1 | /* |
2 | * Copyright (c) 2017, 2022-2023 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | |
29 | #include <sys/appleapiopts.h> |
30 | |
31 | #ifdef BSD_KERNEL_PRIVATE |
32 | |
33 | #ifndef _ESP_CHACHA_POLY_H_ |
34 | #define _ESP_CHACHA_POLY_H_ |
35 | |
36 | #define ESP_CHACHAPOLY_PAD_BOUND 1 |
37 | #define ESP_CHACHAPOLY_IV_LEN 8 |
38 | #define ESP_CHACHAPOLY_ICV_LEN 16 |
39 | #define ESP_CHACHAPOLY_KEYBITS_WITH_SALT 288 /* 32 bytes key + 4 bytes salt */ |
40 | |
41 | size_t esp_chachapoly_schedlen(const struct esp_algorithm *); |
42 | int esp_chachapoly_schedule(const struct esp_algorithm *, |
43 | struct secasvar *); |
44 | int esp_chachapoly_encrypt(struct mbuf *, size_t, size_t, struct secasvar *, |
45 | const struct esp_algorithm *, int); |
46 | int esp_chachapoly_decrypt(struct mbuf *, size_t, struct secasvar *, |
47 | const struct esp_algorithm *, int); |
48 | int esp_chachapoly_encrypt_data(struct secasvar *, uint8_t *, size_t, |
49 | struct newesp *, uint8_t *, size_t, uint8_t *, size_t); |
50 | int esp_chachapoly_decrypt_data(struct secasvar *, uint8_t *, size_t, |
51 | struct newesp *, uint8_t *, size_t, uint8_t *, size_t); |
52 | int esp_chachapoly_encrypt_finalize(struct secasvar *, unsigned char *, size_t); |
53 | int esp_chachapoly_decrypt_finalize(struct secasvar *, unsigned char *, size_t); |
54 | int esp_chachapoly_mature(struct secasvar *); |
55 | int esp_chachapoly_ivlen(const struct esp_algorithm *, struct secasvar *); |
56 | |
57 | #endif /* _ESP_CHACHA_POLY_H_ */ |
58 | #endif /* BSD_KERNEL_PRIVATE */ |
59 | |