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Recovering Memory Access Sequence with Differential Flush+Reload Attack

  • Zhiwei Yuan
  • Yang Li
  • Kazuo Sakiyama
  • Takeshi Sugawara
  • Jian Wang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11125)

Abstract

Side-channel attacks are effective attacks against modern cryptographic schemes, which exploit the leaking information besides input and output to the algorithm. As one of the cache-based side-channel attacks, Flush+Reload features high resolution, low noise, and virtual machine compatibility. However, a state-of-the-art Flush+Reload attack only reveals whether the memory address is accessed or not. This paper presents differential Flush+Reload attack that can recover the access sequence of memory addresses, which could lead to new vulnerabilities. The idea is to analyze statistical difference among multiple Flush+Reload results. Specifically, we add controlled delay between the start of victim calculation and the memory flush. Multiple Flush+Reload results with different delays are measured to determine the memory access sequence. Under this concept, we demonstrate the details of a successful recovery of T-table access sequences for an AES implementation from MatrixSSL version 3.9.3 on an Intel CPU.

Keywords

Side-channel Cache attack Differential Flush+Reload Access sequence 

Notes

Acknowledgement

This work was supported by National Natural Science Foundation of China 61602239, Jiangsu Province Natural Science Foundation BK20160808 and JSPS KAKENHI Grant Number JP18H05289.

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Zhiwei Yuan
    • 1
  • Yang Li
    • 2
  • Kazuo Sakiyama
    • 2
  • Takeshi Sugawara
    • 2
  • Jian Wang
    • 1
  1. 1.Nanjing University of Aeronautics and AstronauticsNanjingChina
  2. 2.The University of Electro-CommunicationsTokyoJapan

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