In the current market economy environment, in order to expand their influence in the market, enterprises have transmitted brand information to consumers through the Internet and other channels. How to do a good job in the promotion and dissemination of brand products, so as to quickly occupy a larger market share, has become a problem that major brand owners must consider, and the emergence of mobile short videos provides new ideas for enterprises to carry out brand marketing. We will focus on the brand marketing of Tik Tok short video network platform, and specifically study the brand marketing characteristics and brand marketing strategies, and strive to effectively play the resource advantages of Tik Tok short video network platform,so as to increase the flow of enterprise brand promotion and lay a good foundation for the development of enterprise brand.

The research study is about the enhancement of symmetric cryptosystem. It gives support to integrity of data and information security, message non-repudiation, and key management scheme of the conventional symmetric cryptosystem. This research applied different techniques and methodologies which were successfully utilized on other cryptosystems. These techniques were also known for its long time implementations in giving support to key management, data integrity verification and message non-repudiation of the symmetric cryptosystem. Also, this study compared the enhanced symmetric cryptosystem to the existing symmetric cryptosystem to emphasize their significant difference.

In the 21st century, the unending improvement of the web, online networking has made approaches to take advantage to streamline the speed of its webpage. Through metatadta extraction, two of the most well-known social networking sites were subjected to experimentation to see the impacts of video compression using standard parameters when uploaded to the said sites. The assessment demonstrates that both sites display keys similarities and differences. It is further explained in the research the different structures amongst the social network that create the outcome