3 * Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
5 * This file is part of CyaSSL.
7 * CyaSSL is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * CyaSSL is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
25 #ifndef CTAO_CRYPT_DH_H
26 #define CTAO_CRYPT_DH_H
28 #include <cyassl/ctaocrypt/types.h>
29 #include <cyassl/ctaocrypt/integer.h>
30 #include <cyassl/ctaocrypt/random.h>
37 /* Diffie-Hellman Key */
38 typedef struct DhKey {
39 mp_int p, g; /* group parameters */
43 CYASSL_API void InitDhKey(DhKey* key);
44 CYASSL_API void FreeDhKey(DhKey* key);
46 CYASSL_API int DhGenerateKeyPair(DhKey* key, RNG* rng, byte* priv,
47 word32* privSz, byte* pub, word32* pubSz);
48 CYASSL_API int DhAgree(DhKey* key, byte* agree, word32* agreeSz,
49 const byte* priv, word32 privSz, const byte* otherPub,
52 CYASSL_API int DhKeyDecode(const byte* input, word32* inOutIdx, DhKey* key,
54 CYASSL_API int DhSetKey(DhKey* key, const byte* p, word32 pSz, const byte* g,
56 CYASSL_API int DhParamsLoad(const byte* input, word32 inSz, byte* p,
57 word32* pInOutSz, byte* g, word32* gInOutSz);
64 #endif /* CTAO_CRYPT_DH_H */