A Secure Multi-Factor Authentication System Using ElGamal Bakers Map Function in Virtual Private Network

Virtual Private Network (VPN) is the emerging technology facilitates the secure cloud connectivity and remote access, motivates the migration of physical resource of IT applications to the virtual resource. Despite of tremendous applications of virtual private network, the security remains as a major concern, and is highly prune to the varieties of attacks. The existing works attempts to address the security concern, resulting in unchanged status of the security in terms of enhancement. To overcome this concern, this manuscript introduces a Multi-Factor Authentication (MFA) using the low entropy password along with the graphical password authentication system. The security of the graphical password is enhanced using the novel ElGamal bakers map function to and a cipher graphical is generated to communicate over the insecure network. The proposed work is treated under various attack analysis using black box testing process and the robustness is measured.