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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* lib/krb5/krb/enc_keyhelper.c */
/*
* 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 "int-proto.h"
krb5_error_code
k5_encrypt_keyhelper(krb5_context context, krb5_key key, krb5_keyusage usage,
const krb5_data *plain, krb5_enc_data *cipher)
{
krb5_enctype enctype;
krb5_error_code ret;
size_t enclen;
enctype = krb5_k_key_enctype(context, key);
ret = krb5_c_encrypt_length(context, enctype, plain->length, &enclen);
if (ret != 0)
return ret;
cipher->ciphertext.length = enclen;
cipher->ciphertext.data = malloc(enclen);
if (cipher->ciphertext.data == NULL)
return ENOMEM;
ret = krb5_k_encrypt(context, key, usage, 0, plain, cipher);
if (ret) {
free(cipher->ciphertext.data);
cipher->ciphertext.data = NULL;
}
return ret;
}
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