Collaborate Disseminate
I have built a GPS based on an 8-bit AVR processor which is currently used to log flight data for competitions. I would like to create a signature file to go along with each log file which can be used to verify that the log f… Continue reading Signing logged data on embedded system
I need to encrypt and send update files of the order of 100K from a server, through a mobile app, to low power wireless embedded devices (32 bit). The file transfers will be infrequent. The mobile to device communications are slow (BLE) … Continue reading Encrypting OTA software updates files for embedded devices
I suspect that a network device (modem, router. switch, access point, etc) is compromised. What should I do?
Continue reading How do I deal with a compromised network device?
I’m currently researching into CAN security for in-vehicle communication. I would like to know if anyone knows a reason why the CAN payloads of an ECU communication (between CAN nodes) should be encrypted when integrity, authenticity and p… Continue reading Does CAN bus communication need encryption?
Embedded devices, such as routers, IP cameras, generally provide HTTPS access to the admin interface. These HTTPS implementations generally have a lot of problems (non-unique certificates, self-signed certificates, etc.), which make connec… Continue reading Best practices to implement HTTPS in embedded devices
I installed on my Linksys router Tomato firmware.
I saw
and now don’t understand how security updates work. It can’t be that there is no vulnerability since 2010.
Tomato Firmware v1.28.1816
Copyright (C) 2006-2010 Jonat… Continue reading security updates for embedded firmware Tomato (router) [closed]
I read another question about an embedded https daemon, which got me wondering:
How might one maintain secrecy about the private key within such an embedded system?
My logic is: If the device ships with the key inside it, and someone can… Continue reading How can an embedded system support HTTPS and also keep an SSL key safe
I’m trying to find out what nmap-commands crash an embedded-system. In the process I can see behaviour that I don’t understand:
On the system port 80 is open and 79 is closed.
nmap -p 79-80 -T5 -A -> system crashes
nmap -… Continue reading nmap crashing embedded-system in strange way
Parting from the reasonable supposition that "everything can be hacked", I am sure the answer is ‘yes.’ But is it something possible, or even feasible?
I know that aeroplane computer systems are proprietary, but that would be a p… Continue reading Is it possible to hack an aircraft