Table 2 Symbols and notations used in Alzahrani et al.’s3 work.
From: A cloud server centric multifactor lightweight authentication scheme for eHealth systems
Notation | Description |
|---|---|
TTPS | Trusted Third Party Server |
PA | Patient |
PH | Physician |
CS | Cloud Server |
p, q | Prime Numbers |
\(E_P\) | Elliptic Curve |
\(PK_{PH}\) | Physician Public Key |
\(ID_P\) | Patient Identity |
\(ID_{CS}\) | Cloud Server Identity |
\(\oplus\) | XOR Operation |
\(\Delta T\) | Matching Function |
\(\parallel\) | Concatenation Function |
SK | Session Secret Key |
\(T_1 \ldots T_{14}\) | Different Timestamps |
\(\lambda\), x, y | Point Over Curve |
k | Secret Key |
h(.) | Hash Function |
\(r_1\ldots r_9\) | Random Numbers |
\(n_1\ldots n_9\) | Random Nonce |
\(PK_{PA}\) | Patient Public Key |
\(PK_{CS}\) | Cloud Public Key |
\(ID_{PH}\) | Physician Identity |
