Aggregatable Certificateless Designated Verifier Signature

Abstract

In recent years, the Internet of Things (IoT) devices have become increasingly deployed in many industries and generated a large amount of data that needs to be processed in a timely and efficient manner. Using aggregate signatures, it provides a secure and efficient way to handle large numbers of digital signatures with the same message. Recently, the privacy issue has been concerned about the topic of data sharing on the cloud. To provide the integrity, authenticity, authority, and privacy on the data sharing in the cloud storage, the notion of an aggregatable certificateless designated verifier signature scheme (ACLDVS) was proposed. ACLDVS also is a perfect tool to enable efficient privacy-preserving authentication systems for IoT and or the vehicular ad hoc networks (VANET). Our concrete scheme was proved to be secured underling of the Computational Diffie-Hellman assumption. Compared to other related schemes, our scheme is efficient, and the signature size is considerably short.

Identity-Based Designated-Verifier Proxy Signature Scheme with Information Recovery in Telemedicine System

“…In 2020, an aggregatable certificateless designated verifier signature scheme (ACLDVS) was presented by Thorncharoensri et al to implement secure data access and sharing for cloud storage. ACLDVS is efficient for privacy protection system of the Internet of Things or VANET, the security of the scheme relies on Computational Diffie-Hellman (CDH) assumption [13]. In 2017, an identity-based aggregate signature (IBAS) scheme with designated verifier for WSNs was presented by Shen et al, and the scheme was shown to be secure and efficient; it can keep data integrity; at the same time, the bandwidth and the storage efficiency are high for WSNs [14].…”

A Review on Authentication and Privacy Protection Schemes in Vehicular Ad Hoc Networks (Vanets)

“…According to Thorncharoensri et al (2020), certificateless signature authentication is the best technique for meeting privacy requirements since it has a less message overhead and a greater success rate than earlier solutions for message verification and authentication. Al-Riyami and Paterson (2003), Were the first to propose certificateless public key cryptography.…”

“…Certificateless public key cryptography, in contrast to standard public key cryptography, the technique does not require the use of a certificate to confirm the legitimacy of the public keys. Au et al in (Elhabob et al, 2019;Tan et al, 2018;Thorncharoensri et al, 2020;Yulei et al, 2018) have all studied the formal security definitions of certificateless signature (CLS) systems extensively.…”

iCLAS: an improved secure and efficient certificateless aggregate signature scheme suitable for vehicular ad hoc networks

“…The results show that the scheme satisfies message authentication, anonymity, tamper resistance and traceability, and is more suitable for dynamic vehicular networks. Thorncharoensri et al [21] proposed a certificateless aggregated signature(CLAS) scheme with a specifiable verifier to provide integrity, authenticity, permission and privacy for data sharing in cloud storage, which can provide effective privacy protection for in-vehicle networks. The scheme can achieve privacy protection for vehicles while keeping the aggregate signature length of the scheme constant, which can significantly reduce the communication and storage overheads, and outperforms recent related schemes in terms of computational and communication overheads.…”