DOUBLE TRAP DOOR CHAMELEON HASH FUNCTION BASED SECURITY FOR FOG IoT NETWORK

Networking

A new industrial revolution driven by digital data, computation, and automation is arriving. Human activities, industrial processes, and research lead to data collection and processing on an unprecedented scale, spurring new products, services, and applications, as well as new business processes and scientific methodologies. The cloud which cannot be constantly connected to the sensors, extends to an edge based paradigm-fog. However security is the major issue in this edge based service. Solution to this is by using expensive cryptographic methods like role based and access based control, which almost degrades the speed of the system. This paper comes up with a solution to this critical situation with a novel cryptographic method. Double trap door hash function is used in conjunction with the paillier homomorphic encryption to increase the security and decrease the delay. This generates two hash functions which gives a double layer security in preserving the credentials being transferred. By comparing the two hash values, the MDMS can validate the integrity and authenticity of the data sent by the concentrator. The working of the cryptosystem is tested in NS2.35 with an open environment , which experiences high amount of forgery attacks and security breaches.

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