Method for managing an item of security information in a communication network, device, item of equipment for accessing said network, method for managing a connection to said network, corresponding device, item of terminal equipment and computer programs

Abstract

A method for managing first security information to establish a secure connection between a terminal equipment and an access equipment for accessing a communication network. The first security information is associated with a validity period. The method includes: upon expiration of the validity period, obtaining second security information and triggering a deactivation time delay of the first security information; if the terminal equipment is connected to the access equipment, transmitting to the connected terminal equipment a re-authentication command message including at least the second security information and a re-authentication time delay, the time delay expiring at the latest at the end of the deactivation time delay of the first security information; and if a re-authentication request message is received from the terminal equipment before the expiry of the re-authentication time delay, re-authenticating the terminal equipment by using the second security information without the connection being switched off.