Research Article
Anonymous Authentication and Key Agreement Scheme Combining the Group Key for Vehicular Ad Hoc Networks
| Notation | Description |
| E | An elliptic curve | G | An additive group based on E | P | A generator of G | p, q | Large prime numbers | s, Ppub | Private key and public key pairs of the system | X, Px | Group key and group public key pairs | h0, h1, h2, h3,h4,h5 | Six secure hash functions | IDj | Identity of the RSU | sj, Pj | Private key and public key pairs of the RSU | si, Pi | Private key and public key pairs of the vehicle | RIDi | Real identities of the vehicle | PIDi | Pseudonym of the vehicle | Ti, Tm | Timestamp | sk | Session key between RSU and the vehicle | Mi | Traffic-related message |
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