ZeroTierOne/node/HMAC.hpp

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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2012-2013 ZeroTier Networks LLC
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef _ZT_HMAC_HPP
#define _ZT_HMAC_HPP
#include <stdint.h>
namespace ZeroTier {
/**
* HMAC authenticator functions
*/
class HMAC
{
public:
/**
* Compute HMAC-SHA256
*
* @param key Key bytes
* @param klen Length of key
* @param len Length of message
* @param mac Buffer to receive 32-byte MAC
*/
static void sha256(const void *key,unsigned int klen,const void *message,unsigned int len,void *mac)
throw();
};
} // namespace ZeroTier
#endif