netwerk/srtp/src/crypto/include/aes_icm.h@6474c204b198 (annotated)
netwerk/srtp/src/crypto/include/aes_icm.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * aes_icm.h |
| michael@0 | 3 | * |
| michael@0 | 4 | * Header for AES Integer Counter Mode. |
| michael@0 | 5 | * |
| michael@0 | 6 | * David A. McGrew |
| michael@0 | 7 | * Cisco Systems, Inc. |
| michael@0 | 8 | * |
| michael@0 | 9 | */ |
| michael@0 | 10 | /* |
| michael@0 | 11 | * |
| michael@0 | 12 | * Copyright (c) 2001-2006, Cisco Systems, Inc. |
| michael@0 | 13 | * All rights reserved. |
| michael@0 | 14 | * |
| michael@0 | 15 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 16 | * modification, are permitted provided that the following conditions |
| michael@0 | 17 | * are met: |
| michael@0 | 18 | * |
| michael@0 | 19 | * Redistributions of source code must retain the above copyright |
| michael@0 | 20 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 21 | * |
| michael@0 | 22 | * Redistributions in binary form must reproduce the above |
| michael@0 | 23 | * copyright notice, this list of conditions and the following |
| michael@0 | 24 | * disclaimer in the documentation and/or other materials provided |
| michael@0 | 25 | * with the distribution. |
| michael@0 | 26 | * |
| michael@0 | 27 | * Neither the name of the Cisco Systems, Inc. nor the names of its |
| michael@0 | 28 | * contributors may be used to endorse or promote products derived |
| michael@0 | 29 | * from this software without specific prior written permission. |
| michael@0 | 30 | * |
| michael@0 | 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| michael@0 | 34 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| michael@0 | 35 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| michael@0 | 36 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| michael@0 | 37 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| michael@0 | 38 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| michael@0 | 39 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| michael@0 | 40 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| michael@0 | 41 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| michael@0 | 42 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 43 | * |
| michael@0 | 44 | */ |
| michael@0 | 45 | |
| michael@0 | 46 | #ifndef AES_ICM_H |
| michael@0 | 47 | #define AES_ICM_H |
| michael@0 | 48 | |
| michael@0 | 49 | #include "aes.h" |
| michael@0 | 50 | #include "cipher.h" |
| michael@0 | 51 | |
| michael@0 | 52 | typedef struct { |
| michael@0 | 53 | v128_t counter; /* holds the counter value */ |
| michael@0 | 54 | v128_t offset; /* initial offset value */ |
| michael@0 | 55 | v128_t keystream_buffer; /* buffers bytes of keystream */ |
| michael@0 | 56 | aes_expanded_key_t expanded_key; /* the cipher key */ |
| michael@0 | 57 | int bytes_in_buffer; /* number of unused bytes in buffer */ |
| michael@0 | 58 | } aes_icm_ctx_t; |
| michael@0 | 59 | |
| michael@0 | 60 | |
| michael@0 | 61 | err_status_t |
| michael@0 | 62 | aes_icm_context_init(aes_icm_ctx_t *c, |
| michael@0 | 63 | const unsigned char *key, |
| michael@0 | 64 | int key_len); |
| michael@0 | 65 | |
| michael@0 | 66 | err_status_t |
| michael@0 | 67 | aes_icm_set_iv(aes_icm_ctx_t *c, void *iv); |
| michael@0 | 68 | |
| michael@0 | 69 | err_status_t |
| michael@0 | 70 | aes_icm_encrypt(aes_icm_ctx_t *c, |
| michael@0 | 71 | unsigned char *buf, unsigned int *bytes_to_encr); |
| michael@0 | 72 | |
| michael@0 | 73 | err_status_t |
| michael@0 | 74 | aes_icm_output(aes_icm_ctx_t *c, |
| michael@0 | 75 | unsigned char *buf, int bytes_to_output); |
| michael@0 | 76 | |
| michael@0 | 77 | err_status_t |
| michael@0 | 78 | aes_icm_dealloc(cipher_t *c); |
| michael@0 | 79 | |
| michael@0 | 80 | err_status_t |
| michael@0 | 81 | aes_icm_encrypt_ismacryp(aes_icm_ctx_t *c, |
| michael@0 | 82 | unsigned char *buf, |
| michael@0 | 83 | unsigned int *enc_len, |
| michael@0 | 84 | int forIsmacryp); |
| michael@0 | 85 | |
| michael@0 | 86 | err_status_t |
| michael@0 | 87 | aes_icm_alloc_ismacryp(cipher_t **c, |
| michael@0 | 88 | int key_len, |
| michael@0 | 89 | int forIsmacryp); |
| michael@0 | 90 | |
| michael@0 | 91 | #endif /* AES_ICM_H */ |
| michael@0 | 92 |
