Abstract: Disclosed is a method for managing the connections between a secure element and a server of a communication network, the secure element being incorporated in a host device. The method includes the following steps: —determination of a theoretical time period between two consecutive instants of connection, —determination of a real time period between two consecutive instants of connection between the secure element and the server, —comparison of the determined theoretical time period with the determined real time period, and if the determined theoretical time period is different from the determined real time period: —determination of a new theoretical time period.

Abstract: Disclosed is a method for managing the connections between a secure element and a server of a communication network, the secure element being incorporated in a host device. The method includes the following steps: —determination of a theoretical time period between two consecutive instants of connection, —determination of a real time period between two consecutive instants of connection between the secure element and the server, —comparison of the determined theoretical time period with the determined real time period, and if the determined theoretical time period is different from the determined real time period: —determination of a new theoretical time period.

Abstract: A portable electronic entity includes an interface (11) to a host station and communication elements for executing a VoIP communication application between the portable electronic entity (100) thus connected to the host station (SH) and a communication server (SER) connected to the host station (SH) via a communication network (NET). The entity (100) further includes elements for securing the VoIP application for making secure the execution of the VoIP application between the portable cryptographic entity (100) and the communication server (SER), in accordance with a selected cryptographic mode.