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Balancing robust security with strong privacy guarantees is critical for Risk-Based Adaptive Authentication (RBA), particularly in decentralized settings. Federated Learning (FL) offers a promising solution by enabling collaborative risk…

Cryptography and Security · Computer Science 2025-09-23 Yaser Baseri , Abdelhakim Senhaji Hafid , Dimitrios Makrakis , Hamidreza Fereidouni

Achieving quantum computational advantage requires solving a classically intractable problem on a quantum device. Natural proposals rely upon the intrinsic hardness of classically simulating quantum mechanics; however, verifying the output…

This paper develops a novel framework for sharing secret keys using the Automatic Repeat reQuest (ARQ) protocol. We first characterize the underlying information theoretic limits, under different assumptions on the channel spatial and…

Information Theory · Computer Science 2013-04-09 Yara Abdallah , Mohamed Abdel Latif , Moustafa Youssef , Ahmed Sultan , Hesham El Gamal

In this report, we simulate practical feature of Yuen-Kim protocol for quantum key distribution with unconditional secure. In order to demonstrate them experimentally by intensity modulation/direct detection(IMDD) optical fiber…

Quantum Physics · Physics 2007-05-23 O. Hirota , K. Kato , M. Sohma

Quantum cryptography is a major ingredient of the future quantum internet that promises various secure communication tasks. Quantum conference key agreement (CKA) is an important cryptographic primitive of quantum cryptography, which…

Quantum Physics · Physics 2021-09-28 Xiao-Yu Cao , Yu-shuo Lu , Zhao Li , Jie Gu , Hua-Lei Yin , Zeng-Bing Chen

We consider in this paper the problem of information reconciliation in the context of secret key agreement between two legitimate parties, Alice and Bob. Beginning the discussion with the secret key agreement model introduced by Ahlswede…

Information Theory · Computer Science 2011-06-07 David Elkouss , Jesus Martinez-Mateo , Vicente Martin

Public key authenticated encryption with keyword search (PAEKS) represents a significant advancement of secure and searchable data sharing in public network systems, such as medical systems. It can effectively mitigate the risk of keyword…

Cryptography and Security · Computer Science 2025-03-24 Jiayin Cai , Xingwen Zhao , Dexin Li , Hui Li , Kai Fan

We consider the problem of information-theoretic secrecy in identification schemes rather than transmission schemes. In identification, large identities are encoded into small challenges sent with the sole goal of allowing at the receiver…

Information Theory · Computer Science 2023-10-26 Mattia Spandri , Roberto Ferrara , Christian Deppe , Moritz Wiese , Holger Boche

Two-factor authentication (2FA) schemes that rely on a combination of knowledge factors (e.g., PIN) and device possession have gained popularity. Some of these schemes remain secure even against strong adversaries that (a) observe the…

Cryptography and Security · Computer Science 2022-08-08 Steven J. Murdoch , Aydin Abadi

Integrated sensing and communication (ISAC) combines sensing and communication within a shared system framework by using the same transmitted signal for both objectives. ISAC can improve the efficiency of spectrum and hardware use but also…

Information Theory · Computer Science 2026-05-12 Truman Welling , Onur Günlü , Aylin Yener

Current methods for data access control, especially regarding AI and AI automation, face unique challenges in ensuring appropriate data access. We introduce Integer-Based Access Control (IBAC), addressing the limitations of Role-Based…

Cryptography and Security · Computer Science 2024-10-28 Mark Stocks

Blockchain-based Attribute-Based Access Control (BC-ABAC) offers a decentralized paradigm for secure data governance but faces two inherent challenges: the transparency of blockchain ledgers threatens user privacy by enabling…

Cryptography and Security · Computer Science 2026-05-26 Jie Zhang , Xiaohong Li , Mengke Zhang , Ruitao Feng , Shanshan Xu , Zhe Hou , Guangdong Bai

Efficient and secure revocable attribute-based encryption (RABE) is vital for ensuring flexible and fine-grained access control and data sharing in cloud storage and outsourced data environments within the Internet of Things (IoT). However,…

Cryptography and Security · Computer Science 2025-09-26 Yongjiao Li , Liang Zhu , Yalin Deng , Qikun Zhang , Zhenlei Wang , Zhu Cao

Various techniques need to be combined to realize anonymously authenticated communication. Cryptographic tools enable anonymous user authentication while anonymous communication protocols hide users' IP addresses from service providers. One…

Networking and Internet Architecture · Computer Science 2014-05-09 Keita Emura , Akira Kanaoka , Satoshi Ohta , Takeshi Takahashi

The very high growth of Intelligent Transportation Systems (ITS) has generated an urgent requirement for secure, effective, and context-aware data sharing mechanisms, especially over heterogeneous and geographically dispersed settings. This…

Cryptography and Security · Computer Science 2026-02-23 Aparna Singh , Geetanjali Rathee , Chaker Abdelaziz Kerrache , Mohamed Chahine Ghanem

Along with the miniaturization of various types of sensors, a mass of intelligent terminals are gaining stronger sensing capability, which raises a deeper perception and better prospect of Internet of Things (IoT). With big sensing data,…

Cryptography and Security · Computer Science 2018-11-12 Jingwei Liu , Jinping Han , Longfei Wu , Rong Sun , Xiaojiang Du

This Paper proposes an ECDH key exchange method and an ECsig Digital Signature Authentication method based on group with Koblits curve, man-in-the-middle attack prevention method for SA payload and initiator identification payload to design…

Cryptography and Security · Computer Science 2016-05-02 Pak Song-Ho , Pak Myong-Suk , Jang Chung-Hyok

The proliferation of IoT devices and their reliance on Wi-Fi networks have introduced significant security vulnerabilities, particularly the KRACK and Kr00k attacks, which exploit weaknesses in WPA2 encryption to intercept and manipulate…

Cryptography and Security · Computer Science 2025-12-23 Md Minhazul Islam Munna , Md Mahbubur Rahman , Jaroslav Frnda , Muhammad Shahid Anwar , Alpamis Kutlimuratov

Quantum key distribution (QKD) protocols are essential to guarantee information-theoretic security in quantum communication. Although there was some previous work on quantum group key distribution, they still face many challenges under a…

Quantum Physics · Physics 2023-12-08 Qiang Zhao , Zhuohua Li , John C. S. Lui

A mobile ad hoc network (MANET) is a collection of mobile nodes that communicate with each other by forming a multi-hop radio network. Security remains a major challenge for these networks due to their features of open medium, dynamically…

Cryptography and Security · Computer Science 2021-09-07 Jaydip Sen