STREAM CIPHER-BASED IMAGE SECURITY METHOD USING ZERO-WATERMARKING, SERVER, AND COMPUTER READABLE RECORDING MEDIUM

摘要

A stream cipher-based image security method using zero-watermarking comprises the steps of: acquiring information relating to an image including a first to an Nth (N is a natural number larger than or equal to 1) image frame; generating, on the basis of a counter mode of a block cipher, ciphered image frames corresponding to the first to the Nth image frame, respectively; and generating watermark keys corresponding to the first to the Nth image frame, respectively.