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/* ec.h
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
/* ec.h for openssl */
#ifndef WOLFSSL_EC_H_
#define WOLFSSL_EC_H_
#include <wolfssl/openssl/bn.h>
#include <wolfssl/wolfcrypt/ecc.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Map OpenSSL NID value */
enum {
POINT_CONVERSION_COMPRESSED = 2,
POINT_CONVERSION_UNCOMPRESSED = 4,
#ifdef HAVE_ECC
/* Use OpenSSL NIDs. NIDs can be mapped to ecc_curve_id enum values by
calling NIDToEccEnum() in ssl.c */
NID_X9_62_prime192v1 = 409,
NID_X9_62_prime192v2 = 410,
NID_X9_62_prime192v3 = 411,
NID_X9_62_prime239v1 = 412,
NID_X9_62_prime239v2 = 413,
NID_X9_62_prime239v3 = 414,
NID_X9_62_prime256v1 = 415,
NID_secp112r1 = 704,
NID_secp112r2 = 705,
NID_secp128r1 = 706,
NID_secp128r2 = 707,
NID_secp160r1 = 709,
NID_secp160r2 = 710,
NID_secp224r1 = 713,
NID_secp384r1 = 715,
NID_secp521r1 = 716,
NID_secp160k1 = 708,
NID_secp192k1 = 711,
NID_secp224k1 = 712,
NID_secp256k1 = 714,
NID_brainpoolP160r1 = 921,
NID_brainpoolP192r1 = 923,
NID_brainpoolP224r1 = 925,
NID_brainpoolP256r1 = 927,
NID_brainpoolP320r1 = 929,
NID_brainpoolP384r1 = 931,
NID_brainpoolP512r1 = 933,
#endif
OPENSSL_EC_NAMED_CURVE = 0x001
};
#ifndef WOLFSSL_EC_TYPE_DEFINED /* guard on redeclaration */
typedef struct WOLFSSL_EC_KEY WOLFSSL_EC_KEY;
typedef struct WOLFSSL_EC_POINT WOLFSSL_EC_POINT;
typedef struct WOLFSSL_EC_GROUP WOLFSSL_EC_GROUP;
typedef struct WOLFSSL_EC_BUILTIN_CURVE WOLFSSL_EC_BUILTIN_CURVE;
/* WOLFSSL_EC_METHOD is just an alias of WOLFSSL_EC_GROUP for now */
typedef struct WOLFSSL_EC_GROUP WOLFSSL_EC_METHOD;
#define WOLFSSL_EC_TYPE_DEFINED
#endif
typedef WOLFSSL_EC_KEY EC_KEY;
typedef WOLFSSL_EC_GROUP EC_GROUP;
typedef WOLFSSL_EC_GROUP EC_METHOD;
typedef WOLFSSL_EC_POINT EC_POINT;
typedef WOLFSSL_EC_BUILTIN_CURVE EC_builtin_curve;
struct WOLFSSL_EC_POINT {
WOLFSSL_BIGNUM *X;
WOLFSSL_BIGNUM *Y;
WOLFSSL_BIGNUM *Z;
void* internal; /* our ECC point */
char inSet; /* internal set from external ? */
char exSet; /* external set from internal ? */
};
struct WOLFSSL_EC_GROUP {
int curve_idx; /* index of curve, used by WolfSSL as reference */
int curve_nid; /* NID of curve, used by OpenSSL/OpenSSH as reference */
int curve_oid; /* OID of curve, used by OpenSSL/OpenSSH as reference */
};
struct WOLFSSL_EC_KEY {
WOLFSSL_EC_GROUP *group;
WOLFSSL_EC_POINT *pub_key;
WOLFSSL_BIGNUM *priv_key;
void* internal; /* our ECC Key */
char inSet; /* internal set from external ? */
char exSet; /* external set from internal ? */
char form; /* Either POINT_CONVERSION_UNCOMPRESSED or
* POINT_CONVERSION_COMPRESSED */
};
struct WOLFSSL_EC_BUILTIN_CURVE {
int nid;
const char *comment;
};
#define WOLFSSL_EC_KEY_LOAD_PRIVATE 1
#define WOLFSSL_EC_KEY_LOAD_PUBLIC 2
WOLFSSL_API
size_t wolfSSL_EC_get_builtin_curves(WOLFSSL_EC_BUILTIN_CURVE *r,size_t nitems);
WOLFSSL_API
WOLFSSL_EC_KEY *wolfSSL_EC_KEY_dup(const WOLFSSL_EC_KEY *src);
WOLFSSL_API
int wolfSSL_ECPoint_i2d(const WOLFSSL_EC_GROUP *curve,
const WOLFSSL_EC_POINT *p,
unsigned char *out, unsigned int *len);
WOLFSSL_API
int wolfSSL_ECPoint_d2i(unsigned char *in, unsigned int len,
const WOLFSSL_EC_GROUP *curve, WOLFSSL_EC_POINT *p);
WOLFSSL_API
size_t wolfSSL_EC_POINT_point2oct(const WOLFSSL_EC_GROUP *group,
const WOLFSSL_EC_POINT *p,
char form,
byte *buf, size_t len, WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
int wolfSSL_EC_POINT_oct2point(const WOLFSSL_EC_GROUP *group,
WOLFSSL_EC_POINT *p, const unsigned char *buf,
size_t len, WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
int wolfSSL_i2o_ECPublicKey(const WOLFSSL_EC_KEY *in, unsigned char **out);
WOLFSSL_API
void wolfSSL_EC_KEY_set_conv_form(WOLFSSL_EC_KEY *eckey, char form);
WOLFSSL_API
WOLFSSL_BIGNUM *wolfSSL_EC_POINT_point2bn(const WOLFSSL_EC_GROUP *group,
const WOLFSSL_EC_POINT *p,
char form,
WOLFSSL_BIGNUM *in, WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
int wolfSSL_EC_KEY_LoadDer(WOLFSSL_EC_KEY* key,
const unsigned char* der, int derSz);
WOLFSSL_API
int wolfSSL_EC_KEY_LoadDer_ex(WOLFSSL_EC_KEY* key,
const unsigned char* der, int derSz, int opt);
WOLFSSL_API
void wolfSSL_EC_KEY_free(WOLFSSL_EC_KEY *key);
WOLFSSL_API
WOLFSSL_EC_POINT *wolfSSL_EC_KEY_get0_public_key(const WOLFSSL_EC_KEY *key);
WOLFSSL_API
const WOLFSSL_EC_GROUP *wolfSSL_EC_KEY_get0_group(const WOLFSSL_EC_KEY *key);
WOLFSSL_API
int wolfSSL_EC_KEY_set_private_key(WOLFSSL_EC_KEY *key,
const WOLFSSL_BIGNUM *priv_key);
WOLFSSL_API
WOLFSSL_BIGNUM *wolfSSL_EC_KEY_get0_private_key(const WOLFSSL_EC_KEY *key);
WOLFSSL_API
WOLFSSL_EC_KEY *wolfSSL_EC_KEY_new_by_curve_name(int nid);
WOLFSSL_API const char* wolfSSL_EC_curve_nid2nist(int nid);
WOLFSSL_API
WOLFSSL_EC_KEY *wolfSSL_EC_KEY_new(void);
WOLFSSL_API
int wolfSSL_EC_KEY_set_group(WOLFSSL_EC_KEY *key, WOLFSSL_EC_GROUP *group);
WOLFSSL_API
int wolfSSL_EC_KEY_generate_key(WOLFSSL_EC_KEY *key);
WOLFSSL_API
void wolfSSL_EC_KEY_set_asn1_flag(WOLFSSL_EC_KEY *key, int asn1_flag);
WOLFSSL_API
int wolfSSL_EC_KEY_set_public_key(WOLFSSL_EC_KEY *key,
const WOLFSSL_EC_POINT *pub);
WOLFSSL_API int wolfSSL_ECDSA_size(const WOLFSSL_EC_KEY *key);
WOLFSSL_API int wolfSSL_ECDSA_sign(int type, const unsigned char *digest,
int digestSz, unsigned char *sig,
unsigned int *sigSz, WOLFSSL_EC_KEY *key);
WOLFSSL_API
void wolfSSL_EC_GROUP_set_asn1_flag(WOLFSSL_EC_GROUP *group, int flag);
WOLFSSL_API
WOLFSSL_EC_GROUP *wolfSSL_EC_GROUP_new_by_curve_name(int nid);
WOLFSSL_API
int wolfSSL_EC_GROUP_cmp(const WOLFSSL_EC_GROUP *a, const WOLFSSL_EC_GROUP *b,
WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
int wolfSSL_EC_GROUP_get_curve_name(const WOLFSSL_EC_GROUP *group);
WOLFSSL_API
int wolfSSL_EC_GROUP_get_degree(const WOLFSSL_EC_GROUP *group);
WOLFSSL_API
int wolfSSL_EC_GROUP_get_order(const WOLFSSL_EC_GROUP *group,
WOLFSSL_BIGNUM *order, WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
int wolfSSL_EC_GROUP_order_bits(const WOLFSSL_EC_GROUP *group);
WOLFSSL_API
void wolfSSL_EC_GROUP_free(WOLFSSL_EC_GROUP *group);
WOLFSSL_API
const WOLFSSL_EC_METHOD* wolfSSL_EC_GROUP_method_of(
const WOLFSSL_EC_GROUP *group);
WOLFSSL_API
int wolfSSL_EC_METHOD_get_field_type(const WOLFSSL_EC_METHOD *meth);
WOLFSSL_API
WOLFSSL_EC_POINT *wolfSSL_EC_POINT_new(const WOLFSSL_EC_GROUP *group);
WOLFSSL_API
int wolfSSL_EC_POINT_get_affine_coordinates_GFp(const WOLFSSL_EC_GROUP *group,
const WOLFSSL_EC_POINT *p,
WOLFSSL_BIGNUM *x,
WOLFSSL_BIGNUM *y,
WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
int wolfSSL_EC_POINT_set_affine_coordinates_GFp(const WOLFSSL_EC_GROUP *group,
WOLFSSL_EC_POINT *point,
const WOLFSSL_BIGNUM *x,
const WOLFSSL_BIGNUM *y,
WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
int wolfSSL_EC_POINT_mul(const WOLFSSL_EC_GROUP *group, WOLFSSL_EC_POINT *r,
const WOLFSSL_BIGNUM *n,
const WOLFSSL_EC_POINT *q, const WOLFSSL_BIGNUM *m,
WOLFSSL_BN_CTX *ctx);
WOLFSSL_API
void wolfSSL_EC_POINT_clear_free(WOLFSSL_EC_POINT *point);
WOLFSSL_API
int wolfSSL_EC_POINT_cmp(const WOLFSSL_EC_GROUP *group,
const WOLFSSL_EC_POINT *a, const WOLFSSL_EC_POINT *b,
WOLFSSL_BN_CTX *ctx);
WOLFSSL_API int wolfSSL_EC_POINT_copy(WOLFSSL_EC_POINT *dest,
const WOLFSSL_EC_POINT *src);
WOLFSSL_API
void wolfSSL_EC_POINT_free(WOLFSSL_EC_POINT *point);
WOLFSSL_API
int wolfSSL_EC_POINT_is_at_infinity(const WOLFSSL_EC_GROUP *group,
const WOLFSSL_EC_POINT *a);
#ifndef HAVE_SELFTEST
WOLFSSL_API
char* wolfSSL_EC_POINT_point2hex(const WOLFSSL_EC_GROUP* group,
const WOLFSSL_EC_POINT* point, int form,
WOLFSSL_BN_CTX* ctx);
#endif
#ifndef HAVE_ECC
#define OPENSSL_NO_EC
#endif
#define EC_KEY_new wolfSSL_EC_KEY_new
#define EC_KEY_free wolfSSL_EC_KEY_free
#define EC_KEY_dup wolfSSL_EC_KEY_dup
#define EC_KEY_get0_public_key wolfSSL_EC_KEY_get0_public_key
#define EC_KEY_get0_group wolfSSL_EC_KEY_get0_group
#define EC_KEY_set_private_key wolfSSL_EC_KEY_set_private_key
#define EC_KEY_get0_private_key wolfSSL_EC_KEY_get0_private_key
#define EC_KEY_new_by_curve_name wolfSSL_EC_KEY_new_by_curve_name
#define EC_KEY_set_group wolfSSL_EC_KEY_set_group
#define EC_KEY_generate_key wolfSSL_EC_KEY_generate_key
#define EC_KEY_set_asn1_flag wolfSSL_EC_KEY_set_asn1_flag
#define EC_KEY_set_public_key wolfSSL_EC_KEY_set_public_key
#define ECDSA_size wolfSSL_ECDSA_size
#define ECDSA_sign wolfSSL_ECDSA_sign
#define EC_GROUP_free wolfSSL_EC_GROUP_free
#define EC_GROUP_set_asn1_flag wolfSSL_EC_GROUP_set_asn1_flag
#define EC_GROUP_new_by_curve_name wolfSSL_EC_GROUP_new_by_curve_name
#define EC_GROUP_cmp wolfSSL_EC_GROUP_cmp
#define EC_GROUP_get_curve_name wolfSSL_EC_GROUP_get_curve_name
#define EC_GROUP_get_degree wolfSSL_EC_GROUP_get_degree
#define EC_GROUP_get_order wolfSSL_EC_GROUP_get_order
#define EC_GROUP_order_bits wolfSSL_EC_GROUP_order_bits
#define EC_GROUP_method_of wolfSSL_EC_GROUP_method_of
#define EC_METHOD_get_field_type wolfSSL_EC_METHOD_get_field_type
#define EC_POINT_new wolfSSL_EC_POINT_new
#define EC_POINT_free wolfSSL_EC_POINT_free
#define EC_POINT_get_affine_coordinates_GFp \
wolfSSL_EC_POINT_get_affine_coordinates_GFp
#define EC_POINT_set_affine_coordinates_GFp \
wolfSSL_EC_POINT_set_affine_coordinates_GFp
#define EC_POINT_mul wolfSSL_EC_POINT_mul
#define EC_POINT_clear_free wolfSSL_EC_POINT_clear_free
#define EC_POINT_cmp wolfSSL_EC_POINT_cmp
#define EC_POINT_copy wolfSSL_EC_POINT_copy
#define EC_POINT_is_at_infinity wolfSSL_EC_POINT_is_at_infinity
#define EC_get_builtin_curves wolfSSL_EC_get_builtin_curves
#define ECPoint_i2d wolfSSL_ECPoint_i2d
#define ECPoint_d2i wolfSSL_ECPoint_d2i
#define EC_POINT_point2oct wolfSSL_EC_POINT_point2oct
#define EC_POINT_oct2point wolfSSL_EC_POINT_oct2point
#define EC_POINT_point2bn wolfSSL_EC_POINT_point2bn
#define i2o_ECPublicKey wolfSSL_i2o_ECPublicKey
#define EC_KEY_set_conv_form wolfSSL_EC_KEY_set_conv_form
#ifndef HAVE_SELFTEST
#define EC_POINT_point2hex wolfSSL_EC_POINT_point2hex
#endif
#define EC_POINT_dump wolfSSL_EC_POINT_dump
#define EC_get_builtin_curves wolfSSL_EC_get_builtin_curves
#define EC_curve_nid2nist wolfSSL_EC_curve_nid2nist
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* header */
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