From: Biometrics based authentication scheme for session initiation protocol
Notation | Description |
---|---|
\(E\) | An elliptic curve with large order \(n\) |
\(P\) | A generator on E with large order \(n\) |
\(U_{i}\) | The user \(U_{i}\) |
\(BIO_{i}\) | The user \(U_{i}\)’s biometrics |
\(ID_{i}\) | The user \(U_{i}\)’s identity |
\(pw_{i}\) | The user \(U_{i}\)’s password |
\(S\) | The server \(S\) |
\(x\) | The server \(S\)’s secret key |
\(h()\) | A secure one-way hash function |
‖ | A string concatenation operation |
\(\oplus\) | A exclusive-or(XOR) operation |