US Patent Issued to International Business Machines on Oct. 6 for "Ciphertext nullification operations" (Israeli Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,756,538, issued on Oct. 6, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Ciphertext nullification operations" was invented by Nir Drucker (Zichron Yaakov, Israel), Hayim Shaul (Kfar Saba, Israel) and Gilad Ezov (Binyamina, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Mechanisms are provided for performing ciphertext nullification operations. The mechanisms receive a ciphertext in nullification logic of a cryptographic circuit, where the cryptographic circuit comprises one or more cryptographic functions to be performed on the ciphertext. The mechanisms determine, by the nullification logic, whether the received ciphertex...