Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [qnx]

The tag has no usage guidance.

1
vote
1answer
352 views

Defeat RSA hash verification - QNX working example

I really liked the answer in this post: Defeat rsa hash verification However I do not really understand this part: "taking the signature s raised to the power of 3 modulus n we wind up with the ...
7
votes
1answer
304 views

How can I determine if NAND blocks are good blocks?

I'm trying to rescue some data from our hardware. On the board I have a pair of Samsung k9f4g08u0d NAND chips. Each chip has been dumped to include every block, including the spare areas. If I invert ...
2
votes
1answer
231 views

create pem from ecc signature bytes

I am researching an QNX ARM based car navigation and it seems this system has a backdoor that enables telnet access without password to the system if a challenge/response succeeds. When a file ...
5
votes
3answers
2k views

Defeat rsa hash verification

I am analysing an embedded system running QNX on armle, uname -a identifies it as: QNX mmx 6.5.0 2012/06/20-13:49:13EDT nVidia_Tegra2(T20)_Devlite_Boards armle Firmware updates come with a file ...
1
vote
2answers
712 views

run netcat on qnx (armle)

I am researching an embedded device which runs QNX. I can login via telnet as a user but don't have the root password (in parallel I am running oclHashCat with the hash from the shadow file but it ...
2
votes
0answers
924 views

USB not showing up on QNX in Qemu

I have spent some time reverse engineering a QNX 6.5.0 based system. I am pretty new to the Linux (Ubuntu) world and definitely new to QNX, Qemu, and embedded systems. Since the hardware is fairly ...
2
votes
1answer
394 views

What image format is ANIM1

I am investigating car navigation software which runs on QNX and want to replace the startup animation with my own. I have found the files in the firmware which have the extension .canim which likely ...
1
vote
1answer
5k views

Unpack QNX .img files

I am currently investigating firmware of an embedded system (car navigation) and have identified the OS as QNX. The firmware has .ifs files which I was able to extract/unpack using QNX dumpifs tool ...