DOCSLIB.ORG

Robert John Askwith, B. Se. (Hons. )

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Robert John Askwith, B. Se. (Hons. ) An Architecture for User Privacy in Mobile Networks Robert John Askwith, B. Se. (Hons. ) A thesissubmitted in partial fulfillment of the requirementsof Liverpool John Moores University for the degree Doctor of Philosophy School of Computing and Mathematical Sciences October 2000 Acknowledgments I would first of all like to expressgreatest thanks to my principal supervisorMadiid Merabti. Tbroughoutthe period of this researchhis advice, encouragementand all round harassmenthas enabledmy progress.I would also like to thank my second supervisorQi Shi for being patient enoughto examinetechnical details with a fine toothcomb.Also, thanksto my third supervisorKeith Whiteleyfor supportin the early stagesof the project. I would like to thank all my colleaguesin the departmentof Computing and MathematicalSciences for continuedsupport, especially those fellow researcherswho madeit more fun than it would otherwisehave been, Damien Gregory, David Gresty, Tom Berry, Ewan Smith. The funding for this projectwas providedby LiverpoolJohn MooresUniversity to whom I am most grateful. Away from the office I would like to thank all those friends and family who have sufferedmy inability to avoid technical discussion.It was my father who initially persuadedme to pursuean academiccareer - like fatherlike son,thanks Dad. The list of friends is too long but special mention is required of SatinderDharewal, John Clearyand SimonTruss. Finally I must thank my wife, Sarah,whose seeminglyendless sacrifice made the climb considerablyeasier and the motivation more meaningful. I have a sneaking suspicionSarah may be the most pleasedout of all to seethis pagein print. ii Abstract During the 1990's the use of electroniccommunications became a part of everyday life throughthe explosionof both mobile telephonyand Internetuse. The next decade promises further rapid development,with multimedia mobile networking and the convergenceof existing networks. These developmentshave not been without impediment,concern over privacy being importantamongst these. Privacy in a mobile environmentinvolves the protectionof messagecontent, identification and location, aswell as serviceuse behaviour. In addition,a userrequires this protectionagainst not only partiesoutside the networkbut alsofrom the partiesoperating the networkitself. In this thesiswe have addressedthe securityand privacy requirementswithin mobile networks. A survey of existing literature shows that these requirementsare not currently satisfied.In responseto this we presentthe developmentof an architecture, the Mobile Network Privacy Architecture(MNPA). The MNPA proposestwo novel physical componentsand two new protocols to perform important network tasks, namely location update and secure billing for services.The two new physical componentsare the PrivacyRouting Capability(PRC), and the PrivacyToken Issuing Authority (PTIA). The PRC facilitates network anonymityby enablinguntraceable messagetransport between any two hosts. The PTIA is a third party authority that facilitates privacy-enhancedprotocols through the issuing of privacy tokens to the networkof eachuser. Our analysisand evaluationof the architectureshows that the MNPA protocolsand componentsmeet the requirementsfor achievingprivacy. The analysisfocuses on potential attackson the system,including those of collusion betweenparties. This leadsus to examinethe most pressingassumption, that of trust betweenthe user and the variouscomponents, which must be satisfiedin orderto complementthe technical measuresin place. Prototypingexperiments are discussedand it is shown how the abovesystem can be implemented.Finally we presenta seriesof proposalsfor further researchwork that have beenraised by this work, suchas user interfacesfor privacy, dataaccess for law enforcementand the preventionof denial of serviceattacks within the MNPA. iii Table of Figures Figure 2.1. The Cellular Concept 20 ............................................................. Figure 2.2. Wireless Network Architecture 22 .................................................. Figure 4.1. Mobile Network Privacy Architecture (MNPA) 70 .............................. Hosts Using PRC 77 Figure 4.2. Example Route of a MessageBetween Two the ....... 4.3. Example Configuration Six PTIA Elements 84 Figure of .............................. Figure 6.1. Communications Within Prototype MNPA 122 the .............................. iv Table of Contents CHAPTER 1: INTRODUCTION 1 ....................................................................... 1.1 DISTRIBUTEDSYST'EMS 2 .................................................................................. 1.2 MOBILENETWORKING 4 ................................................................................... 1.3 COMPUTERSECURITY 6 .................................................................................... 1.4 PRivAcy 7 ........................................................................................................ 1.5 THESISAIMS 8 .................................................................................................. 1.6 NOVELASPECTS OF THISWORK 10 ................................................................. 1.7 SUMMARY 12 ................................................................................................... 1.8 THESISSTRUCTURE 14 ..................................................................................... CHAPTER 2: BACKGROUND 15 ........................................................................ 2.1 COMPUTERNETWORKS BASICS 15 .................... .. ..... .... ... ................................. 2.2 M013ILECOMMUNICATIONS 17 ............................................ .... ........................ 2.2.1First SecondGeneration Systems 18 and ................................................. ZZ2 Third GenerationSystems Beyond 18 and ............................................... 2.2.3 MobilelWireless Networking Concepts 19 ................................................ 2.3 COMPUTER COMMUNICATIONSECURITY 23 AND ............................................. 2.3.1 Security Basics 23 ... .. .. .............................................................................. 2.3.2 Computer Security 24 ............................................................................... 2.3.3 Cryptography 27 ....................................................................................... 2.3.4 Network Security 35 ................................................................................. 2.3.5 Electronic CommerceSecurity 37 ............................................................ 2.4 USERPRIVACY 38 ............................................................................................ 2.4.1 "at is Privacy 39 anyway?..................................................................... 2.4.2 Privacy Enhancing Technologies 41 ........................................................ 2.4.3 The Legal Political Landscape 43 and ..................................................... 2.5 SUMMARY 45 ................................................................................................... CHAPTER 3: SECURITY AND PRIVACY REQUIREMENTS IN MOBILE COMMUNICATIONS 46 ....................................................................................... 3.1 SYSTEMSECURITY: THE SERVICEPROVIDERS PERSPECTIVE 46 ....................... 3.1.1 Authentication Users 47 of ....................................................................... 3.1.2 Encryption Network Traffic 48 of ............................................................. 3.1.3 Equipment Security 49 .............................................................................. 3.2 USERPRivAcy: THE USERSPERSPECTIVE 50 ................................................... 3.2.1 Anonymity, Pseudonymity and Different Levels of Privacy Protection50 3.2.2 Protectionfrom External Attacks 52 ........................................................ 3.2.3 Protectionfrom the Network 52 ............................................................... 3.2.4 Law Enforcement Privacy Negotiation 53 and ......................................... 3.3 ExisTTNGSOLUTIONS 55 ................................................................................... 3.3.1 Privacy in General Networks 55 .............................................................. 3.3.2 Privacy in Mobile Communications 56 .................................................... 3.4 SUMMARY 64 ................................................................................................... CHAPTER 4: THE MOBILE NETWORKS PRIVACY ARCHITECTURE66 4.1 THE ARCHITECTURE 66 .................................................................................... 4.1.1 Assumptions 66 ......................................................................................... 4.1.2 Architecture Overview 69 ......................................................................... 4.1.3 Mobility Management 71 .......................................................................... 4.1.4 Accounting 73 ........................................................................................... 4.1.5 Private Communications 73 ..................................................................... 4.2 PRIVACY ROUTING CAPABILITY (PRC) 74 ....................................................... 4.2.1 Overview 75 .............................................................................................. 4.2.2 Detailed Operation 76 .............................................................................. 4.3
Load more

Recommended publications
  • UC Santa Barbara UC Santa Barbara Electronic Theses and Dissertations
    UC Santa Barbara UC Santa Barbara Electronic Theses and Dissertations Title A Web of Extended Metaphors in the Guerilla Open Access Manifesto of Aaron Swartz Permalink https://escholarship.org/uc/item/6w76f8x7 Author Swift, Kathy Publication Date 2017 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA Santa Barbara A Web of Extended Metaphors in the Guerilla Open Access Manifesto of Aaron Swartz A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in Education by Kathleen Anne Swift Committee in charge: Professor Richard Duran, Chair Professor Diana Arya Professor William Robinson September 2017 The dissertation of Kathleen Anne Swift is approved. ................................................................................................................................ Diana Arya ................................................................................................................................ William Robinson ................................................................................................................................ Richard Duran, Committee Chair June 2017 A Web of Extended Metaphors in the Guerilla Open Access Manifesto of Aaron Swartz Copyright © 2017 by Kathleen Anne Swift iii ACKNOWLEDGEMENTS I would like to thank the members of my committee for their advice and patience as I worked on gathering and analyzing the copious amounts of research necessary to
    [Show full text]
  • People Are Either Too Fake Or Too Real'': Opportunities And
    Behavior in Online Communities CHI 2017, May 6–11, 2017, Denver, CO, USA “People Are Either Too Fake or Too Real”: Opportunities and Challenges in Tie-Based Anonymity Xiao Ma Nazanin Andalibi Louise Barkhuus Jacobs Institute, Cornell Tech College of Computing and The IT University of New York, NY, USA Informatics, Drexel University Copenhagen [email protected] Philadelphia, PA, USA Copenhagen, Denmark [email protected] [email protected] Mor Naaman Jacobs Institute, Cornell Tech New York, NY, USA [email protected] ABSTRACT affected social interactions and dynamics in offline and on- In recent years, several mobile applications allowed individ- line environments [11, 27]. Anonymity allows people to feel uals to anonymously share information with friends and con- less constrained by the expectations of their everyday iden- tacts, without any persistent identity marker. The functions of tities [3, 25], which in turn allows more candid and honest these “tie-based” anonymity services may be notably differ- self-expressions [1, 43]. Anonymity also leads users to dis- ent than other social media services. We use semi-structured close more information [52], which may result in positive interviews to qualitatively examine motivations, practices and emotional outcomes for the person disclosing [45]. On the perceptions in two tie-based anonymity apps: Secret (now de- other hand, the lack of attribution and responsibility in anony- funct, in the US) and Mimi (in China). Among the findings, mous environments can encourage malicious behaviors such we show that: (1) while users are more comfortable in self- as trolling [33] and cyberbullying [5, 6, 34]. It is no wonder disclosure, they still have specific practices and strategies to that society in general, and HCI researchers in particular, have avoid or allow identification; (2) attempts for de-identification been fascinated with the topic of anonymity.
    [Show full text]
  • Trolls Under the Bridge: Anonymous Online Comments and Gatekeeping in the Digital Realm
    TROLLS UNDER THE BRIDGE: ANONYMOUS ONLINE COMMENTS AND GATEKEEPING IN THE DIGITAL REALM _______________________________________ A thesis presented to the faculty of the graduate school at the University of Missouri-Columbia ___________________________________________________________ in partial fulfillment of the requirements for the degree, master of arts ______________________________________________ by NOELLE M. STEELE Ryan J. Thomas, Thesis Supervisor DECEMBER 2013 The undersigned, appointed by the dean of the graduate school, have examined the thesis entitled TROLLS UNDER THE BRIDGE: ANONYMOUS ONLINE COMMENTS AND GATEKEEPING IN THE DIGITAL REALM presented by Noelle M. Steele, a candidate for the degree of master of arts, and hereby certify that, in their opinion, it is worthy of acceptance. __________________________________________ Dr. Ryan J. Thomas __________________________________________ Dr. Tim Vos ___________________________________________ Professor Joy Mayer ____________________________________________ Dr. Christina Wells ACKNOWLEDGEMENTS A special thank you to Sarah Smith-Frigerio for her unending encouragement, faithful guidance and witty responses that kept matters light when they might otherwise have been stressful. Many a graduate student would have lost their way without her prompt attention to every issue that cropped up and tireless dedication to resolving the problem. Endless thanks to my thesis chair, Dr. Ryan J. Thomas, for his attention to detail and refusal to allow me to settle for anything less than the most polished piece of work I could possibly produce. I owe the completion of this research to his persistence and enthusiasm for the project. And to the remainder of my thesis committee – Drs. Tim Vos and Christina Wells and Professor Joy Mayer – thank you for believing in my rough research idea and challenging me to refine it from the very beginning.
    [Show full text]
  • The Community Industry: an Analysis of Reddit and /R/Socialism
    THE COMMUNITY INDUSTRY: AN ANALYSIS OF REDDIT AND /R/SOCIALISM Richard Babb A Dissertation Submitted to the Graduate College of Bowling Green State University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2021 Committee: Radhika Gajjala, Advisor Samuel T McAbee, Graduate Faculty Representative Lara Lengel Yanqin Lu © 2021 Richard Babb All Rights Reserved iii ABSTRACT Radhika Gajjala, Advisor Social media is an increasingly important space for community formation and interactions. Coinciding with the rise of social media has been an increasing interest in leftist ideologies once outside the mainstream. This analysis seeks to understand the social media site Reddit.com’s enabling and constraining features on the community /r/socialism. Using the communicative theory of identity and Marxist media theory not only to look at Reddit and /r/socialism’s relationship, but five key functions of a media: capital-economic, media sales and media market function, commodity circulation, domination, and the audience. Employing a mixed-methods approach enabled various data to be analyzed and relationally understood. Qualitative content analysis was used to examine user’s salient topics and their uses for the community. Survey methods were deployed to the community to gather demographic data on the /r/socialism community and user opinions on the group’s relationship with Reddit. Finally, secondary documents were analyzed to provide greater context to the other findings. Findings from the content analysis of salient subjects showed a preference for contemporary capitalist critique, socialist quotations, and class issues. However, topics impacting women and other minority groups were light to nonexistent.
    [Show full text]
  • Defamation Law in the Age of the Internet: Young People’S Perspectives
    DEFAMATION LAW IN THE AGE OF THE INTERNET: YOUNG PEOPLE’S PERSPECTIVES Defamation Law in the Internet Age June 2017 Commissioned by the Law Commission of Ontario Prepared by Jane Bailey Valerie Steeves The LCO commissioned this paper to provide background research for its Defamation Law in the Internet Age project. The views expressed in this paper do not necessarily reflect the views of the LCO. DEFAMATION LAW IN THE AGE OF THE INTERNET: YOUNG PEOPLE’S PERSPECTIVES Prepared by: Jane Bailey1 and Valerie Steeves2 Prepared for: Law Commission of Ontario Final Report 15 June 2017 Table of Contents ACKNOWLEDGMENTS ........................................................................................................................................ 3 EXECUTIVE SUMMARY ....................................................................................................................................... 4 INTRODUCTION .................................................................................................................................................. 10 I. THE MEANING AND VALUE OF REPUTATION .............................................................................. 13 A. Understanding Online Reputation ..................................................................................................... 13 B. Creating an Online Reputation ............................................................................................................ 18 C. Avoiding Reputational Harm...............................................................................................................
    [Show full text]
  • LEAF:A Privacy-Conscious Social Network-Based Intervention Tool for IPV Survivors
    LEAF:A Privacy-conscious Social Network-based Intervention Tool for IPV Survivors Balaji Palanisamy Sheldon Sensenig James Joshi Rose Constantinoy School of Information Sciences, University of Pittsburgh ySchool of Nursing, University of Pittsburgh fbpalan, sms233, jjoshi, [email protected] Abstract—Destructive relationship behavior directed from one acronym stands for lending encouragement, affirming futures. party to another in domestic relationships, both physical and These embody the vision for a system to provide support to emotional, is a common problem. When the behavior occurs those in difficult situations. in intimate relationships this is called intimate partner violence (IPV). There are many resources available to survivors of IPV LEAF is primarily focused on providing a secure privacy- in getting out of abusive situations, but the information is not conscious social-network based support system for survivors readily available and is not always easy to find. Furthermore, of intimate partner violence (IPV). We note that destructive once the survivor has escaped from the abusive situation, there relationship behavior directed from one party to another in are not many support type resources that are easily accessible, domestic relationships, both physical and emotional, is a especially to people lacking transportation and to those residing in rural or suburban areas. LEAF is being created to address the common problem. When the behavior occurs in intimate issues that arise from limits in physical community support. The relationships this is called intimate partner violence. LEAF acronym stands for lending encouragement, affirming futures. aims to provide an easily accessible support system to those These embody the vision for a system to provide support to those who have escaped from the abusive situation, especially to in difficult situations.
    [Show full text]
  • The Loopix Anonymity System Ania M
    The Loopix Anonymity System Ania M. Piotrowska and Jamie Hayes, University College London; Tariq Elahi, KU Leuven; Sebastian Meiser and George Danezis, University College London https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presentation/piotrowska This paper is included in the Proceedings of the 26th USENIX Security Symposium August 16–18, 2017 • Vancouver, BC, Canada ISBN 978-1-931971-40-9 Open access to the Proceedings of the 26th USENIX Security Symposium is sponsored by USENIX The Loopix Anonymity System Ania M. Piotrowska Jamie Hayes Tariq Elahi University College London University College London KU Leuven Sebastian Meiser George Danezis University College London University College London Abstract cent leaks of extensive mass surveillance programs1, ex- posing such meta-data leads to significant privacy risks. We present Loopix, a low-latency anonymous commu- Since 2004, Tor [20], a practical manifestation of nication system that provides bi-directional ‘third-party’ circuit-based onion routing, has become the most popu- sender and receiver anonymity and unobservability. lar anonymous communication tool, with systems such Loopix leverages cover traffic and Poisson mixing—brief as Herd [33], Riposte [11], HORNET [10] and Vu- independent message delays—to provide anonymity and vuzela [46] extending and strengthening this paradigm. to achieve traffic analysis resistance against, including In contrast, message-based architectures, based on mix but not limited to, a global network adversary. Mixes and networks, have become unfashionable due to perceived clients self-monitor and protect against active attacks via higher latencies, that cannot accommodate real-time self-injected loops of traffic. The traffic loops also serve communications. However, unless cover traffic is em- as cover traffic to provide stronger anonymity and a mea- ployed, onion routing is susceptible to traffic analysis at- sure of sender and receiver unobservability.
    [Show full text]
  • Is Reporting Facebook Posts Anonymous
    Is Reporting Facebook Posts Anonymous Maurits remains pug-nosed: she scrimmages her hysterias greys too covetously? Unpaired Barrett always bureaucratizedinveigh his dynamos ahead, if Swenis Carter is indicative ergative andor designate phantasmagoric each. Garwood enough? never wisecracks any eluate While i mentioned how overtaxed the condition of facebook posts Atheism is reported who to post, you for all you need. Submit the Tip Bureau of Alcohol Tobacco Firearms and. 10 tips tricks and secrets to accomplish about Facebook Messenger. East district attorney. A 'drop down arrow' should begin giving off a menu option of report the image species or comment You can unfriend or prosecute a nail from Facebook Click on. It down millions of facebook is reporting anonymous posts being sexually assaulted by submitting an appropriate investigatory response, it has so correct drones? As posting something online posts included charged comments by doing this post pics from the anonymous should grow a broad range of hate uk. While many people in checking the reporting is facebook anonymous posts that context of it and frustrated me? Oh god or post, posts or legitimate enough participants who use. Data from participants who reported using Facebook at least once on day. Facebook apologises after employee's anonymous post talks. Is anonymous This noon I reported some dumb corona virus meme on our mutual community. If found report them for posting a baby of bright child Facebook. Because that many social media platforms offer anonymity and because disgruntled users can so we issue threats that i may continue no intention of acting on.
    [Show full text]
  • Behind the Mask: a Computational Study of Anonymous' Presence On
    Behind the Mask: A Computational Study of Anonymous’ Presence on Twitter Keenan Jones, Jason R. C. Nurse, Shujun Li School of Computing & Kent Interdisciplinary Research Centre in Cyber Security (KirCCS) University of Kent, UK fksj5, j.r.c.nurse, [email protected] Abstract Interestingly, there are a significant number of Twitter accounts claiming some form of affiliation with Anony- The hacktivist group Anonymous is unusual in its public- mous. From these accounts’ interactions and posts, one can facing nature. Unlike other cybercriminal groups, which rely begin to establish a sense of how the structure and mes- on secrecy and privacy for protection, Anonymous is preva- sage of Anonymous as a group is presented. Accordingly, lent on the social media site, Twitter. In this paper we re- examine some key findings reported in previous small-scale in this research we aim to use the findings of our large- qualitative studies of the group using a large-scale compu- scale study of Anonymous Twitter accounts to examine the tational analysis of Anonymous’ presence on Twitter. We contentions of smaller-scale, often interview-focused stud- specifically refer to reports which reject the group’s claims ies of the group. Such studies reject claims by the group of leaderlessness, and indicate a fracturing of the group af- to its nebulous, leaderless nature (Uitermark 2017; Olson ter the arrests of prominent members in 2011-2013. In our 2013). Furthermore, they suggest that Anonymous fractured research, we present the first attempts to use machine learn- as the result of the arrests of key affiliates (Goode 2015; ing to identify and analyse the presence of a network of over Olson 2013); a factor which again refutes the argument of 20,000 Anonymous accounts spanning from 2008-2019 on a decentralised group structure.
    [Show full text]
  • The Anonymous Post-Office Protocol
    Proceedings on Privacy Enhancing Technologies 2016; 2016 (2):1–20 Nethanel Gelernter, Amir Herzberg, and Hemi Leibowitz Two Cents for Strong Anonymity: The Anonymous Post-office Protocol Abstract: We introduce the Anonymous Post-office Pro- tency; to achieve this, Tor design prefers reducing la- tocol (AnonPoP), a practical strongly-anonymous mes- tency to improving anonymity, and is vulnerable to glob- saging system. AnonPoP design combines effectively ally eavesdropping adversaries. Several works show that known techniques such as (synchronous) mix-cascade Tor is vulnerable even to weaker attackers, e.g., off-path and constant sending rate, with several new tech- attackers [28] and malicious servers/clients [3] [10]. niques including request-pool, bad-server isolation and The popularity of Tor indicates that it provides per-epoch mailboxes. AnonPoP offers strong anonymity valuable service to many users and scenarios, despite its against strong, globally eavesdropping adversaries, that limited guarantees for anonymity (and its non-negligible may also control multiple AnonPoP’s servers, even all- overhead). However, there are also many scenarios and but-one servers in a mix-cascade. Significantly, Anon- users that require stronger anonymity properties, even PoP’s anonymity holds even when clients may occa- at the cost of somewhat higher latency and overhead. sionally disconnect; this is essential to support mobile Several works proposed protocols for stronger clients. anonymity guarantees, as compared to Tor. However, AnonPoP is affordable, with monthly costs of 2¢ per existing research on strong anonymity is mostly imprac- client, and efficient with respect to latency, communi- tical. Indeed, many seem to believe that it is infeasible cation, and energy, making it suitable for mobile clients.
    [Show full text]
  • Opaak: Using Mobile Phones to Limit Anonymous Identities Online
    Opaak: Using Mobile Phones to Limit Anonymous Identities Online Gabriel Maganis∗, Elaine Shi†, Hao Chen∗, Dawn Song† University of California, Davis∗ University of California, Berkeley† ABSTRACT 1. INTRODUCTION Trust and anonymity are both desirable properties on the Trust and anonymity are often conflicting goals for Inter- Internet. However, online services and users often have to net users. One one hand, users wish to evaluate the trust- make the trade off between trust and anonymity due to the worthiness of online reviews and recommendations and wish lack of usable frameworks for achieving them both. We pro- to only establish relations with other trustworthy users. On pose Opaak, a practical anonymous authentication frame- the other hand, users often wish to remain anonymous and work. Opaak enables its users to establish identities with protect their online privacy. For example, users do not want different online services while ensuring that these identities their activities being tracked by the websites they visit or cannot be linked with each other or their real identity. In by online advertisement companies. addition, Opaak allows online service providers to control Our online privacy depends on how we manage our iden- the rate at which users utilize their services while preserv- tities. A common approach to remaining anonymous online ing their anonymity. Hence, allowing the service providers to is to use pseudonyms. However, pseudonymous identities prevent abuse in the form of spam or Sybil attacks, which come at the expense of trust i.e., it is difficult to determine are prevalent in such online services that offer anonymity. whether a pseudonym has been created by a legitimate per- Opaak leverages the mobile phone as a scarce resource com- son or for malicious purposes such as spam.
    [Show full text]
  • Download File
    Beyond Lurking and Trolling: Examination of College Student Literacy Practices in Online Asynchronous Discussion Spaces Agnieszka Markiewicz Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy under the Executive Committee of the Graduate School of Arts and Sciences Columbia University 2018 © 2018 Agnieszka Markiewicz All rights reserved ABSTRACT Beyond Lurking and Trolling: Examination of College Student Literacy Practices in Online Asynchronous Discussion Spaces Agnieszka Markiewicz Over the course of the past 15 years, college student populations as well as information technologies have undergone dramatic changes. Today’s college populations are more diverse as women, minorities, non-traditional students and veterans are the fastest growing populations. Additionally, the number of people enrolled in colleges has gone from 4.9 million in 2000 to 20.2 million in 2017. Simultaneously, the growth and proliferation of information technologies have changed the ways information is consumed and social relationships formed. The Internet, and discursive spaces that are specific to it, allow people to learn at their own pace, connect across national borders, and experiment with identities. This dissertation worked towards understanding how various college populations interact with online spaces, particularly asynchronous online spaces such as Reddit, Quora, Amazon product reviews, and various other spaces. The qualitative data collected for the dissertation included a survey of 84 participants and interviews with 12 participants. The data were analyzed using a theoretical framework based on Socio- Cultural Theories of Literacies, Critical Media Studies, and Postcolonial Theory. Findings and implications of this dissertation show a need for increased involvement in critical media literacies education of college students, and a need for educators to build culturally responsive, civic-based, and globally minded curricula rooted in student information technology usage.
    [Show full text]