IET Information Security

As privacy‐enhancing authentications without any TTP (Trusted Third Party), blacklistable anonymous credential systems with reputation have been proposed. However, the previous systems have the efficiency problem: The authentication data size is O(L) or O(...

The idea of aggregate signcryption was first proposed by Selvi. The aggregation process reduces the communication overhead and hence, it is efficient in low‐bandwidth communication networks such as wireless sensor networks and vehicular ad‐hoc network ...

In this study, the authors introduce new Montgomery and Edwards form elliptic curves targeted at the 256‐bit security level. To this end, they work with three primes, namely p1:=2506−45, p2:=2510−75 and p3:=2521−1. While p3 has been considered earlier in ...

The PRISM made the research of cryptography against subversion attacks flourish these years. In a subversion attack, surveillants can compromise the security of users’ systems by subverting implementations of cryptographic algorithms. While the scenario ...

In the mid‐sixties, Rothaus introduced the notion of bent function and later presented a secondary construction of bent functions (building new bent functions from already defined ones), called Rothaus’ construction. In Zhang et al. 2017 (‘Constructing ...

Nowadays, the necessity of electronic information increases rapidly. As a consequence, often, that information needs to be shared among mutually distrustful parties. In this area, private set intersection (PSI) and its variants play an important role when ...

This study proposes a secure and privacy‐preserving protocol for outsourcing health data processing operations during the emergency in the mobile healthcare network. The proposed protocol provides a practical solution to utilise smartphone resources at ...

Security vulnerabilities in web traffic can directly lead to data leak. Preventing these data leaks to a large extent has become an important problem to solve. Besides, the accurate detection and prevention of abnormal changes in web traffic is of great ...

Socialbots are intelligent software that controls all behaviour of fake accounts in an online social network. Since they are armed with detection evasion techniques, it is valuable to be able to determine the effectiveness of these techniques. In this ...

Delegation is a technique that allows a subject receiving a delegation (the delegatee) to act on behalf of the delegating subject (the delegator). Although the existing Key Aggregate Searchable Encryption (KASE) schemes support delegation of search rights ...

Identity‐based cryptography (IBC) is considered as a promising mechanism in the Internet of Things and ad‐hoc networks, providing lightweight authentication and powerful access control. However, it suffers from two inherent problems, i.e. key escrow and ...

The authors analyse the security threats caused by personal wireless local area network (WLAN) sharing, propose schemes under two different conditions, and evaluate the performance of their schemes. WLAN is a widely used low‐cost wireless networking ...

In this study, an oblivious 3D mesh watermarking scheme is represented utilising local curvature estimation and statistical characteristics of 3D mesh to provide robustness as well as retaining the imperceptibility of the 3D model. The proposed method ...

In this study, I consider privacy against hypothesis testing adversaries within a non‐stochastic framework. He developed a theory of non‐stochastic hypothesis testing by borrowing the notion of uncertain variables from non‐stochastic information theory. I ...

Tight security is an important requirement of practical cryptographic schemes. Compared with loosely‐secure schemes, tightly‐secure schemes allow shorter security parameters hence are more efficient. In CRYPTO 2018, Gjøsteen and Jager proposed a tightly‐...

Data sharing across multiple different entities is on‐demand to upgrade an enterprise's performance. However, some malicious entity can reveal this data to an unauthorised third party that may result in heavy loss to the enterprises in terms of finance, ...

A verifiable multi‐secret sharing (VMSS) scheme allows distributors to share multiple secrets simultaneously and can detect fraud by both distributors and participants. After analysing the security of the VMSS schemes proposed by Dehkordi and Mashhadi in ...