libmissive/crypt.c

/*    This file is part of libmissive.
 *
 *    libmissive is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU Lesser General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    libmissive 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 Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public License
 *    along with libmissive.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <string.h>

#include "crypt.h"

int
nonce_update(Nonce current, const Nonce newer)
{
	switch (sodium_compare(current, newer, sizeof(Nonce))) {
	case 1:
		memcpy(current, newer, sizeof(Nonce));
		/* fallthru */
	case 0:
		sodium_increment(current, sizeof(Nonce));
	        return 0;
	case -1:
		break;
	}

	return -1;
}

void
box_keys(Box_skey skey, Box_pkey pkey)
{
	crypto_box_keypair(pkey, skey);
}

void
sign_keys(Sign_skey skey, Sign_pkey pkey)
{
	crypto_sign_keypair(pkey, skey);
}