Equivalent current source of side-channel signal for countermeasure design with analog circuit simulator

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Side-channel attack is a cryptanalytic attack based on information gained from the physical implementation of a cryptographic IC. The simultaneous switching noise (SSN) current is generated as logic gates in cryptographic IC switch simultaneously in encryption processes. SSN current is a cause of electromagnetic interference (EMI). In this study, linear equivalent circuit modeling was examined for the sake of a developing method to evaluate cryptographic systems before fabrication. A linear equivalent circuit model of a cryptographic FPGA, in which an AES algorithm had been implemented, was determined from experimental measurements. The model was implemented into a commercial analog circuit simulator, and the SSN current was estimated under three configurations among which a decoupling circuit, used as a countermeasure, was changed. Estimated current traces were analyzed statistically by using the correlation power analysis (CPA) method to obtain correlation values, a major index security against side-channel attacks. Variation of the correlation values with a decoupling configuration agreed with the corresponding experimental results also obtained in this study. This means that the security of cryptographic devices against side-channel attacks based on analysis of the SSN current can be estimated by using the equivalent circuit model before fabrication.

Original languageEnglish
Title of host publicationEMC 2012 - 2012 IEEE International Symposium on Electromagnetic Compatibility, Final Program
Pages806-811
Number of pages6
DOIs
Publication statusPublished - Dec 12 2012
Event2012 IEEE International Symposium on Electromagnetic Compatibility, EMC 2012 - Pittsburgh, PA, United States
Duration: Aug 5 2012Aug 10 2012

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
ISSN (Print)1077-4076
ISSN (Electronic)2158-1118

Other

Other2012 IEEE International Symposium on Electromagnetic Compatibility, EMC 2012
CountryUnited States
CityPittsburgh, PA
Period8/5/128/10/12

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Amano, T., Iokibe, K., & Toyota, Y. (2012). Equivalent current source of side-channel signal for countermeasure design with analog circuit simulator. In EMC 2012 - 2012 IEEE International Symposium on Electromagnetic Compatibility, Final Program (pp. 806-811). [6351661] (IEEE International Symposium on Electromagnetic Compatibility). https://doi.org/10.1109/ISEMC.2012.6351661