Table 1 Notation
Notation | Meaning |
|---|---|
\(P\) | A generator for the elliptic group |
\(s\) | A secret key |
\(PK\) | A public key, where \(PK = sP\) |
\(H( \cdot )\) | Biometric hash function |
\(h( \cdot )\) | One way hash function |
\(ID_{X}\) | Identity of \(X\) |
\(B_{P}\) | A biometric password |
\(Cert_{D}\) | The doctor’s certificate issued by a medical authority |
\(T_{Xi}\) | The \(i{\text{th}}\) timestamp of sender \(X\) |
\(T_{Xi}^{\prime }\) | The \(i{\text{th}}\) received message timestamp from sender \(X\) |
\(\Delta T\) | A valid time interval |
\(r_{i}\) | The \(i{\text{th}}\) random number |
\(S_{X}\) | The secret key shared between the public cloud and \(X\) |
\(SEK_{i}\) | The \(i{\text{th}}\) session key |
\(M_{SD}\) | The biomedical signal sensed by a smart device |
\(M_{EMR}\) | The electronic medical record |
\(M_{DINF}\) | The diagnosis information on the smart device |
\(||\) | Concatenation function |
\(A\mathop = \limits^{?} B\) | Determines if \(A\) is equal to \(B\) |
-----> | Secure channel |
──> | Insecure channel |