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A privacy-preserving personal health record with searchability and revocability using attribute-based encryption

  • Shuhong DuanEmail author
  • Zhenhua Liu
  • Peilin Zhou
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 2)

Abstract

Online personal health record (PHR) enables patients to store their health records at a cloud server and selectively share them with doctors for convenient medical care, and greatly facilitates the storage and sharing of the data. However, there are some challenges, such as risks of privacy exposure, flexible access, rapid ciphertext retrieval and efficient user revocation, impeding the development of PHR. As for solving the above problems, we propose a privacy-preserving personal health record with search and revocation. In our scheme, we obfuscates the attributes exposed in the access policy. Consequently, this avoids the risk that an attacker may guess what kind of disease the patient gets according to the attributes exposed in the access policy. Instead of an exhaustive search with cryptographic calculations, a simple comparison algorithm is adopted to improve the searching efficiency. Furthermore, our scheme supports dynamic user revocation through the cloud reencrypts normal and unnormal ciphertexts according to the revocation list.

Keywords

Cloud Server Personal Health Record Access Policy Revocation List User Revocation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.School of Mathematics and StatisticsXidian UniversityXi’anP.R. China

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