MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617078583 A) filed by Infineon Technologies AG on June 25, 2026, for Secure Communications Using Pre-Shared Keys And Live Membership.
Inventors include Zeh, Alexander; and Tindell, Kenneth William.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: The described techniques address issues to achieve key agreement without the need to exchange separate key agreement messages and, consequently, meets the stringent starting time requirements for real-time control systems. This is achieved using a group-wide key counter, with each node storing the latest value of this counter that was observed via the last received secured message. This counter value increases monotonically, and nodes maintain synchronization by transmitting this counter value (or a representation of the counter value) in each secured message. The use of key counters may be extended to guard against weak replay attacks via the implementation of a live membership tracking solution, which defines one or more membership groups. Each node within a membership group may request, or "challenge" other nodes with the same membership group at any time to verify their online status, and this online status may be maintained over time.
Disclaimer: Curated by HT Syndication.
