des_cbc_crypt.h revision 23c57df72989c916b3e98084eb88d48777999691
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _DES_CBC_CRYPT_H
#define _DES_CBC_CRYPT_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include "des_impl.h"
/*
* dc_keysched: Pointer to key schedule.
*
* dc_keysched_len: Length of the key schedule.
*
* dc_remainder: This is for residual data, i.e. data that can't
* be processed because there are too few bytes.
* Must wait until more data arrives.
*
* dc_remainder_len: Number of bytes in dc_remainder.
*
* dc_iv: Scratch buffer that sometimes contains the IV.
*
* dc_lastblock: Scratch buffer.
*
* dc_lastp: Pointer to previous block of ciphertext.
*
* dc_copy_to: Pointer to where encrypted residual data needs
* to be copied.
*
* dc_flags: DES_PROVIDER_OWNS_KEY_SCHEDULE
* When a context is freed, it is necessary
* to know whether the key schedule was allocated
* by the caller, or by des_encrypt_init() or
* des_decrypt_init(). If allocated by the latter,
* then it needs to be freed.
*
* DES_CBC_MODE
* If flag is not set, the mode is DES_ECB_MODE.
*
* DES3_STRENGTH
* If flag is not set, then it's regular DES.
*
*/
typedef struct des_ctx {
void *dc_keysched;
} des_ctx_t;
#define DES_PROVIDER_OWNS_KEY_SCHEDULE 0x00000001
#define DES_CBC_MODE 0x00000002
#define DES3_STRENGTH 0x00000004
crypto_data_t *);
crypto_data_t *);
#ifdef __cplusplus
}
#endif
#endif /* _DES_CBC_CRYPT_H */