Patents by Inventor George Bogdan Alexandru

George Bogdan Alexandru 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).

  • Autonomous key update mechanism with blacklisting of compromised nodes for mesh networks
    Patent number: 10212141
    Abstract: Various embodiments described herein relate to network key manager which is configured to manage keys in nodes in the network, wherein the network key manager including a memory configured to store an update data structure; a processor configured to: determine which nodes are blacklisted; generate the update data structure of volatile private keys for each node that is not blacklisted, wherein the volatile private key is based upon secret information associated with the node and an index, wherein the volatile private key is used for the indexth key update; determine a neighbor node of the network key manager; remove the volatile private key for the neighbor node from the update data structure; encrypt the resulting update data structure and a new network key with the private key for the neighbor node to produce an encrypted message; and send the encrypted message to the neighbor node.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: February 19, 2019
    Assignee: NXP USA, Inc.
    Inventors: Andrei Catalin Frincu, George Bogdan Alexandru
  • Autonomous Key Update Mechanism with Blacklisting of Compromised Nodes for Mesh Networks
    Publication number: 20170324716
    Abstract: Various embodiments described herein relate to network key manager which is configured to manage keys in nodes in the network, wherein the network key manager including a memory configured to store an update data structure; a processor configured to: determine which nodes are blacklisted; generate the update data structure of volatile private keys for each node that is not blacklisted, wherein the volatile private key is based upon secret information associated with the node and an index, wherein the volatile private key is used for the indexth key update; determine a neighbor node of the network key manager; remove the volatile private key for the neighbor node from the update data structure; encrypt the resulting update data structure and a new network key with the private key for the neighbor node to produce an encrypted message; and send the encrypted message to the neighbor node.
    Type: Application
    Filed: October 19, 2016
    Publication date: November 9, 2017
    Inventors: Andrei Catalin Frincu, George Bogdan Alexandru