A New Security Architecture for TCP/IP Protocol Suite

With the rapid growth and usage of Internet, network security becomes a major issue in the field of research. TCP and IP are the twoprotocols, which is basis for today’s Internet. IPv4 is the Internet protocol that is replaced with IPv6, which comes with the build mechanismcalled IPsec for security. But it lacks security in the application layer of TCP/IP Protocol suite. So there is a need for security mechanismespecially for applications in the application layer. This paper identifies some of the security problems related to IPv6 and presents a newarchitecture for TCP/IP protocol suite. Our proposed architecture includes a layer called security layer, which guarantees security to Applicationlayer using a protocol Application layer security protocol (ALSP). Simulation results show that the proposed architecture provides strict securitywith minimum overhead in the terms of processing