Diffie-Hellman Key Exchange: Extended to Multi-Party key Generation for Dynamic Groups

Global Journal of Computer Science and Technology, Vol 9, No 4 (2009)

Diffie-Hellman Key Exchange: Extended to Multi-Party key Generation for Dynamic Groups

Swapna Donepudi, B SRINIVASA RAO

Abstract

As a result of increased popularity of group-oriented applications and protocols, group communication occurs in many different settings. This paper considers the two-party-Diffie-Hellman (DH) key exchanging technique is extended to generate an efficient contributory multi-party key exchanging technique for a dynamic group. In this technique, a member who acts as a group controller forms two-party groups with other group members and generates a DH-style shared key per group. It then combines these keys into a single multi-party key and acts as a normal group member. The technique has been compared with other techniques and satisfactory results are obtained.

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