Archive for the ‘Linux’ Category
Wlan2eth 1.2 Release
Wlan2eth is a tool I wrote to convert 802.11 packet captures into Ethernet-style captures; I find this useful when working with various sundry tools that don’t properly handle 802.11 frames.
Adrian Crenshaw sent in a bug report for wlan2eth where he was getting the following output:
$ ./wlan2eth ../forjosh.pcap out.dump
Converted 0 packets.
Turns out I didn’t have support [...]
May 13, 2009
Posted in: 802.11, Linux, Tool 
No Comments
Locating ZigBee Devices
Since the introduction of the ZigBee-2004 specification, the ZigBee Alliance has made significant improvements in the security of sensor-based wireless networks. Despite improvements introduced in later amendments including the ZigBee-Pro specification, the security is not bullet-proof, due to the significant constraints of CPU, flash and memory availability in low-cost devices. Designing around these [...]
May 11, 2009
Posted in: Linux, Security, ZigBee 2 Comments
Reversing the Microchip Zena ZigBee Sniffer
A few days ago I bought a Microchip Zena ZigBee sniffer. This USB HID device comes with simple software for Windows that captures and decodes 2.4 GHz 802.15.4, ZigBee, MiWi (Microchip stack) and MiWi-P2P traffic. It’s $150, which is a little steep considering that it is a PIC18LF with USB and a MRF24J40 [...]
May 10, 2009
Posted in: Hardware, Linux, Reverse Engineering, ZigBee 3 Comments