Modified Ciphertext-Policy Attribute-Based Encryption Scheme with Efficient Revocation for PHR System

Zheng, Haibin; Jie-ming, WU; Wang, Bo; Chen, Jianyong

doi:10.1155/2017/6808190

Cited by 10 publications

(6 citation statements)

References 25 publications

(67 reference statements)

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“…Figure 7 shows the execution time of the decryption process. From the Figure 7, it is clearly observed that the proposed method has lower time to decrypt the data, while comparing with Wang et al, 29 Zheng et al, 30 and Huang et al 15 The decryption time varies with respect to time and the number of access policy in attributes. Decryption time is almost the same in HABE 15 and proposed MCP-HABE scheme.…”

Section: Analysis Of Computational Timementioning

confidence: 84%

“…The execution time in signing phase is shown in Figure 8. From the Figure 8, it is clearly depicted that the proposed method has lower time in the signing process when compared with other three existing methods such as that of Wang et al, 29 Zheng et al, 30 and Huang et al 15 The signing process time is varied with respect to time and the number of access policy in attributes.…”

Section: (C) Execution Time Of Signing Phasementioning

confidence: 92%

“…Likewise, in their work, a scalable revocation strategy was presented by applying proxy reencryption and lazy reencryption in HABE from users to effectively revoke access rights. With explicit personal health record for capacity system, a modified CP‐ABE scheme with an adaptable and expressive access policy for public spaces was introduced by Zheng et al Their plan supports multiauthority situation; without an authentication center, the authorities work freely.…”

Section: Recent Research Work: a Brief Reviewmentioning

confidence: 99%

See 2 more Smart Citations

A highly secured and streamlined cloud collaborative editing scheme along with an efficient user revocation in cloud computing

Narayanan

Muthukumar

2019

Softw Pract Exp

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Summary These days with the expanded fame of cloud computing, the interest for cloud‐based collaborative editing service is rising. The encryption method is utilized to ensure and secure the data, during the collaborative editing process. In the encryption process, the cloud requires more time to work the collaborative editing. This paper proposes an efficient scheme for reducing the encryption burden over the cooperative users, as the possibilities of cooperative users read and write data by means of any gadget. In the proposed scheme, the encrypted file sent by the data owner is split into smaller segments and stored in the cloud by the cloud service provider (CSP) along with specific tags. Once the cooperative user receives and decrypts the file from the CSP, it modifies and encrypts only the modified segment and resends to the CSP. The CSP after verifying the signature replace the original file segment in the cloud with the modified segment based on the tag information. The scheme that is put forward is performed based on the modified ciphertext‐policy hierarchical attribute–based encryption, and the security process is done based on the attribute‐based signature schemes. This work employs a proficient attribute updating method to accomplish the dynamic change of users' attributes, consisting granting new attributes, revoking previous attributes, and regranting formerly revoked attributes. A writer's attributes and keys have been revoked, and the stale information cannot be written.

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Section: Analysis Of Computational Timementioning

confidence: 84%

Section: (C) Execution Time Of Signing Phasementioning

confidence: 92%

Section: Recent Research Work: a Brief Reviewmentioning

confidence: 99%

See 1 more Smart Citation

A highly secured and streamlined cloud collaborative editing scheme along with an efficient user revocation in cloud computing

Narayanan

Muthukumar

2019

Softw Pract Exp

View full text Add to dashboard Cite

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“…Zahra et al [31] employed Shibboleth, also known as the security and cross-domain access control protocol between fog a client and a fog node, to achieve secure communication between nodes, even under uncertain network conditions. Zheng et al [32] utilized attribute-based encryption to enable data sharing over the network. In addition to the removal of attribute matching function, the use of the attribute bloom filter enabled hiding all attributes in the access control structure.…”

Section: Related Workmentioning

confidence: 99%

Multifactor Authentication and Key Management Protocol for WSN-assisted IoT Communication

Ara¹,

Prabhakar²

2019

JTIT

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In this paper a novel multi-factor authentication protocol for IoT applications, relying on enhanced Rabinassisted elliptic curve cryptography, biometric features and time stamping methods, is developed. Furthermore, a fuzzy veriﬁcation algorithm has been developed to perform receiverlevel user veriﬁcation, making computation eﬃcient in terms of computational overhead as well as latency. An NS2 simulation-based performance assessment has revealed that the multifactor authentication and key management models we have proposed are capable of not only avoiding security breaches, such as smart card loss (SCLA) and impersonation attacks, but can also ensure the provision of maximum possible QoS levels by oﬀering higher packet delivery and minimum latency rates.

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“…When a user is revoked, his attributes are revoked as well, a change in key and ciphertext has occurred within the user's group. Besides that, the author of [25] proposed a model where a user is revoked using a proxy for re-encryption. The revocation process is done through two methods: the first method is the attribute revocation, in which a user is revoked by updating the attributes for the rest of users associated in the policy.…”

Section: A Related Workmentioning

confidence: 99%

Securing E-health Data using Ciphertext-Policy Attribute-Based Encryption with Dynamic User Revocation

Kamoona*¹,

Tamimi²

2019

IJRTE

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E-health systems hold a massive amount of medical data that is stored and shared across healthcare service providers to deliver health facilities. However, security and privacy worries increase when sharing this data over distributed settings. As a result, Cryptography techniques have been considered to secure e-health data from unauthorized access. The Ciphertext Policy Attribute-Based Encryption (CP-ABE) is commonly utilized in such a setting, which provides role-based and fine-grained access control over encrypted data. The CP-ABE suffers from the problem of user revocation where the entire policy must be changed even when only one user is revoked or removed from the policy. In this paper, we proposed a CP-ABE based access control model to support user revocation efficiently. Specifically, the proposed model associates a unique identifier to each user. This identifier is added to the policy attributes and removed dynamically when the user is added/revoked. A tree structure (PolicyPathTree) is designed specifically for our model. It can facilitate fast access to policy's attributes during the verification process; The model is analyzed using Information Theory Tools. Results show that our model outperforms other notable work in terms of computational overheads.,

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Modified Ciphertext-Policy Attribute-Based Encryption Scheme with Efficient Revocation for PHR System

Cited by 10 publications

References 25 publications

A highly secured and streamlined cloud collaborative editing scheme along with an efficient user revocation in cloud computing

A highly secured and streamlined cloud collaborative editing scheme along with an efficient user revocation in cloud computing

Multifactor Authentication and Key Management Protocol for WSN-assisted IoT Communication

Securing E-health Data using Ciphertext-Policy Attribute-Based Encryption with Dynamic User Revocation

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