mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 01:42:20 +00:00
acd554c103
This adds two protocols, but one of them is an internal implementation detail just used as an abstraction layer/generalization in the code. The RTMPE protocol implementation uses ffrtmpcrypt:// as an alternative to the tcp:// protocol. This allows moving most of the lower level logic out from the higher level generic rtmp code. Signed-off-by: Martin Storsjö <martin@martin.st>
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/*
|
|
* RTMPE encryption utilities
|
|
* Copyright (c) 2012 Samuel Pitoiset
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVFORMAT_RTMPCRYPT_H
|
|
#define AVFORMAT_RTMPCRYPT_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "url.h"
|
|
|
|
/**
|
|
* Initialize the Diffie-Hellmann context and generate the public key.
|
|
*
|
|
* @param h an URLContext
|
|
* @param buf handshake data (1536 bytes)
|
|
* @return zero on success, negative value otherwise
|
|
*/
|
|
int ff_rtmpe_gen_pub_key(URLContext *h, uint8_t *buf);
|
|
|
|
/**
|
|
* Compute the shared secret key and initialize the RC4 encryption.
|
|
*
|
|
* @param h an URLContext
|
|
* @param serverdata server data (1536 bytes)
|
|
* @param clientdata client data (1536 bytes)
|
|
* @param type the position of the server digest
|
|
* @return zero on success, negative value otherwise
|
|
*/
|
|
int ff_rtmpe_compute_secret_key(URLContext *h, const uint8_t *serverdata,
|
|
const uint8_t *clientdata, int type);
|
|
|
|
/**
|
|
* Encrypt the signature.
|
|
*
|
|
* @param h an URLContext
|
|
* @param signature the signature to encrypt
|
|
* @param digest the digest used for finding the encryption key
|
|
* @param type type of encryption (8 for XTEA, 9 for Blowfish)
|
|
*/
|
|
void ff_rtmpe_encrypt_sig(URLContext *h, uint8_t *signature,
|
|
const uint8_t *digest, int type);
|
|
|
|
/**
|
|
* Update the keystream and set RC4 keys for encryption.
|
|
*
|
|
* @param h an URLContext
|
|
* @return zero on success, negative value otherwise
|
|
*/
|
|
int ff_rtmpe_update_keystream(URLContext *h);
|
|
|
|
#endif /* AVFORMAT_RTMPCRYPT_H */
|