Abstract:
The comprehensive digitalization of the economic structure and manufac turing systems aka Industry 4.0 has added values in terms of effectiveness,
efficiency, quality, and enhanced performance but with the consequences of
increased susceptibility to security threats. The elements of digital security
generally rely upon data confidentiality. Confidentiality of data, exchanging
through sensor devices is critical in industry 4.0. The integrity of the data
must be guaranteed to attain the definitive potential of Industry 4.0, for this
purpose, a cryptosystem is mandatory which can competently work with lim ited resources. Asymmetric Encryption is computationally impossible for IoT
devices due to resource limitations, and in the current systems, the symmet ric key is hardcoded on the IoT sensors to achieve encrypted communication.
A state of the art system is proposed in this research which is based on
the placement of sensor and key generation server in the same private net work, to generate and share symmetric session keys with the centralized data
management by modifying DHKE protocol. We have accomplished this by
instigating a novel method of fetching seed for session key generation from
the integrated circuit (IC) which is MAXIM DS-2411 in our work. It fetches
the seed whenever it has to create a session secret key. This is a very smart
xi
method which achieved proficient confidentiality with very low resources as
compared to current systems. Comp 128-3 algorithm which is used in GSM
technology is used here to generate session secrets which are then exchanged
with modified DHKE protocol to generate a symmetric session key between
IoT sensor and data management server with the help of a key generation
server.
