3 papers
cs.CR2026
Partitioned Tags, Shared Data: Reconciling Strict Cache Isolation with Write-Shared Coherence
Kartik Ramkrishnan, Stephen McCamant, Antonia Zhai +1
Cache partitioning is among the strongest structural defenses against eviction-based cache side channels, yet a decade-old design issue has blocked its widespread deployment in sec…
cs.CR2026
Supporting Secured Integration of Microarchitectural Defenses
Kartik Ramkrishnan, Stephen McCamant, Antonia Zhai +1
There has been a plethora of microarchitectural-level attacks leading to many proposed countermeasures. This has created an unexpected and unaddressed security issue where naive in…
cs.CR2025
Shield Bash: Abusing Defensive Coherence State Retrieval to Break Timing Obfuscation
Kartik Ramkrishnan, Antonia Zhai, Stephen McCamant +1
Microarchitectural attacks are a significant concern, leading to many hardware-based defense proposals. However, different defenses target different classes of attacks, and their i…