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xform.h revision 1.5.4.2 
      1 /*	$NetBSD: xform.h,v 1.5.4.2 2004/08/03 10:56:25 skrll Exp $ */
      2 /*	$FreeBSD: src/sys/opencrypto/xform.h,v 1.1.2.1 2002/11/21 23:34:23 sam Exp $	*/
      3 /*	$OpenBSD: xform.h,v 1.10 2002/04/22 23:10:09 deraadt Exp $	*/
      4 
      5 /*
      6  * The author of this code is Angelos D. Keromytis (angelos (at) cis.upenn.edu)
      7  *
      8  * This code was written by Angelos D. Keromytis in Athens, Greece, in
      9  * February 2000. Network Security Technologies Inc. (NSTI) kindly
     10  * supported the development of this code.
     11  *
     12  * Copyright (c) 2000 Angelos D. Keromytis
     13  *
     14  * Permission to use, copy, and modify this software with or without fee
     15  * is hereby granted, provided that this entire notice is included in
     16  * all source code copies of any software which is or includes a copy or
     17  * modification of this software.
     18  *
     19  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
     20  * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
     21  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
     22  * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
     23  * PURPOSE.
     24  */
     25 
     26 #ifndef _CRYPTO_XFORM_H_
     27 #define _CRYPTO_XFORM_H_
     28 
     29 #include <sys/md5.h>
     30 #include <sys/sha1.h>
     31 #include <crypto/sha2/sha2.h>
     32 #include <crypto/ripemd160/rmd160.h>
     33 
     34 /* Declarations */
     35 struct auth_hash {
     36 	int type;
     37 	char *name;
     38 	u_int16_t keysize;
     39 	u_int16_t hashsize;
     40 	u_int16_t authsize;
     41 	u_int16_t ctxsize;
     42 	void (*Init) (void *);
     43 	int  (*Update) (void *, const u_int8_t *, u_int16_t);
     44 	void (*Final) (u_int8_t *, void *);
     45 };
     46 
     47 /* Provide array-limit for clients (e.g., netipsec) */
     48 #define	AH_ALEN_MAX	20	/* max authenticator hash length */
     49 
     50 struct enc_xform {
     51 	int type;
     52 	char *name;
     53 	u_int16_t blocksize;
     54 	u_int16_t minkey, maxkey;
     55 	void (*encrypt) (caddr_t, u_int8_t *);
     56 	void (*decrypt) (caddr_t, u_int8_t *);
     57 	int (*setkey) (u_int8_t **, const u_int8_t *, int len);
     58 	void (*zerokey) (u_int8_t **);
     59 };
     60 
     61 struct comp_algo {
     62 	int type;
     63 	char *name;
     64 	size_t minlen;
     65 	u_int32_t (*compress) (u_int8_t *, u_int32_t, u_int8_t **);
     66 	u_int32_t (*decompress) (u_int8_t *, u_int32_t, u_int8_t **);
     67 };
     68 
     69 union authctx {
     70 	MD5_CTX md5ctx;
     71 	SHA1_CTX sha1ctx;
     72 	RMD160_CTX rmd160ctx;
     73 	SHA256_CTX sha256ctx;
     74 	SHA384_CTX sha384ctx;
     75 	SHA512_CTX sha512ctx;
     76 };
     77 
     78 extern struct enc_xform enc_xform_null;
     79 extern struct enc_xform enc_xform_des;
     80 extern struct enc_xform enc_xform_3des;
     81 extern struct enc_xform enc_xform_blf;
     82 extern struct enc_xform enc_xform_cast5;
     83 extern struct enc_xform enc_xform_skipjack;
     84 extern struct enc_xform enc_xform_rijndael128;
     85 extern struct enc_xform enc_xform_arc4;
     86 
     87 extern struct auth_hash auth_hash_null;
     88 extern struct auth_hash auth_hash_md5;
     89 extern struct auth_hash auth_hash_sha1;
     90 extern struct auth_hash auth_hash_key_md5;
     91 extern struct auth_hash auth_hash_key_sha1;
     92 extern struct auth_hash auth_hash_hmac_md5_96;
     93 extern struct auth_hash auth_hash_hmac_sha1_96;
     94 extern struct auth_hash auth_hash_hmac_ripemd_160_96;
     95 extern struct auth_hash auth_hash_hmac_sha2_256;
     96 extern struct auth_hash auth_hash_hmac_sha2_384;
     97 extern struct auth_hash auth_hash_hmac_sha2_512;
     98 
     99 extern struct comp_algo comp_algo_deflate;
    100 
    101 #ifdef _KERNEL
    102 #include <sys/malloc.h>
    103 MALLOC_DECLARE(M_XDATA);
    104 #endif
    105 #endif /* _CRYPTO_XFORM_H_ */
    106