Patents by Inventor David Lazarov

David Lazarov 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: 11930356
    Abstract: This document describes a three-party cryptographic handshake protocol in a wireless network in which a sighter receives, from a beacon, a packet including an exponentiation of a random value and a proxy value and generates an end-to-end encrypted ephemeral identifier (E2EE-EID) from the exponentiation of the random value and the proxy value. The sighter generates a message for an owner, selects a private key, and computes an exchanged key using the private key and the E2EE-EID. The sighter extracts a common symmetric key from the exchanged key, encrypts the message using the common symmetric key, and transmits the encrypted message to the owner.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: March 12, 2024
    Assignee: Google LLC
    Inventors: Marcel M. M. Yung, David Lazarov
  • Publication number: 20230132742
    Abstract: This document describes methods, devices, systems, and means to ensure end-to-end encryption of location information that is forwarded through a potentially untrustworthy cloud service that serves to forward the location information from a sighting device to an owner of a sighted device. The end-to-end encryption of location information preserves the privacy of location information that is provided by sighter devices that are not associated with the owner as the location information traverses network nodes from the sighter to the owner.
    Type: Application
    Filed: April 5, 2021
    Publication date: May 4, 2023
    Applicant: Google LLC
    Inventors: Marcel M.M. Yung, David Lazarov
  • Publication number: 20220124491
    Abstract: This document describes a three-party cryptographic handshake protocol in a wireless network in which a sighter receives, from a beacon, a packet including an exponentiation of a random value and a proxy value and generates an end-to-end encrypted ephemeral identifier (E2EE-EID) from the exponentiation of the random value and the proxy value. The sighter generates a message for an owner, selects a private key, and computes an exchanged key using the private key and the E2EE-EID. The sighter extracts a common symmetric key from the exchanged key, encrypts the message using the common symmetric key, and transmits the encrypted message to the owner.
    Type: Application
    Filed: April 5, 2021
    Publication date: April 21, 2022
    Applicant: Google LLC
    Inventors: Marcel M. M. Yung, David Lazarov
  • Patent number: 9692762
    Abstract: The disclosed embodiments provide systems, methods, and apparatus for efficient detection of fingerprinted content and relate generally to the field of information (or data) leak prevention. Particularly, a compact and efficient repository of fingerprint ingredients is used to analyze content and determine the content's similarity to previously fingerprinted content. Some embodiments employ probabilistic indications regarding the existence of fingerprint ingredients in the repository.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 27, 2017
    Assignee: Websense, LLC
    Inventors: Roy Barkan, David Lazarov, Yevgeny Menaker, Lidror Troyansky
  • Publication number: 20150381626
    Abstract: The disclosed embodiments provide systems, methods, and apparatus for efficient detection of fingerprinted content and relate generally to the field of information (or data) leak prevention. Particularly, a compact and efficient repository of fingerprint ingredients is used to analyze content and determine the content's similarity to previously fingerprinted content. Some embodiments employ probabilistic indications regarding the existence of fingerprint ingredients in the repository.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Inventors: Roy Barkan, David Lazarov, Yevgeny Menaker, Lidror Troyansky
  • Patent number: 9130972
    Abstract: The disclosed embodiments provide systems, methods, and apparatus for efficient detection of fingerprinted content and relate generally to the field of information (or data) leak prevention. Particularly, a compact and efficient repository of fingerprint ingredients is used to analyze content and determine the content's similarity to previously fingerprinted content. Some embodiments employ probabilistic indications regarding the existence of fingerprint ingredients in the repository.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: September 8, 2015
    Assignee: WEBSENSE, INC.
    Inventors: Roy Barkan, David Lazarov, Yevgeny Menaker, Lidror Troyansky
  • Publication number: 20110035805
    Abstract: The disclosed embodiments provide systems, methods, and apparatus for efficient detection of fingerprinted content and relate generally to the field of information (or data) leak prevention. Particularly, a compact and efficient repository of fingerprint ingredients is used to analyze content and determine the content's similarity to previously fingerprinted content. Some embodiments employ probabilistic indications regarding the existence of fingerprint ingredients in the repository.
    Type: Application
    Filed: May 24, 2010
    Publication date: February 10, 2011
    Applicant: WEBSENSE, INC.
    Inventors: Roy Barkan, David Lazarov, Yevgeny Menaker, Lidror Troyansky