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This paper presents new attacks against TKIP within IEEE 802.11 based networks. Using the known Beck-Tews attack, we define schemas to con- tinuously generate new keystreams, which allow more and longer arbitrary packets to be injected into…

Cryptography and Security · Computer Science 2014-10-24 Martin Beck

This paper presents a spatial encryption technique for secured transmission of data in networks. The algorithm is designed to break the ciphered data packets into multiple data which are to be packaged into a spatial template. A secure and…

Cryptography and Security · Computer Science 2010-04-05 Sk. Sarif Hassan , Pabitra Pal Choudhury , Sugata Sanyal

We propose SANSCrypt, a novel sequential logic encryption scheme to protect integrated circuits against reverse engineering. Previous sequential encryption methods focus on modifying the circuit state machine such that the correct…

Cryptography and Security · Computer Science 2021-02-12 Yinghua Hu , Kaixin Yang , Shahin Nazarian , Pierluigi Nuzzo

An ad hoc network is a self-organizing network with help of Access Point (AP) of wireless links connecting nodes to another. The nodes can communicate without infrastructure network. They form an random topology (BSS/ESS), where the nodes…

Cryptography and Security · Computer Science 2013-07-17 K. Karnavel , A. Baladhandayutham

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

Software-defined networking (SDN) eases network management by centralizing the control plane and separating it from the data plane. The separation of planes in SDN, however, introduces new vulnerabilities in SDN networks since the…

Cryptography and Security · Computer Science 2015-12-22 Heng Cui , Ghassan O. Karame , Felix Klaedtke , Roberto Bifulco

We consider the problem of \emph{secretive coded caching} in a shared cache setup where the number of users accessing a particular \emph{helper cache} is more than one, and every user can access exactly one helper cache. In secretive coded…

Information Theory · Computer Science 2021-07-02 Shreya Shrestha Meel , B. Sundar Rajan

In key agreement protocols, the user will send a request to the server and the server will respond to that message. After two-way authentication, a secure session key will be created between them. They use the session key to create a secure…

Cryptography and Security · Computer Science 2022-06-28 Mahdi Nikooghadam , Hamid Reza Shahriari

Semantic communications seeks to transfer information from a source while conveying a desired meaning to its destination. We model the transmitter-receiver functionalities as an autoencoder followed by a task classifier that evaluates the…

Cryptography and Security · Computer Science 2022-12-21 Yalin E. Sagduyu , Tugba Erpek , Sennur Ulukus , Aylin Yener

In this paper, we consider communication on a two-hop channel, in which a source wants to send information reliably and securely to the destination via a relay. We consider both the untrusted relay case and the external eavesdropper case.…

Information Theory · Computer Science 2015-09-15 Zhijie Ren , Jasper Goseling , Jos H. Weber , Michael Gastpar

We analyzed the generation of protocol header fields in the implementations of multiple TCP/IP network stacks and found new ways to leak information about global protocol states. We then demonstrated new covert channels by remotely…

Cryptography and Security · Computer Science 2022-09-02 Amit Klein

In this paper, we investigate multi-message authentication to combat adversaries with infinite computational capacity. An authentication framework over a wiretap channel $(W_1,W_2)$ is proposed to achieve information-theoretic security with…

Cryptography and Security · Computer Science 2018-08-19 Dajiang Chen , Ning Zhang , Nan Cheng , Kuan Zhang , Kan Yang , Zhiguang Qin , Xuemin Shen

Transient execution attacks utilize micro-architectural covert channels to leak secrets that should not have been accessible during logical program execution. Commonly used micro-architectural covert channels are those that leave lasting…

Cryptography and Security · Computer Science 2020-06-24 Jacob Fustos , Michael Bechtel , Heechul Yun

The emerging need for mobile ad hoc networks and secured data transmission phase is of crucial importance depending upon the environments like military. In this paper, a new way to improve the reliability of message transmission is…

Networking and Internet Architecture · Computer Science 2011-04-26 V. Anitha , Dr. J. Akilandeswari

Multi-process concurrency is effective in improving program efficiency and maximizing CPU utilization. The correct execution of concurrency is ensured by the mutual exclusion and synchronization mechanism (MESM) that manages the shared…

Hardware Architecture · Computer Science 2022-11-23 Chaoqun Shen , Jiliang Zhang , Gang Qu

Side-channel attacks have become a severe threat to the confidentiality of computer applications and systems. One popular type of such attacks is the microarchitectural attack, where the adversary exploits the hardware features to break the…

Cryptography and Security · Computer Science 2021-03-29 Xiaoxuan Lou , Tianwei Zhang , Jun Jiang , Yinqian Zhang

The adoption of security protocols such as Transport Layer Security (TLS) has significantly improved the state of traffic encryption and integrity protection on the Internet. Despite rigorous analysis, vulnerabilities continue to emerge,…

Cryptography and Security · Computer Science 2025-01-30 Mariam Moustafa , Mohit Sethi , Tuomas Aura

Secure Multi-Party Computation (SMPC) allows a set of parties to securely compute a functionality in a distributed fashion without the need for any trusted external party. Usually, it is assumed that the parties know each other and have…

Cryptography and Security · Computer Science 2023-01-20 Malte Breuer , Ulrike Meyer , Susanne Wetzel

We show that a family of quantum authentication protocols introduced in [Barnum et al., FOCS 2002] can be used to construct a secure quantum channel and additionally recycle all of the secret key if the message is successfully…

Quantum Physics · Physics 2017-04-24 Christopher Portmann

Wireless mesh networks (WMNs) have emerged as a promising concept to meet the challenges in next-generation wireless networks such as providing flexible, adaptive, and reconfigurable architecture while offering cost-effective solutions to…

Cryptography and Security · Computer Science 2012-09-11 Jaydip Sen