Common use of Replay Attack Clause in Contracts

Replay Attack. During the communication between the B-GKAP entities, an attacker might sniff mes- sages in the network and re-transmit sniffed messages for malicious reasons such as Denial of Service (DoS) attacks. To protect against replay attacks, timestamp variable (T ) is added into the protocol messages. Hence, the receiver entity can check T value against replay attack attempts.