What is Digital Authentication

The communication through wireless medium is very popular to the developed society. More specifically, the use of the internet as well as the use of social networking sites is increasing. Therefore, information security is an important factor during wireless communication. Three major components of it are confidentiality, integrity, and availability of information among authorized users. Integrity level is maintained through various digital authentication schemes. Fuzzy logic is an important soft computing tool that increases the digital watermarking system in various ways. In this chapter, different popular and high secured watermarking schemes using fuzzy logic are analyzed with their mathematical and experimental efficiency. A comparative analysis is developed here with corresponding different parameters.