Fine-grained conditional proxy re-encryption and application

Yanjiang Yang, Haibing Lu, Jian Weng, Youcheng Zhang, Kouichi Sakurai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

30 Citations (Scopus)


Conditional proxy re-encryption (CPRE) enables delegation of decryption rights, and is useful in many applications. In this paper, we present a ciphertext-policy attribute based CPRE scheme, together with a formalization of the primitive and its security proof. We further propose applying the scheme for fine-grained encryption of cloud data. This application well implements the idea of cloud-enabled user revocation, offering an alternative yet more feasible solution to the user revocation issue when using attribute based encryption over cloud data. Features of the application include little cost in case of user revocation, and high user-side efficiency when users access cloud data.

Original languageEnglish
Title of host publicationProvable Security - 8th International Conference, ProvSec 2014, Proceedings
EditorsSherman S.M. Chow, Joseph K. Liu, Lucas C.K. Hui, Siu Ming Yiu
PublisherSpringer Verlag
Number of pages17
ISBN (Electronic)9783319124742
Publication statusPublished - 2014
Event21st International Conference on Neural Information Processing, ICONIP 2014 - Kuching, Malaysia
Duration: Nov 3 2014Nov 6 2014

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other21st International Conference on Neural Information Processing, ICONIP 2014

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)


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