fork of cyassl-lib
Dependents: TLS_cyassl TLS_cyassl
cyassl/ctaocrypt/ecc.h
- Committer:
- ashleymills
- Date:
- 2013-09-05
- Revision:
- 0:714293de3836
File content as of revision 0:714293de3836:
/* ecc.h * * Copyright (C) 2006-2013 wolfSSL Inc. * * This file is part of CyaSSL. * * CyaSSL 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. * * CyaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ #ifdef HAVE_ECC #ifndef CTAO_CRYPT_ECC_H #define CTAO_CRYPT_ECC_H #include <cyassl/ctaocrypt/types.h> #include <cyassl/ctaocrypt/integer.h> #include <cyassl/ctaocrypt/random.h> #ifdef __cplusplus extern "C" { #endif enum { ECC_PUBLICKEY = 1, ECC_PRIVATEKEY = 2, ECC_MAXNAME = 16, /* MAX CURVE NAME LENGTH */ SIG_HEADER_SZ = 6, /* ECC signature header size */ ECC_BUFSIZE = 256, /* for exported keys temp buffer */ ECC_MINSIZE = 20, /* MIN Private Key size */ ECC_MAXSIZE = 66 /* MAX Private Key size */ }; /* ECC set type defined a NIST GF(p) curve */ typedef struct { int size; /* The size of the curve in octets */ const char* name; /* name of this curve */ const char* prime; /* prime that defines the field, curve is in (hex) */ const char* B; /* fields B param (hex) */ const char* order; /* order of the curve (hex) */ const char* Gx; /* x coordinate of the base point on curve (hex) */ const char* Gy; /* y coordinate of the base point on curve (hex) */ } ecc_set_type; /* A point on an ECC curve, stored in Jacbobian format such that (x,y,z) => (x/z^2, y/z^3, 1) when interpreted as affine */ typedef struct { mp_int x; /* The x coordinate */ mp_int y; /* The y coordinate */ mp_int z; /* The z coordinate */ } ecc_point; /* An ECC Key */ typedef struct { int type; /* Public or Private */ int idx; /* Index into the ecc_sets[] for the parameters of this curve if -1, this key is using user supplied curve in dp */ const ecc_set_type* dp; /* domain parameters, either points to NIST curves (idx >= 0) or user supplied */ ecc_point pubkey; /* public key */ mp_int k; /* private key */ } ecc_key; /* ECC predefined curve sets */ extern const ecc_set_type ecc_sets[]; CYASSL_API int ecc_make_key(RNG* rng, int keysize, ecc_key* key); CYASSL_API int ecc_shared_secret(ecc_key* private_key, ecc_key* public_key, byte* out, word32* outlen); CYASSL_API int ecc_sign_hash(const byte* in, word32 inlen, byte* out, word32 *outlen, RNG* rng, ecc_key* key); CYASSL_API int ecc_verify_hash(const byte* sig, word32 siglen, byte* hash, word32 hashlen, int* stat, ecc_key* key); CYASSL_API void ecc_init(ecc_key* key); CYASSL_API void ecc_free(ecc_key* key); /* ASN key helpers */ CYASSL_API int ecc_export_x963(ecc_key*, byte* out, word32* outLen); CYASSL_API int ecc_import_x963(const byte* in, word32 inLen, ecc_key* key); CYASSL_API int ecc_import_private_key(const byte* priv, word32 privSz, const byte* pub, word32 pubSz, ecc_key* key); /* size helper */ CYASSL_API int ecc_size(ecc_key* key); CYASSL_API int ecc_sig_size(ecc_key* key); /* TODO: fix mutex types */ #define MUTEX_GLOBAL(x) int (x); #define MUTEX_LOCK(x) #define MUTEX_UNLOCK(x) #ifdef __cplusplus } /* extern "C" */ #endif #endif /* CTAO_CRYPT_ECC_H */ #endif /* HAVE_ECC */