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Diffstat (limited to 'cipher-aesctr.h')
-rw-r--r-- | cipher-aesctr.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/cipher-aesctr.h b/cipher-aesctr.h new file mode 100644 index 000000000..85d55bba2 --- /dev/null +++ b/cipher-aesctr.h | |||
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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 | ||