| /* |
| * Modified to interface to the Linux kernel |
| * Copyright (c) 2009, Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| * Place - Suite 330, Boston, MA 02111-1307 USA. |
| */ |
| |
| #ifndef __CRYPTO_VMAC_H |
| #define __CRYPTO_VMAC_H |
| |
| /* -------------------------------------------------------------------------- |
| * VMAC and VHASH Implementation by Ted Krovetz (tdk@acm.org) and Wei Dai. |
| * This implementation is herby placed in the public domain. |
| * The authors offers no warranty. Use at your own risk. |
| * Please send bug reports to the authors. |
| * Last modified: 17 APR 08, 1700 PDT |
| * ----------------------------------------------------------------------- */ |
| |
| /* |
| * User definable settings. |
| */ |
| #define VMAC_TAG_LEN 64 |
| #define VMAC_KEY_SIZE 128/* Must be 128, 192 or 256 */ |
| #define VMAC_KEY_LEN (VMAC_KEY_SIZE/8) |
| #define VMAC_NHBYTES 128/* Must 2^i for any 3 < i < 13 Standard = 128*/ |
| |
| /* |
| * This implementation uses u32 and u64 as names for unsigned 32- |
| * and 64-bit integer types. These are defined in C99 stdint.h. The |
| * following may need adaptation if you are not running a C99 or |
| * Microsoft C environment. |
| */ |
| struct vmac_ctx { |
| u64 nhkey[(VMAC_NHBYTES/8)+2*(VMAC_TAG_LEN/64-1)]; |
| u64 polykey[2*VMAC_TAG_LEN/64]; |
| u64 l3key[2*VMAC_TAG_LEN/64]; |
| u64 polytmp[2*VMAC_TAG_LEN/64]; |
| u64 cached_nonce[2]; |
| u64 cached_aes[2]; |
| int first_block_processed; |
| }; |
| |
| typedef u64 vmac_t; |
| |
| struct vmac_ctx_t { |
| struct crypto_cipher *child; |
| struct vmac_ctx __vmac_ctx; |
| }; |
| |
| #endif /* __CRYPTO_VMAC_H */ |