Abstract
Proxy re-encryption is a cryptographic primitive developed to delegate the decryption right from one party (the delegator) to another (the delegatee). In a proxy re-encryption scheme, the delegator assigns a key to a proxy to re-encrypt all messages encrypted with his public key such that the re-encrypted ciphertexts can be decrypted with the delegatee’s private key. We propose a type-and-identity-based proxy re-encryption scheme based on the Boneh-Franklin Identity Based Encryption (IBE) scheme. In our scheme, the delegator can categorize messages into different types and delegate the decryption right of each type to the delegatee through a proxy. Our scheme enables the delegator to provide the proxy fine-grained re-encryption capability. As an application, we propose a fine-grained Personal Health Record (PHR) disclosure scheme for healthcare service by applying the proposed scheme.
Original language | English |
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Title of host publication | Secure Data Management |
Subtitle of host publication | 5th VLDB Workshop, SDM 2008, Auckland, New Zealand, August 24, 2008. Proceedings |
Editors | Willem Jonker, Milan Petković |
Place of Publication | Berlin, Heidelberg |
Publisher | Springer |
Pages | 185-198 |
Number of pages | 14 |
ISBN (Electronic) | 978-3-540-85259-9 |
ISBN (Print) | 978-3-540-85258-2 |
DOIs | |
Publication status | Published - 14 Apr 2008 |
Event | 5th VLDB Workshop on Secure Data Management, SDM 2008 - Auckland, New Zealand Duration: 24 Aug 2008 → 24 Aug 2008 Conference number: 5 |
Publication series
Name | Lecture Notes in Computer Science |
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Publisher | Springer |
Volume | 5159 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Workshop
Workshop | 5th VLDB Workshop on Secure Data Management, SDM 2008 |
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Abbreviated title | SDM |
Country | New Zealand |
City | Auckland |
Period | 24/08/08 → 24/08/08 |
Keywords
- SCS-Cybersecurity
- Proxy re-encryption
- Identity-based encryption
- Personal health records