Identity-Based Broadcast Encryption with Efficient Revocation

Ge, Aijun; Wei, Puwen

doi:10.1007/978-3-030-17253-4_14

Cited by 25 publications

(8 citation statements)

References 36 publications

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“…Firstly, Alice will communicate with PKG and obtains master public key for the encryption purpose. For generating the master private key, PKG uses Alice's personal information and timestamp as another parameter [5,6]. PKG authenticates Alice first, and then, Alice receives master private key.…”

Section: Introductionmentioning

confidence: 99%

An Improved Secure Key Generation Using Enhanced Identity-Based Encryption for Cloud Computing in Large-Scale 5G

Gupta

Almuzaini

Pateriya

et al. 2022

Wireless Communications and Mobile Computing

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The demand of cloud computing and 5G networks has increased in the current scenario due to their attractive features and also the security related to the data over the cloud. In the context of cloud security, there is a number of computationally hard methods available. One of the most popular methods used to secure data over the cloud is the identity-based encryption (IBE). It is an access policy that allows only authorized users to access legible data in order to avoid a malicious attack. IBE comprises of four stages, namely, setup, key generation or extract, encryption, and decryption. Key generation is one of the important and time-consuming phases in which a security key is generated. It is a computational and decisional hard problem for generating unbreakable and nonderivable secure keys. This paper proposes an enhanced identity-based encryption approach where a secure key is generated using part of an identity bit string in order to avoid leakage of users’ identity even if an adversary or attacker decodes the key or encrypted data. Experiment results show that the prosed algorithm takes less time in the encryption and decryption as compared to the competitive approach named efficient selective-ID secure identity-based encryption approach. One of the most important features of the proposed approach is that it hides the user’s identity by using the Lagrange coefficient, which consists of a polynomial interpolation function. The security of the system depends on the hardness of computing the bilinear Diffie-Hellman problem.

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Section: Introductionmentioning

confidence: 99%

An Improved Secure Key Generation Using Enhanced Identity-Based Encryption for Cloud Computing in Large-Scale 5G

Gupta

Almuzaini

Pateriya

et al. 2022

Wireless Communications and Mobile Computing

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show abstract

“…Because the computational complexity depends on the number of receivers, the scheme has huge overhead. Ge et al [32] improved the performance of traditional broadcast encryption and realized effective revocation management for members in S. Only users who have not been revoked can decrypt the ciphertext. However, due to the use of attributebased encryption, the computation cost is relatively large.…”

Section: Related Workmentioning

confidence: 99%

Broadcast Encryption Scheme for V2I Communication in VANETs

Zhong

Zhang

Cui

et al. 2022

IEEE Trans. Veh. Technol.

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Information dissemination in vehicular ad hoc networks (VANETs) is inseparable from the interaction between vehicles and infrastructure. The trust authority (TA) often plays a pivotal role in VANETs and requires interaction with multiple vehicles. However, when the TA sends the same message to multiple vehicles, there are many redundancies, as it needs to negotiate with each vehicle and send them different ciphertexts. This greatly reduces the work efficiency of the TA. To the best of our knowledge, there is no research on the problem of redundancy that occurs when the same message is sent to multiple vehicles in VANETs. The proposed scheme adopts identity-based broadcast encryption (IBBE) technology, which is a secure data-sharing scheme suitable for the vehicle-toinfrastructure communication mode, in VANETs for the first time. Thus, with only one encryption, the TA can generate a fixed-length ciphertext for a group of vehicles. When there are new vehicles that subsequently request a service, the TA can assign encryption tasks to the proxy server. In terms of security, our scheme meets the particular requirements of VANETs. The encryption overhead of the sender and the length of the ciphertext were comparatively analyzed. The results demonstrated that the performance of the scheme improved significantly. Thus, our scheme can prevent redundancies and effectively improve the work efficiency of TA.

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“…Abe et al [20] put forward to a more efficient tag-KEM/DEM scheme. Then, many KEM/ DEM schemes [21][22][23][24][25][26][27][28] have been proposed. These designs support both components modular design.…”

Section: Related Workmentioning

confidence: 99%

Heterogeneous deniable authenticated encryption for location-based services

et al. 2021

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The location-based services can provide users with the requested location information. But users also need to disclose their current location to the location-based service provider. Therefore, how to protect user’s location privacy is a major concern. In this paper, we propose a heterogeneous deniable authenticated encryption scheme called HDAE for location-based services. The proposed scheme permits a sender in a public key infrastructure environment to transmit a message to a receiver in an identity-based environment. Our design utilizes a hybrid encryption method combing the tag-key encapsulation mechanism (tag-KEM) and the data encapsulation mechanism (DEM), which is well adopted for location-based services applications. We give how to design an HDAE scheme utilizing a heterogeneous deniable authenticated tag-KEM (HDATK) and a DEM. We also construct an HDATK scheme and provide security proof in the random oracle model. Comprehensive analysis shows that our scheme is efficient and secure. In addition, we give an application of the HDAE to a location-based services system.

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Identity-Based Broadcast Encryption with Efficient Revocation

Cited by 25 publications

References 36 publications

An Improved Secure Key Generation Using Enhanced Identity-Based Encryption for Cloud Computing in Large-Scale 5G

An Improved Secure Key Generation Using Enhanced Identity-Based Encryption for Cloud Computing in Large-Scale 5G

Broadcast Encryption Scheme for V2I Communication in VANETs

Heterogeneous deniable authenticated encryption for location-based services

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