Paper 2009/161 Original: eprint.iacr.org/2009/161 ↗
Built-in Determined Sub-key Correlation Power Analysis
Abstract
Correlation power analysis (CPA) is a well-known attack against cryptographic modules with which an attacker evaluates the correlation between the power consumption and the sensitive data candidate calculated from a guessed sub-key and known data (plaintext or ciphertext). This paper enhances CPA to propose a new general power analysis, \textit{build-in determined sub-key CPA} (BS-CPA), that finds a new sub-key by using the previously determined sub-keys recursively to compute the sensitive data candidate and to increase the signal-to-noise ratio in its analysis. BS-CPA is powerful and effective when the multiple sbox outputs (or corresponding data) are processed simultaneously as in the hardware implementation. We apply BS-CPA to the power consumption traces provided at the DPA contest and succeed in finding DES key less than the original CPA does.
Metadata
- Available format(s)
PDF- Category
- Implementation
- Publication info
- Preprint.
- History
- 2009-08-03: last updated
- 2009-04-07: published
- Short URL
- https://ia.cr/2009/161
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2009/161,
author = {Yuichi Komano and Hideo Shimizu and Shinichi Kawamura},
title = {Built-in Determined Sub-key Correlation Power Analysis},
howpublished = {Cryptology {ePrint} Archive, Paper 2009/161},
year = {2009},
url = {https://eprint.iacr.org/2009/161}
}