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/*
* Off-the-Record Messaging Toolkit
* Copyright (C) 2004-2008 Ian Goldberg, Chris Alexander, Nikita Borisov
* <otr@cypherpunks.ca>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __CTRMODE_H__
#define __CTRMODE_H__
/* Encrypt or decrypt data in AES-CTR mode. (The operations are the
* same.) We roll our own here just to double-check that the calls
* libotr makes to libgcrypt are doing the right thing. */
void aes_ctr_crypt(unsigned char *out, const unsigned char *in, size_t len,
unsigned char key[16], unsigned char ctrtop[8]);
#endif
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