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Per Row Activation Counting (PRAC) has emerged as a robust framework for mitigating RowHammer (RH) vulnerabilities in modern DRAM systems. However, we uncover a critical vulnerability: a timing channel introduced by the Alert Back-Off (ABO)…

Cryptography and Security · Computer Science 2025-05-20 Jeonghyun Woo , Joyce Qu , Gururaj Saileshwar , Prashant J. Nair

Speculation is key to achieving high CPU performance, yet it enables risks like Spectre attacks which remain a significant challenge to mitigate without incurring substantial performance overheads. These attacks typically unfold in three…

Cryptography and Security · Computer Science 2025-05-09 Hossam ElAtali , N. Asokan

In this paper, we propose to exploit the limited cache packets as side information to cancel incoming interference at the receiver side. We consider a stochastic network where the random locations of base stations and users are modeled…

Information Theory · Computer Science 2016-11-15 Chenchen Yang , Yao Yao , Bin Xia , Kaibin Huang , Weiliang Xie , Yong Zhao

This paper addresses the problem of exponentially increasing sub-packetization with the number of users in a centralized coded caching system by introducing a new coded caching scheme inspired by the symmetric neighboring consecutive side…

Information Theory · Computer Science 2020-09-24 Anjana A. Mahesh , B. Sundar Rajan

This work presents a new tool to verify the correctness of cryptographic implementations with respect to cache attacks. Our methodology discovers vulnerabilities that are hard to find with other techniques, observed as exploitable leakage.…

Cryptography and Security · Computer Science 2017-09-07 Gorka Irazoqui , Kai Cong , Xiaofei Guo , Hareesh Khattri , Arun Kanuparthi , Thomas Eisenbarth , Berk Sunar

Advanced Encryption Standard (AES) is a symmetric key encryption algorithm which is extensively used in secure electronic data transmission. When introduced, although it was tested and declared as secure, in 2005, a researcher named…

Cryptography and Security · Computer Science 2014-03-07 U. Herath , J. Alawatugoda , R. G. Ragel

Real-time systems have recently been shown to be vulnerable to timing inference attacks, mainly due to their predictable behavioral patterns. Existing solutions such as schedule randomization lack the ability to protect against such…

Cryptography and Security · Computer Science 2021-04-13 Jiyang Chen , Tomasz Kloda , Ayoosh Bansal , Rohan Tabish , Chien-Ying Chen , Bo Liu , Sibin Mohan , Marco Caccamo , Lui Sha

Large gains in the rate of cache-aided broadcast communication are obtained using coded caching, but to obtain this most existing centralized coded caching schemes require that the files at the server be divisible into a large number of…

Information Theory · Computer Science 2021-11-30 Hari Hara Suthan Chittoor , Prasad Krishnan , K V Sushena Sree , Bhavana MVN

Last-Level Cache (LLC) represents the bulk of a modern CPU processor's transistor budget and is essential for application performance as LLC enables fast access to data in contrast to much slower main memory. However, applications with…

Hardware Architecture · Computer Science 2020-06-16 Priyank Faldu

This paper addresses the security allocation problem in a networked control system under stealthy injection attacks. The networked system is comprised of interconnected subsystems which are represented by nodes in a digraph. An adversary…

Systems and Control · Electrical Eng. & Systems 2025-12-03 Anh Tung Nguyen , Sribalaji C. Anand , André M. H. Teixeira

Read-only caches are widely used in cloud infrastructures to reduce access latency and load on backend databases. Operators view coherent caches as impractical at genuinely large scale and many client-facing caches are updated in an…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-15 Ittay Eyal , Ken Birman , Robbert van Renesse

Recently, self-supervised learning (SSL) was shown to be vulnerable to patch-based data poisoning backdoor attacks. It was shown that an adversary can poison a small part of the unlabeled data so that when a victim trains an SSL model on…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Ajinkya Tejankar , Maziar Sanjabi , Qifan Wang , Sinong Wang , Hamed Firooz , Hamed Pirsiavash , Liang Tan

This paper addresses the challenges of throughput optimization in wireless cache-aided cooperative networks. We propose an opportunistic cooperative probing and scheduling strategy for efficient content delivery. The strategy involves the…

Signal Processing · Electrical Eng. & Systems 2024-09-04 Zhou Zhang , Saman Atapattu , Yizhu Wang , Marco Di Renzo

Caches have been used to construct various types of covert and side channels to leak information. Most existing cache channels exploit the timing difference between cache hits and cache misses. However, we introduce a new and broader…

Cryptography and Security · Computer Science 2022-04-27 Yujie Cui , Chun Yang , Xu Cheng

Large amounts of incremental learning algorithms have been proposed to alleviate the catastrophic forgetting issue arises while dealing with sequential data on a time series. However, the adversarial robustness of incremental learners has…

Cryptography and Security · Computer Science 2023-05-31 Yiqi Zhong , Xianming Liu , Deming Zhai , Junjun Jiang , Xiangyang Ji

Operating Systems enforce logical isolation using abstractions such as processes, containers, and isolation technologies to protect a system from malicious or buggy code. In this paper, we show new types of side channels through the file…

Cryptography and Security · Computer Science 2025-04-29 Cheng Gu , Yicheng Zhang , Nael Abu-Ghazaleh

Cache side channel attacks are a sophisticated and persistent threat that exploit vulnerabilities in modern processors to extract sensitive information. These attacks leverage weaknesses in shared computational resources, particularly the…

Cryptography and Security · Computer Science 2025-01-29 Tejal Joshi , Aarya Kawalay , Anvi Jamkhande , Amit Joshi

The transient-execution attack Meltdown leaks sensitive information by transiently accessing inaccessible data during out-of-order execution. Although Meltdown is fixed in hardware for recent CPU generations, most currently-deployed CPUs…

Cryptography and Security · Computer Science 2023-10-09 Daniel Weber , Fabian Thomas , Lukas Gerlach , Ruiyi Zhang , Michael Schwarz

With lowering thresholds, transparently defending against Rowhammer within DRAM is challenging due to the lack of time to perform mitigation. Commercially deployed in-DRAM defenses like TRR that steal time from normal refreshes~(REF) to…

Cryptography and Security · Computer Science 2025-01-14 Hritvik Taneja , Moinuddin Qureshi

Large language models have revolutionized natural language processing, yet their deployment remains hampered by the substantial memory and runtime overhead of the transformer's Key-Value cache. To mitigate this, recent methods employ a…

Computation and Language · Computer Science 2025-10-16 Yuan Feng , Haoyu Guo , JunLin Lv , S. Kevin Zhou , Xike Xie