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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* lib/krb5/krb/encrypt_tk.c */
/*
* Copyright 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#include "k5-int.h"
/*
Takes unencrypted dec_ticket & dec_tkt_part, encrypts with
dec_ticket->enc_part.etype
using *srv_key, and places result in dec_ticket->enc_part.
The string dec_ticket->enc_part.ciphertext will be allocated before
formatting.
returns errors from encryption routines, system errors
enc_part->ciphertext.data allocated & filled in with encrypted stuff
*/
krb5_error_code
krb5_encrypt_tkt_part(krb5_context context, const krb5_keyblock *srv_key, register krb5_ticket *dec_ticket)
{
krb5_data *scratch;
krb5_error_code retval;
register krb5_enc_tkt_part *dec_tkt_part = dec_ticket->enc_part2;
/* start by encoding the to-be-encrypted part. */
if ((retval = encode_krb5_enc_tkt_part(dec_tkt_part, &scratch))) {
return retval;
}
#define cleanup_scratch() { (void) memset(scratch->data, 0, scratch->length); \
krb5_free_data(context, scratch); }
/* call the encryption routine */
retval = krb5_encrypt_helper(context, srv_key,
KRB5_KEYUSAGE_KDC_REP_TICKET, scratch,
&dec_ticket->enc_part);
cleanup_scratch();
return(retval);
}
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