xref: /freebsd-9.3-release/crypto/openssl/crypto/ec/ec.h

/* crypto/ec/ec.h */
/*
 * Originally written by Bodo Moeller for the OpenSSL project.
 */
/* ====================================================================
 * Copyright (c) 1998-2003 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 *
 * Portions of the attached software ("Contribution") are developed by
 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
 *
 * The Contribution is licensed pursuant to the OpenSSL open source
 * license provided above.
 *
 * The elliptic curve binary polynomial software is originally written by
 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
 *
 */

#ifndef HEADER_EC_H
# define HEADER_EC_H

# include <openssl/opensslconf.h>

# ifdef OPENSSL_NO_EC
#  error EC is disabled.
# endif

# include <openssl/asn1.h>
# include <openssl/symhacks.h>
# ifndef OPENSSL_NO_DEPRECATED
#  include <openssl/bn.h>
# endif

# ifdef  __cplusplus
extern "C" {
# elif defined(__SUNPRO_C)
#  if __SUNPRO_C >= 0x520
#   pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
#  endif
# endif

# ifndef OPENSSL_ECC_MAX_FIELD_BITS
#  define OPENSSL_ECC_MAX_FIELD_BITS 661
# endif

typedef enum {
    /* values as defined in X9.62 (ECDSA) and elsewhere */
    POINT_CONVERSION_COMPRESSED = 2,
    POINT_CONVERSION_UNCOMPRESSED = 4,
    POINT_CONVERSION_HYBRID = 6
} point_conversion_form_t;

typedef struct ec_method_st EC_METHOD;

typedef struct ec_group_st
    /*-
     EC_METHOD *meth;
     -- field definition
     -- curve coefficients
     -- optional generator with associated information (order, cofactor)
     -- optional extra data (precomputed table for fast computation of multiples of generator)
     -- ASN1 stuff
    */
    EC_GROUP;

typedef struct ec_point_st EC_POINT;

/*
 * EC_METHODs for curves over GF(p). EC_GFp_simple_method provides the basis
 * for the optimized methods.
 */
const EC_METHOD *EC_GFp_simple_method(void);
const EC_METHOD *EC_GFp_mont_method(void);
const EC_METHOD *EC_GFp_nist_method(void);

/*
 * EC_METHOD for curves over GF(2^m).
 */
const EC_METHOD *EC_GF2m_simple_method(void);

EC_GROUP *EC_GROUP_new(const EC_METHOD *);
void EC_GROUP_free(EC_GROUP *);
void EC_GROUP_clear_free(EC_GROUP *);
int EC_GROUP_copy(EC_GROUP *, const EC_GROUP *);
EC_GROUP *EC_GROUP_dup(const EC_GROUP *);

const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *);
int EC_METHOD_get_field_type(const EC_METHOD *);

int EC_GROUP_set_generator(EC_GROUP *, const EC_POINT *generator,
                           const BIGNUM *order, const BIGNUM *cofactor);
const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *);
int EC_GROUP_get_order(const EC_GROUP *, BIGNUM *order, BN_CTX *);
int EC_GROUP_get_cofactor(const EC_GROUP *, BIGNUM *cofactor, BN_CTX *);

void EC_GROUP_set_curve_name(EC_GROUP *, int nid);
int EC_GROUP_get_curve_name(const EC_GROUP *);

void EC_GROUP_set_asn1_flag(EC_GROUP *, int flag);
int EC_GROUP_get_asn1_flag(const EC_GROUP *);

void EC_GROUP_set_point_conversion_form(EC_GROUP *, point_conversion_form_t);
point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);

unsigned char *EC_GROUP_get0_seed(const EC_GROUP *);
size_t EC_GROUP_get_seed_len(const EC_GROUP *);
size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);

int EC_GROUP_set_curve_GFp(EC_GROUP *, const BIGNUM *p, const BIGNUM *a,
                           const BIGNUM *b, BN_CTX *);
int EC_GROUP_get_curve_GFp(const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b,
                           BN_CTX *);
int EC_GROUP_set_curve_GF2m(EC_GROUP *, const BIGNUM *p, const BIGNUM *a,
                            const BIGNUM *b, BN_CTX *);
int EC_GROUP_get_curve_GF2m(const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b,
                            BN_CTX *);

/* returns the number of bits needed to represent a field element */
int EC_GROUP_get_degree(const EC_GROUP *);

/* EC_GROUP_check() returns 1 if 'group' defines a valid group, 0 otherwise */
int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
/*
 * EC_GROUP_check_discriminant() returns 1 if the discriminant of the
 * elliptic curve is not zero, 0 otherwise
 */
int EC_GROUP_check_discriminant(const EC_GROUP *, BN_CTX *);

/* EC_GROUP_cmp() returns 0 if both groups are equal and 1 otherwise */
int EC_GROUP_cmp(const EC_GROUP *, const EC_GROUP *, BN_CTX *);

/*
 * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after
 * choosing an appropriate EC_METHOD
 */
EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a,
                                 const BIGNUM *b, BN_CTX *);
EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a,
                                  const BIGNUM *b, BN_CTX *);

/*
 * EC_GROUP_new_by_curve_name() creates a EC_GROUP structure specified by a
 * curve name (in form of a NID)
 */
EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
/* handling of internal curves */
typedef struct {
    int nid;
    const char *comment;
} EC_builtin_curve;
/*
 * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all
 * available curves or zero if a error occurred. In case r ist not zero
 * nitems EC_builtin_curve structures are filled with the data of the first
 * nitems internal groups
 */
size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);

/* EC_POINT functions */

EC_POINT *EC_POINT_new(const EC_GROUP *);
void EC_POINT_free(EC_POINT *);
void EC_POINT_clear_free(EC_POINT *);
int EC_POINT_copy(EC_POINT *, const EC_POINT *);
EC_POINT *EC_POINT_dup(const EC_POINT *, const EC_GROUP *);

const EC_METHOD *EC_POINT_method_of(const EC_POINT *);

int EC_POINT_set_to_infinity(const EC_GROUP *, EC_POINT *);
int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *, EC_POINT *,
                                             const BIGNUM *x, const BIGNUM *y,
                                             const BIGNUM *z, BN_CTX *);
int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *,
                                             const EC_POINT *, BIGNUM *x,
                                             BIGNUM *y, BIGNUM *z, BN_CTX *);
int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *, EC_POINT *,
                                        const BIGNUM *x, const BIGNUM *y,
                                        BN_CTX *);
int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *, const EC_POINT *,
                                        BIGNUM *x, BIGNUM *y, BN_CTX *);
int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *, EC_POINT *,
                                            const BIGNUM *x, int y_bit,
                                            BN_CTX *);

int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *, EC_POINT *,
                                         const BIGNUM *x, const BIGNUM *y,
                                         BN_CTX *);
int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *, const EC_POINT *,
                                         BIGNUM *x, BIGNUM *y, BN_CTX *);
int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *, EC_POINT *,
                                             const BIGNUM *x, int y_bit,
                                             BN_CTX *);

size_t EC_POINT_point2oct(const EC_GROUP *, const EC_POINT *,
                          point_conversion_form_t form, unsigned char *buf,
                          size_t len, BN_CTX *);
int EC_POINT_oct2point(const EC_GROUP *, EC_POINT *, const unsigned char *buf,
                       size_t len, BN_CTX *);

/* other interfaces to point2oct/oct2point: */
BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
                          point_conversion_form_t form, BIGNUM *, BN_CTX *);
EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
                            EC_POINT *, BN_CTX *);
char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
                         point_conversion_form_t form, BN_CTX *);
EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
                             EC_POINT *, BN_CTX *);

int EC_POINT_add(const EC_GROUP *, EC_POINT *r, const EC_POINT *a,
                 const EC_POINT *b, BN_CTX *);
int EC_POINT_dbl(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, BN_CTX *);
int EC_POINT_invert(const EC_GROUP *, EC_POINT *, BN_CTX *);

int EC_POINT_is_at_infinity(const EC_GROUP *, const EC_POINT *);
int EC_POINT_is_on_curve(const EC_GROUP *, const EC_POINT *, BN_CTX *);
int EC_POINT_cmp(const EC_GROUP *, const EC_POINT *a, const EC_POINT *b,
                 BN_CTX *);

int EC_POINT_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *);
int EC_POINTs_make_affine(const EC_GROUP *, size_t num, EC_POINT *[],
                          BN_CTX *);

int EC_POINTs_mul(const EC_GROUP *, EC_POINT *r, const BIGNUM *, size_t num,
                  const EC_POINT *[], const BIGNUM *[], BN_CTX *);
int EC_POINT_mul(const EC_GROUP *, EC_POINT *r, const BIGNUM *,
                 const EC_POINT *, const BIGNUM *, BN_CTX *);

/*
 * EC_GROUP_precompute_mult() stores multiples of generator for faster point
 * multiplication
 */
int EC_GROUP_precompute_mult(EC_GROUP *, BN_CTX *);
/*
 * EC_GROUP_have_precompute_mult() reports whether such precomputation has
 * been done
 */
int EC_GROUP_have_precompute_mult(const EC_GROUP *);

/* ASN1 stuff */

/*
 * EC_GROUP_get_basis_type() returns the NID of the basis type used to
 * represent the field elements
 */
int EC_GROUP_get_basis_type(const EC_GROUP *);
int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
                                   unsigned int *k2, unsigned int *k3);

# define OPENSSL_EC_NAMED_CURVE  0x001

typedef struct ecpk_parameters_st ECPKPARAMETERS;

EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);

# define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x)
# define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x)
# define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
                (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
# define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
                (unsigned char *)(x))

# ifndef OPENSSL_NO_BIO
int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
# endif
# ifndef OPENSSL_NO_FP_API
int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
# endif

/* the EC_KEY stuff */
typedef struct ec_key_st EC_KEY;

/* some values for the encoding_flag */
# define EC_PKEY_NO_PARAMETERS   0x001
# define EC_PKEY_NO_PUBKEY       0x002

EC_KEY *EC_KEY_new(void);
EC_KEY *EC_KEY_new_by_curve_name(int nid);
void EC_KEY_free(EC_KEY *);
EC_KEY *EC_KEY_copy(EC_KEY *, const EC_KEY *);
EC_KEY *EC_KEY_dup(const EC_KEY *);

int EC_KEY_up_ref(EC_KEY *);

const EC_GROUP *EC_KEY_get0_group(const EC_KEY *);
int EC_KEY_set_group(EC_KEY *, const EC_GROUP *);
const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *);
int EC_KEY_set_private_key(EC_KEY *, const BIGNUM *);
const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *);
int EC_KEY_set_public_key(EC_KEY *, const EC_POINT *);
unsigned EC_KEY_get_enc_flags(const EC_KEY *);
void EC_KEY_set_enc_flags(EC_KEY *, unsigned int);
point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *);
void EC_KEY_set_conv_form(EC_KEY *, point_conversion_form_t);
/* functions to set/get method specific data  */
void *EC_KEY_get_key_method_data(EC_KEY *,
                                 void *(*dup_func) (void *),
                                 void (*free_func) (void *),
                                 void (*clear_free_func) (void *));
/** Sets the key method data of an EC_KEY object, if none has yet been set.
 *  \param  key              EC_KEY object
 *  \param  data             opaque data to install.
 *  \param  dup_func         a function that duplicates |data|.
 *  \param  free_func        a function that frees |data|.
 *  \param  clear_free_func  a function that wipes and frees |data|.
 *  \return the previously set data pointer, or NULL if |data| was inserted.
 */
void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data,
                                    void *(*dup_func) (void *),
                                    void (*free_func) (void *),
                                    void (*clear_free_func) (void *));
/* wrapper functions for the underlying EC_GROUP object */
void EC_KEY_set_asn1_flag(EC_KEY *, int);
int EC_KEY_precompute_mult(EC_KEY *, BN_CTX *ctx);

/* EC_KEY_generate_key() creates a ec private (public) key */
int EC_KEY_generate_key(EC_KEY *);
/* EC_KEY_check_key() */
int EC_KEY_check_key(const EC_KEY *);

/* de- and encoding functions for SEC1 ECPrivateKey */
EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len);
int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out);
/* de- and encoding functions for EC parameters */
EC_KEY *d2i_ECParameters(EC_KEY **a, const unsigned char **in, long len);
int i2d_ECParameters(EC_KEY *a, unsigned char **out);
/*
 * de- and encoding functions for EC public key (octet string, not DER --
 * hence 'o2i' and 'i2o')
 */
EC_KEY *o2i_ECPublicKey(EC_KEY **a, const unsigned char **in, long len);
int i2o_ECPublicKey(EC_KEY *a, unsigned char **out);

# ifndef OPENSSL_NO_BIO
int ECParameters_print(BIO *bp, const EC_KEY *x);
int EC_KEY_print(BIO *bp, const EC_KEY *x, int off);
# endif
# ifndef OPENSSL_NO_FP_API
int ECParameters_print_fp(FILE *fp, const EC_KEY *x);
int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off);
# endif

# define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x)

# ifndef __cplusplus
#  if defined(__SUNPRO_C)
#   if __SUNPRO_C >= 0x520
#    pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
#   endif
#  endif
# endif

/* BEGIN ERROR CODES */
/*
 * The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_EC_strings(void);

/* Error codes for the EC functions. */

/* Function codes. */
# define EC_F_COMPUTE_WNAF                                143
# define EC_F_D2I_ECPARAMETERS                            144
# define EC_F_D2I_ECPKPARAMETERS                          145
# define EC_F_D2I_ECPRIVATEKEY                            146
# define EC_F_ECPARAMETERS_PRINT                          147
# define EC_F_ECPARAMETERS_PRINT_FP                       148
# define EC_F_ECPKPARAMETERS_PRINT                        149
# define EC_F_ECPKPARAMETERS_PRINT_FP                     150
# define EC_F_ECP_NIST_MOD_192                            203
# define EC_F_ECP_NIST_MOD_224                            204
# define EC_F_ECP_NIST_MOD_256                            205
# define EC_F_ECP_NIST_MOD_521                            206
# define EC_F_EC_ASN1_GROUP2CURVE                         153
# define EC_F_EC_ASN1_GROUP2FIELDID                       154
# define EC_F_EC_ASN1_GROUP2PARAMETERS                    155
# define EC_F_EC_ASN1_GROUP2PKPARAMETERS                  156
# define EC_F_EC_ASN1_PARAMETERS2GROUP                    157
# define EC_F_EC_ASN1_PKPARAMETERS2GROUP                  158
# define EC_F_EC_EX_DATA_SET_DATA                         211
# define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY           208
# define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT     159
# define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE              195
# define EC_F_EC_GF2M_SIMPLE_OCT2POINT                    160
# define EC_F_EC_GF2M_SIMPLE_POINT2OCT                    161
# define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162
# define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163
# define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES   164
# define EC_F_EC_GFP_MONT_FIELD_DECODE                    133
# define EC_F_EC_GFP_MONT_FIELD_ENCODE                    134
# define EC_F_EC_GFP_MONT_FIELD_MUL                       131
# define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE                209
# define EC_F_EC_GFP_MONT_FIELD_SQR                       132
# define EC_F_EC_GFP_MONT_GROUP_SET_CURVE                 189
# define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP             135
# define EC_F_EC_GFP_NIST_FIELD_MUL                       200
# define EC_F_EC_GFP_NIST_FIELD_SQR                       201
# define EC_F_EC_GFP_NIST_GROUP_SET_CURVE                 202
# define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT      165
# define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE               166
# define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP           100
# define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR           101
# define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE                   102
# define EC_F_EC_GFP_SIMPLE_OCT2POINT                     103
# define EC_F_EC_GFP_SIMPLE_POINT2OCT                     104
# define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE            137
# define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES  167
# define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
# define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES  168
# define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
# define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES    169
# define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
# define EC_F_EC_GROUP_CHECK                              170
# define EC_F_EC_GROUP_CHECK_DISCRIMINANT                 171
# define EC_F_EC_GROUP_COPY                               106
# define EC_F_EC_GROUP_GET0_GENERATOR                     139
# define EC_F_EC_GROUP_GET_COFACTOR                       140
# define EC_F_EC_GROUP_GET_CURVE_GF2M                     172
# define EC_F_EC_GROUP_GET_CURVE_GFP                      130
# define EC_F_EC_GROUP_GET_DEGREE                         173
# define EC_F_EC_GROUP_GET_ORDER                          141
# define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS              193
# define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS                194
# define EC_F_EC_GROUP_NEW                                108
# define EC_F_EC_GROUP_NEW_BY_CURVE_NAME                  174
# define EC_F_EC_GROUP_NEW_FROM_DATA                      175
# define EC_F_EC_GROUP_PRECOMPUTE_MULT                    142
# define EC_F_EC_GROUP_SET_CURVE_GF2M                     176
# define EC_F_EC_GROUP_SET_CURVE_GFP                      109
# define EC_F_EC_GROUP_SET_EXTRA_DATA                     110
# define EC_F_EC_GROUP_SET_GENERATOR                      111
# define EC_F_EC_KEY_CHECK_KEY                            177
# define EC_F_EC_KEY_COPY                                 178
# define EC_F_EC_KEY_GENERATE_KEY                         179
# define EC_F_EC_KEY_NEW                                  182
# define EC_F_EC_KEY_PRINT                                180
# define EC_F_EC_KEY_PRINT_FP                             181
# define EC_F_EC_POINTS_MAKE_AFFINE                       136
# define EC_F_EC_POINTS_MUL                               138
# define EC_F_EC_POINT_ADD                                112
# define EC_F_EC_POINT_CMP                                113
# define EC_F_EC_POINT_COPY                               114
# define EC_F_EC_POINT_DBL                                115
# define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M        183
# define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP         116
# define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP    117
# define EC_F_EC_POINT_INVERT                             210
# define EC_F_EC_POINT_IS_AT_INFINITY                     118
# define EC_F_EC_POINT_IS_ON_CURVE                        119
# define EC_F_EC_POINT_MAKE_AFFINE                        120
# define EC_F_EC_POINT_MUL                                184
# define EC_F_EC_POINT_NEW                                121
# define EC_F_EC_POINT_OCT2POINT                          122
# define EC_F_EC_POINT_POINT2OCT                          123
# define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M        185
# define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP         124
# define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M    186
# define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP     125
# define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP    126
# define EC_F_EC_POINT_SET_TO_INFINITY                    127
# define EC_F_EC_PRE_COMP_DUP                             207
# define EC_F_EC_PRE_COMP_NEW                             196
# define EC_F_EC_WNAF_MUL                                 187
# define EC_F_EC_WNAF_PRECOMPUTE_MULT                     188
# define EC_F_I2D_ECPARAMETERS                            190
# define EC_F_I2D_ECPKPARAMETERS                          191
# define EC_F_I2D_ECPRIVATEKEY                            192
# define EC_F_I2O_ECPUBLICKEY                             151
# define EC_F_O2I_ECPUBLICKEY                             152

/* Reason codes. */
# define EC_R_ASN1_ERROR                                  115
# define EC_R_ASN1_UNKNOWN_FIELD                          116
# define EC_R_BUFFER_TOO_SMALL                            100
# define EC_R_D2I_ECPKPARAMETERS_FAILURE                  117
# define EC_R_DISCRIMINANT_IS_ZERO                        118
# define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE                119
# define EC_R_FIELD_TOO_LARGE                             138
# define EC_R_GROUP2PKPARAMETERS_FAILURE                  120
# define EC_R_I2D_ECPKPARAMETERS_FAILURE                  121
# define EC_R_INCOMPATIBLE_OBJECTS                        101
# define EC_R_INVALID_ARGUMENT                            112
# define EC_R_INVALID_COMPRESSED_POINT                    110
# define EC_R_INVALID_COMPRESSION_BIT                     109
# define EC_R_INVALID_ENCODING                            102
# define EC_R_INVALID_FIELD                               103
# define EC_R_INVALID_FORM                                104
# define EC_R_INVALID_GROUP_ORDER                         122
# define EC_R_INVALID_PENTANOMIAL_BASIS                   132
# define EC_R_INVALID_PRIVATE_KEY                         123
# define EC_R_INVALID_TRINOMIAL_BASIS                     137
# define EC_R_MISSING_PARAMETERS                          124
# define EC_R_MISSING_PRIVATE_KEY                         125
# define EC_R_NOT_A_NIST_PRIME                            135
# define EC_R_NOT_A_SUPPORTED_NIST_PRIME                  136
# define EC_R_NOT_IMPLEMENTED                             126
# define EC_R_NOT_INITIALIZED                             111
# define EC_R_NO_FIELD_MOD                                133
# define EC_R_PASSED_NULL_PARAMETER                       134
# define EC_R_PKPARAMETERS2GROUP_FAILURE                  127
# define EC_R_POINT_AT_INFINITY                           106
# define EC_R_POINT_IS_NOT_ON_CURVE                       107
# define EC_R_SLOT_FULL                                   108
# define EC_R_UNDEFINED_GENERATOR                         113
# define EC_R_UNDEFINED_ORDER                             128
# define EC_R_UNKNOWN_GROUP                               129
# define EC_R_UNKNOWN_ORDER                               114
# define EC_R_UNSUPPORTED_FIELD                           131
# define EC_R_WRONG_ORDER                                 130

#ifdef  __cplusplus
}
#endif
#endif