ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,970, issued on Dec. 30, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).
"Cryptographic key hierarchy" was invented by Balaji Ravi Kumar Badam (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The technology described herein generates cryptographic keys for a system on-chip (SoC). The technology uses a cryptographic key hierarchy to generate cryptographic keys as needed and in constant time. The cryptographic key hierarchy uses a cryptographic key from a parent node as an input to the cryptographic function used to generate cryptographic keys associated with child nodes of the parent node. A single cryptographic k...