Renesas Electronics had one patents in cloud during Q4 2023. The patent filed by Renesas Electronics Corp in Q4 2023 describes a system for secure decryption using virtualization and translation of physical encryption keys. This system includes a key translation memory, a physical key memory, and a key security engine to generate key address translation indexes and retrieve physical encryption keys based on virtual key addresses. GlobalData’s report on Renesas Electronics gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Renesas Electronics grant share with cloud as a theme is 0% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
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Application: Device and method of secure decryption by virtualization and translation of physical encryption keys (Patent ID: US20230333992A1)
The patent filed by Renesas Electronics Corp. describes a system and method for secure decryption through virtualization and translation of physical encryption keys. The system includes components such as a key translation memory, physical key memory, and a key security engine that work together to generate key address translation indexes, retrieve physical mapping addresses, and decrypt frames related to a particular virtual machine. The method involves generating key address translation indexes, obtaining physical mapping addresses from a key translation memory, retrieving physical encryption keys from a physical key memory, decrypting frames, and obtaining key index address maps from a secure register.
The system also includes a secure register, key index address maps, and a key security engine that can decrypt frames corresponding to partition registers. The key security engine generates offsets and virtual address blocks based on start addresses and partition key counts. The key translation memory stores physical mapping addresses corresponding to virtual key addresses, while the physical key memory stores physical encryption keys. The system ensures secure decryption by virtualization and translation of physical encryption keys retrieved by a particular virtual machine, with the key security engine playing a crucial role in the process.
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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.
