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Locally Exploiting Wireless Sensors

Type
Video
Tags
embedded, exploiting, wireless
Authors
Travis Goodspeed
Event
HAR 2009
Indexed on
Mar 25, 2013
URL
http://ftp.selfnet.de/videos/har2009/326_l2589_Locally_Exploiting_Wireless_Sensors.mp4
File name
326_l2589_Locally_Exploiting_Wireless_Sensors.mp4
File size
200.5 MB
MD5
e8041d5568f63c7dbf265f1984fc471e
SHA1
763d75ef8d1cf990a0c241d2447b9abadcb2dfdf

Wireless sensors are often built with a microcontroller and a radio chip, connected only by a SPI bus. The radio, not the MCU, is responsible for symmetric cryptography of each packet. When the key is loaded, it is sent as cleartext over the SPI bus, and an attacker with local access can steal the key using a few syringe probes and readily available hardware. This attack and other local attacks against wireless sensor networks will be presented in detail, including a live demo of an AES128 key being extracted from an operational network. Following the conclusion of the lecture, audience members will be brought onstage to perform the attack themselves on various pieces of example hardware.

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