Cryptology ePrint Archive: Report 2020/966

EM-Side-Channel Resistant Symmetric-Key Authentication Mechanism for Small Devices

Rick Boivie and Charanjit S. Jutla and Daniel Friedman and Ghavam Shahidi

Abstract: We provide a novel electro-magnetic (EM) side-channel resistant symmetric-key authentication mechanism for small devices that uses a Benes network to permute the on-board authentication-key before computing a MAC of a challenge with the key. The permutation itself is derived from the challenge using a hash function acting as a random oracle. The solution has interesting applications such as forgery detection of currency bills.

Category / Keywords: secret-key cryptography / side-channel EM authentication Benes MAC butterfly

Date: received 7 Aug 2020, last revised 31 Aug 2020

Contact author: csjutla at us ibm com

Available format(s): PDF | BibTeX Citation

Note: Typos in the Benes network description were fixed.

Version: 20200901:005242 (All versions of this report)

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