pentateu / droidairplay Goto Github PK

From what I could see recently with various challenge exchange in AirPlay, and as noticed on the comment at
https://github.com/pentateu/DroidAirPlay/blob/master/src/main/java/nz/co/iswe/android/airplay/audio/RaopAudioHandler.java#L418 the AES Key comes in FairPlay encrypted instead of RSA encrypted and on a different key than it used to be. The code at https://github.com/pentateu/DroidAirPlay/blob/master/src/main/java/nz/co/iswe/android/airplay/audio/RaopAudioHandler.java#L484 only expects parsing the original rsaaeskey but as per the previous comments should also be handling the fpaeskey.

Do you guys have any idea how to go about decrypting that key given it's no longer RSA encrypted? I've seen many documents online about collecting the information sent by the fp-setup phases (as potential dynamic keys) used to decrypt the AES key later on, so rather than simply faking the response as the app does right now, we'd need to interpret those FPLY bytes that come in to be able to store the appropriate information to use when seeding the FP decryption algorithm used to decrypt the AES key late on.

Just thought I'd file this here to start a discussion around it.

AirPlay Video use, -_-|

Hello everyone,

Is it possible to have a version that we can import on Android Studio ?
If someone did it, it would be very cool !

Thank you !

We are getting delays in streaming audio bytes.