Time is not enough: Timing Leakage Analysis on Cryptographic Chips via Plaintext-Ciphertext Correlation in Non-timing Channel

Congming Wei; Guangze Hong; An Wang; Jing Wang; Shaofei Sun; Yaoling Ding; Liehuang Zhu; Wenrui Ma

Paper 2024/1168

Time is not enough: Timing Leakage Analysis on Cryptographic Chips via Plaintext-Ciphertext Correlation in Non-timing Channel

Congming Wei, Beijing Institute of Technology

Guangze Hong, Beijing Institute of Technology

An Wang, Beijing Institute of Technology

Jing Wang, Beijing Institute of Technology

Shaofei Sun, Beijing Institute of Technology

Yaoling Ding, Beijing Institute of Technology

Liehuang Zhu, Beijing Institute of Technology

Wenrui Ma, Zhejiang Gongshang University

Abstract

In side-channel testing, the standard timing analysis works when the vendor can provide a measurement to indicate the execution time of cryptographic algorithms. In this paper, we find that there exists timing leakage in power/electromagnetic channels, which is often ignored in traditional timing analysis. Hence a new method of timing analysis is proposed to deal with the case where execution time is not available. Different execution time leads to different execution intervals, affecting the locations of plaintext and ciphertext transmission. Our method detects timing leakage by studying changes in plaintext-ciphertext correlation when traces are aligned forward and backward. Experiments are then carried out on different cryptographic devices. Furthermore, we propose an improved timing analysis framework which gives appropriate methods for different scenarios.

Metadata

Available format(s): PDF
Category: Attacks and cryptanalysis
Publication info: Preprint.
Keywords: Timing analysis Side-channel analysis Timing leakage Plaintext-ciphertext correlation
Contact author(s): cmwei06 @ 163 com
honggz @ bit edu cn
wanganl @ bit edu cn
wangjing_9624 @ 163 com
sfsun @ bit edu cn
dyl19 @ bit edu cn
liehuangz @ bit edu cn
mawenrui @ zjgsu edu cn
History: 2024-07-22: approved; 2024-07-19: received; See all versions
Short URL: https://ia.cr/2024/1168
License: CC BY

BibTeX

@misc{cryptoeprint:2024/1168,
      author = {Congming Wei and Guangze Hong and An Wang and Jing Wang and Shaofei Sun and Yaoling Ding and Liehuang Zhu and Wenrui Ma},
      title = {Time is not enough: Timing Leakage Analysis on Cryptographic Chips via Plaintext-Ciphertext Correlation in Non-timing Channel},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/1168},
      year = {2024},
      url = {https://eprint.iacr.org/2024/1168}
}