Research Article
A Lightweight Secure User Authentication and Key Agreement Protocol for Wireless Sensor Networks
| Notation | Description |
| GWN | Gateway node | Ui | ith user | Sj | jth sensor node | IDi | Ui’s identity | PWi | Ui’s password | SIDj | Sj’s identity | XGWN | GWN’s secure password key | Kj | Sj’s secret password key | h () | A secure one-way hash function | Bio | Ui’s biometric | | GWN’s private key | Xpub | GWN’s public key; Xpub = | Ti | Timestamp, i = 1, 2, …. | Ek ()/Dk () | The symmetric encryption/decryption function using key k | G | An elliptical curve group | P | The generator of G | E/Fp | An elliptic curve E defined on a finite field Fp with order p. |
|
|