Sponsor
Portland State University. Department of Computer Science
First Advisor
Nirupama Bulusu
Date of Publication
Fall 9-26-2013
Document Type
Dissertation
Degree Name
Doctor of Philosophy (Ph.D.) in Computer Science
Department
Computer Science
Language
English
Subjects
User-generated content -- Reliability, Social media -- Reliability, Application software -- Development -- Security measures, Mobile games -- Development -- Security measures, Information technology -- Management
DOI
10.15760/etd.1424
Physical Description
1 online resource (xii, 139 pages)
Abstract
Online applications that are open to participation lack reliable methods to establish the integrity of user-generated information. Users may unknowingly own compromised devices, or intentionally publish forged information. In these scenarios, applications need some way to determine the "correctness" of autonomously generated information. Towards that end, this thesis presents a "trust-but-verify" approach that enables open online applications to independently verify the information generated by each participant. In addition to enabling independent verification, our framework allows an application to verify less information from more trustworthy users and verify more information from less trustworthy ones. Thus, an application can trade-off performance for more integrity, or vice versa. We apply the trust-but-verify approach to three different classes of online applications and show how it can enable 1) high-integrity, privacy-preserving, crowd-sourced sensing 2) non-intrusive cheat detection in online games, and 3) effective spam prevention in online messaging applications.
Rights
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Persistent Identifier
http://archives.pdx.edu/ds/psu/10034
Recommended Citation
Dua, Akshay, "Trust-but-Verify: Guaranteeing the Integrity of User-generated Content in Online Applications" (2013). Dissertations and Theses. Paper 1425.
https://doi.org/10.15760/etd.1424
Included in
Computer Sciences Commons, Digital Communications and Networking Commons, Social Media Commons
