Research Article
A Lattice-Based Authentication Scheme for Roaming Service in Ubiquitous Networks with Anonymity
Table 1
Notations and definition.
| Notation | Definition |
| n | Dimensions of polynomial rings in NTRU | p | A small positive prime integer, usually 2 or 3 | q | A positive integer used to reduce the coefficients of polynomial | | One-way hash function | | The true identity of communication entity | SID | The anonymous identity of MU | IM | The identification of MU | | Set of polynomials f over | | Set of polynomials over | | Set of polynomials z over | | Inverse of polynomial | | Inverse of polynomial | | The public key of communication entity | | The polynomial over | | The polynomial over | | The random polynomial chosen from | | The session key of communication entity and |
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