mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-19 13:07:55 +00:00
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/*
|
|
* 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_POLY1305_HPP
|
|
#define _ZT_POLY1305_HPP
|
|
|
|
namespace ZeroTier {
|
|
|
|
#define ZT_POLY1305_KEY_LEN 32
|
|
#define ZT_POLY1305_MAC_LEN 16
|
|
|
|
/**
|
|
* Poly1305 one-time authentication code
|
|
*
|
|
* This takes a one-time-use 32-byte key and generates a 16-byte message
|
|
* authentication code. The key must never be re-used for a different
|
|
* message. Normally this is done by taking a base key and mangling it
|
|
* using a nonce and possibly other data, as in Packet.
|
|
*/
|
|
class Poly1305
|
|
{
|
|
public:
|
|
/**
|
|
* Compute a one-time authentication code
|
|
*
|
|
* @param auth Buffer to receive code -- MUST be 16 bytes in length
|
|
* @param data Data to authenticate
|
|
* @param len Length of data to authenticate in bytes
|
|
* @param key 32-byte one-time use key to authenticate data (must not be reused)
|
|
*/
|
|
static void compute(void *auth,const void *data,unsigned int len,const void *key)
|
|
throw();
|
|
};
|
|
|
|
} // namespace ZeroTier
|
|
|
|
#endif |