tor-browser

The Tor Browser
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aes_icm_ext.h (2715B)

      1 /*
      2 * aes_icm.h
      3 *
      4 * Header for AES Integer Counter Mode.
      5 *
      6 * David A. McGrew
      7 * Cisco Systems, Inc.
      8 *
      9 */
     10 /*
     11 *
     12 * Copyright (c) 2001-2017, Cisco Systems, Inc.
     13 * All rights reserved.
     14 *
     15 * Redistribution and use in source and binary forms, with or without
     16 * modification, are permitted provided that the following conditions
     17 * are met:
     18 *
     19 *   Redistributions of source code must retain the above copyright
     20 *   notice, this list of conditions and the following disclaimer.
     21 *
     22 *   Redistributions in binary form must reproduce the above
     23 *   copyright notice, this list of conditions and the following
     24 *   disclaimer in the documentation and/or other materials provided
     25 *   with the distribution.
     26 *
     27 *   Neither the name of the Cisco Systems, Inc. nor the names of its
     28 *   contributors may be used to endorse or promote products derived
     29 *   from this software without specific prior written permission.
     30 *
     31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     34 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     35 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
     36 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     37 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     38 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     42 * OF THE POSSIBILITY OF SUCH DAMAGE.
     43 *
     44 */
     45 
     46 #ifndef AES_ICM_H
     47 #define AES_ICM_H
     48 
     49 #include "cipher.h"
     50 #include "datatypes.h"
     51 
     52 #ifdef OPENSSL
     53 
     54 #include <openssl/evp.h>
     55 #include <openssl/aes.h>
     56 
     57 typedef struct {
     58    v128_t counter; /* holds the counter value          */
     59    v128_t offset;  /* initial offset value             */
     60    int key_size;
     61    EVP_CIPHER_CTX *ctx;
     62 } srtp_aes_icm_ctx_t;
     63 
     64 #endif /* OPENSSL */
     65 
     66 #ifdef MBEDTLS
     67 
     68 #include <mbedtls/aes.h>
     69 typedef struct {
     70    v128_t counter; /* holds the counter value          */
     71    v128_t offset;  /* initial offset value             */
     72    v128_t stream_block;
     73    size_t nc_off;
     74    int key_size;
     75    mbedtls_aes_context *ctx;
     76 } srtp_aes_icm_ctx_t;
     77 
     78 #endif /* MBEDTLS */
     79 
     80 #ifdef NSS
     81 
     82 #define NSS_PKCS11_2_0_COMPAT 1
     83 
     84 #include <nss.h>
     85 #include <pk11pub.h>
     86 
     87 typedef struct {
     88    v128_t counter;
     89    v128_t offset;
     90    int key_size;
     91    uint8_t iv[16];
     92    NSSInitContext *nss;
     93    PK11SymKey *key;
     94    PK11Context *ctx;
     95 } srtp_aes_icm_ctx_t;
     96 
     97 #endif /* NSS */
     98 
     99 #endif /* AES_ICM_H */