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Information Security Theory and Practice. Security and Privacy of Mobile Devices in Wireless Communication

Volume 6633 of the series Lecture Notes in Computer Science pp 160-174

An Evaluation of Hash Functions on a Power Analysis Resistant Processor Architecture

  • Simon HoerderAffiliated withDepartment of Computer Science, University of Bristol
  • , Marcin WójcikAffiliated withDepartment of Computer Science, University of Bristol
  • , Stefan TillichAffiliated withDepartment of Computer Science, University of Bristol
  • , Daniel PageAffiliated withDepartment of Computer Science, University of Bristol

Abstract

Cryptographic hash functions are an omnipresent component in security-critical software and devices; they support digital signature and data authenticity schemes, mechanisms for key derivation, pseudo-random number generation and so on. A criterion for candidate hash functions in the SHA-3 contest is resistance against side-channel analysis which is a major concern especially for mobile devices. This paper explores the implementation of said candidates on a variant of the Power-Trust platform; our results highlight a flexible solution to power analysis attacks, implying only a modest performance overhead.