Abstract

Port Knocking is an important concept to secure services provided by the servers. By a predefined port knocking sequence server identify whether the request is a legitimate request for a service. This paper presents an analyzing the network security concept of Port Knocking and assesses their suitability as firewall authentication mechanisms for opening network ports or performing certain actions on servers. This paper are developing and evaluating the performance of a new proposed modified hybrid port knocking (MHPK) technique with proposed encryption/decryption technique. Prime concerned of the proposed work is to prevent different – different types of port attack and fulfill the entire security requirement for network. Proposed technique is the combination of four concepts, these are port knocking (PK), proposed Symmetric key encryption/decryption, steganography and mutual authentication. Basically it is the enhanced modification of hybrid port knocking therefore; it is referred to as the modified hybrid port-knocking (MHPK) technique. The improvements of this development over existing port knocking mitigate some threats, but various concerns still exist. Development aimed at the enterprise quality will need to address additional needs. In conclusion, port knocking deserves future consideration and can be a valuable layer in defense-in-depth. The performance of the proposed technique is calculated by measuring some parameter like security, and average authentication time, which is showing the superiority of the proposed technique as compare to existing technique.

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