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Abstract
In this paper, we propose SassCache, a secure skewed associative cache with keyed index mapping. For this purpose, we design a new two-layered, low-latency cryptographic construction with configurable output coverage based on state-of-the-art cryptographic primitives. Based on this construction, SassCache is the first secure randomized cache with secure spacing. Victim cache lines automatically hide in locations the attacker cannot reach after less than 1 access on average. Consequently, attackers cannot evict the cache line, no matter which and how many memory accesses they perform. Our security analysis shows that all existing techniques for eviction set construction fail, and state-of-the-art attacks only apply to 1 in 3 million addresses, where SassCache is still as secure as ScatterCache. Compared to standard caches, SassCache has a single-threaded performance penalty of 1.75 % on the last-level cache hit rate in the SPEC2017 benchmark, and an average decrease of 11.7 p.p. in hit rate for MiBench, GAP and Scimark for our high-security settings.
Originalsprache | englisch |
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Titel | 2023 IEEE Symposium on Security and Privacy (SP) |
Seiten | 2273-2287 |
Seitenumfang | 15 |
ISBN (elektronisch) | 978-1-6654-9336-9 |
DOIs | |
Publikationsstatus | Veröffentlicht - Juli 2023 |
Veranstaltung | 44th IEEE Symposium on Security and Privacy: S&P 2023 - San Francisco, USA / Vereinigte Staaten Dauer: 22 Mai 2023 → 25 Mai 2023 https://www.ieee-security.org/TC/SP2023/ |
Kurs
Kurs | 44th IEEE Symposium on Security and Privacy |
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Kurztitel | S&P 2023 |
Land/Gebiet | USA / Vereinigte Staaten |
Ort | San Francisco |
Zeitraum | 22/05/23 → 25/05/23 |
Internetadresse |
ASJC Scopus subject areas
- Software
- Sicherheit, Risiko, Zuverlässigkeit und Qualität
- Computernetzwerke und -kommunikation
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Scatter and Split Securely: Defeating Cache Contention and Occupancy Attacks
Giner, L. (Redner/in)
23 Mai 2023Aktivität: Vortrag oder Präsentation › Vortrag bei Konferenz oder Fachtagung › Science to science