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To improve efficiency, nearly all parallel processing units (CPUs and GPUs) implement relaxed memory models in which memory operations may be re-ordered, i.e., executed out-of-order. Prior testing work in this area found that memory…

密码学与安全 · 计算机科学 2026-01-14 Sean Siddens , Sanya Srivastava , Reese Levine , Josiah Dykstra , Tyler Sorensen

Attacks like Spectre abuse speculative execution, one of the key performance optimizations of modern CPUs. Recently, several testing tools have emerged to automatically detect speculative leaks in commercial (black-box) CPUs. However, the…

密码学与安全 · 计算机科学 2023-01-19 Oleksii Oleksenko , Marco Guarnieri , Boris Köpf , Mark Silberstein

In this work, we adopt channel inversion power control (CIPC) to achieve covert communications aided by a full-duplex receiver. Specifically, the transmitter varies the power and phase of transmitted signals as per the channel to the…

信息论 · 计算机科学 2018-12-21 Jinsong Hu , Shihao Yan , Xiangyun Zhou , Feng Shu , Jun Li

Shared-memory system-on-chips (SM-SoC) are ubiquitously employed by a wide-range of mobile computing platforms, including edge/IoT devices, autonomous systems and smartphones. In SM-SoCs, system-wide shared physical memory enables a…

密码学与安全 · 计算机科学 2025-02-11 Ismet Dagli , James Crea , Soner Seckiner , Yuanchao Xu , Selçuk Köse , Mehmet E. Belviranli

User-generated data is crucial to predictive modeling in many applications. With a web/mobile/wearable interface, a data owner can continuously record data generated by distributed users and build various predictive models from the data to…

密码学与安全 · 计算机科学 2019-05-02 Sagar Sharma , Keke Chen

Coherent information quantifies the transmittable quantum information through a channel and is directly linked to the channel's quantum capacity. In a monitored quantum circuit, regarded as a quantum channel, extensive and positive coherent…

量子物理 · 物理学 2025-12-11 Dongheng Qian , Jing Wang

The arm race between hardware security engineers and side-channel researchers has become more competitive with more sophisticated attacks and defenses in the last decade. While modern hardware features improve the system performance…

密码学与安全 · 计算机科学 2022-08-10 Debopriya Roy Dipta , Berk Gulmezoglu

In this paper, we study the frequency-selective broadcast channel with confidential messages (BCC) in which the transmitter sends a confidential message to receiver 1 and a common message to receivers 1 and 2. In the case of a block…

信息论 · 计算机科学 2009-06-18 Mari Kobayashi , Merouane Debbah , Shlomo Shamai

In this contribution, we investigate the idea of using cognitive radio to reuse locally unused spectrum to increase the total system capacity. We consider a multiband/wideband system in which the primary and cognitive users wish to…

信息论 · 计算机科学 2015-03-13 Majed Haddad , Aawatif Menouni Hayar , Merouane Debbah

This paper proposes a turbo equalizer for intersymbol interference channels (ISI) that uses coarsely quantized messages across all receiver components. Lookup tables (LUTs) carry out compression operations designed with the information…

信息论 · 计算机科学 2024-09-16 Philipp Mohr , Jasper Brüggmann , Gerhard Bauch

Each time that an intrusion detection system raises an alert it must make some attempt to communicate the information to an operator. This communication channel can easily become the target of a denial of service attack because, like all…

密码学与安全 · 计算机科学 2013-05-31 Gianni Tedesco , Uwe Aickelin

With the rapidly growing interest in quantum computing also grows the importance of securing these quantum computers from various physical attacks. Constantly increasing qubit counts and improvements to the fidelity of the quantum computers…

密码学与安全 · 计算机科学 2023-05-10 Chuanqi Xu , Ferhat Erata , Jakub Szefer

Frequency tunable qubit plays a significant role for scalable superconducting quantum processors. The state-of-the-art room-temperature electronics for tuning qubit frequency suffers from unscalable limit, such as heating problem, linear…

A broadcast channel (BC) where the decoders cooperate via a one-sided link is considered. One common and two private messages are transmitted and the private message to the cooperative user should be kept secret from the cooperation-aided…

信息论 · 计算机科学 2019-05-29 Ziv Goldfeld , Gerhard Kramer , Haim H. Permuter , Paul Cuff

We propose and analyse a model predictive control (MPC) strategy tailored for networks of underwater agents tasked with maintaining formation while following a shared path and using acoustic communication channels. The strategy accommodates…

最优化与控制 · 数学 2024-10-22 Emil Wengle , Damiano Varagnolo

Coded caching schemes on broadcast networks with user caches help to offload traffic from peak times to off-peak times by prefetching information from the server to the users during off-peak times and thus serving the users more efficiently…

信息论 · 计算机科学 2017-08-29 Hari Hara Suthan C , Ishani Chugh , Prasad Krishnan

The use of trusted hardware has become a promising solution to enable privacy-preserving machine learning. In particular, users can upload their private data and models to a hardware-enforced trusted execution environment (e.g. an enclave…

硬件体系结构 · 计算机科学 2020-11-13 Peichen Xie , Xuanle Ren , Guangyu Sun

Accurate modeling of noise in realistic quantum processors is critical for constructing fault-tolerant quantum computers. While a full simulation of actual noisy quantum circuits provides information about correlated noise among all qubits…

量子物理 · 物理学 2025-04-10 F. Setiawan , Alexander V. Gramolin , Elisha S. Matekole , Hari Krovi , Jacob M. Taylor

This paper establishes several converse bounds on the private transmission capabilities of a quantum channel. The main conceptual development builds firmly on the notion of a private state, which is a powerful, uniquely quantum method for…

量子物理 · 物理学 2017-02-21 Mark M. Wilde , Marco Tomamichel , Mario Berta

In this paper we consider a wiretap channel with a secret key buffer. We use the coding scheme of [1] to enhance the secrecy rate to the capacity of the main channel, while storing each securely transmitted message in the secret key buffer.…

信息论 · 计算机科学 2016-07-06 Shahid Mehraj Shah , Vinod Sharma