US Patent Issued to International Business Machines on Sept. 23 for "Reducing homomorphic encryption rotations when reshaping a ciphertext" (Israeli Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,425,183, issued on Sept. 23, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Reducing homomorphic encryption rotations when reshaping a ciphertext" was invented by Nir Drucker (Zichron Yaakov, Israel) and Gilad Ezov (Binyamina, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Reducing homomorphic encryption (HE) rotations is provided. Input of a source tensor of HE ciphertexts is received and a mapping of elements from the source tensor to a target tensor. For each ciphertext, a vector of required rotations is computed according to the mapping plus a list of unique rotations. A first and second list of rotations are generate...