ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,756, issued on Nov. 25, was assigned to Unisys Corp. (Blue Bell, Pa.).
"System and method for file integrity with file-based attributes" was invented by Michael T Kain (Blue Bell, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A processor-based method for securing files through a persistent signature includes selecting file contents; selecting a file header associated with the file contents; selecting a private key, a certificate identifier and a hash algorithm identifier; creating an encrypted hash of the file contents and file header using the hash algorithm and private key; and creating a persistent, independent signature for the file content...