METHOD AND APPARATUS FOR GENERATING ENCRYPTED SIGNATURE BASED ON LATTICES, AND METHOD AND APPARATUS FOR RESTORING ENCRYPTED SIGNATURE BASED ON LATTICES

摘要

Disclosed is a method for generating an encrypted signature based on lattices. According to an embodiment of the present invention, the method for generating an encrypted signature based on lattices comprises the steps of: setting public variables, and generating a public key and a private key for a data transmitter and a data receiver based on the set public variables and a base generation function; using the public variables, the private key of the data transmitter, object data to be transmitted, and a signature generation function to generate a signature of the data transmitter; and using the public key of the data receiver, the signature of the data transmitter, and the object data to generate an encrypted signature including a signature value for the data transmitter as ciphertext for the data to be transmitted.;COPYRIGHT KIPO 2016