| Shane Wang | f1939f7 | 2009-09-02 20:05:22 +1000 | [diff] [blame^] | 1 | /* |
| 2 | * Modified to interface to the Linux kernel |
| 3 | * Copyright (c) 2009, Intel Corporation. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| 16 | * Place - Suite 330, Boston, MA 02111-1307 USA. |
| 17 | */ |
| 18 | |
| 19 | #ifndef __CRYPTO_VMAC_H |
| 20 | #define __CRYPTO_VMAC_H |
| 21 | |
| 22 | /* -------------------------------------------------------------------------- |
| 23 | * VMAC and VHASH Implementation by Ted Krovetz (tdk@acm.org) and Wei Dai. |
| 24 | * This implementation is herby placed in the public domain. |
| 25 | * The authors offers no warranty. Use at your own risk. |
| 26 | * Please send bug reports to the authors. |
| 27 | * Last modified: 17 APR 08, 1700 PDT |
| 28 | * ----------------------------------------------------------------------- */ |
| 29 | |
| 30 | /* |
| 31 | * User definable settings. |
| 32 | */ |
| 33 | #define VMAC_TAG_LEN 64 |
| 34 | #define VMAC_KEY_SIZE 128/* Must be 128, 192 or 256 */ |
| 35 | #define VMAC_KEY_LEN (VMAC_KEY_SIZE/8) |
| 36 | #define VMAC_NHBYTES 128/* Must 2^i for any 3 < i < 13 Standard = 128*/ |
| 37 | |
| 38 | /* |
| 39 | * This implementation uses u32 and u64 as names for unsigned 32- |
| 40 | * and 64-bit integer types. These are defined in C99 stdint.h. The |
| 41 | * following may need adaptation if you are not running a C99 or |
| 42 | * Microsoft C environment. |
| 43 | */ |
| 44 | struct vmac_ctx { |
| 45 | u64 nhkey[(VMAC_NHBYTES/8)+2*(VMAC_TAG_LEN/64-1)]; |
| 46 | u64 polykey[2*VMAC_TAG_LEN/64]; |
| 47 | u64 l3key[2*VMAC_TAG_LEN/64]; |
| 48 | u64 polytmp[2*VMAC_TAG_LEN/64]; |
| 49 | u64 cached_nonce[2]; |
| 50 | u64 cached_aes[2]; |
| 51 | int first_block_processed; |
| 52 | }; |
| 53 | |
| 54 | typedef u64 vmac_t; |
| 55 | |
| 56 | struct vmac_ctx_t { |
| 57 | struct crypto_cipher *child; |
| 58 | struct vmac_ctx __vmac_ctx; |
| 59 | }; |
| 60 | |
| 61 | #endif /* __CRYPTO_VMAC_H */ |