/*
 * 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"

void krb5_dk_encrypt_length
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc,
		krb5_const struct krb5_hash_provider *hash,
		size_t input, size_t *length));

krb5_error_code krb5_dk_encrypt
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc,
		krb5_const struct krb5_hash_provider *hash,
		krb5_const krb5_keyblock *key, krb5_keyusage usage,
		krb5_const krb5_data *ivec,
		krb5_const krb5_data *input, krb5_data *output));

krb5_error_code krb5_dk_decrypt
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc,
		krb5_const struct krb5_hash_provider *hash,
		krb5_const krb5_keyblock *key, krb5_keyusage usage,
		krb5_const krb5_data *ivec, krb5_const krb5_data *input,
		krb5_data *arg_output));

krb5_error_code krb5_dk_string_to_key
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc, 
		krb5_const krb5_data *string, krb5_const krb5_data *salt,
		krb5_keyblock *key));

krb5_error_code krb5_derive_key
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc,
		krb5_const krb5_keyblock *inkey,
		krb5_keyblock *outkey, krb5_const krb5_data *in_constant));

krb5_error_code krb5_dk_make_checksum
KRB5_PROTOTYPE((krb5_const struct krb5_hash_provider *hash,
		krb5_const krb5_keyblock *key, krb5_keyusage usage,
		krb5_const krb5_data *input, krb5_data *output));

#ifdef ATHENA_DES3_KLUDGE
void krb5_marc_dk_encrypt_length
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc,
		krb5_const struct krb5_hash_provider *hash,
		size_t input, size_t *length));

krb5_error_code krb5_marc_dk_encrypt
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc,
		krb5_const struct krb5_hash_provider *hash,
		krb5_const krb5_keyblock *key, krb5_keyusage usage,
		krb5_const krb5_data *ivec,
		krb5_const krb5_data *input, krb5_data *output));

krb5_error_code krb5_marc_dk_decrypt
KRB5_PROTOTYPE((krb5_const struct krb5_enc_provider *enc,
		krb5_const struct krb5_hash_provider *hash,
		krb5_const krb5_keyblock *key, krb5_keyusage usage,
		krb5_const krb5_data *ivec, krb5_const krb5_data *input,
		krb5_data *arg_output));

krb5_error_code krb5_marc_dk_make_checksum
KRB5_PROTOTYPE((krb5_const struct krb5_hash_provider *hash,
		krb5_const krb5_keyblock *key, krb5_keyusage usage,
		krb5_const krb5_data *input, krb5_data *output));
#endif /* ATHENA_DES3_KLUDGE */
