Abstract: A method is provided for controlling access by a series of users to a space and/or particular service. The method includes the following steps for each of the users: requesting access to the space and/or service by the user, issuing an access authorization or denial; opening of an access to the space or the service, if an access authorization was issued; estimating a waiting period prior to accessing the space and/or service when the opening is delayed; and issuing to the user at least one piece of information representative of the waiting period. The estimation step takes account of a number of users having already passed through the access and still waiting in the space and/or the service.

Abstract: The invention concerns a remote electronic payment system comprising an authentication device (300) with an authenticating server in a remote payment system, the authentication being performed prior to a transaction carried out by a user. The device (300) is characterised in that it comprises: means (310) for receiving a first authentication request, from the authenticating server; means (330) for verifying the validity of the authentication request; means (350) for validation, by the user, of the transaction; means (370) for controlling said user's identity; and means (380) for sending a return message of authentication, to the authenticating server (900).

Abstract: A method is provided for controlling access by a series of users to a space and/or particular service. The method includes the following steps for each of the users: requesting access to the space and/or service by the user, issuing an access authorization or denial; opening of an access to the space or the service, if an access authorization was issued; estimating a waiting period prior to accessing the space and/or service when the opening is delayed; and issuing to the user at least one piece of information representative of the waiting period. The estimation step takes account of a number of users having already passed through the access and still waiting in the space and/or the service.

Abstract: The invention concerns a remote electronic payment system comprising an authentication device (300) with an authenticating server in a remote payment system, the authentication being performed prior to a transaction carried out by a user. The device (300) is characterised in that it comprises: means (310) for receiving a first authentication request, from the authenticating server; means (330) for verifying the validity of the authentication request; means (350) for validation, by the user, of the transaction; means (370) for controlling said user's identity; and means (380) for sending a return message of authentication, to the authenticating server (900).

Abstract: The invention concerns a remote electronic payment system comprising an authentication device (300) with an authenticating server in a remote payment system, the authentication being performed prior to a transaction carried out by a user. The device (300) is characterised in that it comprises: means (310) for receiving a first authentication request, from the authenticating server; means (330) for verifying the validity of the authentication request; means (350) for validation, by the user, of the transaction; means (370) for controlling said user's identity; and means (380) for sending a return message of authentication, to the authenticating server (900).