Research Article
Applying Semigroup Property of Enhanced Chebyshev Polynomials to Anonymous Authentication Protocol
Table 1
Some of the notations used in Chen et al.'s protocol.
| Symbol | Definition |
| | Identities of users and , respectively | | Identity of the authentication server | | The large primes and , a generator of group with the order | | The long-term key of , and | | Components of authentication information and | | Random number privately chosen by and , respectively | | Components of session key, where and | | Collision-free one-way hash function | | Evidence generated by user for user |
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