Privacy in E-Learning
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1 Privacy in E-Learning Hauptseminar E-Learning Sommersemester 2008 Florian Schulz LFE Medieninformatik 7/22/08 LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 1 / 18
2 overview network security privacy threats and requirements standards samples LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 2 / 18
3 why network security? El-Khatib, K., Korba, L., Xu, Y., Yee, G., Privacy and security in elearning. In: International Journal of Distance Education. Volume 1, Number 4. Idea Group Publishing. LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 3 / 18
4 network security is a fundamental privacy requirement LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 4 / 18
5 network security... authentication data integrity network privacy LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 5 / 18
6 authentication verification of the users' identity several possible methods, like: user name and password digital signatures Fischlin, Giessler, Nitschke, Ritter, Verschlüsselung und Signatur Grundlagen und Anwendungsaspekte. In: E- Government Handbuch. Projektgruppe E-Government im Bundesamt für Sicherheit in der Informationstechnik (BSI). LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 6 / 18
7 data integrity proof of the senders' identity (cp. authentication) no data loss, damage or manual changes possible method: digital signatures but: Are there really the denoted persons sitting on their PCs? necessity to use conventional education concepts: monitor students by camera? monitor students by physically present human supervisor? LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 7 / 18
8 network privacy risk of private data being wiretapped use of ciphering algorithms symmetric method: one key for both encryption and decryption (Kerckhoffs' principle) asymmetric method: private and public key need of certification authortities (CAs) LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 8 / 18
9 privacy threats and further requirements LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 9 / 18
10 privacy threats and requirements copyright protection privacy not only for students but also for educators stored data user tracking needed to enhance an applications usability? credentials prove not only users' identity but also educational credentials customizable privacy levels what is stored? what is tracked? what is visible? LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 10 / 18
11 standardized privacy and security concepts LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 11 / 18
12 Platform for Privacy Preferences P3P preferences site policies stay or leave client server LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 12 / 18
13 sample e-learning platforms LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 13 / 18
14 Moodle LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 14 / 18
15 Moodle adjustable security level (only adjustable by educators) access for anybody access with course enrollment key access after manual enrollment tracking of registered users no possibility to change privacy level for students but: modular and extensible design possibility to implement privacy preserving plug-ins LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 15 / 18
16 Second Life LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 16 / 18
17 Second Life hidden user identity in-world rights management copyright protection (?) proprietary platform not (yet?) ready to allocate complete e-learning functionality LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 17 / 18
18 conclusion increasing number increasing number of technologies of standards increasing attention for privacy related issues increasing number of laws LMU Munich Media Informatics Hauptseminar SS 2008 Florian Schulz Slide 18 / 18
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