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The heterogeneity of the blockchain landscape has motivated the design of blockchain protocols tailored to specific blockchains and applications that, hence, require custom security proofs. We observe that many blockchain protocols share…

Cryptography and Security · Computer Science 2025-01-30 Stephan Dübler , Federico Badaloni , Pedro Moreno-Sanchez , Clara Schneidewind

Learned Index Structures (LIS) view a sorted index as a model that learns the data distribution, takes a data element key as input, and outputs the predicted position of the key. The original LIS can only handle lookup operations with no…

Databases · Computer Science 2024-03-20 Rui Yang , Evgenios M. Kornaropoulos , Yue Cheng

The data stream model has been defined for new classes of applications involving massive data being generated at a fast pace. Web click stream analysis and detection of network intrusions are two examples. Cluster analysis on data streams…

Databases · Computer Science 2007-05-23 Zengyou He , Xiaofei Xu , Shengchun Deng , Joshua Zhexue Huang

The last level cache is vulnerable to timing based side channel attacks because it is shared by the attacker and the victim processes even if they are located on different cores. These timing attacks evict the victim cache lines using small…

Cryptography and Security · Computer Science 2019-09-30 Kartik Ramkrishnan , Antonia Zhai , Stephen McCamant , Pen Chung Yew

Data stream processing systems (DSPSs) enable users to express and run stream applications to continuously process data streams. To achieve real-time data analytics, recent researches keep focusing on optimizing the system latency and…

Databases · Computer Science 2024-06-18 Shuhao Zhang , Feng Zhang , Yingjun Wu , Bingsheng He , Paul Johns

The previous work showed that the Y00 protocol could stay secure with the eavesdropper's guessing probability on the secret keys being strictly less than one under an unlimitedly long known-plaintext attack with quantum memory. However, an…

Cryptography and Security · Computer Science 2019-02-15 Takehisa Iwakoshi

Advanced Encryption Standard (AES) algorithm is considered as a secured algorithm. Still, some security issues lie in the S-Box and the key used. In this paper, we have tried to give focus on the security of the key used. Here, the proposed…

Cryptography and Security · Computer Science 2013-07-12 Chittaranjan Pradhan , Ajay Kumar Bisoi

Plasma is a framework for scalable off-chain computation. We describe and evaluate Plasma Cash, an improved Plasma construction which leverages non-fungible tokens and Sparse Merkle Trees to reduce the data storage and bandwidth…

Cryptography and Security · Computer Science 2019-11-28 Georgios Konstantopoulos

Modern DDoS defense systems rely on probabilistic monitoring algorithms to identify flows that exceed a volume threshold and should thus be penalized. Commonly, classic sketch algorithms are considered sufficiently accurate for usage in…

Cryptography and Security · Computer Science 2023-07-10 Simon Scherrer , Jo Vliegen , Arish Sateesan , Hsu-Chun Hsiao , Nele Mentens , Adrian Perrig

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

This paper proposes a new block cipher termed as "Modular Arithmetic based Block Cipher with Varying Key-Spaces (MABCVK)" that uses private key-spaces of varying lengths to encrypt data files. There is a simple but intelligent use of theory…

Cryptography and Security · Computer Science 2012-03-28 Abhijit Chowdhury , Angshu Kumar Sinha , Saurabh Dutta

In this paper, we assess the security and testability of the state-of-the-art design-for-security (DFS) architectures in the presence of scan-chain locking/obfuscation, a group of solution that has previously proposed to restrict…

Cryptography and Security · Computer Science 2020-05-12 Hadi Mardani Kamali , Kimia Zamiri Azar , Houman Homayoun , Avesta Sasan

The signcryption is a relatively new cryptographic technique that is supposed to fulfill the functionalities of encryption and digital signature in a single logical step. Although several signcryption schemes are proposed over the years,…

Cryptography and Security · Computer Science 2012-03-21 M. Toorani , A. A. Beheshti

Directory-based protocols have been the de facto solution for maintaining cache coherence in shared-memory parallel systems comprising multi/many cores, where each store instruction is eagerly made globally visible by invalidating the…

Hardware Architecture · Computer Science 2012-10-09 Daofu Liu , Yunji Chen , Qi Guo , Tianshi Chen , Ling Li , Qunfeng Dong , Weiwu Hu

A while ago, I developed what I called an encryption method. The most favorable of reviews did not see a method but a collection of techniques. Be that as it may, the process used, is described in the paper, Windtalking Computers. This…

Cryptography and Security · Computer Science 2013-06-04 Givon Zirkind

Next-generation wireless technologies (for immersive-massive communication, joint communication and sensing) demand highly parallel architectures for massive data processing. A common architectural template scales up by grouping tens to…

Hardware Architecture · Computer Science 2025-07-08 Samuel Riedel , Yichao Zhang , Marco Bertuletti , Luca Benini

Most traditional alarm systems cannot address security threats in a satisfactory manner. To alleviate this problem, we developed a high-confidence cyber-physical alarm system (CPAS), a new kind of alarm systems. This system establishes the…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-17 Longhua Ma , Tengkai Yuan , Feng Xia , Ming Xu , Jun Yao , Meng Shao

Graph algorithms and techniques are increasingly being used in scientific and commercial applications to express relations and explore large data sets. Although conventional or commodity computer architectures, like CPU or GPU, can compute…

Hardware Architecture · Computer Science 2017-07-03 Michel A. Kinsy , Rashmi S. Agrawal , Hien D. Nguyen

With meteoric developments in communication systems and data storage technologies, the need for secure data transmission is more crucial than ever. The level of security provided by any cryptosystem relies on the sensitivity of the private…

Cryptography and Security · Computer Science 2020-11-03 Unnikrishnan Menon , Anirudh Rajiv Menon , Atharva Hudlikar

We consider a new type of attack on a coherent quantum key distribution protocol [coherent one-way (COW) protocol]. The main idea of the attack consists in measuring individually the intercepted states and sending the rest of them…

Quantum Physics · Physics 2017-07-18 D. A. Kronberg , E. O. Kiktenko , A. K. Fedorov , Y. V. Kurochkin