Fully Secure Hierarchical Inner Product Encryption for Privacy Preserving Keyword Searching in Cloud

Zhang, Leyou; Wang, Zhuanning; Mu, Yi; Hu, Yupu

doi:10.1109/3pgcic.2015.63

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…Initially, the IPE scheme was introduced by Katz et al [8]. Hierarchical inner product encryption was also developed having inner product predicates having levels such as predicate or attributes and searching attributes from predicates [22,23,24]. Abdalla et al [25] developed simple inner product encryption using lattices.…”

Section: Inner Product Encryptionmentioning

confidence: 99%

Biometric based Multi-Authority Inner Product Encryption for Electronic Health Record

Exceline¹,

Norman²

2019

EAI Endorsed Trans Perv Health Tech

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Introduction:Attribute-based encryption enhances the security of electronic health records outsourced to the cloud. At the same time, single authority attribute based encryption leads to user privacy breech and attribute management complexity. Multi authority attribute-based encryption enhances user privacy and attribute management, but lacks privacy and integrity of data. Therefore, biometric-based multi-authority inner product encryption is proposed to improve data integrity, data privacy, and user privacy. Objectives: The proposed scheme aims to enhance data integrity, data privacy, and user privacy in cloud-based Electronic Health Record. Methods: An exhaustive literature review has been made related to securing electronic health record outsourced to the cloud and found that data integrity is lacking in existing schemes. So an efficient encryption scheme has been proposed which adopts elliptic curve cryptography to enhance data integrity. The security analysis and computational complexity of the proposed scheme is done and compared with existing schemes. Results: The proposed scheme guarantees data integrity and privacy of the sensitive information stored in the electronic health records. The scheme also satisfied the security requirements user privacy, fine-grained access control, and scalability needed for electronic health record outsourced to the cloud. The computational complexity of the proposed scheme is compared with the existing schemes. The result shows that user access rejection complexity and key generation complexity are comparatively low. Conclusion: Biometric, as a global identifier of the user, could improve data integrity for the electronic health records outsourced to the cloud. Multi-authority Inner Product Encryption hides the access structure, along with the data, could improve data privacy and user privacy. Employing NOT gate in the access structure reduces user access rejection complexity.

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Section: Inner Product Encryptionmentioning

confidence: 99%

Biometric based Multi-Authority Inner Product Encryption for Electronic Health Record

Exceline¹,

Norman²

2019

EAI Endorsed Trans Perv Health Tech

View full text Add to dashboard Cite

show abstract

“…Therefore, by adopting IPE, one can realize multiple kinds of flexible access control using only a single cryptographic primitive. Recently, more applications for IPE have been developed, e.g., privacy-preserving video streaming [21], access control for WBAN [22], secure keyword searching [23] and outsourced data integration [24]. It shows the possibility for the application of IPE in various environments.…”

Section: Introductionmentioning

confidence: 99%

Decentralized Inner-Product Encryption with Constant-Size Ciphertext

Tseng

Gao

2022

Applied Sciences

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With the rise of technology in recent years, more people are studying distributed system architecture, such as the e-government system. The advantage of this architecture is that when a single point of failure occurs, it does not cause the system to be invaded by other attackers, making the entire system more secure. On the other hand, inner product encryption (IPE) provides fine-grained access control, and can be used as a fundamental tool to construct other cryptographic primitives. Lots of studies for IPE have been proposed recently. The first and only existing decentralized IPE was proposed by Michalevsky and Joye in 2018. However, some restrictions in their scheme may make it impractical. First, the ciphertext size is linear to the length of the corresponding attribute vector; second, the number of authorities should be the same as the length of predicate vector. To cope with the aforementioned issues, we design the first decentralized IPE with constant-size ciphertext. The security of our scheme is proven under the ℓ-DBDHE assumption in the random oracle model. Compared with Michalevsky and Joye’s work, ours achieves better efficiency in ciphertext length and encryption/decryption cost.

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Fully Secure Hierarchical Inner Product Encryption for Privacy Preserving Keyword Searching in Cloud

Cited by 2 publications

References 17 publications

Biometric based Multi-Authority Inner Product Encryption for Electronic Health Record

Biometric based Multi-Authority Inner Product Encryption for Electronic Health Record

Decentralized Inner-Product Encryption with Constant-Size Ciphertext

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