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Paper 2010/065
An Anonymous ID-based Encryption Revisited
Zhengjun Cao
Abstract
In 2006, Boyen and Waters proposed an anonymous ID-based encryption. It is impressive that in the scheme the system secret key is a tuple of five numbers. The user's secret key is also a tuple of five elements. The authors did not explain why it should introduce so many parameters. In this paper, we simulate a general attempt to attack the scheme. It shows us which parameters are essential to the scheme and which parameters can be reasonably discarded. Based on the analysis we present a simplified version and an efficient version of the Boyen-Waters scheme. The analyzing technique developed in this paper is helpful to better other cryptographic protocols.
Metadata
- Available format(s)
- Category
- Cryptographic protocols
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Anonymous ID-based encryptionSmooth Transition
- Contact author(s)
- zhencao @ ulb ac be
- History
- 2010-02-08: received
- Short URL
- https://ia.cr/2010/065
- License
-
CC BY