Abstract
In this paper we propose a new anonymous password-based authenticated key exchange protocol. The communication cost of our protocol is sub-linear O, which improves a previous one of 0(N) cost, where N is the number of users in the system. We show that the session key is secure against an active adversary in the random oracle model and identity anonymity is secure against a semi-honest adversary in the standard model.
Original language | English |
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Pages (from-to) | 907-920 |
Number of pages | 14 |
Journal | Journal of Information Science and Engineering |
Volume | 25 |
Issue number | 3 |
DOIs | |
State | Published - 1 May 2009 |
Keywords
- Anonymous authentication
- Authenticated key exchange
- Homomorphic encryption
- Password based authentication
- Private information retrieval