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/*
* Copyright (c) 2011 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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 "krb5_locl.h"
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
_krb5_fast_cf2(krb5_context context,
krb5_keyblock *key1,
const char *pepper1,
krb5_keyblock *key2,
const char *pepper2,
krb5_keyblock *armorkey,
krb5_crypto *armor_crypto)
{
krb5_crypto crypto1, crypto2;
krb5_data pa1, pa2;
krb5_error_code ret;
ret = krb5_crypto_init(context, key1, 0, &crypto1);
if (ret)
return ret;
ret = krb5_crypto_init(context, key2, 0, &crypto2);
if (ret) {
krb5_crypto_destroy(context, crypto1);
return ret;
}
pa1.data = rk_UNCONST(pepper1);
pa1.length = strlen(pepper1);
pa2.data = rk_UNCONST(pepper2);
pa2.length = strlen(pepper2);
ret = krb5_crypto_fx_cf2(context, crypto1, crypto2, &pa1, &pa2,
key1->keytype, armorkey);
krb5_crypto_destroy(context, crypto1);
krb5_crypto_destroy(context, crypto2);
if (ret)
return ret;
if (armor_crypto) {
ret = krb5_crypto_init(context, armorkey, 0, armor_crypto);
if (ret)
krb5_free_keyblock_contents(context, armorkey);
}
return ret;
}
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
_krb5_fast_armor_key(krb5_context context,
krb5_keyblock *subkey,
krb5_keyblock *sessionkey,
krb5_keyblock *armorkey,
krb5_crypto *armor_crypto)
{
return _krb5_fast_cf2(context,
subkey,
"subkeyarmor",
sessionkey,
"ticketarmor",
armorkey,
armor_crypto);
}
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