EH2011 - 21

Easterhegg 2011
the ccc family event

Benjamin Vetter
Tag Ostersamstag - 2011-04-23
Raum Aula
Beginn 17:00
Dauer 00:30
ID 4367
Veranstaltungstyp Vortrag
Track Making
Sprache der Veranstaltung deutsch

Code Attestation with Compressed Instruction Code

Available purely software based code attestation protocols have recently been shown to be cheatable. In this work we propose to upload compressed instruction code to make the code attestation protocol robust against a so called com- presssion attack. The described secure code attestation pro- tocol makes use of recently proposed micro-controller archi- tectures for reading out compressed instruction code. We point out that the proposed concept only makes sense if the provided cost/beneļ¬t ratio for the aforementioned micro- controller is higher than an alternative hardware based so- lution requiring a tamper-resistant hardware module.

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