Extended Diffie-Hellman Algorithm for Key Exchange and Management

Akhil Kaushik

Abstract


Since the publication of Diffie-Hellman algorithm
for two-party key exchange in 1976, the concept of key
exchange over the insecure communication channel has
revolutionized totally. The purpose of algorithm is used to
enable users to security exchange a key that can be used for
subsequent encryption. The ability to dynamically and
publicly establish a session key for secure communication
between groups of participants is a foundation of many
secure group applications, such as conference calls,
distributed computation, and distributed databases. The very
idea is based on using arithmetic calculations to transmit the
shared session keys using a cost-effective and easy
mechanism. The Diffie-Hellman algorithm provides better
security against attacks like man-in-the-middle attacks. Due
to such superior features Diffie-Hellman algorithm has been
revised many times by several authors. Our proposed
algorithm is also based on Diffie-Hellman algorithm, which
uses a new technique for sharing session keys. The proposed
“Extended Diffie-Hellman Algorithm” uses a digital image to
produce random numbers for exchanging keys over insecure
network.

Keywords


Diffie-Hellman Algorithm(DHA), True Random Numbers(TRNs), Key exchange, Extended Diffie-Hellman Algorithm(XDHA).

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