Mixed Techniques to Protect Precharged Busses against Differential Power Analysis Attacks

Author

Alioto, Massimo ; Poli, Massimo ; Rocchi, Santina ; Vignoli, Valerio

Author_Institution

DII, Univ. of Siena, Siena

fYear

2007

fDate

27-30 May 2007

Firstpage

861

Lastpage

864

Abstract

In this paper, techniques to improve the resistance against differential power analysis (DPA) attacks of precharged busses in cryptographic circuits are discussed. In particular, two techniques that were previously introduced by the same authors are properly mixed to further enhance the immunity to DPA attacks. The achieved robustness against DPA attacks is shown to be considerably improved, compared with the case of a separate adoption of each technique. Criteria to manage the security-power-area trade-off are also derived from a statistical analysis of precharged busses. The mixed technique is finally validated by means of both cycle-accurate and circuit simulations on the DES encryption algorithm running on a MIPS32 architecture.

Keywords

circuit simulation; cryptography; DES encryption algorithm; DPA attacks; MIPS32 architecture; circuit simulation; cryptographic circuits; differential power analysis attacks; precharged buses protection; security-power-area trade-off; statistical analysis; Circuit simulation; Consumer electronics; Cryptography; Energy consumption; Information security; Partitioning algorithms; Power measurement; Protection; Robustness; Statistical analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on

Conference_Location

New Orleans, LA

Print_ISBN

1-4244-0920-9

Electronic_ISBN

1-4244-0921-7

Type

conf

DOI

10.1109/ISCAS.2007.378042

Filename

4252771