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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