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نتیجه جستجو - Privacy-preservation

تعداد مقالات یافته شده: 2
ردیف عنوان نوع
1 An Efficient Identity-Based Signature Scheme without Bilinear Pairing for Vehicle-To-Vehicle Communication in VANETs
یک طرح امضایی مبتنی بر هویت کارآمد و بدون جفت دو طرفه برای ارتباط وسیله نقلیه به وسیله نقلیه در VANET-2019
Vehicles exchange traffic-related messages with neighboring vehicles to aid passengers and provide efficient traffic management. This is done via wireless communication channels in Vehicular Ad Hoc Networks (VANETs). Security and privacy issues are a major concern in VANETs. A typical attack consists of a malicious third party modifying and retransmitting intercepted messages. Current state of the art solutions enable a verifier to authenticate the source of received messages as well as to check their integrity before accepting them. However, these solutions do not adequately address the efficiency with which multiple messages are verified in VANETs deployed in high traffic density areas. Due to this, the computational load on a verifier is increased. In this paper, an efficient Identity-Based Signature with Conditional Privacy-Preserving Authentication (IBS-CPPA) scheme based on the Elliptic Curve Cryptography (ECC) and general one-way hash functions for V2V communication is proposed. This scheme supports the batch signature verification method, which enables each vehicle to authenticate a large number of messages at the same time. We provide a security proof of the proposed IBS-CPPA scheme in the random oracle model. The performance evaluation indicates that our scheme is more efficient in terms of computational cost with respect to similar schemes.
Keywords: Privacy-preservation | Identity-based cryptography | Bilinear pairing | Computational cost
مقاله انگلیسی
2 ANEL: A novel efficient and lightweight authentication scheme for vehicular ad hoc networks
ANEL: یک طرح احراز هویت کارآمد و سبک وزن جدید برای شبکه های ad hoc وسایل نقلیه-2019
Due to the large traffic congestion in modern-day, Vehicular Ad Hoc Network (VANET) becomes an im- portant approach to improve human safety and driving comfort. The large traffic congestion increases the number of transmitted messages, which in turn increases the computations and communications over- heads in VANET. Hence, VANET requires not only efficient communications, but also lightweight security mechanisms to overcome security challenges. There are many schemes provide security to VANET by us- ing cryptography techniques such as elliptic curve technique, session key technique, public key technique, and message authentication code technique. The schemes that use the message authentication code are called MAC-based authentication schemes. They considered as the best schemes in terms of computation and communication overheads when compared with other schemes that use other cryptography tech- niques, but they have some limitations. This paper proposes a novel efficient and lightweight authentica- tion scheme (ANEL). The ANEL is a MAC-based authentication scheme that offers all the advantages of the MAC-based authentication schemes and overcomes all their limitations at the same time. In addition, the proposed scheme can achieve security objectives of VANET such as authentication, privacy-preservation, non-repudiation, etc. Moreover, our scheme provides an efficient biological password login, system key update, biological password update, and other security services. Furthermore, in this proposed scheme, the Trust Authority (TA) can disclose the source driver and vehicle of each malicious message. The se- curity analysis shows that ANEL is the first scheme that provides countermeasures on the disclosure of system key, and it can protect VANET from various well-known attacks. The comparison results of our scheme with existing MAC-based authentication schemes in terms of computation overhead, communi- cation overhead, and security services show that the proposed scheme is more efficient and provides a high level of security. The simulation results with ONE simulator demonstrate that our scheme reduces the message authentication time and end-to-end delay when compared with previous security schemes discussed in the literature.
Keywords: Vehicular ad hoc network | Authentication | Security | ONE simulation
مقاله انگلیسی
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