Performance Analysis of Secure Call Admission Control in Heterogeneous Networks

The need for security is obviously growing very fast with the dramatic development in computer network communication. It is a fact, that sending information over any public network can be exposed to possible unauthorized access or malicious attacks. It becomes increasingly important to secure the data flow path. IPSec is a suite of protocols that adds security to communications at the IP level. Protocols within the IPSec suite make extensive use of cryptographic algorithms. Since these algorithms are computationally sophisticated, some hardware accelerators are needed to support high throughput. In this paper we propose an IPsec-based secure call admission control (SCAC) with multiple cryptographic accelerators. Our proposed IPsec-based Multifence Secure Call Admission Control in heterogeneous networks enhanced with Malicious Packets Filter (MPF), is a set of technologies and solutions. It enforces security policy and bandwidth compliance on all devices seeking to access network computing resources, in order to limit damage from emerging security threats and to allow network access only to compliant and trusted endpoint devices. This SCAC also provides support for quality of service. High-level simulations and the related results are provided to show the effectiveness of the SCAC.