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Discrete Dynamics in Nature and Society
Volume 2014 (2014), Article ID 478985, 7 pages
http://dx.doi.org/10.1155/2014/478985
Research Article

Research on Dynamic Integrity Measurement Model Based on Memory Paging Mechanism

Zhengzhou Institute of Information Science and Technology No. 307, Henan 450004, China

Received 2 November 2013; Accepted 10 December 2013; Published 9 January 2014

Academic Editor: Guoliang Wei

Copyright © 2014 Chaowen Chang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In order to solve the existed problems of dynamic integrity measurement method, a dynamic integrity measurement model based on Memory Paging Mechanism is proposed in this paper. The model takes memory pages of executable subjects as measurement objects. When the pages are scheduled into memory, the measurement points are inserted, the pages are measured, and their integrities are verified. The model is able to insure the integrity and trust of each executable page and assure that the integrity of the whole executable subjects is not destroyed. To verify this model, XEN hypercall mechanism is used to acquire executable subjects’ pages scheduled into memory, and the integrity measurement and verification codes are put into hypercall handler. Accordingly, dynamic integrity measurement to executable subjects is implemented.