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This paper presents an efficient fair document exchange protocol. The exchange of the documents will be between two parties. The protocol is based on the verifiable and recoverable encryption of a document's key. This verifiable and…

Cryptography and Security · Computer Science 2012-04-10 Abdullah M. Alaraj

The smart grid is envisioned to significantly enhance the efficiency of energy consumption, by utilizing two-way communication channels between consumers and operators. For example, operators can opportunistically leverage the delay…

Networking and Internet Architecture · Computer Science 2016-11-17 Yara Abdallah , Zizhan Zheng , Ness B. Shroff , Hesham El Gamal

Users of quantum networks can securely communicate via so-called (quantum) conference key agreement --making their identities publicly known. In certain circumstances, however, communicating users demand anonymity. Here, we introduce a…

The paper presents the implementation of a quantum cryptography protocol for secure communication between servers in the cloud. As computing power increases, classical cryptography and key management schemes based on computational…

Certificates ensure the authenticity of users' public keys, however their overhead (e.g., certificate chains) might be too costly for some IoT systems like aerial drones. Certificate-free cryptosystems, like identity-based and…

Cryptography and Security · Computer Science 2021-03-18 Rouzbeh Behnia , Attila A. Yavuz , Muslum Ozgur Ozmen , Tsz Hon Yuen

Replay attack and password attacks are serious issues in the Kerberos authentication protocol. Many ideas have been proposed to prevent these attacks but they increase complexity of the total Kerberos environment. In this paper we present…

Cryptography and Security · Computer Science 2013-04-15 Gagan Dua , Nitin Gautam , Dharmendar Sharma , Ankit Arora

Risk-based authentication (RBA) extends authentication mechanisms to make them more robust against account takeover attacks, such as those using stolen passwords. RBA is recommended by NIST and NCSC to strengthen password-based…

Cryptography and Security · Computer Science 2023-01-05 Stephan Wiefling , Jan Tolsdorf , Luigi Lo Iacono

Since 1981, when Lamport introduced the remote user authentication scheme using table, a plenty of schemes had been proposed with tables or without table using. Recently Das et al. proposed a dynamic id-based remote user authentication…

Cryptography and Security · Computer Science 2007-05-23 Amit K Awasthi

The Internet of Medical Things has revolutionized the healthcare industry, enabling the seamless integration of connected medical devices and wearable sensors to enhance patient care and optimize healthcare services. However, the rapid…

Cryptography and Security · Computer Science 2024-06-25 Iman Jafarian , Siavash Khorsandi

We present a protocol for quantum cryptographic network consisting of a quantum network center and many users, in which any pair of parties with members chosen from the whole users on request can secure a quantum key distribution by help of…

Quantum Physics · Physics 2007-05-23 Sora Choi , Soojoon Lee , Dong Pyo Chi

To cope with the soft errors and make full use of the multi-core system, this paper gives an efficient fault-tolerant hardware and software co-designed architecture for multi-core systems. And with a not large number of test patterns, it…

Hardware Architecture · Computer Science 2016-09-08 Bingbing Xia , Fei Qiao , Huazhong Yang , Hui Wang

Dynamic ID-based remote user authentication schemes ensure efficient and anonymous mutual authentication between entities. In 2013, Khan et al. proposed an improved dynamic ID-based authentication scheme to overcome the security flaws of…

Cryptography and Security · Computer Science 2014-04-15 Dheerendra Mishra

Serverless computing provides just-in-time infrastructure provisioning with rapid elasticity and a finely-grained pricing model. As full control of resource allocation is in the hands of the cloud provider and applications only consume…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-10 Natalie Carl , Tobias Pfandzelter , David Bermbach

We study the fundamental limits of multi-server secure aggregation over a two-hop network where multiple servers, each connected to a disjoint subset of users, jointly compute the sum of all users' inputs. The goal is to ensure that no…

Information Theory · Computer Science 2026-04-30 Zhou Li , Xiang Zhang , Jiguang He , Giuseppe Caire

Proper privacy protection in RFID systems is important. However, many of the schemes known are impractical, either because they use hash functions instead of the more hardware efficient symmetric encryption schemes as a efficient…

Cryptography and Security · Computer Science 2010-02-25 Jaap-Henk Hoepman , Rieks Joosten

The multi-access variant of the coded caching problem in the presence of an external wiretapper is investigated . A multi-access coded caching scheme with $K$ users, $K$ caches and $N$ files, where each user has access to $L$ neighbouring…

Information Theory · Computer Science 2021-05-13 K. K. Krishnan Namboodiri , B. Sundar Rajan

Recently, Sun et al. [Quant Inf Proc DOI: 10.1007/s11128-013-0569-x] presented an efficient multi-party quantum key agreement (QKA) protocol by employing single particles and unitary operations. The aim of this protocol is to fairly and…

Quantum Physics · Physics 2014-06-24 Wei Huang , Qiao-Yan Wen , Bin Liu , Qi Su , Fei Gao

Ensuring the correctness of distributed system implementations remains a challenging and largely unaddressed problem. In this paper we present a protocol that can be used to certify the safety of consensus implementations. Our proposed…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-03-11 Aurojit Panda

The immense shift to cloud computing has brought changes in security and privacy requirements, impacting critical Identity Management services. Currently, many IdM systems and solutions are accessible as cloud services, delivering identity…

Cryptography and Security · Computer Science 2024-10-30 Ivana Kovacevic , Tamara Rankovic , Milan Stojkov , Milos Simic

As ATM applications deploy for a banking system, the need to secure communications will become critical. However, multicast protocols do not fit the point-to-point model of most network security protocols which were designed with unicast…

Cryptography and Security · Computer Science 2015-05-13 Zeinab Ghafari , Taha Arian , Morteza Analoui
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