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Website fingerprinting attacks, which use statistical analysis on network traffic to compromise user privacy, have been shown to be effective even if the traffic is sent over anonymity-preserving networks such as Tor. The classical attack…

密码学与安全 · 计算机科学 2019-02-22 Anatoly Shusterman , Lachlan Kang , Yarden Haskal , Yosef Meltser , Prateek Mittal , Yossi Oren , Yuval Yarom

Traditional online algorithms encapsulate decision making under uncertainty, and give ways to hedge against all possible future events, while guaranteeing a nearly optimal solution as compared to an offline optimum. On the other hand,…

数据结构与算法 · 计算机科学 2020-08-24 Thodoris Lykouris , Sergei Vassilvitskii

In the last 10 years, cache attacks on Intel x86 CPUs have gained increasing attention among the scientific community and powerful techniques to exploit cache side channels have been developed. However, modern smartphones use one or more…

密码学与安全 · 计算机科学 2016-06-21 Moritz Lipp , Daniel Gruss , Raphael Spreitzer , Clémentine Maurice , Stefan Mangard

Modern multi-core processors share cache resources for maximum cache utilization and performance gains. However, this leaves the cache vulnerable to side-channel attacks, where timing differences in shared cache behavior are exploited to…

密码学与安全 · 计算机科学 2019-09-23 Ghada Dessouky , Tommaso Frassetto , Ahmad-Reza Sadeghi

Randomized ensemble classifiers (RECs), where one classifier is randomly selected during inference, have emerged as an attractive alternative to traditional ensembling methods for realizing adversarially robust classifiers with limited…

机器学习 · 计算机科学 2023-05-30 Hassan Dbouk , Naresh R. Shanbhag

Many micro-architectural attacks rely on the capability of an attacker to efficiently find small eviction sets: groups of virtual addresses that map to the same cache set. This capability has become a decisive primitive for cache…

密码学与安全 · 计算机科学 2018-12-11 Pepe Vila , Boris Köpf , José Francisco Morales

Concerns regarding the scalability of the inter-domain routing have encouraged researchers to start elaborating a more robust Internet architecture. While consensus on the exact form of the solution is yet to be found, the need for a…

网络与互联网体系结构 · 计算机科学 2013-12-09 Florin Coras , Jordi Domingo-Pascual , Darrel Lewis , Albert Cabellos-Aparicio

Side-channel attacks have become prominent attack surfaces in cyberspace. Attackers use the side information generated by the system while performing a task. Among the various side-channel attacks, cache side-channel attacks are leading as…

密码学与安全 · 计算机科学 2023-12-19 Ankit Pulkit , Smita Naval , Vijay Laxmi

We present a new approach for random sampling of contingency tables of any size and constraints based on a recently introduced $\textit{probabilistic divide-and-conquer}$ technique. A simple exact sampling algorithm is presented for…

统计理论 · 数学 2016-03-01 Stephen DeSalvo , James Y. Zhao

This paper presents a new hybrid cache replacement algorithm that combines random allocation with a modified V-Way cache implementation. Our RAC adapts to complex cache access patterns and optimizes cache usage by improving the utilization…

硬件体系结构 · 计算机科学 2025-02-05 Vrushank Ahire , Pranav Menon , Aniruddh Muley , Abhinandan S. Prasad

Random Access Channel (RACH) has been identified as one of the major bottlenecks for accommodating massive number of machine-to-machine (M2M) users in LTE networks, especially for the case of burst arrival of connection requests. As a…

信息论 · 计算机科学 2018-05-29 Mikhail Vilgelm , Sebastian Schiessl , Hussein Al-Zubaidy , Wolfgang Kellerer , James Gross

Effective caching is crucial for the performance of modern-day computing systems. A key optimization problem arising in caching -- which item to evict to make room for a new item -- cannot be optimally solved without knowing the future.…

机器学习 · 计算机科学 2021-06-29 Jakub Chłędowski , Adam Polak , Bartosz Szabucki , Konrad Zolna

We consider the allocation of $m$ balls (jobs) into $n$ bins (servers). In the standard Two-Choice process, at each step $t=1,2,\ldots,m$ we first sample two bins uniformly at random and place a ball in the least loaded bin. It is…

离散数学 · 计算机科学 2023-01-25 Dimitrios Los , Thomas Sauerwald , John Sylvester

Recent research has demonstrated that Intel's SGX is vulnerable to software-based side-channel attacks. In a common attack, the adversary monitors CPU caches to infer secret-dependent data accesses patterns. Known defenses have major…

The rapid growth of mobile social networks (MSNs) has significantly increased the demand for low-latency and reliable content delivery, motivating the deployment of edge caching systems. In practice, multiple content providers (CPs) compete…

计算机科学与博弈论 · 计算机科学 2026-05-06 Hamta Sedghani , Zahra Seyedi , Mauro Passacantando , Danilo Ardagna

While the cost of computation is an easy to understand local property, the cost of data movement on cached architectures depends on global state, does not compose, and is hard to predict. As a result, programmers often fail to consider the…

性能 · 计算机科学 2020-01-07 Tobias Gysi , Tobias Grosser , Laurin Brandner , Torsten Hoefler

An innovative strategy to enhance the security of symmetric substitution ciphers is presented, through the implementation of a randomized key matrix suitable for various file formats, including but not limited to binary and text files.…

密码学与安全 · 计算机科学 2023-12-01 Shubham Gandhi , Om Khare , Mihika Dravid , Mihika Sanghvi , Sunil Mane , Aadesh Gajaralwar , Saloni Gandhi

Many cache designs have been proposed to guard against contention-based side-channel attacks. One well-known type of cache is the randomized remapping cache. Many randomized remapping caches provide fixed or over protection, which leads to…

密码学与安全 · 计算机科学 2024-05-31 Xiao Liu , Mark Zwolinski , Basel Halak

This paper develops a stochastic geometry-based approach for the modeling, analysis, and optimization of wireless cloud caching networks comprised of multiple-antenna radio units (RUs) inside clouds. We consider the Matern cluster process…

信息论 · 计算机科学 2019-05-07 Seyed Mohammad Azimi-Abarghouyi , Masoumeh Nasiri-Kenari , Merouane Debbah

Machine learning relies on randomness as a fundamental component in various steps such as data sampling, data augmentation, weight initialization, and optimization. Most machine learning frameworks use pseudorandom number generators as the…

密码学与安全 · 计算机科学 2026-02-11 Kotekar Annapoorna Prabhu , Andrew Gan , Zahra Ghodsi