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:
Dec. 20, 2016
Filed:
Jan. 17, 2013
Amazon Technologies, Inc., Reno, NV (US);
Timothy Craig Worsley, Snoqualmie, WA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
This disclosure describes, in part, systems, devices, and techniques to encrypt address resolution protocol (ARP) messages to prevent a rogue device from accessing information about a local network. In certain embodiments described herein, networked devices are preconfigured with security credentials that allow the devices, possibly via network interface controllers (NICs), to encrypt outgoing ARP messages and decrypt incoming ARP messages. The NICs may listen for encrypted messages that are recognized as being ARP messages. These encrypted messages may include a designator that indicates that the message is an encrypted ARP message. When a NIC receives a message that is indicated as an encrypted ARP message, then the NIC will decrypt the message using secure credentials to obtain the true ARP message. The device will then process the message in accordance standard procedures.