Omnimaga

General Discussion => Technology and Development => Other => Topic started by: Zera on July 23, 2010, 08:04:36 pm

Title: Embedded operating systems, third-party firmwares - hacking mobile devices?
Post by: Zera on July 23, 2010, 08:04:36 pm

I was looking into possibilities with my current mobile phone, and I'm wondering if there are any third-party systems or firmwares that could be flashed to the device. It's a Casio g'zOne Boulder. The phone's default software is very restrictive, and quite limited with multimedia support. The data protocol that allows files to be freely exchanged from the phone to a computer has been purposefully obstructed for whatever reason, so I had to get creative about how I put files on the device. (ended up placing the files on a MicroSD card, which now acts as a middle-man between my computer and the phone) It would be nice to have some operating system that doesn't throw a wall up anytime I try to install software or add multimedia. Actually, I can't install any software at all, since the phone's OS only supports BREW apps. (which have to be signed, and aren't free)

If anyone has experience with this sort of hacking, I would appreciate any insight about what sort of options might be available for my device.

If there's nothing available, I may just get a smart phone in the future.

Title: Re: Embedded operating systems, third-party firmwares - hacking mobile devices?
Post by: meishe91 on July 23, 2010, 09:37:22 pm

The best place I would suggest looking is over at XDA-Developers (http://www.xda-developers.com/) in their forum. Though I don't know if they will have a topic about your type of phone. You could always ask there though and see if anyone knows anything.

Title: Re: Embedded operating systems, third-party firmwares - hacking mobile devices?
Post by: Lionel Debroux on July 24, 2010, 02:28:40 am

If signature is done through 512-bit RSA keys, it's easy to crack. Anything significantly longer than this (the next commonly used RSA key size is 768 bits) is too hard.

Title: Re: Embedded operating systems, third-party firmwares - hacking mobile devices?
Post by: Zera on July 24, 2010, 01:11:40 pm

I checked the XDA community, but they only seem to focus on smart phones. My model isn't listed there. Thanks for the resource, anyway.

I doubt these kinds of phones are really hacked. Maybe the hardware is substantially different from smart phones, which are more oriented like conventional computers. (and thus easier to do *something* with)

Title: Re: Embedded operating systems, third-party firmwares - hacking mobile devices?
Post by: meishe91 on July 26, 2010, 10:42:50 pm

Ah ok, ya, that was what I was afraid of. Sorry you had no luck at XDA.