A Ramp Model for Distributed Key Distribution Schemes

✍ Scribed by Carlo Blundo; Paolo D'Arco; Carles Padró

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 609 KB
• Volume: 6
• Category: Article
• ISSN: 1571-0653
• DOI: 10.1016/s1571-0653(04)00156-8

✦ Synopsis

A Key Distribution Center (KDC) of a network is a server enabling private communications within groups of users. The center provides the secret keys for encrypting and decrypting the messages. A Distributed Key Distribution Center (DKDC) is a set of servers that jointly realizes a Key Distribution Center. In this paper we introduce a ramp model for unconditionally secure Distributed Key Distribution Center. We show l o wer bounds on the amount of information needed to setup and manage such a DKDC and describe a simple protocol meeting the bounds.