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Defending Against Cache Based Side-Channel Attacks

D. Page, Defending Against Cache Based Side-Channel Attacks. Information Security Technical Report, 8(1). ISSN 1363-4127, pp. 30–44. April 2003. No electronic version available.


Cache based side-channel analysis is a new technique that uses the application specific behaviour of cache memory to leak secret information about a running algorithm to the attacker. Two complementary methods have been proposed which describe how such attacks could be mounted but there has been little work on how one might defend devices against the resulting security breaches. This paper surveys a number of hardware and software based approaches to defending against such methods of attack and evaluates each using simulated results.

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