Internet security architecture

The article goes into detail about how a big reason the business world has reluctance to "embrace the Internet" as a sensible way of communication is the fear of having security breaches. The most well-known and largely used practice for mitigating these risks is the classic firewall which physically separates the Internet from private networks. However, this paper goes into detail on current security in the realm of cryptography that are available for the infrastructure of the Internet instead of the physical separation technique. It starts out with the beginning internet protocol security architecture including protocols in the Internet Layer and related key management proposals that are introduced then. From there it presents the transport layer security protocol. Finally, the issue of network control and management is discussed. Reading is intended for those with basic understanding of encryption and authentication and key exchange techniques used. "Fear of security breaches has been a major reason for the business world's reluctance to embrace the Internet as a viable means of communication. A widely adopted solution consists of physically separating private networks from the rest of Internet using firewalls. This paper discusses the current cryptographic security measures available for the Internet infrastructure as an alternative to physical segregation. First the IPsec architecture including security protocols in the Internet Layer and the related key management proposals are introduced. The transport layer security protocol and security issues in the network control and management are then presented. The paper is addressed to readers with a basic understanding of common security mechanisms including encryption, authentication and key exchange techniques."