Data Integrity Framework and Language Support for Active Web Intermediaries

摘要

With the maturity of content adaptation technologies (such as I-CAP and OPES) in web intermediaries and of content personalization in the network, data integrity has already become a key concern when such technologies are deployed. To address this issue, we propose a data integrity framework with the following functionalities: (ⅰ) a server can specify its authorizations, (ⅱ) active web intermediaries can provide value-added services in accordance with the server's intentions, and more importantly, (ⅲ) a client is facilitated to verify the received message with the server's authorizations and intermediaries' footprints. With the actual implementation of our data integrity framework in web (content and proxy) servers and clients, we show the feasibility and practicability of our proposed design through its low performance overhead and possible data (re)use.