Reverse Engineering Whispersync

Fmstrat · 01-02-2013, 01:40 PM

Hi all,

Now that the new Kindle Paperwhite no longer supports Text-To-Speech, and Amazon has yet to integrate TTS into the Android app, I've been debating on attempting to reverse engineer the Whispersync protocol so that I can either:

Make a draft reader for Android that does TTS and Whispersync or..
Run a home-grown Whispersync server and then DNS spoof a rooted Kindle and Android phone to use it

Before I start down the road of spoofing certs and MITM'ing I wanted to check in and see if anyone has attempted this before and how it went.

If I get no response that deters me, I'll use this thread as a progress map for where I get.

Thanks,
Ben

*EDIT*
I will likely replace option A with incorporating the code into Cool Reader, an open source reader for Android that already supports TTS: http://sourceforge.net/projects/crengine/ | https://play.google.com/store/apps/d...org.coolreader

qlob · 01-02-2013, 02:35 PM

Quote:

Originally Posted by Fmstrat

Hi all,

Now that the new Kindle Paperwhite no longer supports Text-To-Speech, and Amazon has yet to integrate TTS into the Android app, I've been debating on attempting to reverse engineer the Whispersync protocol so that I can either:

Make a draft reader for Android that does TTS and Whispersync or..
Run a home-grown Whispersync server and then DNS spoof a rooted Kindle and Android phone to use it

Before I start down the road of spoofing certs and MITM'ing I wanted to check in and see if anyone has attempted this before and how it went.

If I get no response that deters me, I'll use this thread as a progress map for where I get.

Thanks,
Ben

*EDIT*
I will likely replace option A with incorporating the code into Cool Reader, an open source reader for Android that already supports TTS: http://sourceforge.net/projects/crengine/ | https://play.google.com/store/apps/d...org.coolreader

Honestly, I doubt that Amazon would appreciate you using their whispernet service... Something similar has been done with getting the lists for books available in the store... I'll try and find the link....

What Kindle model?

EDIT: Closest thing I could find: https://www.mobileread.com/forums/sho...d.php?t=174403

Fmstrat · 01-02-2013, 03:03 PM

Quote:

Originally Posted by qlob

Honestly, I doubt that Amazon would appreciate you using their whispernet service... Something similar has been done with getting the lists for books available in the store... I'll try and find the link....

What Kindle model?

EDIT: Closest thing I could find: https://www.mobileread.com/forums/sho...d.php?t=174403

Wow, this is exactly what I was looking to accomplish and then some. I'll be trying this on a Paperwhite and Android device (see 1st post). Awesomely helpful, thanks.

Ben

ixtab · 01-02-2013, 03:59 PM

You'll probably have to run a MITM server which intercepts all your traffic with Amazon. As pwr posted, there already exists a similar project constrained to the Kindle Store. I'm *very* interested to see your results concerning Whispersync (or Amazon communications, in general), but I'm afraid that you will have to apply a similar MITM method, and that it will be quite some work. I'm looking forward to your results!

01-02-2013, 01:40 PM	#1
Fmstrat G:RSS-Web Creator Posts: 93 Karma: 14 Join Date: Aug 2010 Device: Kindle 3, PW, Nexus 4,10	Reverse Engineering Whispersync Hi all, Now that the new Kindle Paperwhite no longer supports Text-To-Speech, and Amazon has yet to integrate TTS into the Android app, I've been debating on attempting to reverse engineer the Whispersync protocol so that I can either: Make a draft reader for Android that does TTS and Whispersync or.. Run a home-grown Whispersync server and then DNS spoof a rooted Kindle and Android phone to use it Before I start down the road of spoofing certs and MITM'ing I wanted to check in and see if anyone has attempted this before and how it went. If I get no response that deters me, I'll use this thread as a progress map for where I get. Thanks, Ben EDIT I will likely replace option A with incorporating the code into Cool Reader, an open source reader for Android that already supports TTS: http://sourceforge.net/projects/crengine/ \| https://play.google.com/store/apps/d...org.coolreader Last edited by Fmstrat; 01-02-2013 at 02:12 PM.

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01-02-2013, 03:59 PM	#4
ixtab (offline) Posts: 2,907 Karma: 6736092 Join Date: Dec 2011 Device: K3, K4, K5, KPW, KPW2	You'll probably have to run a MITM server which intercepts all your traffic with Amazon. As pwr posted, there already exists a similar project constrained to the Kindle Store. I'm very interested to see your results concerning Whispersync (or Amazon communications, in general), but I'm afraid that you will have to apply a similar MITM method, and that it will be quite some work. I'm looking forward to your results!