Table 6 Description of relevant parameter length settings.
From: Lightweight identity authentication and key agreement scheme for VANETs based on SSL-PUF
Parameter | Length(bit) |
|---|---|
Symmetric key | 128 |
Hash value/authentication code | 256 |
ID | 16 |
Challenge c | 256 |
Response r | 256 |
Error correction code u | 256 |
Time stamp Time | 48 |
helper data h | 256 |
Hmac encryption key KC | 128 |
Random number wAB | 128 |
