In this note, we show that a proposed secure broadcasting scheme is insecure. We also present a modified scheme to overcome this weakness. The modified scheme has the extra adva...
Dispute of transactions is a common problem that could jeopardise business. Hence non-repudiation services are essential in business transactions which provide evidence to enable ...
Certificate policies play a central role in public key infrastructures, since they are the basis for the evaluation of trust in binding between a key and a subject in a public key...
Undeniable signature is an intriguing concept introduced by Chaum and Antwerpen at Crypto'89. In 1999, Lee and Hwang presented two group-oriented undeniable signature schemes ...
We study the problem of virtual path layout in ATM networks. Virtual path (VP) and virtual channel are used by the ATM networks in realizing multiplexing, resource management and ...