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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * SRTP encryption/decryption |
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| 3 | * Copyright (c) 2012 Martin Storsjo |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #ifndef AVFORMAT_SRTP_H |
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| 23 | #define AVFORMAT_SRTP_H |
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| 24 | |||
| 25 | #include |
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| 26 | |||
| 27 | struct AVAES; |
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| 28 | struct AVHMAC; |
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| 29 | |||
| 30 | struct SRTPContext { |
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| 31 | struct AVAES *aes; |
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| 32 | struct AVHMAC *hmac; |
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| 33 | int rtp_hmac_size, rtcp_hmac_size; |
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| 34 | uint8_t master_key[16]; |
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| 35 | uint8_t master_salt[14]; |
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| 36 | uint8_t rtp_key[16], rtcp_key[16]; |
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| 37 | uint8_t rtp_salt[14], rtcp_salt[14]; |
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| 38 | uint8_t rtp_auth[20], rtcp_auth[20]; |
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| 39 | int seq_largest, seq_initialized; |
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| 40 | uint32_t roc; |
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| 41 | |||
| 42 | uint32_t rtcp_index; |
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| 43 | }; |
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| 44 | |||
| 45 | int ff_srtp_set_crypto(struct SRTPContext *s, const char *suite, |
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| 46 | const char *params); |
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| 47 | void ff_srtp_free(struct SRTPContext *s); |
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| 48 | int ff_srtp_decrypt(struct SRTPContext *s, uint8_t *buf, int *lenptr); |
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| 49 | int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len, |
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| 50 | uint8_t *out, int outlen); |
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| 51 | |||
| 52 | #endif /* AVFORMAT_SRTP_H */ |