Thales has patented a method for updating secret data in a credential container, such as a subscriber identity module. The process involves receiving enciphered data from a remote server, deciphering it using specific algorithms and parameters, and replacing the existing authentication key with the new data. GlobalData’s report on Thales gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Thales, Drone swarm control was a key innovation area identified from patents. Thales's grant share as of July 2024 was 68%. Grant share is based on the ratio of number of grants to total number of patents.
Method for updating secret data in credential containers
The patent US12074972B2 outlines a method and system for updating secret data within a credential container, specifically a subscriber identity module (SIM). The method involves the use of a first secret data, which is a subscriber authentication key unique to the SIM, and a credential container that contains a set of secret parameters tailored for a specific network operator. The credential container is designed to execute a first algorithm for symmetric mutual authentication with a remote server. The process includes receiving a second secret data from the server, which is enciphered using a second algorithm and a subset of the secret parameters. The credential container then deciphers this data using a third algorithm and replaces the first secret data with the newly received second secret data.
Additionally, the patent details the technical specifications of the algorithms involved, including the Milenage and TUAK algorithms, and describes the mechanisms for key management and authentication processes between the credential container and the network's Home Subscriber Server. The credential container is capable of sending and receiving messages that facilitate the updating of the authentication key, ensuring secure communication within the network. The patent also specifies that the credential container can take various forms, such as a SIM card or an embedded secure element, and emphasizes the importance of maintaining distinct secret parameters for effective network operator customization. Overall, the invention aims to enhance the security and efficiency of subscriber authentication in communication networks.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
