1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 #ifndef _AES_IMPL_H
  27 #define _AES_IMPL_H
  28 
  29 #pragma ident   "@(#)aes_impl.h 1.3     08/02/26 SMI"
  30 
  31 /*
  32  * Common definitions used by AES.
  33  */
  34 
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38 
  39 #define AES_BLOCK_LEN 16
  40 
  41 #define AES_COPY_BLOCK(src, dst) \
  42         (dst)[0] = (src)[0]; \
  43         (dst)[1] = (src)[1]; \
  44         (dst)[2] = (src)[2]; \
  45         (dst)[3] = (src)[3]; \
  46         (dst)[4] = (src)[4]; \
  47         (dst)[5] = (src)[5]; \
  48         (dst)[6] = (src)[6]; \
  49         (dst)[7] = (src)[7]; \
  50         (dst)[8] = (src)[8]; \
  51         (dst)[9] = (src)[9]; \
  52         (dst)[10] = (src)[10]; \
  53         (dst)[11] = (src)[11]; \
  54         (dst)[12] = (src)[12]; \
  55         (dst)[13] = (src)[13]; \
  56         (dst)[14] = (src)[14]; \
  57         (dst)[15] = (src)[15]
  58 
  59 #define AES_XOR_BLOCK(src, dst) \
  60         (dst)[0] ^= (src)[0]; \
  61         (dst)[1] ^= (src)[1]; \
  62         (dst)[2] ^= (src)[2]; \
  63         (dst)[3] ^= (src)[3]; \
  64         (dst)[4] ^= (src)[4]; \
  65         (dst)[5] ^= (src)[5]; \
  66         (dst)[6] ^= (src)[6]; \
  67         (dst)[7] ^= (src)[7]; \
  68         (dst)[8] ^= (src)[8]; \
  69         (dst)[9] ^= (src)[9]; \
  70         (dst)[10] ^= (src)[10]; \
  71         (dst)[11] ^= (src)[11]; \
  72         (dst)[12] ^= (src)[12]; \
  73         (dst)[13] ^= (src)[13]; \
  74         (dst)[14] ^= (src)[14]; \
  75         (dst)[15] ^= (src)[15]
  76 
  77 #define AES_MINBITS             128
  78 #define AES_MINBYTES            (AES_MINBITS >> 3)
  79 #define AES_MAXBITS             256
  80 #define AES_MAXBYTES            (AES_MAXBITS >> 3)
  81 
  82 #define AES_MIN_KEY_BYTES       (AES_MINBITS >> 3)
  83 #define AES_MAX_KEY_BYTES       (AES_MAXBITS >> 3)
  84 #define AES_192_KEY_BYTES       24
  85 #define AES_IV_LEN              16
  86 
  87 #define AES_32BIT_KS            32
  88 #define AES_64BIT_KS            64
  89 
  90 #define MAX_AES_NR              14
  91 
  92 typedef union {
  93         uint64_t        ks64[(MAX_AES_NR + 1) * 4];
  94         uint32_t        ks32[(MAX_AES_NR + 1) * 4];
  95 } aes_ks_t;
  96 
  97 typedef struct aes_key aes_key_t;
  98 struct aes_key {
  99         int             nr;
 100         int             type;
 101         aes_ks_t        encr_ks;
 102         aes_ks_t        decr_ks;
 103 };
 104 
 105 extern void aes_encrypt_block(void *, uint8_t *, uint8_t *);
 106 extern void aes_decrypt_block(void *, uint8_t *, uint8_t *);
 107 extern void aes_init_keysched(uint8_t *, uint_t, void *);
 108 extern void *aes_alloc_keysched(size_t *, int);
 109 extern void aes_encrypt_impl(const aes_ks_t *ks, int Nr, const uint32_t pt[4],
 110     uint32_t ct[4]);
 111 extern void aes_decrypt_impl(const aes_ks_t *ks, int Nr, const uint32_t ct[4],
 112     uint32_t pt[4]);
 113 
 114 #ifdef  __cplusplus
 115 }
 116 #endif
 117 
 118 #endif  /* _AES_IMPL_H */