A CCA-Secure Collusion-Resistant Identity-Based Proxy Re-Encryption Scheme

2018 ◽  
pp. 111-128 ◽  
Author(s):  
Arinjita Paul ◽  
Varshika Srinivasavaradhan ◽  
S. Sharmila Deva Selvi ◽  
C. Pandu Rangan
Keyword(s):  
Encryption Scheme ◽  
Identity Based

Research on Identity-Based Encryption Scheme for Grid Computing System

2014 ◽  
Vol 543-547 ◽  
pp. 3156-3159
Author(s):  
Qing Hai Bai ◽  
Ying Zheng ◽  
Qing Hu Wang ◽  
Guo Li Wei ◽  
Hai Chun Zhao ◽  
...  
Keyword(s):  
Grid Computing ◽  
Data Transmission ◽  
Computing System ◽  
Grid Service ◽  
Encryption Scheme ◽  
Grid System ◽  
Identity Based Encryption ◽  
Diffie Hellman ◽  
Long Run ◽  
Identity Based

Grid system has secure requirements of confidential communication, data integrity and non-repudiation. According to the secure requirements for Grid service, the paper proposed an identity-based encryption scheme for Grid, which can solve a series of problem: the privacy of data transmission, validation of integrity of data, key update after long run time and non-repudiation. The scheme is constructed by bilinear paring on elliptic cures and its security can be reduced to the computational Bilinear Diffie-Hellman assumption. Finally, the authors analyses the security and efficiency of this scheme.

Exploring Type-and-Identity-Based Proxy Re-Encryption Scheme to Securely Manage Personal Health Records

2010 ◽  
Vol 1 (2) ◽  
pp. 1-21
Author(s):  
Luan Ibraimi ◽  
Qiang Tang ◽  
Pieter Hartel ◽  
Willem Jonker
Keyword(s):  
Access Control ◽  
Health Data ◽  
Third Party ◽  
Personal Health ◽  
Encryption Scheme ◽  
Health Records ◽  
Web Based ◽  
The Third ◽  
Access Control Policies ◽  
Identity Based

Commercial Web-based Personal-Health Record (PHR) systems can help patients to share their personal health records (PHRs) anytime from anywhere. PHRs are very sensitive data and an inappropriate disclosure may cause serious problems to an individual. Therefore commercial Web-based PHR systems have to ensure that the patient health data is secured using state-of-the-art mechanisms. In current commercial PHR systems, even though patients have the power to define the access control policy on who can access their data, patients have to trust entirely the access-control manager of the commercial PHR system to properly enforce these policies. Therefore patients hesitate to upload their health data to these systems as the data is processed unencrypted on untrusted platforms. Recent proposals on enforcing access control policies exploit the use of encryption techniques to enforce access control policies. In such systems, information is stored in an encrypted form by the third party and there is no need for an access control manager. This implies that data remains confidential even if the database maintained by the third party is compromised. In this paper we propose a new encryption technique called a type-and-identity-based proxy re-encryption scheme which is suitable to be used in the healthcare setting. The proposed scheme allows users (patients) to securely store their PHRs on commercial Web-based PHRs, and securely share their PHRs with other users (doctors).

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