| Damien Miller | 1f0311c | 2014-05-15 14:24:09 +1000 | [diff] [blame] | 1 | /* $OpenBSD: cipher-aesctr.h,v 1.1 2014/04/29 15:39:33 markus Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2014 Markus Friedl |
| 4 | * |
| 5 | * Permission to use, copy, modify, and distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 | */ |
| 17 | |
| 18 | #ifndef OPENSSH_AESCTR_H |
| 19 | #define OPENSSH_AESCTR_H |
| 20 | |
| 21 | #include "rijndael.h" |
| 22 | |
| 23 | #define AES_BLOCK_SIZE 16 |
| 24 | |
| 25 | typedef struct aesctr_ctx { |
| 26 | int rounds; /* keylen-dependent #rounds */ |
| 27 | u32 ek[4*(AES_MAXROUNDS + 1)]; /* encrypt key schedule */ |
| 28 | u8 ctr[AES_BLOCK_SIZE]; /* counter */ |
| 29 | } aesctr_ctx; |
| 30 | |
| 31 | void aesctr_keysetup(aesctr_ctx *x,const u8 *k,u32 kbits,u32 ivbits); |
| 32 | void aesctr_ivsetup(aesctr_ctx *x,const u8 *iv); |
| 33 | void aesctr_encrypt_bytes(aesctr_ctx *x,const u8 *m,u8 *c,u32 bytes); |
| 34 | |
| 35 | #endif |