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52 lines
1.6 KiB
52 lines
1.6 KiB
/* |
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* SRTP encryption/decryption |
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* Copyright (c) 2012 Martin Storsjo |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVFORMAT_SRTP_H |
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#define AVFORMAT_SRTP_H |
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#include <stdint.h> |
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struct AVAES; |
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struct AVHMAC; |
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struct SRTPContext { |
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struct AVAES *aes; |
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struct AVHMAC *hmac; |
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int rtp_hmac_size, rtcp_hmac_size; |
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uint8_t master_key[16]; |
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uint8_t master_salt[14]; |
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uint8_t rtp_key[16], rtcp_key[16]; |
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uint8_t rtp_salt[14], rtcp_salt[14]; |
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uint8_t rtp_auth[20], rtcp_auth[20]; |
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int seq_largest, seq_initialized; |
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uint32_t roc; |
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uint32_t rtcp_index; |
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}; |
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int ff_srtp_set_crypto(struct SRTPContext *s, const char *suite, |
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const char *params); |
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void ff_srtp_free(struct SRTPContext *s); |
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int ff_srtp_decrypt(struct SRTPContext *s, uint8_t *buf, int *lenptr); |
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int ff_srtp_encrypt(struct SRTPContext *s, const uint8_t *in, int len, |
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uint8_t *out, int outlen); |
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#endif /* AVFORMAT_SRTP_H */
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