What is IPSec

With the increased use of the Internet to share confidential information with other users around the world, the demands to protect this information are also increasing. This is why, today, privacy has found its important place in users' lives. However, Internet users have different interpretations of the meaning of privacy. This fact makes it difficult to find the best way to address the privacy issue. In addition, most of the current standard protocols in use over the Internet do not support the level of privacy that most users expect. The purpose of this chapter is to discuss the best balance between users' expectation and the practical level of privacy to address user privacy needs and evaluate the most important protocols from privacy aspects.