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

     /*      $NetBSD: xform.c,v 1.15 2005/11/25 16:16:46 thorpej Exp $ */
     /*      $FreeBSD: src/sys/opencrypto/xform.c,v 1.1.2.1 2002/11/21 23:34:23 sam Exp $    */
     /*      $OpenBSD: xform.c,v 1.19 2002/08/16 22:47:25 dhartmei Exp $     */
     
     /*
      * The authors of this code are John Ioannidis (ji@tla.org),
      * Angelos D. Keromytis (kermit@csd.uch.gr) and
      * Niels Provos (provos@physnet.uni-hamburg.de).
      *
     * This code was written by John Ioannidis for BSD/OS in Athens, Greece,
     * in November 1995.
     *
     * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
     * by Angelos D. Keromytis.
     *
     * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
     * and Niels Provos.
     *
     * Additional features in 1999 by Angelos D. Keromytis.
     *
     * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
     * Angelos D. Keromytis and Niels Provos.
     *
     * Copyright (C) 2001, Angelos D. Keromytis.
     *
     * Permission to use, copy, and modify this software with or without fee
     * is hereby granted, provided that this entire notice is included in
     * all copies of any software which is or includes a copy or
     * modification of this software.
     * You may use this code under the GNU public license if you so wish. Please
     * contribute changes back to the authors under this freer than GPL license
     * so that we may further the use of strong encryption without limitations to
     * all.
     *
     * 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.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: xform.c,v 1.15 2005/11/25 16:16:46 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/malloc.h>
    
    #include <opencrypto/cryptodev.h>
    #include <opencrypto/xform.h>
    
    MALLOC_DEFINE(M_XDATA, "xform", "xform data buffers");
    
    const u_int8_t hmac_ipad_buffer[64] = {
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
            0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36
    };
    
    const u_int8_t hmac_opad_buffer[64] = {
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
            0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C
    };
    
    /* Encryption instances */
    struct enc_xform enc_xform_null = {
            CRYPTO_NULL_CBC, "NULL",
            /* NB: blocksize of 4 is to generate a properly aligned ESP header */
            4, 0, 256 /* 2048 bits, max key */
    };
    
    struct enc_xform enc_xform_des = {
            CRYPTO_DES_CBC, "DES",
            8, 8, 8
    };
    
    struct enc_xform enc_xform_3des = {
            CRYPTO_3DES_CBC, "3DES",
            8, 24, 24
    };
    
    struct enc_xform enc_xform_blf = {
            CRYPTO_BLF_CBC, "Blowfish",
            8, 5, 56 /* 448 bits, max key */
    };
    
    struct enc_xform enc_xform_cast5 = {
            CRYPTO_CAST_CBC, "CAST-128",
            8, 5, 16
   };
   
   struct enc_xform enc_xform_skipjack = {
           CRYPTO_SKIPJACK_CBC, "Skipjack",
           8, 10, 10
   };
   
   struct enc_xform enc_xform_rijndael128 = {
           CRYPTO_RIJNDAEL128_CBC, "Rijndael-128/AES",
           16, 8, 32
   };
   
   struct enc_xform enc_xform_arc4 = {
           CRYPTO_ARC4, "ARC4",
           1, 1, 32
   };
   
   /* Authentication instances */
   struct auth_hash auth_hash_null = {
           CRYPTO_NULL_HMAC, "NULL-HMAC",
           0, 0, 12, sizeof(int)                   /* NB: context isn't used */
   };
   
   struct auth_hash auth_hash_hmac_md5_96 = {
           CRYPTO_MD5_HMAC, "HMAC-MD5",
           16, 16, 12, sizeof(MD5_CTX)
   };
   
   struct auth_hash auth_hash_hmac_sha1_96 = {
           CRYPTO_SHA1_HMAC, "HMAC-SHA1",
           20, 20, 12, sizeof(SHA1_CTX)
   };
   
   struct auth_hash auth_hash_hmac_ripemd_160_96 = {
           CRYPTO_RIPEMD160_HMAC, "HMAC-RIPEMD-160",
           20, 20, 12, sizeof(RMD160_CTX)
   };
   
   struct auth_hash auth_hash_key_md5 = {
           CRYPTO_MD5_KPDK, "Keyed MD5",
           0, 16, 16, sizeof(MD5_CTX)
   };
   
   struct auth_hash auth_hash_key_sha1 = {
           CRYPTO_SHA1_KPDK, "Keyed SHA1",
           0, 20, 20, sizeof(SHA1_CTX)
   };
   
   struct auth_hash auth_hash_md5 = {
           CRYPTO_MD5, "MD5",
           0, 16, 16, sizeof(MD5_CTX)
   };
   
   struct auth_hash auth_hash_sha1 = {
           CRYPTO_SHA1, "SHA1",
           0, 20, 20, sizeof(SHA1_CTX)
   };
   
   struct auth_hash auth_hash_hmac_sha2_256 = {
           CRYPTO_SHA2_HMAC, "HMAC-SHA2",
           32, 32, 12, sizeof(SHA256_CTX)
   };
   
   struct auth_hash auth_hash_hmac_sha2_384 = {
           CRYPTO_SHA2_HMAC, "HMAC-SHA2-384",
           48, 48, 12, sizeof(SHA384_CTX)
   };
   
   struct auth_hash auth_hash_hmac_sha2_512 = {
           CRYPTO_SHA2_HMAC, "HMAC-SHA2-512",
           64, 64, 12, sizeof(SHA512_CTX)
   };
   
   /* Compression instance */
   struct comp_algo comp_algo_deflate = {
           CRYPTO_DEFLATE_COMP, "Deflate",
           90
   };

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