Self-synchronizing authentication and key agreement protocol
AssigneeAlcatel Lucent
InventorsSemyon B. Mizikovsky, Michael Marcovici
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Abstract
The present invention provides a method of wireless communication with at least one mobile unit and at least one authentication center in a wireless telecommunications network. The method includes generating at least one access request based upon at least one first sequence number associated with the mobile unit and receiving at least one message formed based upon the access request, the message including at least one second sequence number associated with the authentication center, the second sequence number selected to be acceptable to the mobile unit.
Claims27
A method of wireless communication with at least one mobile unit and at least one authentication center, the method comprising:
- generating at least one access request including information indicative of at least a first sequence number associated with the mobile unit, the first sequence number corresponding to an authentication vector;
- and
- receiving at least one message based upon the access request, the message comprising at least a second sequence number selected by the authentication center, the second sequence number selected to be acceptable to the mobile unit based on the first sequence number indicated by said at least one access request so that the second sequence number used by the authentication center is synchronized with the first sequence number used by the mobile unit.
The method of claim of 4, wherein generating the message authentication code comprises generating the message authentication code based upon a pre-provisioned root key, an authentication management field, and at least one of a random number, a mobile-unit-maintained ever-increasing counter, the system time, and a hash of a portion of an access request message.
A method of wireless communication with at least one mobile unit and at least one authentication center, the method comprising:
- receiving at least one access request formed including information indicative of at least a first sequence number associated with the mobile unit, the first sequence number corresponding to an authentication vector;
- and
- providing at least one message based upon the access request, the message including at least a second sequence number selected by the authentication center, and the second sequence number being selected to be acceptable to the mobile unit based on the first sequence number indicated by said at least one access request so that the second sequence number used by the authentication center is synchronized with the first sequence number used by the mobile unit.
A method of wireless communication with at least one mobile unit and at least one authentication center, the method comprising:
- receiving at least one access request including information indicative of at least a first sequence number associated with the mobile unit, the first sequence number corresponding to an authentication vector;
- providing at least a first message based upon the access request;
- and
- receiving, in response to providing the first message, at least a second message including at least a second sequence number selected by the authentication center, the second sequence number selected to be acceptable to the mobile unit based on the first sequence number indicated by said at least one access request so that the second sequence number used by the authentication center is synchronized with the first sequence number used by the mobile unit.
Dependencies are inferred from the claim text.