The grenade timer: Fortifying the watchdog timer against malicious mobile code (2000) [4 citations — 1 self]
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by Frank Stajano, Ross Anderson
in Proceedings of 7th International Workshop on Mobile Multimedia Communications (MoMuC 2000), Waseda
http://www.cl.cam.ac.uk./~fms27/papers/grenade.pdf
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Abstract:
Systems accepting mobile code need protection from denial of service attacks staged by the guest program. While protected mode is the most general solution, it is not available to the very low-cost microcontrollers that are common in embedded systems. In this paper we introduce the grenade timer, an evolution of the watchdog timer that can place a hard upper bound on the amount of processor time that guest code may consume. Unlike its predecessor, it is resistant to malicious attacks from the software it controls; but its structure remains extremely simple and maps to very frugal hardware resources.
Citations
| 82 | Piconet: Embedded mobile networking – Bennett, Clarke, et al. - 1997 |
| 23 | On the reliability of electronic payment systems – Anderson, Bezuidenhoudt - 1996 |
| 1 | Colin Parris and Gene Tsudik. “Itinerant Agents for Mobile Computing – Chess, Grosof, et al. - 1995 |
| 1 | Using the High-Speed Micro’s Watchdog Timer”. Application Note 80 – Semiconductor - 1999 |
| 1 | Using the Secure Microcontroller Watchdog Timer – Semiconductor |
