21 #ifndef CRYPTOCONTEXT_H
22 #define CRYPTOCONTEXT_H
24 #include <commoncpp/config.h>
29 #define REPLAY_WINDOW_SIZE 64
41 #ifndef CRYPTOCONTEXTCTRL_H
46 #include <ccrtp/crypto/SrtpSymCrypto.h>
175 int32 masterKeyLength,
177 int32 masterSaltLength,
230 void srtpEncrypt(
RTPPacket* rtp, uint64 index, uint32 ssrc );
248 void srtpAuthenticate(
RTPPacket* rtp, uint32 roc, uint8* tag );
261 void deriveSrtpKeys(uint64 index);
275 uint64 guessIndex(uint16 newSeqNumber);
292 bool checkReplay(uint16 newSeqNumber);
303 void update( uint16 newSeqNumber );
354 CryptoContext* newCryptoContextForSSRC(uint32 ssrc,
int roc, int64 keyDerivRate);
366 int64 key_deriv_rate;
369 uint64 replay_window;
372 uint32 master_key_length;
373 uint32 master_key_srtp_use_nb;
374 uint32 master_key_srtcp_use_nb;
376 uint32 master_salt_length;
397 SrtpSymCrypto* cipher;
398 SrtpSymCrypto* f8Cipher;