Digital Copyright Protection Scheme Based on JUNA Lightweight Digital Signatures

With the swift development of computer network and digitalization technology, researches on the digital copyright protection becomes specially important. Images, texts, and common signatures are used as invisible watermarks in traditional digital copyright protection systems, which will lead to a complicated embedding process. In this paper, JUNA(Joint Unit for Numbering Algorithm) Lightweight Digital Signature is acted as a visible watermark and stacked on the lower right corner of the original work in a dominant way. So we needn´t to consider the selection of embedded position. The scheme can simplify the process of the digital copyright protection, meanwhile, ensure the security of the system. The length of the signature is only 80 bits. After the signature is coded by 32-bit system, the length of which is only 16 characters. That means, in the digital copyright protection system, it can implement the requirement of lower space consumption, lower time consumption and lower cost. With the combination of cloud computing concept, the author proposes a digital copyright protection scheme based on JUNA Lightweight Digital Signature, builds a digital copyright protection model, and analyzes the performance of the scheme.