ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,712,722, issued on Aug. 18, was assigned to Infineon Technologies AG (Neubiberg, Germany).
"Ratchet-based key management" was invented by Abhijit Ambekar (Munich) and Laurent Heidt (Sauerlach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device may include a cryptographic accelerator configured to perform a cryptographic operation. The device may include a key derivative function (KDF) component configured to receive a ratchet-based key management system (RKMS) key and perfect forward secrecy (PFS) information, and generate a key based on the RKMS key and the PFS information. The device may include a ratchet-based key management system (RKMS...