public static SrtpPolicy CreateSrtpPolicy(byte[] dtlsKeyMaterial)
{
var derivedKeys = new DtlsSrtpDerivedKeys(dtlsKeyMaterial, SrtpConstants.SrtpDefaultMasterKeyKeyLength, SrtpConstants.SrtpDefaultMasterKeySaltLength);
var srtpPolicy = new SrtpPolicy
{
MasterKey = derivedKeys.ServerKey,
MasterSalt = derivedKeys.ServerSalt
};
return(srtpPolicy);
}
/**
* Construct a SRTPTransformEngine based on given master encryption key,
* master salt key and SRTP/SRTCP policy.
*
* @param masterKey
* the master encryption key
* @param masterSalt
* the master salt key
* @param srtpPolicy
* SRTP policy
* @param srtcpPolicy
* SRTCP policy
*/
public SrtpTransformEngine(byte[] masterKey, byte[] masterSalt, SrtpPolicy srtpPolicy, SrtpPolicy srtcpPolicy)
{
defaultContext = new SrtpCryptoContext(0, 0, 0, masterKey, masterSalt, srtpPolicy);
defaultContextControl = new SrtcpCryptoContext(0, masterKey, masterSalt, srtcpPolicy);
}