Title
Cherub: Fine-grained application protection with on-demand virtualization.
Abstract
Cherub is an on-demand virtualization mechanism aiming to provide fine-grained application protection in untrusted environments. By leveraging late launch technology, Cherub dynamically inserts a lightweight virtual machine monitor (VMM) under a commodity operating system (OS) when critical pieces of an application code or data are to be processed. The novel design of Cherub with a double-shadowed page table extends VMM level memory protection into application level, such that it can isolate selected memory pages of a target process from the rest and other processes in the same OS environment. With this, Cherub enables fine-grained memory access control and therefore flexible security objectives. Compared to existing approaches, Cherub has the benefits of small code size, low performance overhead, no change to existing applications and commodity OS, and selective protection capability within a single application space. We implement Cherub in Linux and our analysis and evaluation demonstrate its effectiveness and practicality.
Year
DOI
Venue
2013
10.1016/j.camwa.2012.02.001
Computers & Mathematics with Applications
Keywords
Field
DocType
Lightweight virtualization,VMM,On-demand protection
Virtualization,Memory protection,On demand,Code size,Page table,Hypervisor,Access control,Mathematics,Operating system,Embedded system
Journal
Volume
Issue
ISSN
65
9
0898-1221
Citations 
PageRank 
References 
0
0.34
19
Authors
4
Name
Order
Citations
PageRank
Hai Jin16544644.63
Ge Cheng2143.82
Deqing Zou356777.42
Xinwen Zhang469746.90