bsd/netinet6/esp_chachapoly.h

   1 /*
   2  * Copyright (c) 2017 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 int 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_finalize(struct secasvar *, unsigned char *, unsigned int);
  49 int esp_chachapoly_decrypt_finalize(struct secasvar *, unsigned char *, unsigned int);
  50 int esp_chachapoly_mature(struct secasvar *);
  51 int esp_chachapoly_ivlen(const struct esp_algorithm *, struct secasvar *);
  52
  53 #endif /* _ESP_CHACHA_POLY_H_ */
  54 #endif /* BSD_KERNEL_PRIVATE */