US Patent Issued to Microsoft Technology Licensing on April 14 for "Fuse based replay protection with aggressive fuse usage and countermeasures for fuse voltage cut attacks" (American, German Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,469, issued on April 14, was assigned to Microsoft Technology Licensing LLC (Rednond, Wash.).

"Fuse based replay protection with aggressive fuse usage and countermeasures for fuse voltage cut attacks" was invented by Ling Tony Chen (Bellevue, Wash.), Felix Domke (Lubeck, Germany), Ankur Choudhary (Redmond, Wash.) and Bradley Joseph Litterell (Bellevue, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A TPM with programmable fuses in an SOC includes an on-die RAM storing a blown-fuse count and a TPM state including a PIN-attempt-failure count and a fuse count, read from off-die NV memory. During initialization, if the blown-fuse count is greater...