Table 1 Common used notations
From: An anonymous authenticated key-agreement scheme for multi-server infrastructure
Common notations | blueElucidations |
|---|---|
\(\mathcal {U}_u\) | \(u_{th}\) user of the system |
\(\mathcal {RC}\) | Centralized registration center of the infrastructure |
\(ID_u\) | Specific user’s identity |
\(PW_u\) | Specific user’s password |
\(B_u\) | Biometric identity of specific user |
\({PID_u}\) | User’s pseudo identity |
\(SC_u\) | Smart card issued to each specific user |
\(\mathcal {S}_j\) | \(j_{th}\) service provider of the infrastructure |
\(ID_j\) | Identity of service provider |
x | Secret key of \(\mathcal {RC}\) |
\(pk_{RC}\) | Public key of \(\mathcal {RC}\) |
s | Secret key of \(\mathcal {S}_j\) |
\(pk_{S_j}\) | Public key of \(\mathcal {S}_j\) |
\(E_{p}(e,f)\) | An elliptic curve |
P | Base point of the elliptic curve \(E_{p}(e,f)\) |
H(.) | Function specified for Bio-hash |
h(.) | One-way digest function of hashing |
\(\Vert\) | Concatenation operator |
\(\oplus\) | XoR operator |