Conference Publication Details
Mandatory Fields
Baldwin, B., Popovici, E.M., Tunstall, M. and Marnane, W.P.
IET Irish Signals & System Conference (ISSC 2008)
Fault Injection Platform for Block Ciphers
2008
June
Published
1
()
Optional Fields
Feistal, Implementation Attacks, Differential Fault Analysis, DES
10
15
Galway, Ireland
18-JUN-08
19-JUN-08
Block ciphers are typically resistant to direct attacks, such as an exhaustive key search or cryptanalysis, all of which require too many resources to achieve an efficient attack. Many block ciphers are examined for their resistance to less direct attacks that target a given implementation. Of these attacks, fault attacks are amongst the most effective at retrieving information on secret key, and require specific countermeasures to be included in an implementation. In this paper we describe a simple platform for the study of fault injection and analysis in the context of fault attacks block ciphers based on a Feistel structure (e.g. DES). We show that an attacker who can successfully inject faults into a block cipher can reduce the complexity of an attack to derive the secret key. We also present a novel version of the attack than can be applied to Triple-DES by independently injecting faults in the second and third instantiations of DES involved in a Triple-DES computation.
10.1049/cp:20080631
Grant Details
Science Foundation Ireland
06/MI/006