US Patent Issued to Passlogy on Sept. 15 for "Network storage for processing cryptographic files while keeping private key secret in key terminal" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,739,113, issued on Sept. 15, was assigned to Passlogy Co. Ltd. (Tokyo).

"Network storage for processing cryptographic files while keeping private key secret in key terminal" was invented by Hideharu Ogawa (Tokyo) and Takeo Suzuki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a storage system (101), a key terminal (141) secretly records a primary private key included together with a primary public key in a primary key pair. An upload terminal (111) encrypts an object file into an encrypted file with a generated common key, encrypts the common key into a first cipher with the primary public key, and stores the encrypted file and the first ciph...