freebsd-skq/sys/opencrypto/xform_enc.h
allanjude 2502999acd Break up opencrypto/xform.c so it can be reused piecemeal
Keep xform.c as a meta-file including the broken out bits
existing code that includes xform.c continues to work as normal

Individual algorithms can now be reused elsewhere, including outside
of the kernel

Reviewed by:	bapt (previous version), gnn, delphij
Approved by:	secteam
MFC after:	1 week
Sponsored by:	ScaleEngine Inc.
Differential Revision:	https://reviews.freebsd.org/D4674
2015-12-30 22:43:07 +00:00

93 lines
2.8 KiB
C

/* $FreeBSD$ */
/* $OpenBSD: xform.h,v 1.8 2001/08/28 12:20:43 ben Exp $ */
/*-
* The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
*
* This code was written by Angelos D. Keromytis in Athens, Greece, in
* February 2000. Network Security Technologies Inc. (NSTI) kindly
* supported the development of this code.
*
* Copyright (c) 2000 Angelos D. Keromytis
* Copyright (c) 2014 The FreeBSD Foundation
* All rights reserved.
*
* Portions of this software were developed by John-Mark Gurney
* under sponsorship of the FreeBSD Foundation and
* Rubicon Communications, LLC (Netgate).
*
* Permission to use, copy, and modify this software without fee
* is hereby granted, provided that this entire notice is included in
* all source code copies of any software which is or includes a copy or
* modification of this software.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
* PURPOSE.
*/
#ifndef _CRYPTO_XFORM_ENC_H_
#define _CRYPTO_XFORM_ENC_H_
#include <sys/malloc.h>
#include <sys/errno.h>
#include <crypto/blowfish/blowfish.h>
#include <crypto/des/des.h>
#include <crypto/rijndael/rijndael.h>
#include <crypto/camellia/camellia.h>
#include <opencrypto/cast.h>
#include <opencrypto/skipjack.h>
#include <opencrypto/cryptodev.h>
#include <opencrypto/xform_userland.h>
#define AESICM_BLOCKSIZE AES_BLOCK_LEN
#define AES_XTS_BLOCKSIZE 16
#define AES_XTS_IVSIZE 8
#define AES_XTS_ALPHA 0x87 /* GF(2^128) generator polynomial */
/* Declarations */
struct enc_xform {
int type;
char *name;
u_int16_t blocksize;
u_int16_t ivsize;
u_int16_t minkey, maxkey;
void (*encrypt) (caddr_t, u_int8_t *);
void (*decrypt) (caddr_t, u_int8_t *);
int (*setkey) (u_int8_t **, u_int8_t *, int len);
void (*zerokey) (u_int8_t **);
void (*reinit) (caddr_t, u_int8_t *);
};
extern struct enc_xform enc_xform_null;
extern struct enc_xform enc_xform_des;
extern struct enc_xform enc_xform_3des;
extern struct enc_xform enc_xform_blf;
extern struct enc_xform enc_xform_cast5;
extern struct enc_xform enc_xform_skipjack;
extern struct enc_xform enc_xform_rijndael128;
extern struct enc_xform enc_xform_aes_icm;
extern struct enc_xform enc_xform_aes_nist_gcm;
extern struct enc_xform enc_xform_aes_nist_gmac;
extern struct enc_xform enc_xform_aes_xts;
extern struct enc_xform enc_xform_arc4;
extern struct enc_xform enc_xform_camellia;
struct aes_icm_ctx {
u_int32_t ac_ek[4*(RIJNDAEL_MAXNR + 1)];
/* ac_block is initalized to IV */
u_int8_t ac_block[AESICM_BLOCKSIZE];
int ac_nr;
};
struct aes_xts_ctx {
rijndael_ctx key1;
rijndael_ctx key2;
u_int8_t tweak[AES_XTS_BLOCKSIZE];
};
#endif /* _CRYPTO_XFORM_ENC_H_ */