P4A: A New Privacy Model for XML

Abstract

Abstract. We propose a new privacy model for XML data called Privacy for All (P4A) to capture collectors privacy practice and data providers privacy preferences. Through P4A data collectors specify the purpose of data collection along with recipients, retention time and users. Data providers can agree to the collectors' practice or impose their own privacy preferences. P4A offers more flexibility to both data collectors and providers in specifying privacy statements and preferences, including but not limited to full permission, denial, and conditional access to information.A privacy practice defines purposes, recipients, retention period, and uses of data collection. Data providers share their private information with data collectors under restrictions specified by privacy preferences. P4A offers individuals multiple options for restrictions such as conditional access, return results as range intervals for each data item and purpose.

eXtensible Markup Language access control model with filtering privacy based on matrix storage

“…Duta and Barker [12] put forward a privacy model called privacy for all (P4A), which offers more flexibility than www.ietdl.org current approaches, in that it allows unconditional and conditional access. In this model, it provides every leaf node an accurate access code for different access purposes.…”