Title
Semantic integrity in large-scale online simulations
Abstract
As large-scale online simulations such as Second Life and World of Warcraft are gaining economic significance, there is a growing incentive for attacks against such simulation software. We focus on attacks against the semantic integrity of the simulation. This class of attacks exploits the client-server architecture and is specific to online simulations which, for performance reasons, have to delegate the detailed rendering of the simulated world to the clients. Attacks against semantic integrity often compromise the physical laws of the simulated world—enabling the user's simulation persona to fly, walk through walls, or to run faster than anybody else. We introduce the Secure Semantic Integrity Protocol (SSIP), which enables the simulation provider to audit the client computations. Then we analyze the security and scalability of SSIP. First, we show that under standard cryptographic assumptions SSIP will detect semantic integrity attacks. Second, we analyze the network overhead, and determine the optimum tradeoff between cost of bandwidth and audit frequency for our protocol.
Year
DOI
Venue
2010
10.1145/1667067.1667069
ACM Trans. Internet Techn.
Keywords
DocType
Volume
large-scale online simulation,simulation persona,simulated world,networked virtual environments,Secure Semantic Integrity Protocol,simulation provider,audit frequency,simulation software,Second Life,semantic integrity attack,cryptographic protocols,semantic integrity
Journal
10
Issue
ISSN
Citations 
1
1533-5399
2
PageRank 
References 
Authors
0.38
3
5
Name
Order
Citations
PageRank
S. Jha17921539.19
Stefan Katzenbeisser21844143.68
Christian Schallhart3113756.06
Helmut Veith42476140.58
Stephen Chenney543836.67