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Path: ~//opt/plesk/node/20/include/node/openssl/
File Content: `ec.h`

/*
 * Copyright 2002-2022 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OPENSSL_EC_H
# define OPENSSL_EC_H
# pragma once

# include <openssl/macros.h>
# ifndef OPENSSL_NO_DEPRECATED_3_0
#  define HEADER_EC_H
# endif

# include <openssl/opensslconf.h>
# include <openssl/types.h>

# include <string.h>

# ifdef  __cplusplus
extern "C" {
# endif

/* Values for EVP_PKEY_CTX_set_ec_param_enc() */
# define OPENSSL_EC_EXPLICIT_CURVE  0x000
# define OPENSSL_EC_NAMED_CURVE     0x001

int EVP_PKEY_CTX_set_ec_paramgen_curve_nid(EVP_PKEY_CTX *ctx, int nid);
int EVP_PKEY_CTX_set_ec_param_enc(EVP_PKEY_CTX *ctx, int param_enc);
int EVP_PKEY_CTX_set_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx, int cofactor_mode);
int EVP_PKEY_CTX_get_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx);

int EVP_PKEY_CTX_set_ecdh_kdf_type(EVP_PKEY_CTX *ctx, int kdf);
int EVP_PKEY_CTX_get_ecdh_kdf_type(EVP_PKEY_CTX *ctx);

int EVP_PKEY_CTX_set_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
int EVP_PKEY_CTX_get_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);

int EVP_PKEY_CTX_set_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int len);
int EVP_PKEY_CTX_get_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int *len);

int EVP_PKEY_CTX_set0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char *ukm,
                                   int len);
# ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0
int EVP_PKEY_CTX_get0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char **ukm);
# endif

# define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID    (EVP_PKEY_ALG_CTRL + 1)
# define EVP_PKEY_CTRL_EC_PARAM_ENC             (EVP_PKEY_ALG_CTRL + 2)
# define EVP_PKEY_CTRL_EC_ECDH_COFACTOR         (EVP_PKEY_ALG_CTRL + 3)
# define EVP_PKEY_CTRL_EC_KDF_TYPE              (EVP_PKEY_ALG_CTRL + 4)
# define EVP_PKEY_CTRL_EC_KDF_MD                (EVP_PKEY_ALG_CTRL + 5)
# define EVP_PKEY_CTRL_GET_EC_KDF_MD            (EVP_PKEY_ALG_CTRL + 6)
# define EVP_PKEY_CTRL_EC_KDF_OUTLEN            (EVP_PKEY_ALG_CTRL + 7)
# define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN        (EVP_PKEY_ALG_CTRL + 8)
# define EVP_PKEY_CTRL_EC_KDF_UKM               (EVP_PKEY_ALG_CTRL + 9)
# define EVP_PKEY_CTRL_GET_EC_KDF_UKM           (EVP_PKEY_ALG_CTRL + 10)

/* KDF types */
# define EVP_PKEY_ECDH_KDF_NONE                      1
# define EVP_PKEY_ECDH_KDF_X9_63                     2
/*
 * The old name for EVP_PKEY_ECDH_KDF_X9_63
 *  The ECDH KDF specification has been mistakenly attributed to ANSI X9.62,
 *  it is actually specified in ANSI X9.63.
 *  This identifier is retained for backwards compatibility
 */
# define EVP_PKEY_ECDH_KDF_X9_62   EVP_PKEY_ECDH_KDF_X9_63

/** Enum for the point conversion form as defined in X9.62 (ECDSA)
 *  for the encoding of a elliptic curve point (x,y) */
typedef enum {
        /** the point is encoded as z||x, where the octet z specifies
         *  which solution of the quadratic equation y is  */
    POINT_CONVERSION_COMPRESSED = 2,
        /** the point is encoded as z||x||y, where z is the octet 0x04  */
    POINT_CONVERSION_UNCOMPRESSED = 4,
        /** the point is encoded as z||x||y, where the octet z specifies
         *  which solution of the quadratic equation y is  */
    POINT_CONVERSION_HYBRID = 6
} point_conversion_form_t;

const char *OSSL_EC_curve_nid2name(int nid);

# ifndef OPENSSL_NO_EC
#  include <openssl/asn1.h>
#  include <openssl/symhacks.h>
#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
#   include <openssl/bn.h>
#  endif
#  include <openssl/ecerr.h>

#  ifndef OPENSSL_ECC_MAX_FIELD_BITS
#   define OPENSSL_ECC_MAX_FIELD_BITS 661
#  endif

#  include <openssl/params.h>
#  ifndef OPENSSL_NO_DEPRECATED_3_0
typedef struct ec_method_st EC_METHOD;
#  endif
typedef struct ec_group_st EC_GROUP;
typedef struct ec_point_st EC_POINT;
typedef struct ecpk_parameters_st ECPKPARAMETERS;
typedef struct ec_parameters_st ECPARAMETERS;

/********************************************************************/
/*               EC_METHODs for curves over GF(p)                   */
/********************************************************************/

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/** Returns the basic GFp ec methods which provides the basis for the
 *  optimized methods.
 *  \return  EC_METHOD object
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_simple_method(void);

/** Returns GFp methods using montgomery multiplication.
 *  \return  EC_METHOD object
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_mont_method(void);

/** Returns GFp methods using optimized methods for NIST recommended curves
 *  \return  EC_METHOD object
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nist_method(void);

#   ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
/** Returns 64-bit optimized methods for nistp224
 *  \return  EC_METHOD object
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp224_method(void);

/** Returns 64-bit optimized methods for nistp256
 *  \return  EC_METHOD object
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp256_method(void);

/** Returns 64-bit optimized methods for nistp521
 *  \return  EC_METHOD object
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp521_method(void);
#   endif /* OPENSSL_NO_EC_NISTP_64_GCC_128 */

#   ifndef OPENSSL_NO_EC2M
/********************************************************************/
/*           EC_METHOD for curves over GF(2^m)                      */
/********************************************************************/

/** Returns the basic GF2m ec method
 *  \return  EC_METHOD object
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GF2m_simple_method(void);

#   endif

/********************************************************************/
/*                   EC_GROUP functions                             */
/********************************************************************/

/**
 *  Creates a new EC_GROUP object
 *  \param   meth   EC_METHOD to use
 *  \return  newly created EC_GROUP object or NULL in case of an error.
 */
OSSL_DEPRECATEDIN_3_0 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth);

/** Clears and frees a EC_GROUP object
 *  \param  group  EC_GROUP object to be cleared and freed.
 */
OSSL_DEPRECATEDIN_3_0 void EC_GROUP_clear_free(EC_GROUP *group);

/** Returns the EC_METHOD of the EC_GROUP object.
 *  \param  group  EC_GROUP object
 *  \return EC_METHOD used in this EC_GROUP object.
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);

/** Returns the field type of the EC_METHOD.
 *  \param  meth  EC_METHOD object
 *  \return NID of the underlying field type OID.
 */
OSSL_DEPRECATEDIN_3_0 int EC_METHOD_get_field_type(const EC_METHOD *meth);
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/** Frees a EC_GROUP object
 *  \param  group  EC_GROUP object to be freed.
 */
void EC_GROUP_free(EC_GROUP *group);

/** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD.
 *  \param  dst  destination EC_GROUP object
 *  \param  src  source EC_GROUP object
 *  \return 1 on success and 0 if an error occurred.
 */
int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src);

/** Creates a new EC_GROUP object and copies the content
 *  form src to the newly created EC_KEY object
 *  \param  src  source EC_GROUP object
 *  \return newly created EC_GROUP object or NULL in case of an error.
 */
EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);

/** Sets the generator and its order/cofactor of a EC_GROUP object.
 *  \param  group      EC_GROUP object
 *  \param  generator  EC_POINT object with the generator.
 *  \param  order      the order of the group generated by the generator.
 *  \param  cofactor   the index of the sub-group generated by the generator
 *                     in the group of all points on the elliptic curve.
 *  \return 1 on success and 0 if an error occurred
 */
int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator,
                           const BIGNUM *order, const BIGNUM *cofactor);

/** Returns the generator of a EC_GROUP object.
 *  \param  group  EC_GROUP object
 *  \return the currently used generator (possibly NULL).
 */
const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);

/** Returns the montgomery data for order(Generator)
 *  \param  group  EC_GROUP object
 *  \return the currently used montgomery data (possibly NULL).
*/
BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group);

/** Gets the order of a EC_GROUP
 *  \param  group  EC_GROUP object
 *  \param  order  BIGNUM to which the order is copied
 *  \param  ctx    unused
 *  \return 1 on success and 0 if an error occurred
 */
int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);

/** Gets the order of an EC_GROUP
 *  \param  group  EC_GROUP object
 *  \return the group order
 */
const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group);

/** Gets the number of bits of the order of an EC_GROUP
 *  \param  group  EC_GROUP object
 *  \return number of bits of group order.
 */
int EC_GROUP_order_bits(const EC_GROUP *group);

/** Gets the cofactor of a EC_GROUP
 *  \param  group     EC_GROUP object
 *  \param  cofactor  BIGNUM to which the cofactor is copied
 *  \param  ctx       unused
 *  \return 1 on success and 0 if an error occurred
 */
int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,
                          BN_CTX *ctx);

/** Gets the cofactor of an EC_GROUP
 *  \param  group  EC_GROUP object
 *  \return the group cofactor
 */
const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group);

/** Sets the name of a EC_GROUP object
 *  \param  group  EC_GROUP object
 *  \param  nid    NID of the curve name OID
 */
void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);

/** Returns the curve name of a EC_GROUP object
 *  \param  group  EC_GROUP object
 *  \return NID of the curve name OID or 0 if not set.
 */
int EC_GROUP_get_curve_name(const EC_GROUP *group);

/** Gets the field of an EC_GROUP
 *  \param  group  EC_GROUP object
 *  \return the group field
 */
const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group);

/** Returns the field type of the EC_GROUP.
 *  \param  group  EC_GROUP object
 *  \return NID of the underlying field type OID.
 */
int EC_GROUP_get_field_type(const EC_GROUP *group);

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

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

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

/** Sets the parameters of an ec curve defined by y^2 = x^3 + a*x + b (for GFp)
 *  or y^2 + x*y = x^3 + a*x^2 + b (for GF2m)
 *  \param  group  EC_GROUP object
 *  \param  p      BIGNUM with the prime number (GFp) or the polynomial
 *                 defining the underlying field (GF2m)
 *  \param  a      BIGNUM with parameter a of the equation
 *  \param  b      BIGNUM with parameter b of the equation
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_GROUP_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
                       const BIGNUM *b, BN_CTX *ctx);

/** Gets the parameters of the ec curve defined by y^2 = x^3 + a*x + b (for GFp)
 *  or y^2 + x*y = x^3 + a*x^2 + b (for GF2m)
 *  \param  group  EC_GROUP object
 *  \param  p      BIGNUM with the prime number (GFp) or the polynomial
 *                 defining the underlying field (GF2m)
 *  \param  a      BIGNUM for parameter a of the equation
 *  \param  b      BIGNUM for parameter b of the equation
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_GROUP_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b,
                       BN_CTX *ctx);

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/** Sets the parameters of an ec curve. Synonym for EC_GROUP_set_curve
 *  \param  group  EC_GROUP object
 *  \param  p      BIGNUM with the prime number (GFp) or the polynomial
 *                 defining the underlying field (GF2m)
 *  \param  a      BIGNUM with parameter a of the equation
 *  \param  b      BIGNUM with parameter b of the equation
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GFp(EC_GROUP *group,
                                                 const BIGNUM *p,
                                                 const BIGNUM *a,
                                                 const BIGNUM *b,
                                                 BN_CTX *ctx);

/** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve
 *  \param  group  EC_GROUP object
 *  \param  p      BIGNUM with the prime number (GFp) or the polynomial
 *                 defining the underlying field (GF2m)
 *  \param  a      BIGNUM for parameter a of the equation
 *  \param  b      BIGNUM for parameter b of the equation
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GFp(const EC_GROUP *group,
                                                 BIGNUM *p,
                                                 BIGNUM *a, BIGNUM *b,
                                                 BN_CTX *ctx);

#   ifndef OPENSSL_NO_EC2M
/** Sets the parameter of an ec curve. Synonym for EC_GROUP_set_curve
 *  \param  group  EC_GROUP object
 *  \param  p      BIGNUM with the prime number (GFp) or the polynomial
 *                 defining the underlying field (GF2m)
 *  \param  a      BIGNUM with parameter a of the equation
 *  \param  b      BIGNUM with parameter b of the equation
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GF2m(EC_GROUP *group,
                                                  const BIGNUM *p,
                                                  const BIGNUM *a,
                                                  const BIGNUM *b,
                                                  BN_CTX *ctx);

/** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve
 *  \param  group  EC_GROUP object
 *  \param  p      BIGNUM with the prime number (GFp) or the polynomial
 *                 defining the underlying field (GF2m)
 *  \param  a      BIGNUM for parameter a of the equation
 *  \param  b      BIGNUM for parameter b of the equation
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group,
                                                  BIGNUM *p,
                                                  BIGNUM *a, BIGNUM *b,
                                                  BN_CTX *ctx);
#   endif /* OPENSSL_NO_EC2M */
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/** Returns the number of bits needed to represent a field element
 *  \param  group  EC_GROUP object
 *  \return number of bits needed to represent a field element
 */
int EC_GROUP_get_degree(const EC_GROUP *group);

/** Checks whether the parameter in the EC_GROUP define a valid ec group
 *  \param  group  EC_GROUP object
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 if group is a valid ec group and 0 otherwise
 */
int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);

/** Checks whether the discriminant of the elliptic curve is zero or not
 *  \param  group  EC_GROUP object
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 if the discriminant is not zero and 0 otherwise
 */
int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);

/** Compares two EC_GROUP objects
 *  \param  a    first EC_GROUP object
 *  \param  b    second EC_GROUP object
 *  \param  ctx  BN_CTX object (optional)
 *  \return 0 if the groups are equal, 1 if not, or -1 on error
 */
int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);

/*
 * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after
 * choosing an appropriate EC_METHOD
 */

/** Creates a new EC_GROUP object with the specified parameters defined
 *  over GFp (defined by the equation y^2 = x^3 + a*x + b)
 *  \param  p    BIGNUM with the prime number
 *  \param  a    BIGNUM with the parameter a of the equation
 *  \param  b    BIGNUM with the parameter b of the equation
 *  \param  ctx  BN_CTX object (optional)
 *  \return newly created EC_GROUP object with the specified parameters
 */
EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a,
                                 const BIGNUM *b, BN_CTX *ctx);
#  ifndef OPENSSL_NO_EC2M
/** Creates a new EC_GROUP object with the specified parameters defined
 *  over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
 *  \param  p    BIGNUM with the polynomial defining the underlying field
 *  \param  a    BIGNUM with the parameter a of the equation
 *  \param  b    BIGNUM with the parameter b of the equation
 *  \param  ctx  BN_CTX object (optional)
 *  \return newly created EC_GROUP object with the specified parameters
 */
EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a,
                                  const BIGNUM *b, BN_CTX *ctx);
#  endif

/**
 * Creates a EC_GROUP object with a curve specified by parameters.
 * The parameters may be explicit or a named curve,
 *  \param  params A list of parameters describing the group.
 *  \param  libctx The associated library context or NULL for the default
 *                 context
 *  \param  propq  A property query string
 *  \return newly created EC_GROUP object with specified parameters or NULL
 *          if an error occurred
 */
EC_GROUP *EC_GROUP_new_from_params(const OSSL_PARAM params[],
                                   OSSL_LIB_CTX *libctx, const char *propq);

/**
 * Creates a EC_GROUP object with a curve specified by a NID
 *  \param  libctx The associated library context or NULL for the default
 *                 context
 *  \param  propq  A property query string
 *  \param  nid    NID of the OID of the curve name
 *  \return newly created EC_GROUP object with specified curve or NULL
 *          if an error occurred
 */
EC_GROUP *EC_GROUP_new_by_curve_name_ex(OSSL_LIB_CTX *libctx, const char *propq,
                                        int nid);

/**
 * Creates a EC_GROUP object with a curve specified by a NID. Same as
 * EC_GROUP_new_by_curve_name_ex but the libctx and propq are always
 * NULL.
 *  \param  nid    NID of the OID of the curve name
 *  \return newly created EC_GROUP object with specified curve or NULL
 *          if an error occurred
 */
EC_GROUP *EC_GROUP_new_by_curve_name(int nid);

/** Creates a new EC_GROUP object from an ECPARAMETERS object
 *  \param  params  pointer to the ECPARAMETERS object
 *  \return newly created EC_GROUP object with specified curve or NULL
 *          if an error occurred
 */
EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params);

/** Creates an ECPARAMETERS object for the given EC_GROUP object.
 *  \param  group   pointer to the EC_GROUP object
 *  \param  params  pointer to an existing ECPARAMETERS object or NULL
 *  \return pointer to the new ECPARAMETERS object or NULL
 *          if an error occurred.
 */
ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group,
                                        ECPARAMETERS *params);

/** Creates a new EC_GROUP object from an ECPKPARAMETERS object
 *  \param  params  pointer to an existing ECPKPARAMETERS object, or NULL
 *  \return newly created EC_GROUP object with specified curve, or NULL
 *          if an error occurred
 */
EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params);

/** Creates an ECPKPARAMETERS object for the given EC_GROUP object.
 *  \param  group   pointer to the EC_GROUP object
 *  \param  params  pointer to an existing ECPKPARAMETERS object or NULL
 *  \return pointer to the new ECPKPARAMETERS object or NULL
 *          if an error occurred.
 */
ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group,
                                            ECPKPARAMETERS *params);

/********************************************************************/
/*               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 is 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);

const char *EC_curve_nid2nist(int nid);
int EC_curve_nist2nid(const char *name);
int EC_GROUP_check_named_curve(const EC_GROUP *group, int nist_only,
                               BN_CTX *ctx);

/********************************************************************/
/*                    EC_POINT functions                            */
/********************************************************************/

/** Creates a new EC_POINT object for the specified EC_GROUP
 *  \param  group  EC_GROUP the underlying EC_GROUP object
 *  \return newly created EC_POINT object or NULL if an error occurred
 */
EC_POINT *EC_POINT_new(const EC_GROUP *group);

/** Frees a EC_POINT object
 *  \param  point  EC_POINT object to be freed
 */
void EC_POINT_free(EC_POINT *point);

/** Clears and frees a EC_POINT object
 *  \param  point  EC_POINT object to be cleared and freed
 */
void EC_POINT_clear_free(EC_POINT *point);

/** Copies EC_POINT object
 *  \param  dst  destination EC_POINT object
 *  \param  src  source EC_POINT object
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);

/** Creates a new EC_POINT object and copies the content of the supplied
 *  EC_POINT
 *  \param  src    source EC_POINT object
 *  \param  group  underlying the EC_GROUP object
 *  \return newly created EC_POINT object or NULL if an error occurred
 */
EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);

/** Sets a point to infinity (neutral element)
 *  \param  group  underlying EC_GROUP object
 *  \param  point  EC_POINT to set to infinity
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/** Returns the EC_METHOD used in EC_POINT object
 *  \param  point  EC_POINT object
 *  \return the EC_METHOD used
 */
OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);

/** Sets the jacobian projective coordinates of a EC_POINT over GFp
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM with the x-coordinate
 *  \param  y      BIGNUM with the y-coordinate
 *  \param  z      BIGNUM with the z-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_Jprojective_coordinates_GFp
                      (const EC_GROUP *group, EC_POINT *p,
                       const BIGNUM *x, const BIGNUM *y, const BIGNUM *z,
                       BN_CTX *ctx);

/** Gets the jacobian projective coordinates of a EC_POINT over GFp
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM for the x-coordinate
 *  \param  y      BIGNUM for the y-coordinate
 *  \param  z      BIGNUM for the z-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_Jprojective_coordinates_GFp
                      (const EC_GROUP *group, const EC_POINT *p,
                       BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx);
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/** Sets the affine coordinates of an EC_POINT
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM with the x-coordinate
 *  \param  y      BIGNUM with the y-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_set_affine_coordinates(const EC_GROUP *group, EC_POINT *p,
                                    const BIGNUM *x, const BIGNUM *y,
                                    BN_CTX *ctx);

/** Gets the affine coordinates of an EC_POINT.
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM for the x-coordinate
 *  \param  y      BIGNUM for the y-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_get_affine_coordinates(const EC_GROUP *group, const EC_POINT *p,
                                    BIGNUM *x, BIGNUM *y, BN_CTX *ctx);

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/** Sets the affine coordinates of an EC_POINT. A synonym of
 *  EC_POINT_set_affine_coordinates
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM with the x-coordinate
 *  \param  y      BIGNUM with the y-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GFp
                      (const EC_GROUP *group, EC_POINT *p,
                       const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);

/** Gets the affine coordinates of an EC_POINT. A synonym of
 *  EC_POINT_get_affine_coordinates
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM for the x-coordinate
 *  \param  y      BIGNUM for the y-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GFp
                      (const EC_GROUP *group, const EC_POINT *p,
                       BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/** Sets the x9.62 compressed coordinates of a EC_POINT
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM with x-coordinate
 *  \param  y_bit  integer with the y-Bit (either 0 or 1)
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *p,
                                        const BIGNUM *x, int y_bit,
                                        BN_CTX *ctx);

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of
 *  EC_POINT_set_compressed_coordinates
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM with x-coordinate
 *  \param  y_bit  integer with the y-Bit (either 0 or 1)
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GFp
                      (const EC_GROUP *group, EC_POINT *p,
                       const BIGNUM *x, int y_bit, BN_CTX *ctx);
#   ifndef OPENSSL_NO_EC2M
/** Sets the affine coordinates of an EC_POINT. A synonym of
 *  EC_POINT_set_affine_coordinates
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM with the x-coordinate
 *  \param  y      BIGNUM with the y-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GF2m
                      (const EC_GROUP *group, EC_POINT *p,
                       const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);

/** Gets the affine coordinates of an EC_POINT. A synonym of
 *  EC_POINT_get_affine_coordinates
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM for the x-coordinate
 *  \param  y      BIGNUM for the y-coordinate
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GF2m
                      (const EC_GROUP *group, const EC_POINT *p,
                       BIGNUM *x, BIGNUM *y, BN_CTX *ctx);

/** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of
 *  EC_POINT_set_compressed_coordinates
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  x      BIGNUM with x-coordinate
 *  \param  y_bit  integer with the y-Bit (either 0 or 1)
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GF2m
                      (const EC_GROUP *group, EC_POINT *p,
                       const BIGNUM *x, int y_bit, BN_CTX *ctx);
#   endif
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/** Encodes a EC_POINT object to a octet string
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  form   point conversion form
 *  \param  buf    memory buffer for the result. If NULL the function returns
 *                 required buffer size.
 *  \param  len    length of the memory buffer
 *  \param  ctx    BN_CTX object (optional)
 *  \return the length of the encoded octet string or 0 if an error occurred
 */
size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
                          point_conversion_form_t form,
                          unsigned char *buf, size_t len, BN_CTX *ctx);

/** Decodes a EC_POINT from a octet string
 *  \param  group  underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \param  buf    memory buffer with the encoded ec point
 *  \param  len    length of the encoded ec point
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
                       const unsigned char *buf, size_t len, BN_CTX *ctx);

/** Encodes an EC_POINT object to an allocated octet string
 *  \param  group  underlying EC_GROUP object
 *  \param  point  EC_POINT object
 *  \param  form   point conversion form
 *  \param  pbuf   returns pointer to allocated buffer
 *  \param  ctx    BN_CTX object (optional)
 *  \return the length of the encoded octet string or 0 if an error occurred
 */
size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point,
                          point_conversion_form_t form,
                          unsigned char **pbuf, BN_CTX *ctx);

/* other interfaces to point2oct/oct2point: */
#  ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0 BIGNUM *EC_POINT_point2bn(const EC_GROUP *,
                                                const EC_POINT *,
                                                point_conversion_form_t form,
                                                BIGNUM *, BN_CTX *);
OSSL_DEPRECATEDIN_3_0 EC_POINT *EC_POINT_bn2point(const EC_GROUP *,
                                                  const BIGNUM *,
                                                  EC_POINT *, BN_CTX *);
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

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 *);

/********************************************************************/
/*         functions for doing EC_POINT arithmetic                  */
/********************************************************************/

/** Computes the sum of two EC_POINT
 *  \param  group  underlying EC_GROUP object
 *  \param  r      EC_POINT object for the result (r = a + b)
 *  \param  a      EC_POINT object with the first summand
 *  \param  b      EC_POINT object with the second summand
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
                 const EC_POINT *b, BN_CTX *ctx);

/** Computes the double of a EC_POINT
 *  \param  group  underlying EC_GROUP object
 *  \param  r      EC_POINT object for the result (r = 2 * a)
 *  \param  a      EC_POINT object
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
                 BN_CTX *ctx);

/** Computes the inverse of a EC_POINT
 *  \param  group  underlying EC_GROUP object
 *  \param  a      EC_POINT object to be inverted (it's used for the result as well)
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);

/** Checks whether the point is the neutral element of the group
 *  \param  group  the underlying EC_GROUP object
 *  \param  p      EC_POINT object
 *  \return 1 if the point is the neutral element and 0 otherwise
 */
int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);

/** Checks whether the point is on the curve
 *  \param  group  underlying EC_GROUP object
 *  \param  point  EC_POINT object to check
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 if the point is on the curve, 0 if not, or -1 on error
 */
int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point,
                         BN_CTX *ctx);

/** Compares two EC_POINTs
 *  \param  group  underlying EC_GROUP object
 *  \param  a      first EC_POINT object
 *  \param  b      second EC_POINT object
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 if the points are not equal, 0 if they are, or -1 on error
 */
int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b,
                 BN_CTX *ctx);

#  ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0 int EC_POINT_make_affine(const EC_GROUP *group,
                                               EC_POINT *point, BN_CTX *ctx);
OSSL_DEPRECATEDIN_3_0 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num,
                                                EC_POINT *points[], BN_CTX *ctx);

/** Computes r = generator * n + sum_{i=0}^{num-1} p[i] * m[i]
 *  \param  group  underlying EC_GROUP object
 *  \param  r      EC_POINT object for the result
 *  \param  n      BIGNUM with the multiplier for the group generator (optional)
 *  \param  num    number further summands
 *  \param  p      array of size num of EC_POINT objects
 *  \param  m      array of size num of BIGNUM objects
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 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);
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/** Computes r = generator * n + q * m
 *  \param  group  underlying EC_GROUP object
 *  \param  r      EC_POINT object for the result
 *  \param  n      BIGNUM with the multiplier for the group generator (optional)
 *  \param  q      EC_POINT object with the first factor of the second summand
 *  \param  m      BIGNUM with the second factor of the second summand
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
                 const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/** Stores multiples of generator for faster point multiplication
 *  \param  group  EC_GROUP object
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);

/** Reports whether a precomputation has been done
 *  \param  group  EC_GROUP object
 *  \return 1 if a pre-computation has been done and 0 otherwise
 */
OSSL_DEPRECATEDIN_3_0 int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/********************************************************************/
/*                       ASN1 stuff                                 */
/********************************************************************/

DECLARE_ASN1_ITEM(ECPKPARAMETERS)
DECLARE_ASN1_ALLOC_FUNCTIONS(ECPKPARAMETERS)
DECLARE_ASN1_ITEM(ECPARAMETERS)
DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS)

/*
 * 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 *);
#  ifndef OPENSSL_NO_EC2M
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);
#  endif

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(EC_GROUP, i2d_ECPKParameters, bp, x)
#  define d2i_ECPKParameters_fp(fp,x) \
    (EC_GROUP *)ASN1_d2i_fp(NULL, (d2i_of_void *)d2i_ECPKParameters, (fp), \
                            (void **)(x))
#  define i2d_ECPKParameters_fp(fp,x) \
    ASN1_i2d_fp((i2d_of_void *)i2d_ECPKParameters, (fp), (void *)(x))

#  ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print(BIO *bp, const EC_GROUP *x,
                                               int off);
#   ifndef OPENSSL_NO_STDIO
OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x,
                                                  int off);
#   endif
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

/********************************************************************/
/*                      EC_KEY functions                            */
/********************************************************************/

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

/* some values for the flags field */
#  define EC_FLAG_SM2_RANGE              0x0004
#  define EC_FLAG_COFACTOR_ECDH          0x1000
#  define EC_FLAG_CHECK_NAMED_GROUP      0x2000
#  define EC_FLAG_CHECK_NAMED_GROUP_NIST 0x4000
#  define EC_FLAG_CHECK_NAMED_GROUP_MASK \
    (EC_FLAG_CHECK_NAMED_GROUP | EC_FLAG_CHECK_NAMED_GROUP_NIST)

/* Deprecated flags -  it was using 0x01..0x02 */
#  define EC_FLAG_NON_FIPS_ALLOW         0x0000
#  define EC_FLAG_FIPS_CHECKED           0x0000

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/**
 *  Creates a new EC_KEY object.
 *  \param  ctx  The library context for to use for this EC_KEY. May be NULL in
 *               which case the default library context is used.
 *  \return EC_KEY object or NULL if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_ex(OSSL_LIB_CTX *ctx, const char *propq);

/**
 *  Creates a new EC_KEY object. Same as calling EC_KEY_new_ex with a
 *  NULL library context
 *  \return EC_KEY object or NULL if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new(void);

OSSL_DEPRECATEDIN_3_0 int EC_KEY_get_flags(const EC_KEY *key);

OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_flags(EC_KEY *key, int flags);

OSSL_DEPRECATEDIN_3_0 void EC_KEY_clear_flags(EC_KEY *key, int flags);

OSSL_DEPRECATEDIN_3_0 int EC_KEY_decoded_from_explicit_params(const EC_KEY *key);

/**
 *  Creates a new EC_KEY object using a named curve as underlying
 *  EC_GROUP object.
 *  \param  ctx   The library context for to use for this EC_KEY. May be NULL in
 *                which case the default library context is used.
 *  \param  propq Any property query string
 *  \param  nid   NID of the named curve.
 *  \return EC_KEY object or NULL if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name_ex(OSSL_LIB_CTX *ctx,
                                                          const char *propq,
                                                          int nid);

/**
 *  Creates a new EC_KEY object using a named curve as underlying
 *  EC_GROUP object. Same as calling EC_KEY_new_by_curve_name_ex with a NULL
 *  library context and property query string.
 *  \param  nid  NID of the named curve.
 *  \return EC_KEY object or NULL if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name(int nid);

/** Frees a EC_KEY object.
 *  \param  key  EC_KEY object to be freed.
 */
OSSL_DEPRECATEDIN_3_0 void EC_KEY_free(EC_KEY *key);

/** Copies a EC_KEY object.
 *  \param  dst  destination EC_KEY object
 *  \param  src  src EC_KEY object
 *  \return dst or NULL if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src);

/** Creates a new EC_KEY object and copies the content from src to it.
 *  \param  src  the source EC_KEY object
 *  \return newly created EC_KEY object or NULL if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_dup(const EC_KEY *src);

/** Increases the internal reference count of a EC_KEY object.
 *  \param  key  EC_KEY object
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_up_ref(EC_KEY *key);

/** Returns the ENGINE object of a EC_KEY object
 *  \param  eckey  EC_KEY object
 *  \return the ENGINE object (possibly NULL).
 */
OSSL_DEPRECATEDIN_3_0 ENGINE *EC_KEY_get0_engine(const EC_KEY *eckey);

/** Returns the EC_GROUP object of a EC_KEY object
 *  \param  key  EC_KEY object
 *  \return the EC_GROUP object (possibly NULL).
 */
OSSL_DEPRECATEDIN_3_0 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);

/** Sets the EC_GROUP of a EC_KEY object.
 *  \param  key    EC_KEY object
 *  \param  group  EC_GROUP to use in the EC_KEY object (note: the EC_KEY
 *                 object will use an own copy of the EC_GROUP).
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);

/** Returns the private key of a EC_KEY object.
 *  \param  key  EC_KEY object
 *  \return a BIGNUM with the private key (possibly NULL).
 */
OSSL_DEPRECATEDIN_3_0 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);

/** Sets the private key of a EC_KEY object.
 *  \param  key  EC_KEY object
 *  \param  prv  BIGNUM with the private key (note: the EC_KEY object
 *               will use an own copy of the BIGNUM).
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);

/** Returns the public key of a EC_KEY object.
 *  \param  key  the EC_KEY object
 *  \return a EC_POINT object with the public key (possibly NULL)
 */
OSSL_DEPRECATEDIN_3_0 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);

/** Sets the public key of a EC_KEY object.
 *  \param  key  EC_KEY object
 *  \param  pub  EC_POINT object with the public key (note: the EC_KEY object
 *               will use an own copy of the EC_POINT object).
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);

OSSL_DEPRECATEDIN_3_0 unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);
OSSL_DEPRECATEDIN_3_0 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key);
OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_conv_form(EC_KEY *eckey,
                                                point_conversion_form_t cform);
#  endif /*OPENSSL_NO_DEPRECATED_3_0 */

#  define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \
    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef)

#  ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg);
OSSL_DEPRECATEDIN_3_0 void *EC_KEY_get_ex_data(const EC_KEY *key, int idx);

/* wrapper functions for the underlying EC_GROUP object */
OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag);

/** Creates a table of pre-computed multiples of the generator to
 *  accelerate further EC_KEY operations.
 *  \param  key  EC_KEY object
 *  \param  ctx  BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);

/** Creates a new ec private (and optional a new public) key.
 *  \param  key  EC_KEY object
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_generate_key(EC_KEY *key);

/** Verifies that a private and/or public key is valid.
 *  \param  key  the EC_KEY object
 *  \return 1 on success and 0 otherwise.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_check_key(const EC_KEY *key);

/** Indicates if an EC_KEY can be used for signing.
 *  \param  eckey  the EC_KEY object
 *  \return 1 if can can sign and 0 otherwise.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_can_sign(const EC_KEY *eckey);

/** Sets a public key from affine coordinates performing
 *  necessary NIST PKV tests.
 *  \param  key  the EC_KEY object
 *  \param  x    public key x coordinate
 *  \param  y    public key y coordinate
 *  \return 1 on success and 0 otherwise.
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key,
                                                                   BIGNUM *x,
                                                                   BIGNUM *y);

/** Encodes an EC_KEY public key to an allocated octet string
 *  \param  key    key to encode
 *  \param  form   point conversion form
 *  \param  pbuf   returns pointer to allocated buffer
 *  \param  ctx    BN_CTX object (optional)
 *  \return the length of the encoded octet string or 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_key2buf(const EC_KEY *key,
                                            point_conversion_form_t form,
                                            unsigned char **pbuf, BN_CTX *ctx);

/** Decodes a EC_KEY public key from a octet string
 *  \param  key    key to decode
 *  \param  buf    memory buffer with the encoded ec point
 *  \param  len    length of the encoded ec point
 *  \param  ctx    BN_CTX object (optional)
 *  \return 1 on success and 0 if an error occurred
 */

OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf,
                                         size_t len, BN_CTX *ctx);

/** Decodes an EC_KEY private key from an octet string
 *  \param  key    key to decode
 *  \param  buf    memory buffer with the encoded private key
 *  \param  len    length of the encoded key
 *  \return 1 on success and 0 if an error occurred
 */

OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2priv(EC_KEY *key, const unsigned char *buf,
                                          size_t len);

/** Encodes a EC_KEY private key to an octet string
 *  \param  key    key to encode
 *  \param  buf    memory buffer for the result. If NULL the function returns
 *                 required buffer size.
 *  \param  len    length of the memory buffer
 *  \return the length of the encoded octet string or 0 if an error occurred
 */

OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2oct(const EC_KEY *key,
                                             unsigned char *buf, size_t len);

/** Encodes an EC_KEY private key to an allocated octet string
 *  \param  eckey  key to encode
 *  \param  pbuf   returns pointer to allocated buffer
 *  \return the length of the encoded octet string or 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2buf(const EC_KEY *eckey,
                                             unsigned char **pbuf);

/********************************************************************/
/*        de- and encoding functions for SEC1 ECPrivateKey          */
/********************************************************************/

/** Decodes a private key from a memory buffer.
 *  \param  key  a pointer to a EC_KEY object which should be used (or NULL)
 *  \param  in   pointer to memory with the DER encoded private key
 *  \param  len  length of the DER encoded private key
 *  \return the decoded private key or NULL if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECPrivateKey(EC_KEY **key,
                                               const unsigned char **in,
                                               long len);

/** Encodes a private key object and stores the result in a buffer.
 *  \param  key  the EC_KEY object to encode
 *  \param  out  the buffer for the result (if NULL the function returns number
 *               of bytes needed).
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int i2d_ECPrivateKey(const EC_KEY *key,
                                           unsigned char **out);

/********************************************************************/
/*        de- and encoding functions for EC parameters              */
/********************************************************************/

/** Decodes ec parameter from a memory buffer.
 *  \param  key  a pointer to a EC_KEY object which should be used (or NULL)
 *  \param  in   pointer to memory with the DER encoded ec parameters
 *  \param  len  length of the DER encoded ec parameters
 *  \return a EC_KEY object with the decoded parameters or NULL if an error
 *          occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECParameters(EC_KEY **key,
                                               const unsigned char **in,
                                               long len);

/** Encodes ec parameter and stores the result in a buffer.
 *  \param  key  the EC_KEY object with ec parameters to encode
 *  \param  out  the buffer for the result (if NULL the function returns number
 *               of bytes needed).
 *  \return 1 on success and 0 if an error occurred.
 */
OSSL_DEPRECATEDIN_3_0 int i2d_ECParameters(const EC_KEY *key,
                                           unsigned char **out);

/********************************************************************/
/*         de- and encoding functions for EC public key             */
/*         (octet string, not DER -- hence 'o2i' and 'i2o')         */
/********************************************************************/

/** Decodes an ec public key from a octet string.
 *  \param  key  a pointer to a EC_KEY object which should be used
 *  \param  in   memory buffer with the encoded public key
 *  \param  len  length of the encoded public key
 *  \return EC_KEY object with decoded public key or NULL if an error
 *          occurred.
 */
OSSL_DEPRECATEDIN_3_0 EC_KEY *o2i_ECPublicKey(EC_KEY **key,
                                              const unsigned char **in, long len);

/** Encodes an ec public key in an octet string.
 *  \param  key  the EC_KEY object with the public key
 *  \param  out  the buffer for the result (if NULL the function returns number
 *               of bytes needed).
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int i2o_ECPublicKey(const EC_KEY *key, unsigned char **out);

/** Prints out the ec parameters on human readable form.
 *  \param  bp   BIO object to which the information is printed
 *  \param  key  EC_KEY object
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int ECParameters_print(BIO *bp, const EC_KEY *key);

/** Prints out the contents of a EC_KEY object
 *  \param  bp   BIO object to which the information is printed
 *  \param  key  EC_KEY object
 *  \param  off  line offset
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off);

#   ifndef OPENSSL_NO_STDIO
/** Prints out the ec parameters on human readable form.
 *  \param  fp   file descriptor to which the information is printed
 *  \param  key  EC_KEY object
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int ECParameters_print_fp(FILE *fp, const EC_KEY *key);

/** Prints out the contents of a EC_KEY object
 *  \param  fp   file descriptor to which the information is printed
 *  \param  key  EC_KEY object
 *  \param  off  line offset
 *  \return 1 on success and 0 if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
#   endif /* OPENSSL_NO_STDIO */

OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_OpenSSL(void);
OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_default_method(void);
OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_default_method(const EC_KEY_METHOD *meth);
OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key);
OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth);
OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_method(ENGINE *engine);

/** The old name for ecdh_KDF_X9_63
 *  The ECDH KDF specification has been mistakingly attributed to ANSI X9.62,
 *  it is actually specified in ANSI X9.63.
 *  This identifier is retained for backwards compatibility
 */
OSSL_DEPRECATEDIN_3_0 int ECDH_KDF_X9_62(unsigned char *out, size_t outlen,
                                         const unsigned char *Z, size_t Zlen,
                                         const unsigned char *sinfo,
                                         size_t sinfolen, const EVP_MD *md);

OSSL_DEPRECATEDIN_3_0 int ECDH_compute_key(void *out, size_t outlen,
                                           const EC_POINT *pub_key,
                                           const EC_KEY *ecdh,
                                           void *(*KDF)(const void *in,
                                                        size_t inlen, void *out,
                                                        size_t *outlen));
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

typedef struct ECDSA_SIG_st ECDSA_SIG;

/** Allocates and initialize a ECDSA_SIG structure
 *  \return pointer to a ECDSA_SIG structure or NULL if an error occurred
 */
ECDSA_SIG *ECDSA_SIG_new(void);

/** frees a ECDSA_SIG structure
 *  \param  sig  pointer to the ECDSA_SIG structure
 */
void ECDSA_SIG_free(ECDSA_SIG *sig);

/** i2d_ECDSA_SIG encodes content of ECDSA_SIG (note: this function modifies *pp
 *  (*pp += length of the DER encoded signature)).
 *  \param  sig  pointer to the ECDSA_SIG object
 *  \param  pp   pointer to a unsigned char pointer for the output or NULL
 *  \return the length of the DER encoded ECDSA_SIG object or a negative value
 *          on error
 */
DECLARE_ASN1_ENCODE_FUNCTIONS_only(ECDSA_SIG, ECDSA_SIG)

/** d2i_ECDSA_SIG decodes an ECDSA signature (note: this function modifies *pp
 *  (*pp += len)).
 *  \param  sig  pointer to ECDSA_SIG pointer (may be NULL)
 *  \param  pp   memory buffer with the DER encoded signature
 *  \param  len  length of the buffer
 *  \return pointer to the decoded ECDSA_SIG structure (or NULL)
 */

/** Accessor for r and s fields of ECDSA_SIG
 *  \param  sig  pointer to ECDSA_SIG structure
 *  \param  pr   pointer to BIGNUM pointer for r (may be NULL)
 *  \param  ps   pointer to BIGNUM pointer for s (may be NULL)
 */
void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);

/** Accessor for r field of ECDSA_SIG
 *  \param  sig  pointer to ECDSA_SIG structure
 */
const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig);

/** Accessor for s field of ECDSA_SIG
 *  \param  sig  pointer to ECDSA_SIG structure
 */
const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig);

/** Setter for r and s fields of ECDSA_SIG
 *  \param  sig  pointer to ECDSA_SIG structure
 *  \param  r    pointer to BIGNUM for r
 *  \param  s    pointer to BIGNUM for s
 */
int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s);

#  ifndef OPENSSL_NO_DEPRECATED_3_0
/** Computes the ECDSA signature of the given hash value using
 *  the supplied private key and returns the created signature.
 *  \param  dgst      pointer to the hash value
 *  \param  dgst_len  length of the hash value
 *  \param  eckey     EC_KEY object containing a private EC key
 *  \return pointer to a ECDSA_SIG structure or NULL if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst,
                                               int dgst_len, EC_KEY *eckey);

/** Computes ECDSA signature of a given hash value using the supplied
 *  private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
 *  \param  dgst     pointer to the hash value to sign
 *  \param  dgstlen  length of the hash value
 *  \param  kinv     BIGNUM with a pre-computed inverse k (optional)
 *  \param  rp       BIGNUM with a pre-computed rp value (optional),
 *                   see ECDSA_sign_setup
 *  \param  eckey    EC_KEY object containing a private EC key
 *  \return pointer to a ECDSA_SIG structure or NULL if an error occurred
 */
OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst,
                                                  int dgstlen, const BIGNUM *kinv,
                                                  const BIGNUM *rp, EC_KEY *eckey);

/** Verifies that the supplied signature is a valid ECDSA
 *  signature of the supplied hash value using the supplied public key.
 *  \param  dgst      pointer to the hash value
 *  \param  dgst_len  length of the hash value
 *  \param  sig       ECDSA_SIG structure
 *  \param  eckey     EC_KEY object containing a public EC key
 *  \return 1 if the signature is valid, 0 if the signature is invalid
 *          and -1 on error
 */
OSSL_DEPRECATEDIN_3_0 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
                                          const ECDSA_SIG *sig, EC_KEY *eckey);

/** Precompute parts of the signing operation
 *  \param  eckey  EC_KEY object containing a private EC key
 *  \param  ctx    BN_CTX object (optional)
 *  \param  kinv   BIGNUM pointer for the inverse of k
 *  \param  rp     BIGNUM pointer for x coordinate of k * generator
 *  \return 1 on success and 0 otherwise
 */
OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx,
                                           BIGNUM **kinv, BIGNUM **rp);

/** Computes ECDSA signature of a given hash value using the supplied
 *  private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
 *  \param  type     this parameter is ignored
 *  \param  dgst     pointer to the hash value to sign
 *  \param  dgstlen  length of the hash value
 *  \param  sig      memory for the DER encoded created signature
 *  \param  siglen   pointer to the length of the returned signature
 *  \param  eckey    EC_KEY object containing a private EC key
 *  \return 1 on success and 0 otherwise
 */
OSSL_DEPRECATEDIN_3_0 int ECDSA_sign(int type, const unsigned char *dgst,
                                     int dgstlen, unsigned char *sig,
                                     unsigned int *siglen, EC_KEY *eckey);

/** Computes ECDSA signature of a given hash value using the supplied
 *  private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
 *  \param  type     this parameter is ignored
 *  \param  dgst     pointer to the hash value to sign
 *  \param  dgstlen  length of the hash value
 *  \param  sig      buffer to hold the DER encoded signature
 *  \param  siglen   pointer to the length of the returned signature
 *  \param  kinv     BIGNUM with a pre-computed inverse k (optional)
 *  \param  rp       BIGNUM with a pre-computed rp value (optional),
 *                   see ECDSA_sign_setup
 *  \param  eckey    EC_KEY object containing a private EC key
 *  \return 1 on success and 0 otherwise
 */
OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_ex(int type, const unsigned char *dgst,
                                        int dgstlen, unsigned char *sig,
                                        unsigned int *siglen, const BIGNUM *kinv,
                                        const BIGNUM *rp, EC_KEY *eckey);

/** Verifies that the given signature is valid ECDSA signature
 *  of the supplied hash value using the specified public key.
 *  \param  type     this parameter is ignored
 *  \param  dgst     pointer to the hash value
 *  \param  dgstlen  length of the hash value
 *  \param  sig      pointer to the DER encoded signature
 *  \param  siglen   length of the DER encoded signature
 *  \param  eckey    EC_KEY object containing a public EC key
 *  \return 1 if the signature is valid, 0 if the signature is invalid
 *          and -1 on error
 */
OSSL_DEPRECATEDIN_3_0 int ECDSA_verify(int type, const unsigned char *dgst,
                                       int dgstlen, const unsigned char *sig,
                                       int siglen, EC_KEY *eckey);

/** Returns the maximum length of the DER encoded signature
 *  \param  eckey  EC_KEY object
 *  \return numbers of bytes required for the DER encoded signature
 */
OSSL_DEPRECATEDIN_3_0 int ECDSA_size(const EC_KEY *eckey);

/********************************************************************/
/*  EC_KEY_METHOD constructors, destructors, writers and accessors  */
/********************************************************************/

OSSL_DEPRECATEDIN_3_0 EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth);
OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_free(EC_KEY_METHOD *meth);
OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_init
                      (EC_KEY_METHOD *meth,
                       int (*init)(EC_KEY *key),
                       void (*finish)(EC_KEY *key),
                       int (*copy)(EC_KEY *dest, const EC_KEY *src),
                       int (*set_group)(EC_KEY *key, const EC_GROUP *grp),
                       int (*set_private)(EC_KEY *key, const BIGNUM *priv_key),
                       int (*set_public)(EC_KEY *key, const EC_POINT *pub_key));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth,
                                                    int (*keygen)(EC_KEY *key));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_compute_key
                      (EC_KEY_METHOD *meth,
                       int (*ckey)(unsigned char **psec, size_t *pseclen,
                                   const EC_POINT *pub_key, const EC_KEY *ecdh));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_sign
                      (EC_KEY_METHOD *meth,
                       int (*sign)(int type, const unsigned char *dgst,
                                   int dlen, unsigned char *sig,
                                   unsigned int *siglen,
                                   const BIGNUM *kinv, const BIGNUM *r,
                                   EC_KEY *eckey),
                       int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
                                         BIGNUM **kinvp, BIGNUM **rp),
                       ECDSA_SIG *(*sign_sig)(const unsigned char *dgst,
                                              int dgst_len,
                                              const BIGNUM *in_kinv,
                                              const BIGNUM *in_r,
                                              EC_KEY *eckey));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_verify
                      (EC_KEY_METHOD *meth,
                       int (*verify)(int type, const unsigned
                                     char *dgst, int dgst_len,
                                     const unsigned char *sigbuf,
                                     int sig_len, EC_KEY *eckey),
                       int (*verify_sig)(const unsigned char *dgst,
                                         int dgst_len, const ECDSA_SIG *sig,
                                         EC_KEY *eckey));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_init
                      (const EC_KEY_METHOD *meth,
                       int (**pinit)(EC_KEY *key),
                       void (**pfinish)(EC_KEY *key),
                       int (**pcopy)(EC_KEY *dest, const EC_KEY *src),
                       int (**pset_group)(EC_KEY *key, const EC_GROUP *grp),
                       int (**pset_private)(EC_KEY *key, const BIGNUM *priv_key),
                       int (**pset_public)(EC_KEY *key, const EC_POINT *pub_key));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_keygen
                      (const EC_KEY_METHOD *meth, int (**pkeygen)(EC_KEY *key));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_compute_key
                      (const EC_KEY_METHOD *meth,
                       int (**pck)(unsigned char **psec,
                       size_t *pseclen,
                       const EC_POINT *pub_key,
                       const EC_KEY *ecdh));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_sign
                      (const EC_KEY_METHOD *meth,
                       int (**psign)(int type, const unsigned char *dgst,
                                     int dlen, unsigned char *sig,
                                     unsigned int *siglen,
                                     const BIGNUM *kinv, const BIGNUM *r,
                                     EC_KEY *eckey),
                       int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
                                           BIGNUM **kinvp, BIGNUM **rp),
                       ECDSA_SIG *(**psign_sig)(const unsigned char *dgst,
                                                int dgst_len,
                                                const BIGNUM *in_kinv,
                                                const BIGNUM *in_r,
                                                EC_KEY *eckey));

OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_verify
                      (const EC_KEY_METHOD *meth,
                       int (**pverify)(int type, const unsigned
                                       char *dgst, int dgst_len,
                                       const unsigned char *sigbuf,
                                       int sig_len, EC_KEY *eckey),
                       int (**pverify_sig)(const unsigned char *dgst,
                                           int dgst_len,
                                           const ECDSA_SIG *sig,
                                           EC_KEY *eckey));
#  endif /* OPENSSL_NO_DEPRECATED_3_0 */

#  define EVP_EC_gen(curve) \
    EVP_PKEY_Q_keygen(NULL, NULL, "EC", (char *)(strstr(curve, "")))
    /* strstr is used to enable type checking for the variadic string arg */
#  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

# endif
# ifdef  __cplusplus
}
# endif
#endif
Edit Rename Chmod Delete
FILE FOLDER INFO
Name	Size	Permission
archs	---	0755
aes.h	3752 bytes	0644
asn1.h	94 bytes	0644
asn1_asm.h	2468 bytes	0644
asn1_mac.h	398 bytes	0644
asn1_no-asm.h	2756 bytes	0644
asn1err.h	7731 bytes	0644
asn1t.h	96 bytes	0644
asn1t_asm.h	2487 bytes	0644
asn1t_no-asm.h	2777 bytes	0644
async.h	3163 bytes	0644
asyncerr.h	842 bytes	0644
bio.h	92 bytes	0644
bio_asm.h	2449 bytes	0644
bio_no-asm.h	2735 bytes	0644
bioerr.h	3081 bytes	0644
blowfish.h	2693 bytes	0644
bn.h	23689 bytes	0644
bn_conf.h	100 bytes	0644
bn_conf_asm.h	2506 bytes	0644
bn_conf_no-asm.h	2798 bytes	0644
bnerr.h	1949 bytes	0644
buffer.h	1658 bytes	0644
buffererr.h	594 bytes	0644
camellia.h	5069 bytes	0644
cast.h	2066 bytes	0644
cmac.h	1608 bytes	0644
cmp.h	92 bytes	0644
cmp_asm.h	2449 bytes	0644
cmp_no-asm.h	2735 bytes	0644
cmp_util.h	1742 bytes	0644
cmperr.h	6165 bytes	0644
cms.h	92 bytes	0644
cms_asm.h	2449 bytes	0644
cms_no-asm.h	2735 bytes	0644
cmserr.h	6731 bytes	0644
comp.h	1445 bytes	0644
comperr.h	813 bytes	0644
conf.h	94 bytes	0644
conf_api.h	1420 bytes	0644
conf_asm.h	2468 bytes	0644
conf_no-asm.h	2756 bytes	0644
conferr.h	2265 bytes	0644
configuration.h	112 bytes	0644
configuration_asm.h	2639 bytes	0644
configuration_no-asm.h	2945 bytes	0644
conftypes.h	1190 bytes	0644
core.h	8131 bytes	0644
core_dispatch.h	47570 bytes	0644
core_names.h	29014 bytes	0644
core_object.h	1126 bytes	0644
crmf.h	94 bytes	0644
crmf_asm.h	2468 bytes	0644
crmf_no-asm.h	2756 bytes	0644
crmferr.h	2011 bytes	0644
crypto.h	98 bytes	0644
crypto_asm.h	2506 bytes	0644
crypto_no-asm.h	2798 bytes	0644
cryptoerr.h	1899 bytes	0644
cryptoerr_legacy.h	80396 bytes	0644
ct.h	90 bytes	0644
ct_asm.h	2430 bytes	0644
ct_no-asm.h	2714 bytes	0644
cterr.h	1688 bytes	0644
decoder.h	5760 bytes	0644
decodererr.h	791 bytes	0644
des.h	8525 bytes	0644
dh.h	15297 bytes	0644
dherr.h	2507 bytes	0644
dsa.h	12442 bytes	0644
dsaerr.h	1629 bytes	0644
dso_conf.h	102 bytes	0644
dso_conf_asm.h	2525 bytes	0644
dso_conf_no-asm.h	2819 bytes	0644
dtls1.h	1465 bytes	0644
e_os2.h	8718 bytes	0644
ebcdic.h	1042 bytes	0644
ec.h	67683 bytes	0644
ecdh.h	361 bytes	0644
ecdsa.h	361 bytes	0644
ecerr.h	5405 bytes	0644
encoder.h	5450 bytes	0644
encodererr.h	791 bytes	0644
engine.h	38821 bytes	0644
engineerr.h	2838 bytes	0644
err.h	92 bytes	0644
err_asm.h	2449 bytes	0644
err_no-asm.h	2735 bytes	0644
ess.h	92 bytes	0644
ess_asm.h	2449 bytes	0644
ess_no-asm.h	2735 bytes	0644
esserr.h	1144 bytes	0644
evp.h	103745 bytes	0644
evperr.h	7351 bytes	0644
fips_names.h	1679 bytes	0644
fipskey.h	100 bytes	0644
fipskey_asm.h	2525 bytes	0644
fipskey_no-asm.h	2819 bytes	0644
hmac.h	2141 bytes	0644
http.h	5346 bytes	0644
httperr.h	2451 bytes	0644
idea.h	3010 bytes	0644
kdf.h	5619 bytes	0644
kdferr.h	482 bytes	0644
lhash.h	96 bytes	0644
lhash_asm.h	2487 bytes	0644
lhash_no-asm.h	2777 bytes	0644
macros.h	10110 bytes	0644
md2.h	1461 bytes	0644
md4.h	1699 bytes	0644
md5.h	1696 bytes	0644
mdc2.h	1441 bytes	0644
modes.h	10786 bytes	0644
obj_mac.h	228668 bytes	0644
objects.h	6848 bytes	0644
objectserr.h	782 bytes	0644
ocsp.h	94 bytes	0644
ocsp_asm.h	2468 bytes	0644
ocsp_no-asm.h	2756 bytes	0644
ocsperr.h	2200 bytes	0644
opensslconf.h	515 bytes	0644
opensslconf_asm.h	6929 bytes	0644
opensslv.h	102 bytes	0644
opensslv_asm.h	2544 bytes	0644
opensslv_no-asm.h	2840 bytes	0644
ossl_typ.h	562 bytes	0644
param_build.h	2809 bytes	0644
params.h	7328 bytes	0644
pem.h	25764 bytes	0644
pem2.h	531 bytes	0644
pemerr.h	2634 bytes	0644
pkcs12.h	98 bytes	0644
pkcs12_asm.h	2506 bytes	0644
pkcs12_no-asm.h	2798 bytes	0644
pkcs12err.h	1837 bytes	0644
pkcs7.h	96 bytes	0644
pkcs7_asm.h	2487 bytes	0644
pkcs7_no-asm.h	2777 bytes	0644
pkcs7err.h	2952 bytes	0644
prov_ssl.h	981 bytes	0644
proverr.h	8217 bytes	0644
provider.h	2325 bytes	0644
rand.h	3860 bytes	0644
randerr.h	3257 bytes	0644
rc2.h	2382 bytes	0644
rc4.h	1194 bytes	0644
rc5.h	2861 bytes	0644
ripemd.h	1717 bytes	0644
rsa.h	28136 bytes	0644
rsaerr.h	5681 bytes	0644
safestack.h	104 bytes	0644
safestack_asm.h	2563 bytes	0644
safestack_no-asm.h	2861 bytes	0644
seed.h	3964 bytes	0644
self_test.h	4015 bytes	0644
sha.h	4658 bytes	0644
srp.h	92 bytes	0644
srp_asm.h	2449 bytes	0644
srp_no-asm.h	2735 bytes	0644
srtp.h	1429 bytes	0644
ssl.h	92 bytes	0644
ssl2.h	658 bytes	0644
ssl3.h	14773 bytes	0644
ssl_asm.h	2449 bytes	0644
ssl_no-asm.h	2735 bytes	0644
sslerr.h	20527 bytes	0644
sslerr_legacy.h	27005 bytes	0644
stack.h	3284 bytes	0644
store.h	15178 bytes	0644
storeerr.h	2092 bytes	0644
symhacks.h	1290 bytes	0644
tls1.h	71796 bytes	0644
trace.h	10277 bytes	0644
ts.h	19706 bytes	0644
tserr.h	3074 bytes	0644
txt_db.h	1784 bytes	0644
types.h	7206 bytes	0644
ui.h	90 bytes	0644
ui_asm.h	2430 bytes	0644
ui_no-asm.h	2714 bytes	0644
uierr.h	1391 bytes	0644
whrlpool.h	1853 bytes	0644
x509.h	94 bytes	0644
x509_asm.h	2468 bytes	0644
x509_no-asm.h	2756 bytes	0644
x509_vfy.h	102 bytes	0644
x509_vfy_asm.h	2544 bytes	0644
x509_vfy_no-asm.h	2840 bytes	0644
x509err.h	3319 bytes	0644
x509v3.h	98 bytes	0644
x509v3_asm.h	2506 bytes	0644
x509v3_no-asm.h	2798 bytes	0644
x509v3err.h	4819 bytes	0644
File Content: ec.h

File Content: `ec.h`
