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04-02-2015, 02:19 AM   #451
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Has any one been able to do anything beneficial with all of this?

04-02-2015, 04:44 AM   #452
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End-user beneficial: No. shodan's work is most ready work there is and others just poke around and see what there is.

Hacker beneficial: Yes

These small bits of information give possibility to hackers get on hacking easier as not everyone needs to do all the same steps multiple times.
04-02-2015, 05:41 AM   #453
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QuoteOriginally posted by niceshot Quote
Has any one been able to do anything beneficial with all of this?
Like @anemone said, there is currently nothing useful being done for you. But this work -> hackers -> users.
04-02-2015, 06:37 AM   #454
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I don't have time to help with the project at present, but I wanted to take a moment to thank all you you who are and for posting your findings here. Way to go y'all.

04-02-2015, 06:46 AM - 1 Like   #455
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Well it is a good news in fact. Having 2 cores and complete hardware H.264 Codec in K-30 (I suppose 2nd core control codec), brings a chance of unlocking birate. But a lot of things to reverse and I do not have K-30 camera.

Last edited by bootcoder; 04-02-2015 at 06:56 AM.
04-12-2015, 12:44 PM   #456
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Left is K-30 code (ARM processor), right K-5 (FR80). As you see, very similar logic.
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04-15-2015, 07:53 AM   #457
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Firmware for K-S1 is not recognized by both pfwtool and frmcrypt.

Now available: A (new) downloadable firmware for the K-S1 and K-S2
I have tried to access the debug menu on my K-S1 (see #383) with files from 00077850.400 to 00077850.900. No luck.
My hope was to find the corresponding correct number with one of the decrypting tools when a new firmware would be available.
But now both tools give me an error like: "unknown firmware"

My guess still is that Pentax has closed this well known backdoor.

May I ask one experienced user/decrypter/coder to check this? Would be nice.
04-16-2015, 07:39 AM   #458
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QuoteOriginally posted by Giklab Quote
Like @anemone said, there is currently nothing useful being done for you. But this work -> hackers -> users.
as i see its irrelevant. if one cannot tweak and work with it on the camera its useless. need to see one example, save the case of 4 bits changed in k-7 thats it.

04-16-2015, 08:36 AM - 1 Like   #459
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QuoteOriginally posted by uttam.hathi Quote
as i see its irrelevant. if one cannot tweak and work with it on the camera its useless. need to see one example, save the case of 4 bits changed in k-7 thats it.
Then, Uttam, please provide your own solution. We'd all love to see it. Otherwise, please stop cluttering this thread and let the big boys work without having to address your complaints.
04-16-2015, 02:32 PM   #460
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QuoteOriginally posted by marabella Quote
Firmware for K-S1 is not recognized by both pfwtool and frmcrypt.
K-S1 firmware is not obfuscated at all. It is only compressed. It is a kind of LZ compression operating on bytes with sliding window of 4K. Not LZMA, not LZ4. I have identified 2 control codes, but 2 others still unknown.
(I am not compression expert)

Last edited by bootcoder; 04-17-2015 at 06:03 AM.
04-16-2015, 06:52 PM   #461
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if i can figure the pointers of the loader it will be a small step, viz play around loading any /similar set of similiar range of pentax.-[ k-x k-m -kr,] [k10, k20][k-7,k-5], the firmware also functins the control buttons thus it has to be similar set,
and mainly upgrading and downgrading knowingly, not an ability to flash into a version but not able to reverse.
this is the first step else nothing is relevant, one cannot flash a same version, this ability too would be relevant if changes are made.
NEED TO SEE THIS.
04-17-2015, 06:57 AM   #462
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QuoteOriginally posted by bootcoder Quote
K-S1 firmware is not obfuscated at all. It is only compressed. It is a kind of LZ compression operating on bytes with sliding window of 4K. Not LZMA, not LZ4. I have identified 2 control codes, but 2 others still unknown.
(I am not compression expert)


Thanks for the hint. I did want to try "binwalk" but now I'm firstly looking for a similar software which is Windows based.
I'm neither a coder nor a Linux guy. Just a curious user with sketchy programming skills.
04-17-2015, 06:20 PM   #463
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QuoteOriginally posted by marabella Quote
Thanks for the hint. I did want to try "binwalk" but now I'm firstly looking for a similar software which is Windows based.
I'm neither a coder nor a Linux guy. Just a curious user with sketchy programming skills.
welcome to the world of curosity, once u enter u will see many a fallacy
04-19-2015, 08:55 AM   #464
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what is this and where can I get it?

I don't wanna read all 30 pages to find out what it is and where i can get it.
And I would love to help somehow if I can (don't know how but still).
Also: Does the K-3 have the same kinda firmware as the K-30? And or: Does the hack work on K-3?
04-19-2015, 03:51 PM - 1 Like   #465
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One part is Shodan's PHDK
Another is Svenpeters Chrome decrypter.

I have some notes somewhere home about K-3 FW. I spent something like one night with so nothing much. K-3 and K-30 are different beasts.

So as always, start with other work and study what Shodan did. The pdf is great thing to read. Then start appyling IDA and your mind to FW and find something useful from FW and document it.

And so yes, you need to read first 20 pages of this to understand Shodan's work (it is really interesting stuff) and last ten to see how we are arguing boring stuff
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