Patents by Inventor Demetrios Nicholas Matsakis

Demetrios Nicholas Matsakis 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).

  • System and method for authenticating a network time protocol (NTP)
    Patent number: 9621689
    Abstract: System and method for determining the updating time by a server presumed to have a correct time and a client needing a correct time. The server can first transmit an unencrypted signal, which may be signed or unsigned. The server can then later encrypt or sign the same packet it transmitted with a private key and transmit it to the client. After the client receives the unencrypted packet, the client can compute a time difference. However the client doesn't update its time until a follow-up packet is received from the server. If encrypted, the packet is decoded with the server's public key, and the decoded packet is shown identical to the received packet and that the identification bits are the same.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: April 11, 2017
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Demetrios Nicholas Matsakis
  • SYSTEM AND METHOD FOR AUTHENTICATING A NETWORK TIME PROTOCOL (NTP)
    Publication number: 20160043865
    Abstract: System and method for determining the updating time by a server presumed to have a correct time and a client needing a correct time. The server can first transmit an unencrypted signal, which may be signed or unsigned. The server can then later encrypt or sign the same packet it transmitted with a private key and transmit it to the client. After the client receives the unencrypted packet, the client can compute a time difference. However the client doesn't update its time until a follow-up packet is received from the server. If encrypted, the packet is decoded with the server's public key, and the decoded packet is shown identical to the received packet and that the identification bits are the same.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 11, 2016
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Demetrios Nicholas Matsakis