Microchip Technology had eight patents in cybersecurity during Q4 2023. The patent describes a device with boot code, non-volatile memory storing mutable code and owner information, and an SRAM with a physically unclonable function region. The boot code generates a unique private key based on owner information and SRAM PUF, inaccessible to mutable code. Mutable code uses this private key to sign data and generate a mutable code private key based on SRAM PUF. GlobalData’s report on Microchip Technology gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Microchip Technology grant share with cybersecurity as a theme is 62% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Sram physically unclonable function (PUF) memory for generating keys based on device owner (Patent ID: US20230351056A1)
The patent filed by Microchip Technology Inc. describes a device with boot code, mutable code, owner information, and an SRAM PUF region. The boot code generates a unique private key based on owner information and the SRAM PUF region, which is not directly accessible by the mutable code. The mutable code uses this private key to sign data and generate a mutable code private key based on the SRAM PUF region. The device also allows for ownership transfer and regeneration of private keys after a reset.
Furthermore, the patent details a method for an electronic device to store owner information and mutable code, generate private keys based on the SRAM PUF region and owner information, and sign data using these keys. The method also involves generating public keys, certificates, and device identity private keys, erasing private keys during resets, and providing signed data to the mutable code. This approach ensures secure data signing, ownership transfer, and key regeneration in electronic devices with enhanced security features based on unique private keys and SRAM PUF technology.
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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.
