Attribute-based re-encryption scheme in the standard model

Guo, Shanqing; Zeng, Yingpei; Wei, Juan; Xu, Qiuliang

doi:10.1007/s11859-008-0522-5

Cited by 21 publications

(18 citation statements)

References 5 publications

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“…In this section, a quick overview of the proposed system building blocks is presented. This will be followed with a detailed literature survey of the schemes proposed to integrate ABE and PRE in order to achieve one or more of the mentioned challenges and features .…”

Section: Related Workmentioning

confidence: 99%

“…Different attribute‐based proxy re‐encryption (ABPRE) schemes have evolved to overcome the mentioned PRE main limitation. ABPRE schemes have evolved into two categories, which are CP‐ABPRE and KP‐ABPRE . Generally in ABPRE schemes, data owner generates for each data consumer a secret key and a re‐encryption key associated with a set of attributes/policy.…”

Section: Related Workmentioning

confidence: 99%

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A robust cryptographic‐based system for secure data sharing in cloud environments

Mahmoud

El-Din

Elgohary

et al. 2016

Security Comm Networks

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Over the past few years, the usage of cloud storage services has been growing rapidly to share digital objects between data owner and consumers. However, such environment introduces many data privacy disclosure challenges. These challenges are maintaining data confidentiality, enforcing fine‐grained data access control, applying efficient user revocation mechanism, and resisting collusion between system users. In addition, such environment imposes the support of system scalability and generic implementation features. Unfortunately, the proposal of a robust system that accomplishes all data privacy disclosure challenges and the mentioned features is still an open problem. In this paper, a robust cryptographic‐based system that solves the stated problem is presented. In addition, the proposed system offers a novel architecture of data consumer digital identity. The presented digital identity solves scalability challenges faced by previous works without complicating data management for both data owner and consumer. Moreover, the proposed digital identity eliminates the need of online presence of data owner and consumer to exchange any information. Furthermore, the proposed system defends man‐in‐the‐middle attack, ensures identity of participants, achieves non‐repudiation, and maintains role separation between different participants. Finally, the proposed system implementation proofs the system validity to accomplish all the specified goals with acceptable performance. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

A robust cryptographic‐based system for secure data sharing in cloud environments

Mahmoud

El-Din

Elgohary

et al. 2016

Security Comm Networks

View full text Add to dashboard Cite

show abstract

“…Guo et al (Guo, Zeng, Wei, and Xu, 2008) propose a proxy re-encryption scheme based on the Goyal et al (Goyal, Pandey, Sahai, and Waters, 2006) KP-ABE scheme. The proposed scheme can transform a ciphertext associated with a set of attributes into a new ciphertext associated with another set of attributes.…”

Section: Related Workmentioning

confidence: 99%

An Encryption Scheme for a Secure Policy Updating

Ibraimi

Asim

Petković

2012

Communications in Computer and Information Science

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Abstract:Ciphertext policy attribute based encryption is an encryption technique where the data is encrypted according to an access policy over attributes. Users who have a secret key associated with a set of attributes which satisfy the access policy can decrypt the encrypted data. However, one of the drawbacks of the CP-ABE is that it does not support updating access control policies without decrypting the encrypted data.We present a new variant of the CP-ABE scheme called ciphertext policy attribute based proxy re-encryption (CP-ABPRE). The proposed scheme allows to update the access control policy of the encrypted data without decrypting the ciphertext. The scheme uses a semitrusted entity called proxy to re-encrypt the encrypted data according to a new access control policy such that only users who satisfy the new policy can decrypt the data. The construction of our scheme is based on prime order bilinear groups. We give a formal definition for semantic security and provide a security proof in the generic group model.

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“…The concept of our flexible attribute-based encryption is similar to the attribute-based proxy re-encryption [7,9,8].…”

Section: Related Workmentioning

confidence: 99%

Flexible Attribute-Based Encryption

Arita

2012

Information and Communications Security

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Abstract. In this paper, we propose a notion of flexible attribute-based encryption. Flexible attribute-based encryption is a variant of ciphertextpolicy ABE, which allows one to loosen a decryption policy underlying a given ciphertext, if one knows some system-wide trapdoor information, without knowing its underlying plaintext message. We give a concrete construction of the flexible attribute-based encryption that satisfies indistinguishability under the loosening operation, based on the construction of ciphertext-policy ABE given by Bethencourt, Sahai and Waters.

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Attribute-based re-encryption scheme in the standard model

Cited by 21 publications

References 5 publications

A robust cryptographic‐based system for secure data sharing in cloud environments

A robust cryptographic‐based system for secure data sharing in cloud environments

An Encryption Scheme for a Secure Policy Updating

Flexible Attribute-Based Encryption

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