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If the requirements of the eduroam policy are followed, it should be possible to provide sufficient evidence to government agencies to allow them to pinpoint a malicious user, thereby protecting the service provider. The requirements are:

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From this chain the realm of the offender and the time of login are known. This should be provided to government agencies when required. For example, the information could be: the malicious user is someone from restena.lu who logged in at April 1, 2007, 12:01:45.3221.

Note well: the eduroam service definition document only obliges the Identity Provider and FLR infrastructure to keep logs of all authentications that took place and maintain a synchronised time source. It is in the best interest of a Service Provider to keep sufficient log information themselves though to make sure that the link in steps 3 and 4, above, can be made to trace a user login efficiently. However, even if the SP does not keep the data, it is possible to retrieve the information from FLR logs if need be.

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For the record, the points of the eduroam service definition deliverable DS5.1.1 in question are:

6.2.1: technical contact for federation
6.3.1, Confederation member servers, Bullet 5: logging of authentication attempts
6.3.1, Confederation member servers, Bullet 2: reliable time source
6.3.2, Service Providers, Bullet 2: sufficient layer-2 to layer-3 logging information
6.3.2, Identity Providers, Bullet 4: logging of authentication attempts

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