The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2026
Filed:
Mar. 29, 2024
Amazon Technologies, Inc., Seattle, WA (US);
Vivek Krishnan Devarajan, Seattle, WA (US);
Luis Fernando Gonzalez Fernandez, Seattle, WA (US);
Tuhin Gupta, Seattle, WA (US);
William Bennett, Omaha, NE (US);
Lee Douglas Goodrich, Seattle, WA (US);
Joseph Papa, Seattle, WA (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
Techniques for securing DHCP communications between DHCP servers and client devices in a network to authenticate the devices before providing IP addresses. A client device may store one-time programmable (OTP) seed parameters, and use the OTP seed parameters to derive a unique private key. The private key is used to sign payloads of each DHCP packet sent to the DHCP server. The DHCP server is provided with a public key that verifies signatures made using the private key, and is also provided a list of unique identifiers for client devices that are permitted into the network. The DHCP server uses the public key to verify signatures on DHCP packets, and further verifies that the unique identifier in the DHCP packets is included in the list of expected unique identifiers. Firmware code measurements can be sent in the DHCP packets for the DHCP server to authenticate firmware of the client device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile