Secure OTT Service Scheme Based on Blockchain Technology

Due to the popularity of multimedia and constantly growing capacity of network, digital media demanding is increasingly high in last decade. The digital media with copyrighted contents, such as pictures, videos, audios, and 3D-model materials, etc., are more important in today's e-commerce. In recent years, the digital media content service by using OTT (over-the-top) platform is an emerging e-commerce model. The traditional website of the digital media content (DMC) always provides the transaction platform for both content producer and content provider to upload their DMC products. Then, clients (consumers) could browse their interesting products on the website, and download DMCs after payment. However, the transaction of these copyrighted DMCs on the platform is still carried out by means of the traditional payment, e.g. credit cards, debit cards and the ACH (Automated Clearing House). This paper proposes an innovative secure private OTT (p-OTT) platform in which the transaction process could deal with the credible and customizable services by adopting blockchain technology. One of the key features of the blockchain technique is smart contract. Thus, each DMC product could be pre-defined a template of data contract. After negotiation process by using the smart contract, the real data contract (RDC) will be created and outputted by smart contract. According to the predefined template of data contract, the content producer or provider could easily implement his transaction policy. In addition, we design an online authentication key for each member and a shadow key pair for each booked DMC during a transaction period. Therefore, this paper presents a secure OTT model with blockchain technology. Finally, we shows that it is not only a secure OTT platform but also a flexible transaction via preforming smart contract.