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 "%Z%%M% %I% %E% 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 */ 119