Conditional Privacy using Re-encryption
Suriadi, Suriadi, Foo, Ernest, & Smith, Jason (2008) Conditional Privacy using Re-encryption. Information Security Institute.
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Abstract
This paper proposes, for the first time, the use of re-encryption scheme to improve users privacy in a privacy-enhancing system. Firstly, a secure protocol to distribute a re-encryption key from a user A to a service provider B, with the help of n referees, is proposed. Next, this re-encryption key distribution protocol is combined with an existing private credential system to provide a protocol for conditional revocation of private
information. This protocol has a strong accountability property with efficient online performance. It does not assume the existence of a single trusted entity. We tolerate
up to t dishonest referees (t ≤ n − 1), while A and B are dishonest and do not trust each other.
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| ID Code: | 14076 |
|---|---|
| Item Type: | Report |
| Additional Information: | This paper is to appear at IFIP Network and System Security Workshop, 18-19 October 2008, Shanghai, China. |
| Subjects: | Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > OTHER INFORMATION AND COMPUTING SCIENCES (089900) |
| Divisions: | Past > QUT Faculties & Divisions > Faculty of Science and Technology Past > Institutes > Information Security Institute |
| Copyright Owner: | Copyright 2008 (The authors) |
| Deposited On: | 16 Jul 2008 |
| Last Modified: | 09 Jun 2010 23:01 |
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