METHOD FOR ENCODING OR DECODING DIGITAL DATA, DATA DISSEMINATING DEVICE AND DATA MANAGING DEVICE

摘要

A method for encoding or decoding digital data, a data dissemination device and a data managing device are provided. The method for encoding digital data includes the following steps. A digital data is received. A sign data is encoded into the digital data through a linear combination operation to obtain an encoded digital data, wherein the size of the digital data is not changed after the encoding process. The encoded digital data is disseminated.