From: Practical pairing-Free sensor cooperation scheme for cloud-Assisted wireless body area networks
Notation | Description |
---|---|
PCs | Personal Controllers |
HC | Healthcare Center |
Λi | Original Identity Number i |
κi | Password of Sensor i |
s | Master Key of PC |
\(\mathbb {G}_{\mathcal {H}}\) | Cyclic Additive Group |
P | Generator of \(\mathbb {G}_{\mathcal {H}}\) |
ξi | Pseudo-Random Value Generated by i |
Ki | Pseudo-Random Value Generated by CA |
H1,H2,H3,H4 | Secure Hash Function |
\(\mathcal {M}_{i}\) | Transmitting Medical Data for Sensor i |
Encx(y) | Symmetric Encryption of y using x |
Decx(y) | Symmetric Decryption of y using x |
ω | Pseudo-Random Value Generated by PC |
Ppub | CA Public Key |
\(\mathcal {K}\) | Final Group Key |
\(\mathbb {I}\) | Numbers of Sensors |