Method and apparatus for determining authentication...

G - Physics – 06 – K

Patent

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G06K 9/00 (2006.01)

Patent

CA 2575819

A method is disclosed for determining the authentication capabilities of a supplicant before initiating an authentication conversation with a client (104), for example, using Extensible Authentication Protocol (EAP). In one aspect, the method provides for sending (130), to a supplicant (104) that is requesting access to a computer network (110) subject to authentication of a user (102) of the supplicant (104), a list of first authentication methods (112) that are supported by an authentication server (150); receiving (152), from the supplicant (104), a counter-list of second authentication methods (112) that are supported by the supplicant (104); determining how many second authentication methods in the counter-list match the first authentication methods (154); and performing an authentication policy action based on how many of the second authentication methods match the first authentication methods (156). Policy actions can include blocking access, re-directing to sources of acceptable authentication methods, granting one of several levels of network access, etc (162-170).

L'invention concerne un procédé permettant de déterminer les capacités d'authentification d'un fournisseur avant d'entamer une conversation d'authentification avec un client, à l'aide du protocole d'authentification extensible (EAP), par exemple. Dans un aspect de l'invention, le procédé consiste à transmettre à un fournisseur demandant un accès à un réseau informatique soumis à l'authentification d'un utilisateur du fournisseur une liste de premiers procédés d'authentification pris en charge par un serveur d'authentification ; à recevoir, de la part du fournisseur, une contre-liste de seconds procédés d'authentification pris en charge par le fournisseur ; à déterminer combien des seconds procédés d'authentification de la contre-liste correspondent aux premiers procédés d'authentification ; et à établir une initiative d'authentification sur la base du nombre de seconds procédés d'authentification correspondant aux premiers procédés d'authentification. Les initiatives peuvent consister à bloquer l'accès, à réacheminer vers des sources de procédés d'authentification acceptables, à accorder un niveau d'accès sélectionné au réseau, etc.

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