US Patent Issued to Tata Consultancy Services on Oct. 7 for "Method and system for a lattice-based homomorphic proxy re-encryption scheme" (Indian Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,858, issued on Oct. 7, was assigned to Tata Consultancy Services Ltd. (Mumbai, India).

"Method and system for a lattice-based homomorphic proxy re-encryption scheme" was invented by Arinjita Paul (Thane, India), Rajan Mindigal Alasingara Bhattachar (Bangalore, India) and Imtiyazuddin Shaik (Hyderabad, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure a method for a lattice-based homomorphic proxy re-encryption scheme. Conventional methods are attribute based and the attribute-based encryption schemes employ very expensive operations and generate long ciphertexts and secret keys (whose sizes also increase linearly with the si...