Abstract
We propose an anonymous authentication protocol that supports time-bound credentials for an efficient revocation. It is especially suitable for large-scale network in roaming scenario. With our newly designed group signature scheme as a building block, a timestamp can be embedded to user secret key. No expired key can be used to authenticate, and hence naturally revoked users (e.g., due to contract expiration) are not required to be put into the revocation list. This makes our protocol much faster than previous roaming protocols in terms of revocation checking, which is a main part in verification.
Original language | English |
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Article number | 6940299 |
Pages (from-to) | 178-189 |
Number of pages | 12 |
Journal | IEEE Transactions on Information Forensics and Security |
Volume | 10 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
Keywords
- Accountable privacy
- anonymous roaming
- applied cryptography
- authentication
- privacy
- revocation
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Computer Networks and Communications