Abstract
In Ciphertext-Policy Attribute-Based Encryption (CP-ABE), a user secret key is associated with a set of attributes, and the ciphertext is associated with an access policy over attributes. The user can decrypt the ciphertext if and only if the attribute set of his secret key satisfies the access policy specified in the ciphertext. Several CP-ABE schemes have been proposed, however, some practical problems, such as attribute revocation, still needs to be addressed. In this paper, we propose a mediated Ciphertext-Policy Attribute-Based Encryption (mCP-ABE) which extends CP-ABE with instantaneous attribute revocation. Furthermore, we demonstrate how to apply the proposed mCP-ABE scheme to securely manage Personal Health Records (PHRs).
Original language | English |
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Title of host publication | Information Security Applications |
Subtitle of host publication | 10th International Workshop, WISA 2009, Busan, Korea, August 25-27, 2009, Revised Selected Papers |
Editors | Heung Youl Youm, Moti Yung |
Place of Publication | Berlin |
Publisher | Springer |
Pages | 309-323 |
Number of pages | 15 |
ISBN (Electronic) | 978-3-642-10838-9 |
ISBN (Print) | 978-3-642-10837-2 |
DOIs | |
Publication status | Published - 17 Dec 2009 |
Event | 10th International Workshop on Information Security Applications, WISA 2009 - Busan, Korea, Republic of Duration: 25 Aug 2009 → 27 Aug 2009 Conference number: 10 |
Publication series
Name | Lecture Notes in Computer Science |
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Publisher | Springer Verlag |
Volume | 5932 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Workshop
Workshop | 10th International Workshop on Information Security Applications, WISA 2009 |
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Abbreviated title | WISA |
Country/Territory | Korea, Republic of |
City | Busan |
Period | 25/08/09 → 27/08/09 |
Keywords
- METIS-266429
- SCS-Cybersecurity
- EWI-17827
- IR-71113