Knox: Privacy-Preserving Auditing for Shared Data with Large Groups in the Cloud

Wang, Boyang; Li, Baochun; Li, Hui

doi:10.1007/978-3-642-31284-7_30

Cited by 140 publications

(112 citation statements)

References 23 publications

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“…Wang, B. Li, and H. Li, [3] in this paper, we propose Knox, a privacy-preserving auditing scheme for shared data with large groups in the cloud. They utilize group signatures to compute verification information on shared data, so that the TPA is able to audit the correctness of shared data, but cannot reveal the identity o f the signer on each block.…”

Section: Literature Surveymentioning

confidence: 99%

A Survey on Multi Owner Data Sharing for Dynamic Groups in the Cloud Securely

Nallamalli¹

2016

IJECS

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Cloud computing is the developing computer paradigm, where data owners can remotely store and modify their data on the premise of pay-as-use manner and enjoy on demand high-quality applications. The fundamental service provided by the Cloud is Data Storage which makes it a primary source for customers to utilize cloud for online data store and share. As it requires low maintenance it provides an economical and efficient solution for sharing group resource among cloud users .But, sharing data in a multi-owner manner while preserving data and identity privacy from an untrusted cloud is still a challenging issue, due to the frequent change of the membership in the multi owner group. To preserve data privacy, a basic solution is to encrypt data files, and then upload the encrypted data into the cloud. Existing solutions usually apply cryptographic methods by disclosing data decryption keys only to authorized users which was a very tedious work. To resolve this problem recently the best efficient method MONA presented for secured multi owner data sharing for dynamic groups in the cloud has been proposed in which a group signature is used so that the revoked member is not able to upload or download files .By including group signature and stateless broadcast encryption techniques, any cloud user can anonymously share data with others .Meanwhile, the storage overhead, length of the signature and the running time of the signing algorithm are independent with the number of group members.

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Section: Literature Surveymentioning

confidence: 99%

A Survey on Multi Owner Data Sharing for Dynamic Groups in the Cloud Securely

Nallamalli¹

2016

IJECS

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“…Similar to [3], [7], we assume that the cloud server is honest but curious. That is, the cloud server will not maliciously delete or modify user data due to the protection of data auditing schemes [17], [18], but will try to learn the content of the stored data and the identities of cloud users.…”

Section: System Modelmentioning

confidence: 99%

Mona: Secure Multi-Owner Data Sharing for Dynamic Groups in the Cloud

Zhang

Wang

et al. 2013

IEEE Trans. Parallel Distrib. Syst.

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228

116

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Abstract-With the character of low maintenance, cloud computing provides an economical and efficient solution for sharing group resource among cloud users. Unfortunately, sharing data in a multi-owner manner while preserving data and identity privacy from an untrusted cloud is still a challenging issue, due to the frequent change of the membership. In this paper, we propose a secure multiowner data sharing scheme, named Mona, for dynamic groups in the cloud. By leveraging group signature and dynamic broadcast encryption techniques, any cloud user can anonymously share data with others. Meanwhile, the storage overhead and encryption computation cost of our scheme are independent with the number of revoked users. In addition, we analyze the security of our scheme with rigorous proofs, and demonstrate the efficiency of our scheme in experiments.

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“…After Oruta, Knox [2] has been introduced with treacibility. While Oruta fails in identify the user on some special occasion, Knox has overcome from it using group signature.…”

Section: Related Workmentioning

confidence: 99%

A Novel Approach for an Enhanced Oruta with Data Freshness

Kapadiya¹,

Prajapati²

2015

IJCA

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Cloud computing has become an emerging service because of the ease of its use. Its vast usage has raised some serious issues. When cloud has become a large storage for the data, the security and integrity have become most serious issues. Users must be concerning with the data stored remotely. Many auditing schemes have been introduced for public auditing which audits data without downloading the whole data. Among them, Oruta is privacy preserving public auditing scheme which uses ring signature that audits data with identity privacy. But Oruta lacks with data freshness, batch auditing and traceability. We have introduced an enhanced scheme which enables data freshness within Oruta. Data freshness is to update data with the latest one.

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Knox: Privacy-Preserving Auditing for Shared Data with Large Groups in the Cloud

Cited by 140 publications

References 23 publications

A Survey on Multi Owner Data Sharing for Dynamic Groups in the Cloud Securely

A Survey on Multi Owner Data Sharing for Dynamic Groups in the Cloud Securely

Mona: Secure Multi-Owner Data Sharing for Dynamic Groups in the Cloud

A Novel Approach for an Enhanced Oruta with Data Freshness

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