Cisco Technology, Inc.

Ilan Frenkel

Arthur Zavalkovsky

Alexey Kobozev

Joseph Salowey

Nancy Cam Winget

Jeremy Stieglitz

Mark Krischer

Darran Potter

Hao Zhou

John Zamick

Yoram Snir

Yoram Ramberg

Ilan Bronshtein

Roman Geller

Hau Zhou

A method and system for continuously serving the authentication requests of networked computers is disclosed. The authentication requests of computers are served and the services for the computers are reserved for a predefined time interval. The authentication service for a computer is reserved by an authentication server, which receives authentication requests of the computer.

Method and system for continuously serving authentication requests

A method and implementation is disclosed for secure communication between two or more parties. A secure tunnel is established between parties using an encryption algorithm. An authentication process is performed between parties over the secured tunnel. The provisioning of credentials is thereafter performed between parties.

Protected dynamic provisioning of credentials

Automatically re-authenticating a computing device seeking access to a network or a resource. A method comprises forwarding a request received from the computing device to an authentication device to enable the authentication device to authenticate the computing device using a full-authentication mechanism. State information related to authenticating the computing device is created from authenticating the computing device. The state information is received and stored. For example, an authenticator device that forwarded the initial authentication request from the computing device to the authentication device receives and stores the state information. The computing device is re-authenticated using the stored state information without again contacting the authentication device.

Method and apparatus for re-authentication of a computing device using cached state

Verifying revocation status of a digital certificate is provided in part by a receiver verifying a security certificate for a sender. In an embodiment, an approach comprises receiving a first security certificate associated with the sender and storing the security certificate in a location accessible to the receiver; updating the first security certificate in the location accessible to the receiver if the first security certificate is changed or revoked; receiving a second security certificate from the sender when identity of the sender needs to be verified; comparing the second security certificate to the first security certificate; and confirming the sender's identity only if the second security certificate matches the first security certificate for the sender.

Method and apparatus for verifying revocation status of a digital certificate

A method and apparatus for verifying revocation status of a digital certificate is provided. The invention operates in part by a receiver verifying a security certificate for a sender. In various embodiments the steps to accomplish this include receiving a first security certificate associated with the sender and storing the security certificate in a location accessible to the receiver; updating the first security certificate in the location accessible to the receiver if the first security certificate is changed or revoked; receiving a second security certificate from the sender when identity of the sender needs to be verified; comparing the second security certificate to the first security certificate; and confirming the sender's identity only if the second security certificate matches the first security certificate for the sender.

A method is disclosed for providing multiple authentication types within an authentication protocol that supports a single type of authentication for a client in communication with an authorization server over a network. One or more authentication request packets compliant with an authentication protocol are sent to the client. Each of the packets comprises a type value that specifies multiple authentication, and a data field having a value that is structured in compliance with the authentication protocol. Each of the packets is associated with one of a plurality of different authentication conversations with the client. A plurality of responses is received from the client for each of the authentication conversations. The sending and receiving steps are repeated until results are determined for the authentication conversations. The client is authenticated based on results of each of the plurality of authentication conversations. Embodiments provide multiple Extensible Authentication Protocol (EAP) authentication methods.

Method and apparatus for providing multiple authentication types using an authentication protocol that supports a single type

A method and apparatus is provided for retrieving and storing quality of service policy management information using a directory service in a manner that enforces read/write consistency and enables read/write concurrency. A directory information tree manager is created and stored in the directory service. One or more directory information trees are created in the directory service in association with the directory information tree manager. Each directory information tree is associated with a sub-tree that represents quality of service policy information, and each directory information tree has a validity period value. When a process needs quality of service policy management information, the system determines which of the directory information trees is a currently active directory information tree. The QoS information is retrieved from the currently active directory information tree only during a time period within the validity period value thereof.

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Tel Aviv, Israel

Ilan Frenkel