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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.
*/
#ifndef CKSUMTYPES_H
#define CKSUMTYPES_H
#include "k5-int.h"
struct krb5_cksumtypes {
krb5_cksumtype ctype;
unsigned int flags;
char *name;
char *aliases[2];
char *out_string;
/*
* If the hash is keyed, this is the etype it is keyed with.
* Actually, it can be keyed by any etype which has the same
* enc_provider as the specified etype. DERIVE checksums can
* be keyed with any valid etype.
*/
krb5_enctype keyed_etype;
/*
* I can't statically initialize a union, so I'm just going to use
* two pointers here. The keyhash is used if non-NULL. If NULL,
* then HMAC/hash with derived keys is used if the relevant flag
* is set. Otherwise, a non-keyed hash is computed. This is all
* kind of messy, but so is the krb5 api.
*/
const struct krb5_keyhash_provider *keyhash;
const struct krb5_hash_provider *hash;
/*
* This just gets uglier and uglier. In the key derivation case,
* we produce an hmac. To make the hmac code work, we can't hack
* the output size indicated by the hash provider, but we may want
* a truncated hmac. If we want truncation, this is the number of
* bytes we truncate to; it should be 0 otherwise.
*/
unsigned int trunc_size;
};
#define KRB5_CKSUMFLAG_DERIVE 0x0001
#define KRB5_CKSUMFLAG_NOT_COLL_PROOF 0x0002
extern const struct krb5_cksumtypes krb5int_cksumtypes_list[];
extern const unsigned int krb5int_cksumtypes_length;
#endif
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