Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Notation and Description.
| Notations | Description |
|---|---|
| Ui | User ith want to login |
| IDi | ID of user Ui |
| PWi | Password of user Ui |
| IDpt | Patient ID |
| GW | Gateway node |
| IDg | Gateway ID |
| Sn | Sensor node |
| J, K and Q | Gateway secrets |
| EKey[] | Symmetric encryption using shared key. |
| DKey[] | Symmetric decryption using shared key. |
| M | User’s generated nonce |
| h(.) | One-way cryptographic hash function |
| ⊕ | XOR operation |
| || | Concatenation operation |
