IBEET-RSA: Identity-Based Encryption with Equality Test over RSA for Wireless Body Area Networks

et al. 2020

Self Cite

Many sensitive data are generated by resource-limitation devices in the Vehicular ad hoc network (VANET). When these data are divulged, people 's life and property will be threatened. To solve these problems, Wei et al. proposed a lightweight privacy-preserving protocol based on RSA assumption for VANET and they claimed that their protocol was secure and low overhead. In this paper, first of all, we show that the basic signature scheme to be used in Wei et al.'s protocol is not secure, i.e., the user's private key will be revealed from the pairs of message-signatures, which causes the protocol to be insecure. We also show that our security analysis is feasible and effective in practice from the theory and experiments. Then we construct a new identity-based signature scheme based RSA assumption and prove it is existentially unforgeable under the chosen message attack without random oracle. Finally, we update the Wei et al.'s protocol and do some experiments to evaluate the efficiency of our scheme in the updated protocol. INDEX TERMS Common modulus attack, security analysis, VANETs privacy-preserving, IBS.

Section: Introductionmentioning

confidence: 99%

Security Analysis of an Identity-Based Signature From Factorization Problem

Zhang

et al. 2020

Self Cite

“…In the field of wireless communications, mobile communications, or any other low-power communication systems, the power consumptions, computational cost, and communications overhead cause severe problems due to the restrictions of lightweight communication systems performance, especially for PKC cryptosystem. Many other approaches have proposed techniques that require the use of PKC to improve the security level in such lightweight communication systems [47], [48]. As depicted in both Table 2 and Figure 3, the computational cost of our scheme decreases compared to the computational costs in schemes [35]- [37].…”

Section: E Comparison Analysismentioning

confidence: 80%

Identity-Based Signature With Server-Aided Verification Scheme for 5G Mobile Systems

Ramadan

et al. 2020

Self Cite

Recently, security and privacy issues in mobile communication systems became an enormous challenge due to the limited resources of mobile networks regarding communication overhead, computational cost, and battery power. 5G systems provide high performance and flexibility that can connect billion of objects through Heterogeneous Wireless Networks (HWN) concerning the Internet of Things (IoT). However, some of these security challenges can be addressed by using outsourced assistants such as Server-Aided Verification (SAV) to contribute partially with the authentication process among 5G network entities. In this paper, we propose an efficient and secure identity-based signature scheme with Server-Aided Verification for 5G mobile systems (IBS-SAV). We provide a performance evaluation based on security proof of the proposed IBS-SAV scheme under existential unforgeable in the random oracle model as well as the security against collusion and adaptive chosen message attack (EUF-CMA). The performance evaluation and security analysis demonstrate that our IBS-SAV scheme is not only secure but also can reduce the communication and computation complexity for mobile systems efficiently. INDEX TERMS Public key cryptography (PKC), identity-based signature (IBS), server-aided verification (SAV), 5G mobile systems.

“…Until recently, Shen et al [6] stated the importance of sensitive information hiding in detail and creatively proposed a remote auditing scheme supporting such essential attribute. The introduction of this scheme also brings some potential influence to other aspect, such as decreasing the overhead of the ciphertext query [33]- [36], and verification in the untrusted cloud server [37], [38]. However, we observe that three issues are not addressed well in their scheme.…”

Section: A Related Workmentioning

confidence: 94%

Identity-Based Auditing for Shared Cloud Data With Efficient and Secure Sensitive Information Hiding

et al. 2019

Self Cite

The advent of cloud computing arouses the flourish of data sharing, promoting the development of research, especially in the fields of data analysis, artificial intelligence, etc. In order to address sensitive information hiding, auditing shared data efficiently and malicious manager preventing, we propose an identity-based auditing scheme for shared cloud data with a secure mechanism to hide sensitive information. This scheme provides a solution that allows users to share plaintext with researchers and keeps sensitive information invisible to the cloud and researchers at the same time. Besides, a formal security analysis is given to prove the strong security of the proposed scheme. Performance evaluation and experimental results demonstrate that our scheme is significantly more efficient over the existing scheme due to our novel mechanism for sensitive information hiding and simplifying signature algorithm. Compared to the existing approach to audit the integrity of shared data with sensitive information hiding, our scheme has desirable features and advantages as follow. Firstly, previous work has failed to construct a secure scheme to prevent malicious manager. We fill this gap and guarantee the integrity and authenticity of shared data. Secondly, our scheme constructs a novel system model to support high concurrency and massive data in the real scenario.INDEX TERMS Cloud computing, shared cloud data, remote auditing, sensitive information hiding, malicious manager preventing.