Viability of Adaptive Network Security Exercising Tradeoff between Performance and Security

Background: The client-server operations involving the financial transactions are liable to be carried in secure and controlled environment which is provided by Secure Socket Layer protocol in order to vanquish possibility of threats and attacks. In this protocol, the handshake mechanism plays an imperative role, negotiating security policy between client and server. The consolidated security policy between the communicating parties depends upon the level of threat or an attack at an instance subject to change. Objective: Transformation of Secure Socket Layer protocol into the Adaptive model wherein the cryptographic algorithms are selected from the series at runtime depending upon the changing external factors. Further, the reoriented model can be used for web server load management as well. Method: Over-taking control of Renegotiation process by separating it from Web Service Configuration and perform renegotiations based on evaluated performance of cryptographic techniques. Results: Experiments to obtain performance of cryptographic algorithms were done using OpenSSL utility running in Ubuntu-64 bit on 8th generation, i3-8130U runs 2.20 GHz processor and 4 G.B RAM. We enunciated, Data Encryption Standard was slower but ideally secure symmetric, RSA- 512 outnumbers the verifications per second and Message Digest-4 is fastest Symmetric. Conclusions: In this paper, a legacy security system has been reshaped to adapt security at runtime. Further, the offline performance of cryptographic algorithms has been evaluated based on which third party makes decisions. Following this, a trade-off policy between security and performance is formulated such that the model can be optimized easily.