repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * RTMPE encryption utilities | |
| 3 | * Copyright (c) 2012 Samuel Pitoiset | |
| 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_RTMPCRYPT_H | |
| 23 | #define AVFORMAT_RTMPCRYPT_H | |
| 24 | ||
| 25 | #include <stdint.h> | |
| 26 | ||
| 27 | #include "url.h" | |
| 28 | ||
| 29 | /** | |
| 30 | * Initialize the Diffie-Hellmann context and generate the public key. | |
| 31 | * | |
| 32 | * @param h an URLContext | |
| 33 | * @param buf handshake data (1536 bytes) | |
| 34 | * @return zero on success, negative value otherwise | |
| 35 | */ | |
| 36 | int ff_rtmpe_gen_pub_key(URLContext *h, uint8_t *buf); | |
| 37 | ||
| 38 | /** | |
| 39 | * Compute the shared secret key and initialize the RC4 encryption. | |
| 40 | * | |
| 41 | * @param h an URLContext | |
| 42 | * @param serverdata server data (1536 bytes) | |
| 43 | * @param clientdata client data (1536 bytes) | |
| 44 | * @param type the position of the server digest | |
| 45 | * @return zero on success, negative value otherwise | |
| 46 | */ | |
| 47 | int ff_rtmpe_compute_secret_key(URLContext *h, const uint8_t *serverdata, | |
| 48 | const uint8_t *clientdata, int type); | |
| 49 | ||
| 50 | /** | |
| 51 | * Encrypt the signature. | |
| 52 | * | |
| 53 | * @param h an URLContext | |
| 54 | * @param signature the signature to encrypt | |
| 55 | * @param digest the digest used for finding the encryption key | |
| 56 | * @param type type of encryption (8 for XTEA, 9 for Blowfish) | |
| 57 | */ | |
| 58 | void ff_rtmpe_encrypt_sig(URLContext *h, uint8_t *signature, | |
| 59 | const uint8_t *digest, int type); | |
| 60 | ||
| 61 | /** | |
| 62 | * Update the keystream and set RC4 keys for encryption. | |
| 63 | * | |
| 64 | * @param h an URLContext | |
| 65 | * @return zero on success, negative value otherwise | |
| 66 | */ | |
| 67 | int ff_rtmpe_update_keystream(URLContext *h); | |
| 68 | ||
| 69 | #endif /* AVFORMAT_RTMPCRYPT_H */ |