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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright (C) 1998 by the FundsXpress, INC.
*
* 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 FundsXpress. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. FundsXpress makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "k5-int.h"
#include "etypes.h"
#include "aead.h"
krb5_error_code KRB5_CALLCONV
krb5_c_encrypt_length(krb5_context context, krb5_enctype enctype,
size_t inputlen, size_t *length)
{
const struct krb5_keytypes *ktp;
unsigned int header_len = 0, padding_len = 0, trailer_len = 0;
ktp = find_enctype(enctype);
if (ktp == NULL)
return KRB5_BAD_ENCTYPE;
header_len = ktp->crypto_length(ktp, KRB5_CRYPTO_TYPE_HEADER);
padding_len = krb5int_c_padding_length(ktp, inputlen);
trailer_len = ktp->crypto_length(ktp, KRB5_CRYPTO_TYPE_TRAILER);
*length = header_len + inputlen + padding_len + trailer_len;
return 0;
}
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