define EC_F_NISTP256_PRE_COMP_NEW                       236
1131 # define EC_F_NISTP521_PRE_COMP_NEW                       237
1132 # define EC_F_O2I_ECPUBLICKEY                             152
1133 # define EC_F_OLD_EC_PRIV_DECODE                          222
1134 # define EC_F_PKEY_EC_CTRL                                197
1135 # define EC_F_PKEY_EC_CTRL_STR                            198
1136 # define EC_F_PKEY_EC_DERIVE                              217
1137 # define EC_F_PKEY_EC_KEYGEN                              199
1138 # define EC_F_PKEY_EC_PARAMGEN                            219
1139 # define EC_F_PKEY_EC_SIGN                                218
1140
1141 /* Reason codes. */
1142 # define EC_R_ASN1_ERROR                                  115
1143 # define EC_R_ASN1_UNKNOWN_FIELD                          116
1144 # define EC_R_BIGNUM_OUT_OF_RANGE                         144
1145 # define EC_R_BUFFER_TOO_SMALL                            100
1146 # define EC_R_COORDINATES_OUT_OF_RANGE                    146
1147 # define EC_R_D2I_ECPKPARAMETERS_FAILURE                  117
1148 # define EC_R_DECODE_ERROR                                142
1149 # define EC_R_DISCRIMINANT_IS_ZERO                        118
1150 # define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE                119
1151 # define EC_R_FIELD_TOO_LARGE                             143
1152 # define EC_R_GF2M_NOT_SUPPORTED                          147
1153 # define EC_R_GROUP2PKPARAMETERS_FAILURE                  120
1154 # define EC_R_I2D_ECPKPARAMETERS_FAILURE                  121
1155 # define EC_R_INCOMPATIBLE_OBJECTS                        101
1156 # define EC_R_INVALID_ARGUMENT                            112
1157 # define EC_R_INVALID_COMPRESSED_POINT                    110
1158 # define EC_R_INVALID_COMPRESSION_BIT                     109
1159 # define EC_R_INVALID_CURVE                               141
1160 # define EC_R_INVALID_DIGEST_TYPE                         138
1161 # define EC_R_INVALID_ENCODING                            102
1162 # define EC_R_INVALID_FIELD                               103
1163 # define EC_R_INVALID_FORM                                104
1164 # define EC_R_INVALID_GROUP_ORDER                         122
1165 # define EC_R_INVALID_PENTANOMIAL_BASIS                   132
1166 # define EC_R_INVALID_PRIVATE_KEY                         123
1167 # define EC_R_INVALID_TRINOMIAL_BASIS                     137
1168 # define EC_R_KEYS_NOT_SET                                140
1169 # define EC_R_MISSING_PARAMETERS                          124
1170 # define EC_R_MISSING_PRIVATE_KEY                         125
1171 # define EC_R_NOT_A_NIST_PRIME                            135
1172 # define EC_R_NOT_A_SUPPORTED_NIST_PRIME                  136
1173 # define EC_R_NOT_IMPLEMENTED                             126
1174 # define EC_R_NOT_INITIALIZED                             111
1175 # define EC_R_NO_FIELD_MOD                                133
1176 # define EC_R_NO_PARAMETERS_SET                           139
1177 # define EC_R_PASSED_NULL_PARAMETER                       134
1178 # define EC_R_PKPARAMETERS2GROUP_FAILURE                  127
1179 # define EC_R_POINT_AT_INFINITY                           106
1180 # define EC_R_POINT_IS_NOT_ON_CURVE                       107
1181 # define EC_R_SLOT_FULL                                   108
1182 # define EC_R_UNDEFINED_GENERATOR                         113
1183 # define EC_R_UNDEFINED_ORDER                             128
1184 # define EC_R_UNKNOWN_GROUP                               129
1185 # define EC_R_UNKNOWN_ORDER                               114
1186 # define EC_R_UNSUPPORTED_FIELD                           131
1187 # define EC_R_WRONG_CURVE_PARAMETERS                      145
1188 # define EC_R_WRONG_ORDER                                 130
1189
1190 #ifdef  __cplusplus
1191 }
1192 #endif
1193 #endif