Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  1. /*
  2.  * SRTP encryption/decryption
  3.  * Copyright (c) 2012 Martin Storsjo
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. #ifndef AVFORMAT_SRTP_H
  23. #define AVFORMAT_SRTP_H
  24.  
  25. #include <stdint.h>
  26.  
  27. struct AVAES;
  28. struct AVHMAC;
  29.  
  30. struct SRTPContext {
  31.     struct AVAES *aes;
  32.     struct AVHMAC *hmac;
  33.     int rtp_hmac_size, rtcp_hmac_size;
  34.     uint8_t master_key[16];
  35.     uint8_t master_salt[14];
  36.     uint8_t rtp_key[16],  rtcp_key[16];
  37.     uint8_t rtp_salt[14], rtcp_salt[14];
  38.     uint8_t rtp_auth[20], rtcp_auth[20];
  39.     int seq_largest, seq_initialized;
  40.     uint32_t roc;
  41.  
  42.     uint32_t rtcp_index;
  43. };
  44.  
  45. int ff_srtp_set_crypto(struct SRTPContext *s, const char *suite,
  46.                        const char *params);
  47. void ff_srtp_free(struct SRTPContext *s);
  48. int ff_srtp_decrypt(struct SRTPContext *s, uint8_t *buf, int *lenptr);
  49. int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len,
  50.                     uint8_t *out, int outlen);
  51.  
  52. #endif /* AVFORMAT_SRTP_H */
  53.