Search results for "virtualization"

Remote Attestation of Software and Execution-Environment in Modern Machines

2015

The research on network security concentrates mainly on securing the communication channels between two endpoints, which is insufficient if the authenticity of one of the endpoints cannot be determined with certainty. Previously presented methods that allow one endpoint, the authentication authority, to authenticate another remote machine. These methods are inadequate for modern machines that have multiple processors, introduce virtualization extensions, have a greater variety of side effects, and suffer from nondeterminism. This paper addresses the advances of modern machines with respect to the method presented by Kennell. The authors describe how a remote attestation procedure, involving…

Creating modern blue pills and red pills

2019

The blue pill is a malicious stealthy hypervisor-based rootkit. The red pill is a software package that is designed to detect such blue pills. Since the blue pill was originally proposed there has been an ongoing arms race between developers that try to develop stealthy hypervisors and developers that try to detect such stealthy hypervisors. Furthermore, hardware advances have made several stealth attempts impossible while other advances enable even more stealthy operation. In this paper we describe the current status of detecting stealth hypervisors and methods to counter them. peerReviewed

Preventing reverse engineering of native and managed programs

2015

One of the important aspects of protecting software from attack, theft of algorithms, or illegal software use is eliminating the possibility of performing reverse engineering. One common method used to deal with these issues is code obfuscation. However, it is proven to be ineffective. Code encryption is a much more effective means of defying reverse engineering, but it requires managing a cryptographic key available to none but the permissible users. The thesis presents a system for managing cryptographic keys in a protected environment and supporting execution of encrypted code. The system has strong security guarantees. In particular, the cryptographic keys are never stored on the target…

Service-Oriented Wireless Virtualized Networks: An Intelligent Resource Management Approach

2022