Computationally efficient and secure anonymous authentication scheme for cloud users

Arasan, Anakath; Sadaiyandi, Rajakumar; Al‐Turjman, Fadi; Rajasekaran, Arun Sekar; Karuppuswamy, Kalai Selvi

doi:10.1007/s00779-021-01566-9

Cited by 21 publications

(10 citation statements)

References 31 publications

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“…However, most current solutions just guarantee anonymity but neglecting unlinkability. In many authentication schemes [2][3][4] designed for VANETs, the TA serves as the management centre, generating anonymous authentication credentials for vehicles, like anonymous public keys, and also assisting in the completion of vehicles and RSU's registration in its domain. To enable a diverse variety of Internet of vehicle networks, the TA must be dispersed in nature.…”

Section: Introductionmentioning

confidence: 99%

An Anonymous Signature-Based Authentication and Key Agreement Scheme for Vehicular Ad Hoc Networks

Azees

Rajasekaran

Satti

2022

Security and Communication Networks

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Anonymous authentication is a critical step in safeguarding vehicle privacy and security in VANETs. VANETs connected with blockchain are gaining popularity as a means to increase the effectiveness of anonymous authentication across many security domains. However, present blockchain-assisted authentication systems cannot successfully achieve anonymity since colluding RSUs or vehicles may acquire linkability via the same retrieved record, hence destroying anonymity. To solve the problem, the proposed work offers an unlinkable anonymous signature-based authentication for VANET to ensure collusion resistance. To provide V2R unlinkability, a trusted authority issues anonymous parameters that conceal the vehicle's identification from RSUs and other vehicles in the VANET system. The vehicle user produces anonymous signatures, and RSUs validate them during anonymous authentication. Moreover, the proposed authentication methods are based on an anonymous certificateless signature (ACS) approach that is computationally more efficient and provably safe against eternal forgery in the random oracle model. Additionally, the proposed work guarantees that neither an RSU nor a vehicle has the authority to divulge users’ true identities. Hence, the proposed system has stringent unlinkability and better anonymity, and it enhances the efficiency of V2R and V2V communications considerably according to security analysis and performance assessment.

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Section: Introductionmentioning

confidence: 99%

An Anonymous Signature-Based Authentication and Key Agreement Scheme for Vehicular Ad Hoc Networks

Azees

Rajasekaran

Satti

2022

Security and Communication Networks

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“…The anonymity of the end users and security against impersonation attack is achieved in this work. Several authentication schemes based on authentication and key agreement protocol are suggested in the works [ 16 , 17 , 18 ]. These works mainly focus on the unlinkability between the end users and forward secrecy having the main drawback in the reply attack.…”

Section: Related Workmentioning

confidence: 99%

Blockchain Enabled Anonymous Privacy-Preserving Authentication Scheme for Internet of Health Things

Rajasekaran

Azees

Maheswar

et al. 2022

Sensors

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The Internet of Health Things (IoHT) has emerged as an attractive networking paradigm in wireless communications, integrated devices and embedded system technologies. In the IoHT, real-time health data are collected through smart healthcare sensors and, in recent years, the IoHT has started to have an important role in the Internet of Things technology. Although the IoHT provides comfort in health monitoring, it also imposes security challenges in maintaining patient data confidentiality and privacy. To overcome such security issues, in this paper, a novel blockchain-based privacy-preserving authentication scheme is proposed as an approach for achieving efficient authentication of the patient without the involvement of a trusted entity. Moreover, a secure handover authentication mechanism that ensures avoiding the patient re-authentication in multi-doctor communication scenarios and revoking the possible malicious misbehavior of medical professionals in the IoHT communication with the patient is developed. The performance of the proposed authentication and handover scheme is analyzed concerning the existing state-of-the-art authentication schemes. The results of the performance analyses reveal that the proposed authentication scheme is resistant to different types of security attacks. Moreover, the results of analyses show that the proposed authentication scheme outperforms similar state-of-the-art authentication schemes in terms of having lower computational, communication and storage costs. Therefore, the novel authentication and handover scheme has proven practical applicability and represents a valuable contribution to improving the security of communication in IoHT networks.

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“…At present, a large number of excellent schemes [21][22][23] have emerged in mobile medical, and their security and flexibility have been continuously enriched.…”

Section: Related Workmentioning

confidence: 99%

A Blockchain-Based Privacy Preservation Scheme in Mobile Medical

Hai-ying

Wei

et al. 2022

Security and Communication Networks

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With the rapid development of mobile medical, how to establish an effective security mechanism to protect data security and privacy while users enjoy medical services has become an urgent problem to be solved. Aiming at the easy leakage of privacy in mobile medical terminals and untrustworthy data, we make use of a role-separated mechanism to generate trusted anonymous certificates. We propose a lightweight identity authentication scheme and adopt blockchain to protect the security of medical data. Meanwhile, in view of the problems of transparency and visibility of blockchain information, we adapt the searchable encryption algorithm to realize ciphertext processing in the whole life cycle. Experiments show that our scheme can reduce the cost of computation on the basis of ensuring traffic. In the process of dynamic updating of ciphertext keywords, except the keyword identifier, less information is leaked to the server, which protects privacy of users.

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Computationally efficient and secure anonymous authentication scheme for cloud users

Cited by 21 publications

References 31 publications

An Anonymous Signature-Based Authentication and Key Agreement Scheme for Vehicular Ad Hoc Networks

An Anonymous Signature-Based Authentication and Key Agreement Scheme for Vehicular Ad Hoc Networks

Blockchain Enabled Anonymous Privacy-Preserving Authentication Scheme for Internet of Health Things

A Blockchain-Based Privacy Preservation Scheme in Mobile Medical

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