08-27-2009, 09:42 PM | #16 |
Fanatic
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Karma: 972
Join Date: Jul 2009
Device: The new iPad
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Good news from Sony!
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08-27-2009, 10:15 PM | #17 |
Connoisseur
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Karma: 3133
Join Date: Jan 2008
Location: Ontario, Canada
Device: sony ereader 500 & 600
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What's the good news from Sony? I only have duo pro, even with the firmware does this mean I will have to switch to SDs.
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08-28-2009, 07:00 AM | #18 |
Member
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Karma: 169
Join Date: Feb 2008
Location: Colorado
Device: Sony PRS-600
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Nah, the problem was corrected. It was user error. lol. Seems the 600 really doesn't like ntfs formatted memory cards. After formatting to default, both my pro-duo and the sd card I scrounged up work great.
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08-28-2009, 03:23 PM | #19 |
e-book reader
Posts: 41
Karma: 16
Join Date: Feb 2009
Location: North Carolina
Device: Kindle Paperwhite, Google Play Books on Samsung Tablet
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Uh! I'm using Linux. How can I update it?
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08-28-2009, 04:20 PM | #20 |
Wizard
Posts: 3,442
Karma: 300001
Join Date: Sep 2006
Location: Belgium
Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear
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Find a machine with Windows or OSX, or use a VM.
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09-09-2009, 06:21 PM | #21 |
Member
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Join Date: Sep 2009
Device: PRS-600
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What makes you say they are encrypted? I see a checksum file with insanely large hashes, and I see the raw images. I haven't delved into it much further.
What encryption mechanism are they using? You probably already found this, but their GPL code is up here: http://www.sony.net/Products/Linux/Audio/PRS-600.html |
09-09-2009, 06:38 PM | #22 | |
Wizard
Posts: 3,442
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Join Date: Sep 2006
Location: Belgium
Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear
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Quote:
We don't know what they use for PRS-600, I suspect some AES variant. The firmware updater code is Sony's own, not GPL, so it's not included in the public sources. |
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09-10-2009, 01:01 PM | #23 | |
Member
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Join Date: Sep 2009
Device: PRS-600
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Quote:
I just bought one of these (PRS-600) for my wife. I'm not sure how much face time I will get with it once I give it to her for her birthday tomorrow, but I'm definitely motivated to hack this baby just on principle alone. Is there a place to go to discuss hacking these things? I see there is a lightly trafficed #mobileread chan on freenode - is that a good place to go talk specifics and start banging on this thing? I'm mostly interested in getting an understanding of what is known about this device and then figuring out a plan of attack. If the updates have been signed with a key and verified with on the device before, I'm interested in how that was worked around before (did you find a way to replace the public key it was checking against on the device?) - also interested if you have any way to execute arbitrary code on these things. One more question - there are "updates" but how about "downgrades" to these devices? I'm guessing that the recent patch probably contains a fix to the null pointer dereference bug discovered in august - but if we have a way to execute unprivileged code on the device and a way to downgrade to a version with a kernel produced prior to august 11th or so, we might be able to poke a hole in the security layer on the device very easily by running whatever we want as root. (although I guess this kernel might be stripped down and not have any of the vulnerable options in it - since I know we are using the bluetooth module on the android one to poke through it... not sure which other modules might be vulnerable but there is at least one or two more) I'm definitely new to these devices, my most recent forays have been in the Android world where we just used that same kernel bug to create a "one click root" app to 'root' or 'jailbreak' the phone in one click. I don't know what kernel version it is running (is there a way to check?) - but I see that after the update it has 1.0.01.08040 as a prefix - perhaps for August 4th being the date of the software that it is running?? (I don't know their version numbering strategies, 08040 could just be a build number). If you pop onto freenode, drop me a pm and we can discuss a plan of attack - I go by RyeBrye there. Last edited by RyeBrye; 09-10-2009 at 01:07 PM. Reason: updating |
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