Paper 2020/1008
Differential Power Analysis Attacks on Different Implementations of AES with the ChipWhisperer Nano
Leah Lathrop
Abstract
Side-channel attacks exploit information that is leaked from hardware. The differential power analysis (DPA) attack aims at extracting sensitive information that is processed by the operations in a cryptographic primitive. Power traces are collected and subsequently processed using statistical methods. The ChipWhisperer Nano is a low-cost, open-source device that can be used to implement and study side-channel attacks. This paper describes how the DPA attack with the difference of means method can be used to extract the secret key from both an 8-bit and a 32-bit implementation of AES using the ChipWhisperer Nano. The results show that although it is possible to carry out the attack on both implementations, the attack on the 32-bit implementation requires more traces than the 8-bit implementation.
Note: This paper was written as an assignment for a cryptography lecture. I am publishing it here because I think it might help someone who is getting started on studying side-channel attacks.
Metadata
- Available format(s)
-
PDF
- Category
- Applications
- Publication info
- Preprint. MINOR revision.
- Keywords
- side-channel analysisdifferential power analysisChipWhispererHardware Security
- Contact author(s)
- l lathrop @ oth-aw de
- History
- 2020-08-22: received
- Short URL
- https://ia.cr/2020/1008
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2020/1008,
author = {Leah Lathrop},
title = {Differential Power Analysis Attacks on Different Implementations of {AES} with the {ChipWhisperer} Nano},
howpublished = {Cryptology {ePrint} Archive, Paper 2020/1008},
year = {2020},
url = {https://eprint.iacr.org/2020/1008}
}
