Abstract: Public key infrastructure is a concept which is discussed often in IT security world. PKI is an infrastructure that uses digital certificates as an authentication mechanism and is built to manage certificates and their associated keys. The mechanism of certifying and revoking of public keys, private key escrow has been explored. But less attention has been given to regulating access to stored keys by others. We know all PKI has support for public key registration, look up, revocation of keys, digital signature etc. In this study we propoed extensions to PKI such as key escrow, protected use of keys. This will allow owners to grant privileges to others to perform various actions on their keys. Authorization is given based on keywords also since all data need not be necessary for the third party.General Category: Network Security.
N.Durai Pandian and C.Chellappan , 2005. Keyword Based Authorisation in PKI . Asian Journal of Information Technology, 4: 986-988.