A Systematic Study of Cache Side Channels Across AES Implementations

While the AES algorithm is regarded as secure, many implementations of AES are prone to cache side-channel attacks. The lookup tables traditionally used in AES implementations for storing precomputed results provide speedup for encryption and decryption. How such lookup tables are used is known to a...

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Published inEngineering Secure Software and Systems Vol. 10379; pp. 213 - 230
Main Authors Mantel, Heiko, Weber, Alexandra, Köpf, Boris
Format Book Chapter
LanguageEnglish
Published Switzerland Springer International Publishing AG 2017
Springer International Publishing
SeriesLecture Notes in Computer Science
Subjects
Additional Lookup Table
Cache Set
Cache Side Channel
Cache Size Increases
Timing-based Attacks
Online AccessGet full text
ISBN3319621041
9783319621043
ISSN0302-9743
1611-3349
DOI10.1007/978-3-319-62105-0_14

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Abstract While the AES algorithm is regarded as secure, many implementations of AES are prone to cache side-channel attacks. The lookup tables traditionally used in AES implementations for storing precomputed results provide speedup for encryption and decryption. How such lookup tables are used is known to affect the vulnerability to side channels, but the concrete effects in actual AES implementations are not yet sufficiently well understood. In this article, we analyze and compare multiple off-the-shelf AES implementations wrt. their vulnerability to cache side-channel attacks. By applying quantitative program analysis techniques in a systematic fashion, we shed light on the influence of implementation techniques for AES on cache-side-channel leakage bounds.
AbstractList While the AES algorithm is regarded as secure, many implementations of AES are prone to cache side-channel attacks. The lookup tables traditionally used in AES implementations for storing precomputed results provide speedup for encryption and decryption. How such lookup tables are used is known to affect the vulnerability to side channels, but the concrete effects in actual AES implementations are not yet sufficiently well understood. In this article, we analyze and compare multiple off-the-shelf AES implementations wrt. their vulnerability to cache side-channel attacks. By applying quantitative program analysis techniques in a systematic fashion, we shed light on the influence of implementation techniques for AES on cache-side-channel leakage bounds.
Author Köpf, Boris
Mantel, Heiko
Weber, Alexandra
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Snippet While the AES algorithm is regarded as secure, many implementations of AES are prone to cache side-channel attacks. The lookup tables traditionally used in AES...
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StartPage 213
SubjectTerms Additional Lookup Table
Cache Set
Cache Side Channel
Cache Size Increases
Timing-based Attacks
Title A Systematic Study of Cache Side Channels Across AES Implementations
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