Light‐weight group signatures with time‐bound membership

Malina, Lukáš; Hajný, Jan; Zeman, Václav

doi:10.1002/sec.1383

Cited by 6 publications

(5 citation statements)

References 34 publications

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“…Another important aspect of group signature is batch verification, which increases verification efficiency by simultaneously verifying multiple signatures [45], [46]. They given a few essential perceptions to decide while matching conditions can be bunch checked and how to create a proficient bunch verifier, trailed by [47].…”

Section: A Group Signaturesmentioning

confidence: 99%

A Scalable Blockchain Framework for Secure Transactions in IoT-Based Dynamic Applications

Basudan

2023

IEEE Open J. Commun. Soc.

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The essential characteristics of blockchain, such as immutability and auditability, are leading to its increasing incorporation into society. The Internet of Things (IoT) aims to create a decentralized framework for IoT and enhance security. The processing of transactions for different IoT applications poses challenges for the convergence of IoT and blockchain due to varying performance requirements. In addition, it is important to note that the dispersed IoT system's membership may change when an IoT device adds or departs from it. As the system becomes dynamic, it presents new difficulties for managing devices. Accordingly, a dynamic application block generation (DABG) scheme for blockchain-enabled IoT with dynamic device management and conditional traceability is proposed. To begin, it is necessary to construct a framework for an IoT system based on a consortium blockchain. This framework should consist of structures for dynamic application transactions and blocks, as well as a consensus mechanism. Miners are presented in distinct ways to adaptively process urgent and routine application transactions. A protocol based on group signature, known as DABG, is proposed for this framework. It is possible to achieve nonframeability, traceability, and anonymity by the use of the group signature. The suggested method may quickly validate transactions, manage devices in a dynamic manner, enable conditional traceability while maintaining data security, and keep users' privacy intact. This is made possible by merging time-bound keys in the group signatures and node in the blockchain. Extensive testing has shown that the strategy in question has the potential to achieve very high levels of effectiveness.INDEX TERMS Blockchain, internet of things (IoT), security and privacy, scalability.

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Section: A Group Signaturesmentioning

confidence: 99%

A Scalable Blockchain Framework for Secure Transactions in IoT-Based Dynamic Applications

Basudan

2023

IEEE Open J. Commun. Soc.

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“…Besides, time-bound keys (TBK) management techniques [30], which means that secret key is embedded with a timestamp, are usually combined with group key management, broadcast encryption, group signature, attribute-based encryption for efficient revocation, access control, and anonymous authentication on the time dimension [5,[31][32][33][34]. It is crucial to highlight that, for the sake of downsizing the expense of RC in practical settings, Chu et al [31] detailed a feasible method called group signature with time-bound keys (GS-TBK).…”

Section: Iot Devicesmentioning

confidence: 99%

“…Constant signing cost was provided, unlike the earlier solution where the efficiency of signing depends entirely on the length of bits representing the time. Similarly, Malina et al [33] and Perera et al [28] provided group signatures with time-bound membership but not consider premature revocation and fail to resist forgeability signing time and expiry time.…”

Section: Iot Devicesmentioning

confidence: 99%

Group signature with time-bound keys and unforgeability of expiry time for smart cities

Fang

Feng

2021

J Wireless Com Network

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Internet of Things (IoT) lays the foundation for the various applications in smart cities, yet resource-constrained IoT devices are prone to suffer from devastating cyberattacks and privacy leak threats, thus are inevitability supposed as the weakest link of the systems in smart cities. Mitigating the security risks of data and the computing limitation of edge devices, especially identity authentication and key validity management of group devices are essential for IoT system security. In order to tackle the issues of anonymity, traceability, unforgeability of expiry time as well as efficient membership revocation for life-cycle management of devices in IoT setting, we presented a dynamic time-bound group signature with unforgeability of expiry time. Unforgeability of expiry time disables a revoked signer to create a valid signature by means of associating the signing key with an expiry time. The anonymity and traceability of the proposed scheme contribute to the identity privacy of the entities and supervision for authority agency. Moreover, our proposal is feasible in the resource-constrained setting for efficient computational cost of signing and verification algorithms.

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“…As the advancement of mobile ad-hoc networks (MANETs) including vehicular ad-hoc networks (VANETs), security and privacy are now becoming a matter that is very mandatory to be considered [1]- [5]. We can not deny due to such networks are infrastructureless networks accessed freely and wirelessly at anytime and anywhere as long as the device can reach them.…”

mentioning

confidence: 99%

“…al. [4], [5] introduced an efficient group signature for privacy-preserving in the vehicular networks. The proposed system is able to minimize the impact of several common attacks such as denial of services (DoS) and reply attacks.…”

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confidence: 99%

An Anonymous Authentication With Received Signal Strength Based Pseudonymous Identities Generation for VANETs

Sudarsono

Yuliana

2023

IEEE Access

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Our proposed key stream derived from shared key generation process based on received signal strength (RSS) represents pseudonymous identities (PIDs) utilized in an anonymous authentication is obtained through an interactive connection between communicating mobile users and an authorized entity taken over by a Group Manager (GM). This process goal is fetching some credentials in advance, when mobile users actively and anonymously are playing their role in the system. These PIDs could be embedded in the credential equipped to the participating mobile users. They should be usually unique and must be secured from any adversary when doing any either attack or treat. In this paper, our proposed shared key generation derived from RSS between communicating mobile users and GM provides unique PIDs. Then, the embedded PID at an epoch time as a part of mobile users secret key together with credential components are used for signing a message anonymously. Based on PID at epoch time and updated revocation list obtained from GM, verifier user ensures the validity of signature. The measurement scenario of system performance is done by varying the traffic conditions either quiet or crowded to create communication impairment combined with mobile users' speed varying on 20 km/h, 40 km/h, and 60 km/h respectively. The ping time interval is varied as well, it is configured to 7 ms, 10 ms, and 20 ms, respectively. Here, the result of evaluation showed that PIDs generation works properly by the number of generated PIDs up to 11 with the highest correlation is achieved up to 0.99. Meanwhile, quantization algorithm works properly for 3000 or more ICMP packets and achieves zero key disagreement rate (KDR). Total signing and verification times are sufficient practical about 90 ms and 100 ms, respectively.

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Light‐weight group signatures with time‐bound membership

Cited by 6 publications

References 34 publications

A Scalable Blockchain Framework for Secure Transactions in IoT-Based Dynamic Applications

A Scalable Blockchain Framework for Secure Transactions in IoT-Based Dynamic Applications

Group signature with time-bound keys and unforgeability of expiry time for smart cities

An Anonymous Authentication With Received Signal Strength Based Pseudonymous Identities Generation for VANETs

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