cryb-to/lib/oath/cryb_oath_key_dummy.c

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2014-07-04 11:18:53 +00:00
/*-
* Copyright (c) 2013 The University of Oslo
2014-07-04 11:18:53 +00:00
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "cryb/impl.h"
#include <inttypes.h>
#include <string.h>
#include <cryb/oath.h>
/*
* OATH
*
* Creates a dummy OATH key structure
*/
struct oath_key *
oath_key_dummy(enum oath_mode mode, enum oath_hash hash, unsigned int digits)
{
struct oath_key *key;
if ((key = oath_key_alloc()) == NULL)
return (NULL);
key->dummy = 1;
key->mode = mode;
key->digits = digits;
key->counter = 0;
key->timestep = 30;
key->hash = hash;
memcpy(key->label, OATH_DUMMY_LABEL, sizeof OATH_DUMMY_LABEL);
key->labellen = sizeof OATH_DUMMY_LABEL - 1;
key->keylen = sizeof key->key;
return (key);
}
/**
* The =oath_key_dummy function allocates and initializes a dummy OATH key
* structure.
* Authentication attempts using a dummy key will always fail.
*
* Keys allocated with =oath_key_dummy must be freed using =oath_key_free.
*
* >oath_key_alloc
* >oath_key_free
*
* AUTHOR UIO
*/