The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/opencrypto/xform.h

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    1 /*      $FreeBSD: releng/8.0/sys/opencrypto/xform.h 169425 2007-05-09 19:37:02Z gnn $   */
    2 /*      $OpenBSD: xform.h,v 1.8 2001/08/28 12:20:43 ben Exp $   */
    3 
    4 /*-
    5  * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
    6  *
    7  * This code was written by Angelos D. Keromytis in Athens, Greece, in
    8  * February 2000. Network Security Technologies Inc. (NSTI) kindly
    9  * supported the development of this code.
   10  *
   11  * Copyright (c) 2000 Angelos D. Keromytis
   12  *
   13  * Permission to use, copy, and modify this software without fee
   14  * is hereby granted, provided that this entire notice is included in
   15  * all source code copies of any software which is or includes a copy or
   16  * modification of this software. 
   17  *
   18  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
   19  * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
   20  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
   21  * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
   22  * PURPOSE.
   23  */
   24 
   25 #ifndef _CRYPTO_XFORM_H_
   26 #define _CRYPTO_XFORM_H_
   27 
   28 #include <sys/md5.h>
   29 #include <crypto/sha1.h>
   30 #include <crypto/sha2/sha2.h>
   31 #include <opencrypto/rmd160.h>
   32 
   33 /* Declarations */
   34 struct auth_hash {
   35         int type;
   36         char *name;
   37         u_int16_t keysize;
   38         u_int16_t hashsize; 
   39         u_int16_t blocksize;
   40         u_int16_t ctxsize;
   41         void (*Init) (void *);
   42         int  (*Update) (void *, u_int8_t *, u_int16_t);
   43         void (*Final) (u_int8_t *, void *);
   44 };
   45 
   46 #define AH_ALEN_MAX     20      /* max authenticator hash length */
   47 
   48 struct enc_xform {
   49         int type;
   50         char *name;
   51         u_int16_t blocksize;
   52         u_int16_t minkey, maxkey;
   53         void (*encrypt) (caddr_t, u_int8_t *);
   54         void (*decrypt) (caddr_t, u_int8_t *);
   55         int (*setkey) (u_int8_t **, u_int8_t *, int len);
   56         void (*zerokey) (u_int8_t **);
   57 };
   58 
   59 struct comp_algo {
   60         int type;
   61         char *name;
   62         size_t minlen;
   63         u_int32_t (*compress) (u_int8_t *, u_int32_t, u_int8_t **);
   64         u_int32_t (*decompress) (u_int8_t *, u_int32_t, u_int8_t **);
   65 };
   66 
   67 union authctx {
   68         MD5_CTX md5ctx;
   69         SHA1_CTX sha1ctx;
   70         RMD160_CTX rmd160ctx;
   71         SHA256_CTX sha256ctx;
   72         SHA384_CTX sha384ctx;
   73         SHA512_CTX sha512ctx;
   74 };
   75 
   76 extern struct enc_xform enc_xform_null;
   77 extern struct enc_xform enc_xform_des;
   78 extern struct enc_xform enc_xform_3des;
   79 extern struct enc_xform enc_xform_blf;
   80 extern struct enc_xform enc_xform_cast5;
   81 extern struct enc_xform enc_xform_skipjack;
   82 extern struct enc_xform enc_xform_rijndael128;
   83 extern struct enc_xform enc_xform_arc4;
   84 extern struct enc_xform enc_xform_camellia;
   85 
   86 extern struct auth_hash auth_hash_null;
   87 extern struct auth_hash auth_hash_key_md5;
   88 extern struct auth_hash auth_hash_key_sha1;
   89 extern struct auth_hash auth_hash_hmac_md5;
   90 extern struct auth_hash auth_hash_hmac_sha1;
   91 extern struct auth_hash auth_hash_hmac_ripemd_160;
   92 extern struct auth_hash auth_hash_hmac_sha2_256;
   93 extern struct auth_hash auth_hash_hmac_sha2_384;
   94 extern struct auth_hash auth_hash_hmac_sha2_512;
   95 
   96 extern struct comp_algo comp_algo_deflate;
   97 
   98 #ifdef _KERNEL
   99 #include <sys/malloc.h>
  100 MALLOC_DECLARE(M_XDATA);
  101 #endif
  102 #endif /* _CRYPTO_XFORM_H_ */

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