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69 lines
2.0 KiB
69 lines
2.0 KiB
/* |
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* ZeroTier One - Global Peer to Peer Ethernet |
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* Copyright (C) 2012-2013 ZeroTier Networks LLC |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* -- |
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* |
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* ZeroTier may be used and distributed under the terms of the GPLv3, which |
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html |
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* |
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* If you would like to embed ZeroTier into a commercial application or |
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* redistribute it in a modified binary form, please contact ZeroTier Networks |
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* LLC. Start here: http://www.zerotier.com/ |
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*/ |
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#ifndef _ZT_C25519_HPP |
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#define _ZT_C25519_HPP |
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#include "Array.hpp" |
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namespace ZeroTier { |
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/** |
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* C25519 elliptic curve key agreement and signing |
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*/ |
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class C25519 |
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{ |
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public: |
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typedef Array<unsigned char,64> Public; // crypto key, signing key |
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typedef Array<unsigned char,96> Private; // crypto key, signing key (64 bytes) |
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typedef struct { |
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Public pub; |
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Private priv; |
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} Pair; |
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/** |
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* Generate a C25519 elliptic curve key pair |
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*/ |
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static Pair generate(); |
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/** |
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* Perform C25519 ECC key agreement |
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* |
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* Actual key bytes are generated from one or more SHA-512 digests of |
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* the raw result of key agreement. |
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* |
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* @param mine My key pair including secret |
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* @param their Their public key |
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* @param keybuf Buffer to fill |
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* @param keylen Number of key bytes to generate |
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*/ |
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static void agree(const Pair &mine,const Public &their,void *keybuf,unsigned int keylen); |
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}; |
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} // namespace ZeroTier |
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#endif
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