[u/mdw/catacomb] / rc5.h

/* -*-c-*-
 *
 * $Id: rc5.h,v 1.1 1999/09/03 08:41:12 mdw Exp $
 *
 * The RC5-32/12 block cipher
 *
 * (c) 1999 Straylight/Edgeware
 */

/*----- Licensing notice --------------------------------------------------* 
 *
 * This file is part of Catacomb.
 *
 * Catacomb is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Library General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 * 
 * Catacomb is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with Catacomb; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 */

/*----- Revision history --------------------------------------------------* 
 *
 * $Log: rc5.h,v $
 * Revision 1.1  1999/09/03 08:41:12  mdw
 * Initial import.
 *
 */

#ifndef RC5_H
#define RC5_H

#ifdef __cplusplus
  extern "C" {
#endif

/*----- Header files ------------------------------------------------------*/

#include <mLib/bits.h>

/*----- Magic numbers -----------------------------------------------------*/

#define RC5_ROUNDS 12
#define RC5_KEYSZ 0
#define RC5_BLKSZ 8
#define RC5_CLASS (N, L, 64)

/*----- Data structures ---------------------------------------------------*/

typedef struct rc5_ctx {
  uint32 s[2 * (RC5_ROUNDS + 1)];
} rc5_ctx;

/*----- Functions provided ------------------------------------------------*/

/* --- @rc5_init@ --- *
 *
 * Arguments:	@rc5_ctx *k@ = pointer to a key block
 *		@const void *sbuf@ = pointer to key material
 *		@size_t sz@ = size of the key material
 *
 * Returns:	---
 *
 * Use:		Initializes an RC5 key block.
 */

extern void rc5_init(rc5_ctx */*k*/, const void */*sbuf*/, size_t /*sz*/);

/* --- @rc5_eblk@, @rc5_dblk@ --- *
 *
 * Arguments:	@const rc5_ctx *k@ = pointer to RC5 context block
 *		@const uint32 s[2]@ = pointer to source block
 *		@uint32 *d[2]@ = pointer to destination block
 *
 * Returns:	---
 *
 * Use:		Low level block encryption and decryption.
 */

extern void rc5_eblk(const rc5_ctx */*k*/,
		     const uint32 */*s*/, uint32 */*d*/);
extern void rc5_dblk(const rc5_ctx */*k*/,
		     const uint32 */*s*/, uint32 */*d*/);

/*----- That's all, folks -------------------------------------------------*/

#ifdef __cplusplus
  }
#endif

#endif
Commit	Line	Data
d03ab969	1	/* --c--
	2	*
	3	* $Id: rc5.h,v 1.1 1999/09/03 08:41:12 mdw Exp $
	4	*
	5	* The RC5-32/12 block cipher
	6	*
	7	* (c) 1999 Straylight/Edgeware
	8	*/
	9
	10	/----- Licensing notice --------------------------------------------------
	11	*
	12	* This file is part of Catacomb.
	13	*
	14	* Catacomb is free software; you can redistribute it and/or modify
	15	* it under the terms of the GNU Library General Public License as
	16	* published by the Free Software Foundation; either version 2 of the
	17	* License, or (at your option) any later version.
	18	*
	19	* Catacomb is distributed in the hope that it will be useful,
	20	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	21	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	22	* GNU Library General Public License for more details.
	23	*
	24	* You should have received a copy of the GNU Library General Public
	25	* License along with Catacomb; if not, write to the Free
	26	* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
	27	* MA 02111-1307, USA.
	28	*/
	29
	30	/----- Revision history --------------------------------------------------
	31	*
	32	* $Log: rc5.h,v $
	33	* Revision 1.1 1999/09/03 08:41:12 mdw
	34	* Initial import.
	35	*
	36	*/
	37
	38	#ifndef RC5_H
	39	#define RC5_H
	40
	41	#ifdef __cplusplus
	42	extern "C" {
	43	#endif
	44
	45	/----- Header files ------------------------------------------------------/
	46
	47	#include <mLib/bits.h>
	48
	49	/----- Magic numbers -----------------------------------------------------/
	50
	51	#define RC5_ROUNDS 12
	52	#define RC5_KEYSZ 0
	53	#define RC5_BLKSZ 8
	54	#define RC5_CLASS (N, L, 64)
	55
	56	/----- Data structures ---------------------------------------------------/
	57
	58	typedef struct rc5_ctx {
	59	uint32 s[2 * (RC5_ROUNDS + 1)];
	60	} rc5_ctx;
	61
	62	/----- Functions provided ------------------------------------------------/
	63
	64	/* --- @rc5_init@ --- *
65	*
66	* Arguments: @rc5_ctx *k@ = pointer to a key block
67	* @const void *sbuf@ = pointer to key material
68	* @size_t sz@ = size of the key material
69	*
70	* Returns: ---
71	*
72	* Use: Initializes an RC5 key block.
73	*/
74
75	extern void rc5_init(rc5_ctx /k/, const void /sbuf/, size_t /sz/);
76
77	/* --- @rc5_eblk@, @rc5_dblk@ --- *
78	*
79	* Arguments: @const rc5_ctx *k@ = pointer to RC5 context block
80	* @const uint32 s[2]@ = pointer to source block
81	* @uint32 *d[2]@ = pointer to destination block
82	*
83	* Returns: ---
84	*
85	* Use: Low level block encryption and decryption.
86	*/
87
88	extern void rc5_eblk(const rc5_ctx /k*/,
89	const uint32 /s/, uint32 /d/);
90	extern void rc5_dblk(const rc5_ctx /k*/,
91	const uint32 /s/, uint32 /d/);
92
93	/----- That's all, folks -------------------------------------------------/
94
95	#ifdef __cplusplus
96	}
97	#endif
98
99	#endif