Patents by Inventor Nancy Cam Winget

Nancy Cam Winget has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9264895
    Abstract: A detection-based defense to a wireless network. Elements of the infrastructure, e.g., access points or scanning-only access points, detect intruders by detecting spoofed frames, such as from rogue access points. Access points include a signature, such as a message integrity check, with their management frames in a manner that enables neighboring access points to be able to validate the management frames, and to detect spoofed frames. When a neighboring access point receives a management frame, obtains a key for the access point sending the frame, and validates the management frame using the key.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: February 16, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Mark Krischer, Nancy Cam-Winget, Sheausong Yang, Ajit Sanzgiri, Timothy Olson, Pauline Shuen
  • Patent number: 9208295
    Abstract: Presented herein are techniques for adding a secure control layer to a distributed communication fabric that supports publish-subscribe (pub-sub) and direct query (synchronization) communication. The secure control layer is configured to perform policy-based authentication techniques to securely manage the exchange of data/information within the communication fabric and enable registration/discovery of new capabilities.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: December 8, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Nancy Cam-Winget, Allan Thomson, Pok Wong, Vanaja Ravi
  • Patent number: 9059925
    Abstract: A method for multicast load balancing in a wireless network having a plurality of access points. The method includes setting a maximum Internet protocol multicast bandwidth for the access points, receiving an admissions control request from a client at one of the access points, and determining whether the admissions control request from the client is for an admitted or unadmitted multicast stream at the access point. The access point is responsive to the admissions control request for the admitted multicast stream by servicing the admitted multicast stream and to the admissions control request for the unadmitted multicast stream by servicing the unadmitted multicast stream where the bandwidth required for the unadmitted multicast stream, plus that portion of the access point bandwidth currently used for all existing downlink multicast streams, does not exceed the maximum internet protocol multicast bandwidth for the access point.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 16, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Robert C. Meier, Stuart Norman, Douglas A. Smith, Nancy Cam Winget
  • Publication number: 20150106617
    Abstract: Techniques are provided for authenticating a subject of a client device to access a software-as-a-service (SaaS) server. A network access device receives a request from a client device to establish a network session and transfers identity information of the subject, the client device and the network session to a session directory database. A request is sent to access an application on a SaaS server. If it does not contain an identity assertion that identifies the subject, the request is redirected to an identity provider device, to provide identity assertion services to the subject. A network session identifier is inserted into the request by a network access device and the request is forwarded to the identity provider device. The identity provider device uses the network session identifier to query the session directory database for the identity information to be used for a security assertion of the subject to the SaaS server.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 16, 2015
    Inventors: Nathan Sowatskey, Nancy Cam-Winget, Susan E. Thomson, David Jones, Morteza Ansari, Klaas Wierenga, Joseph Salowey
  • Publication number: 20150042792
    Abstract: In an example embodiment, there is described herein a location based detection technique that determines whether multiple requests from different addresses, such as a Layer 2 MAC (Media Access Control) address and/or layer 3 IP (Internet Protocol) address are being sent form a single device. In particular embodiments, if the device sends more than a predefined threshold number of requests, those requests can be ignored and/or denied.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 12, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: Mark Krischer, Tom Koenig, Nancy Cam-Winget
  • Patent number: 8949938
    Abstract: Techniques are provided for authenticating a subject of a client device to access a software-as-a-service (SaaS) server. A network access device receives a request from a client device to establish a network session and transfers identity information of the subject, the client device and the network session to a session directory database. A request is sent to access an application on a SaaS server. If it does not contain an identity assertion that identifies the subject, the request is redirected to an identity provider device (IdP), to provide identity assertion services to the subject. A network session identifier is inserted into the request by a network access device and the request is forwarded to the IdP. The IdP uses the network session identifier to query the session directory database for the identity information to be used for a security assertion of the subject to the SaaS server.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 3, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Nathan Sowatskey, Nancy Cam-Winget, Susan E. Thomson, David Jones, Morteza Ansari, Klaas Wierenga, Joseph Salowey
  • Publication number: 20140365512
    Abstract: Presented herein are object filtering techniques that optimize the communication of information over an infrastructure that supports publish-subscribe (pub-sub) and direct query (synchronization) communication. In the object filtering techniques, a single information publisher can share that information in an associated object graph with many different consumers over the infrastructure without sharing the entire object graph.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventors: Allan Thomson, Nancy Cam-Winget, Vanaja Ravi, Pok Wong
  • Publication number: 20140122242
    Abstract: In an example embodiment, an apparatus comprising a transceiver configured to send and receive data and logic coupled to the transceiver. The logic is configured to determine from a signal received by the transceiver whether an associated device sending the signal supports a protocol for advertising available services. The logic is configured to send a request for available services from the associated device via the transceiver responsive to determining the associated device supports the protocol. The logic is configured to receive a response to the request via the transceiver, the response comprising at least one service advertisement and a signature. The logic is configured to validate the response by confirming the signature.
    Type: Application
    Filed: September 24, 2013
    Publication date: May 1, 2014
    Applicant: Cisco Technology, Inc.
    Inventors: David Stephenson, Esteban Raul Torres, Joseph Salowey, Chetin Ersoy, Nancy Cam-Winget
  • Patent number: 8713626
    Abstract: Methods and systems for use in a wireless client that includes one or more wireless network interfaces for communicating with at least one access point wherein the method enables the wireless client to validate the authenticity and integrity of received management frames. The method includes receiving a protected wireless network management frame from an access point verifying a message integrity check (MIC) appended to the protected wireless network management frame. One or more security policies are then conditionally applied based on a failure to verify the MIC.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: April 29, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Nancy Cam-Winget, Mark Krischer, Robert B. O'Hara, Jr.
  • Publication number: 20140109190
    Abstract: Presented herein are techniques for adding a secure control layer to a distributed communication fabric that supports publish-subscribe (pub-sub) and direct query (synchronization) communication. The secure control layer is configured to perform policy-based authentication techniques to securely manage the exchange of data/information within the communication fabric and enable registration/discovery of new capabilities.
    Type: Application
    Filed: June 10, 2013
    Publication date: April 17, 2014
    Inventors: Nancy Cam-Winget, Allan Thomson, Pok Wong, Vanaja Ravi
  • Publication number: 20130333012
    Abstract: A detection-based defense to a wireless network. Elements of the infrastructure, e.g., access points or scanning-only access points, detect intruders by detecting spoofed frames, such as from rogue access points. Access points include a signature, such as a message integrity check, with their management frames in a manner that enables neighboring access points to be able to validate the management frames, and to detect spoofed frames. When a neighboring access point receives a management frame, obtains a key for the access point sending the frame, and validates the management frame using the key.
    Type: Application
    Filed: August 12, 2013
    Publication date: December 12, 2013
    Applicant: Cisco Technology, Inc.
    Inventors: Mark KRISCHER, Nancy CAM-WINGET, Sheausong YANG, Ajit SANZGIRI, Timothy OLSON, Pauline SHUEN
  • Patent number: 8566596
    Abstract: In an example embodiment, an apparatus comprising a transceiver configured to send and receive data and logic coupled to the transceiver. The logic is configured to determine from a signal received by the transceiver whether an associated device sending the signal supports a protocol for advertising available services. The logic is configured to send a request for available services from the associated device via the transceiver responsive to determining the associated device supports the protocol. The logic is configured to receive a response to the request via the transceiver, the response comprising at least one service advertisement and a signature. The logic is configured to validate the response by confirming the signature.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: October 22, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: David Stephenson, Esteban Raul Torres, Joseph Salowey, Chetin Ersoy, Nancy Cam-Winget
  • Patent number: 8543471
    Abstract: In one embodiment, a method includes sending by an endpoint a request for information about available services to a network device; receiving by the endpoint a message from the network device, the message including information associated with a first service provider; determining by the endpoint whether the first address is certified by a trusted third party as being associated with the first service provider; if the first address is certified by the trusted third party, communicating by the endpoint with the first service provider using the information; and, in response to communicating with the first service provider using the information, receiving by the endpoint access to a service from the first service provider through the network device.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: September 24, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Joseph A. Salowey, David Sheldon Stephenson, Nancy Cam-Winget, Chetin Ersoy
  • Patent number: 8533832
    Abstract: A detection-based defense to a wireless network. Elements of the infrastructure, e.g., access points or scanning-only access points, detect intruders by detecting spoofed frames, such as from rogue access points. Access points include a signature, such as a message integrity check, with their management frames in a manner that enables neighboring access points to be able to validate the management frames, and to detect spoofed frames. When a neighboring access point receives a management frame, obtains a key for the access point sending the frame, and validates the management frame using the key.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: September 10, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Nancy Cam Winget, Mark Krischer, Sheausong Yang, Ajit Sanzgiri, Timothy Olson, Pauline Shuen
  • Publication number: 20130111549
    Abstract: Techniques are provided for authenticating a subject of a client device to access a software-as-a-service (SaaS) server. A network access device receives a request from a client device to establish a network session and transfers identity information of the subject, the client device and the network session to a session directory database. A request is sent to access an application on a SaaS server. If it does not contain an identity assertion that identifies the subject, the request is redirected to an identity provider device (IdP), to provide identity assertion services to the subject. A network session identifier is inserted into the request by a network access device and the request is forwarded to the IdP. The IdP uses the network session identifier to query the session directory database for the identity information to be used for a security assertion of the subject to the SaaS server.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 2, 2013
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Nathan Sowatskey, Nancy Cam-Winget, Susan E. Thomson, David Jones, Morteza Ansari, Klaas Wierenga, Joseph Salowey
  • Patent number: 8381268
    Abstract: A system that enables network authorization status to be conveyed to the device requesting network services within or outside the scope of an authentication exchange is provided. The authorization status notification or information can be automatically generated or otherwise triggered by a request from the user or device. For instance, a query can be employed to solicit device authorization status related to a particular service or group of services. Additionally, authorization status notification can be automatically triggered based upon a change in the device authorization state.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: February 19, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Nancy Cam Winget, Joseph A. Salowey, James Edward Burns, Susan Elizabeth Thomson, Hao Zhou
  • Publication number: 20130010669
    Abstract: A method for multicast load balancing in a wireless network having a plurality of access points. The method includes setting a maximum Internet protocol multicast bandwidth for the access points, receiving an admissions control request from a client at one of the access points, and determining whether the admissions control request from the client is for an admitted or unadmitted multicast stream at the access point. The access point is responsive to the admissions control request for the admitted multicast stream by servicing the admitted multicast stream and to the admissions control request for the unadmitted multicast stream by servicing the unadmitted multicast stream where the bandwidth required for the unadmitted multicast stream, plus that portion of the access point bandwidth currently used for all existing downlink multicast streams, does not exceed the maximum internet protocol multicast bandwidth for the access point.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: Robert C. MEIER, Stuart Norman, Douglas A. Smith, Nancy Cam Winget
  • Patent number: 8306027
    Abstract: A method for multicast load balancing in a wireless network having a plurality of access points. The method includes setting a maximum Internet protocol multicast bandwidth for the access points, receiving an admissions control request from a client at one of the access points, and determining whether the admissions control request from the client is for an admitted or unadmitted multicast stream at the access point. The access point is responsive to the admissions control request for the admitted multicast stream by servicing the admitted multicast stream and to the admissions control request for the unadmitted multicast stream by servicing the unadmitted multicast stream where the bandwidth required for the unadmitted multicast stream, plus that portion of the access point bandwidth currently used for all existing downlink multicast streams, does not exceed the maximum internet protocol multicast bandwidth for the access point.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: November 6, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Robert C. Meier, Stuart Norman, Douglas A. Smith, Nancy Cam Winget
  • Patent number: 8305996
    Abstract: A mesh access point that includes an access point profile storing one ore more parameters in non-volatile memory, and a method of using the mesh access point having the access point profile to select and carry out mutual authentication on a wireless mesh network to establish itself to the mesh network using information in the access point profile, and further to provide services to wireless clients according to information in the access point profile. Access point profiles can be pre-configured/configured/updated suitably in order to adapt the mesh access point in a mesh network according to its capabilities and requirements.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 6, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Shabriar I. Rahman, Nancy Cam-Winget
  • Patent number: 8270382
    Abstract: Authentication in a mesh network controlled by a central controller, including using standard IEEE 802.11i mechanisms between a potential child mesh access point (AP) as supplicant and the controller as authenticator. Each mesh AP in the mesh network has a secure tunnel to a controller using a protocol for controlling the mesh AP, including AP capabilities, and a fast roaming method for re-establishing a secure layer-2 link with a new parent mesh AP including, while the mesh AP is a child mesh AP to the first parent mesh AP and has a secure layer-2 link to the first parent mesh AP, caching key information and wireless mesh network identity information in the controller.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: September 18, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Nancy Cam-Winget, Shahriar I. Rahman