Decoding AirPlay Mirroring Protocol

Question

I want my app to mirror the display of my iPad 2 to my Mac.

I have published the _airplay._tcp service and am listening on the port 7100. The app shows in the AirPlay menu and the Mirroring option is also there. Video and audio streaming work perfectly.

But I don't know how to decode the FairPlay encryption (POST /fp-setup) to support AirPlay mirroring. I have taken reference from http://www.aorensoftware.com/blog/2011/08/20/exploring-airplay-mirroring-internals/. If anyone has any idea on how to do that, please tell me.

This question is currently intractable, because the exact specifications of FairPlay encryption [have not been reverse-engineered by the community](https://en.wikipedia.org/wiki/AirPlay#Protocols). The effort is noble, but in the scope of answering this question, potential answerers will very likely expose themselves (and SO) to significant legal exposure from Apple. I wish you the best of luck in your endeavors, though. — MrGomez, Apr 06 '12 at 20:15
Any News? It seems that plenty of products eg. Reflections / Airserver and others now have got a workable solution… it would be great to hear if either of you have got anywhere. — Werewolve, Jan 23 '13 at 15:04

score 2 · Answer 1 · answered Apr 13 '12 at 15:29

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Check out AirServer -> they've already done this and it works flawlessly (almost)..

answered Apr 13 '12 at 15:29

Nathan B

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+1: AirServer works just fine. For presentations, etc. really helpful. – Jonas Schnelli Apr 13 '12 at 15:32
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does someone have airserver code or some link that may give some idea how it works? – Ana Feb 26 '14 at 06:43

score 1 · Answer 2 · edited Dec 14 '14 at 19:22

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They are using AES encryption, -- partially right. But very long code in fp-setup handshaking,(First FP-SETUP, Second FP-SETUP, fpaeskey encryption) and also the real decryption part is Apple's customized module.

edited Dec 14 '14 at 19:22

Brad Larson

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answered Dec 13 '14 at 14:13

Enji Yan

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Decoding AirPlay Mirroring Protocol

2 Answers2

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