ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,120, issued on May 19, was assigned to Renesas Electronics Corp. (Tokyo).
"Cryptographic key installation method" was invented by Takashi Kitagawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cryptographic key installation method of installing a customer key in a semiconductor device, wherein the semiconductor device includes a decryption functional unit that has a secret key installed therein in advance, and when the customer key encrypted by a public key corresponding to the secret key is installed, decrypts the encrypted customer key by the secret key installed in advance to generate a customer key, wherein an encryption device on a use...