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Diffstat (limited to 'release/src/router/cyassl/ctaocrypt/include/ctc_ecc.h')
| -rw-r--r-- | release/src/router/cyassl/ctaocrypt/include/ctc_ecc.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/release/src/router/cyassl/ctaocrypt/include/ctc_ecc.h b/release/src/router/cyassl/ctaocrypt/include/ctc_ecc.h new file mode 100644 index 00000000..207a96c4 --- /dev/null +++ b/release/src/router/cyassl/ctaocrypt/include/ctc_ecc.h @@ -0,0 +1,119 @@ +/* ctc_ecc.h + * + * Copyright (C) 2006-2011 Sawtooth Consulting Ltd. + * + * 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 "types.h" +#include "integer.h" +#include "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_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 */ + char* name; /* name of this curve */ + char* prime; /* prime that defines the field the curve is in (hex) */ + char* B; /* fields B param (hex) */ + char* order; /* order of the curve (hex) */ + char* Gx; /* x coordinate of the base point on curve (hex) */ + 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[]; + + +int ecc_make_key(RNG* rng, int keysize, ecc_key* key); +int ecc_shared_secret(ecc_key* private_key, ecc_key* public_key, byte* out, + word32* outlen); + +int ecc_sign_hash(const byte* in, word32 inlen, byte* out, word32 *outlen, + RNG* rng, ecc_key* key); +int ecc_verify_hash(const byte* sig, word32 siglen, byte* hash, word32 hashlen, + int* stat, ecc_key* key); + +void ecc_init(ecc_key* key); +void ecc_free(ecc_key* key); + + +/* ASN key helpers */ +int ecc_export_x963(ecc_key*, byte* out, word32* outLen); +int ecc_import_x963(const byte* in, word32 inLen, ecc_key* key); + +int ecc_import_private_key(const byte* priv, word32 privSz, const byte* pub, + word32 pubSz, ecc_key* key); + +/* size helper */ +int ecc_size(ecc_key* key); +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 */ |