Forward security Sample Clauses
Forward security. An adversary should not be correlated to any two communication sessions, and also should not be derived the past messages according to the ongoing session.
Forward security. The confidentiality of the previous secret session key must remain intact, even in the event of a compromise of the current secret session key.
Forward security. Forward security indicates that even if an attacker can obtain the previous group secret key, it cannot calculate the secret keys of the group in future. In other words, when some vehicle leaves the communication range of the RSU, the RSU will regenerate a random number dRSU for the group key generation and recalculate a secret key from the remaining vehicles Di. Thus, the proposed scheme offers forward security.
Forward security. Due to the session key SKij and ▇▇▇▇ is computed by ESi and SDj independently, only the attacker who can break the ECDH assumption can get the random numbers a and b to generate the right session key.
Forward security. To protect the previous communications from being leaked, it is necessary to ensure that even if an attacker obtains the secret key, they cannot obtain the session key used in previous communications.