Kurzfassung
Die Dezentralität ist einer der bedeutsamsten Aspekte der Blockchain-Technologie. Dennoch gibt es große Unterschiede in der Dezentralität verschiedener Blockchain-Applikationen. Ziel der vorliegenden Arbeit ist es, eine strukturelle und funktionelle Durchdringung des Aspekts der Dezentralität zu erreichen und Eigenschaften zu finden, die es ermöglichen verschiedene Blockchain-Applikationen in ihrer Dezentralität zu differenzieren. Der vorliegende Beitrag legt dar, dass die Datenverteilung und die Zugangsberechtigungen (Lese- und Schreibzugang) entscheidende Eigenschaften für die Dezentralität der Blockchain Applikationen sind. Diese Eigenschaften werden mithilfe eine morphologische Analyse untersucht und es wird ein detaillierter Überblick über die verschiedenen Ausprägungen der genannten Eigenschaften und der Auswirkungen auf die Dezentralität gegeben.
Abstract
Decentralization is one of the most important aspects of blockchain technology. However, there are large differences in the decentralization of different blockchain applications. The aim of this thesis is to achieve a structural and functional exploration of the aspect of decentralization and to find properties that allow to differentiate blockchain applications in their degree of decentralization. The present article explains that the data distribution and the accessibility (read and write access) are crucial characteristics for the decentralization of the Blockchain applications. These properties will be investigated by means of a morphological analysis and a detailed overview will be given of the different manifestations of these properties and their effects on decentralization.
Literatur
1. Tapscott, D.; Tapscott, A.: Blockchain Revolution. How the Technology behind Bitcoin is Changing Money, Business, and the World. Portfolio/Penguin, New York, 2016Search in Google Scholar
2. Nofer, M.; Gomber, P.; Hinz, O. et al.: Blockchain. Business & Information Systems Engineering59 (2017) 3, S. 183–18710.1007/s12599-016-0459-8Search in Google Scholar
3. Bashir, I.: Mastering Blockchain. Distributed Ledgers, Decentralization, and Smart Contracts Explained. Packt Publishing, Birmingham, 2018Search in Google Scholar
4. Casey, M.; Vigna, P. (Hrsg.): The Truth Machine. The Blockchain and the Future of Everything. St. Martin's Press, New York, 2018Search in Google Scholar
5. Mattila, J.: The Blockchain Phenomenon. The Disruptive Potential of Distributed Consensus Architectures, 2016Search in Google Scholar
6. Meinel, C.; Gayvoronskaya, T.; Schnjakin, M. (Hrsg.): Blockchain. Hype oder Innovation. Technische Berichte des Hasso-Plattner-Instituts für Softwaresystemtechnik an der Universität Potsdam, Heft 113. Universitätsverlag Potsdam, Potsdam, 2018Search in Google Scholar
7. Dubois, E.; Pohl, K.: Advanced Information Systems Engineering, Heft 10253. Springer International Publishing, Cham, 201710.1007/978-3-319-59536-8Search in Google Scholar
8. Voigt, R. (Hrsg.): Handwörterbuch zur Kommunalpolitik, 198410.1007/978-3-322-95697-2Search in Google Scholar
9. Tanenbaum, A. S.; van Steen, M. (Hrsg.): Distributed Systems. Principles and Paradigms. Pearson Prentice Hall, Upper Saddle RIiver, NJ, 2007Search in Google Scholar
10. Özsu, M. T.; Valduriez, P. (Hrsg.): Principles of Distributed Database Systems. Springer-Verlag, Berlin, Heidelberg, New York201110.1007/978-1-4419-8834-8Search in Google Scholar
11. Crowcroft, J.; Moreton, T.; Pratt, I. et al.: Peer-to-Peer Systems and the Grid, 2002Search in Google Scholar
12. BitFury Group; Garzik, J.: Public versus Private Blockchains. Part 1: Permissioned Blockchains, 2015Search in Google Scholar
13. Christidis, K.; Devetsikiotis, M.: Blockchains and Smart Contracts for the Internet of Things. IEEE Access4 (2016) 5, S. 2292–230310.1109/ACCESS.2016.2566339Search in Google Scholar
14. Crosby, M.; Nachiappan; Pattanayak, P. et al.: BlockChain Technology: Beyond Bitcoin. Applied Innovation Review (2016) 2, S. 6–19Search in Google Scholar
15. Xu, X.; Weber, I.; Staples, M. et al.: A Taxonomy of Blockchain-Based Systems for Architecture Design. In: IEEE (Hrsg.): International Conference on Software Architecture (ICSA). 2017 IEEE International Conference on Software Architecture (ICSA), Gothenburg, Sweden, 03.04.2017–07.04.2017, S. 243–252.Search in Google Scholar
16. Bashir, I.: Mastering Blockchain. Distributed Ledgers, Decentralization and Smart Contracts Explained. Packt Publishing, Birmingham, UK, 2017Search in Google Scholar
17. Baliga, A.: Understanding Blockchain Consensus Models, 2017Search in Google Scholar
18. European Central Bank: Distributed Ledger Technology in Focus, 2016Search in Google Scholar
19. Goverment Office for Science: Distributed Ledger Technology and Blockchain. World Bank, 2017Search in Google Scholar
20. Mainelli, M.; Smith, M.: Sharing Ledgers for Sharing Economies: An Exploration of Mutual Distributed Ledgers (aka Blockchain Technology). The Journal of Financial Perspectives: FinTech (2015) 3, S. 1–45Search in Google Scholar
21. Drescher, D.: Blockchain Basics–A Non-technical Introduction in 25 Steps. Apress, New York, 201710.1007/978-1-4842-2604-9Search in Google Scholar
22. Lemieux, V. L.: Trusting Records: Is Blockchain Technology the Answer?Records Management Journal26 (2016) 2, S. 110–13910.1108/RMJ-12-2015-0042Search in Google Scholar
23. Wust, K.; Gervais, A.: Do you Need a Blockchain? In: IEEE (Hrsg.): Crypto Valley Conference on Blockchain Technology (CVCBT), Zug, Switzerland, IEEE, 2018, S. 45–5410.1109/CVCBT.2018.00011Search in Google Scholar
24. Gregori, E.; Anastasi, G.; Basagni, S. (Hrsg.): Advanced Lectures on Networking. Lecture Notes in Computer Science, Heft 1410. Springer-Verlag, Berlin, London, 200210.1007/3-540-36162-6Search in Google Scholar
25. Androutsellis-Theotokis, S.; Spinellis, D.: A Survey of Peer-to-Peer Content Distribution Technologies. ACM Computing Surveys36 (2004) 4, S. 335–37110.1145/1041680.1041681Search in Google Scholar
26. Iansiti, M.; Lakhani, K. R.: The Truth about Blockchain. Harvard Business Review (2017) 3, S. 3–11Search in Google Scholar
27. Brühl, V.: Bitcoins, Blockchain und Distributed Ledgers. Wirtschaftsdienst97 (2017) 2, S. 135–14210.1007/s10273-017-2096-3Search in Google Scholar
28. Antonopoulos, A. M.: Mastering Bitcoin. Programming the Open Blockchain. O'Reilly, Sebastopol CA, 2017Search in Google Scholar
29. Condos, J.; Sorrell, W. H.; Donegan, S. L.: Blockchain Technology: Opportunities and Risks, 2016. Online unter https://legislature.vermont.gov/assets/Legislative-Reports/blockchain-technology-report-final.pdf [Zugriff am 15.03.2018]Search in Google Scholar
30. Wang, H.; Zheng, Z.; Xie, S. et al.: Blockchain Challenges and Opportunities: A Survey. International Journal of Web and Grid Services14 (2018) 4, S. 35210.1504/IJWGS.2018.10016848Search in Google Scholar
31. Zheng, Z.; Xie, S.; Dai, H. et al.: An Overview of Blockchain Technology: Architecture, Consensus, and Future Trends. 2017 IEEE 6th International Congress on Big Data (2017) 6, S. 557–56410.1109/BigDataCongress.2017.85Search in Google Scholar
32. Satoshi, N.: Bitcoin: A Peer-to-Peer Electronic Cash System, 2008. Online unter https://bitcoin.org/de/bitcoin-paper [Zugriff am 18. August 2019]Search in Google Scholar
33. Decker, C.; Wattenhofert, R.: Information Propagation in the Bitcoin Network. 9–11 Sept. 2013, Trento, Italy. IEEE, Piscataway, NJ, 201310.1109/P2P.2013.6688704Search in Google Scholar
34. Biais, B.; Bisiere, C.; Bouvard, M. et al.: The Blockchain Folk Theorem. Working Paper, Toulouse School of Economics, 201810.2139/ssrn.3108601Search in Google Scholar
35. Lakshmi, S. S.; Sindhu, M.; Sethumadhavan, M. (Hrsg.): Survey of Consensus Protocols on Blockchain Applications, Coimbatore, 2017 International Conference on Advanced Computing and Communication Systems. IEEE, Piscataway, NJ, 2017Search in Google Scholar
36. BitFury Group: Proof of Stake versus Proof of Work, 2015Search in Google Scholar
37. Abe, R.; Suzuki, S.; Murai, J.: Mitigating Bitcoin Node Storage Size by DHT. In: Proceedings of the Asian Internet, S. 17–23Search in Google Scholar
38. Matetic, S.; Wüst, K.; Schneider, M. et al.: Bite: Bitcoin Lightweight Client Privacy using Trusted Execution. ETH Zurich, NEC Labs, 2018Search in Google Scholar
39. Jia, D.; Xin, J.; Wang, Z. et al.: ElasticChain: Support Very Large Blockchain by Reducing Data Redundancy. In: Cai, Y.; Ishikawa, Y.; Xu, J. (Hrsg.): Web and Big Data. Lecture Notes in Computer Science, S. 440–454. Springer International Publishing, Cham, 201810.1007/978-3-319-96893-3_33Search in Google Scholar
40. Perard, D.; Lacan, J.; Bachy, Y. et al.: Erasure Code-based Low Storage Blockchain Node, 201810.1109/Cybermatics_2018.2018.00271Search in Google Scholar
41. Palai, A.; Vora, M.; Shah, A.: Empowering Light Nodes in Blockchains with Block Summarization. In: Proceedings of the 9th IFIP International Conference on New Technologies, Mobility & Security (NTMS), Conference and Workshop: 26–28 February 2018, Paris, France. IEEE, Piscataway, NJ, 201810.1109/NTMS.2018.8328735Search in Google Scholar
42. Kubitschko, S.; Kaun, A.: Innovative Methods in Media and Communication Research. Springer International Publishing, Cham, 201610.1007/978-3-319-40700-5Search in Google Scholar
43. Gruber, D.; Li, W.; Karame, G.: Unifying Lightweight Blockchain Client Implementations, 201810.14722/diss.2018.23010Search in Google Scholar
44. Franco, P.: Understanding Bitcoin. Cryptography, Engineering and Economics. The Wiley Finance Series. Wiley, Chichester, West Sussex, 201510.1002/9781119019138Search in Google Scholar
45. Narayanan, A.; Bonneau, J.; Felten, E. et al.: Bitcoin and Cryptocurrency Technologies, Princeton University, 2016Search in Google Scholar
46. Eyal, I.; Sirer, E. G.: Majority is not Enough: Bitcoin Mining is Vulnerable, 201310.1007/978-3-662-45472-5_28Search in Google Scholar
47. Schlatt, V.; Schweizer, A.; Urbach, N. et al.: Blockchain: Grundlagen, Anwendungen und Potenziale. Projektgruppe Wirtschaftsinformatik des Fraunhofer-Instituts für Angewandte Informationstechnik FIT, 2016Search in Google Scholar
48. Swanson, T.: Consensus-as-a-Service. A Brief Report on the Emergence of Permissioned Distributed Ledger, 2015Search in Google Scholar
49. Blockchain Hub: Blockchain. A Beginners Guide, 2017Search in Google Scholar
50. Olleros, F.; Zhegu, M.: Research Handbook on Digital Transformations. Edward Elgar Publishing, 201610.4337/9781784717766Search in Google Scholar
51. Palkovits, R.; Pohlmann, N.; Schwedt, I.: Blockchain Technologie revolutioniert das digitale Business. IT-Sicherheit (2017) 2, S. 54–60Search in Google Scholar
52. Hammel, C. (Hrsg.): Blockchains, Smart Contracts und das Dezentrale Web, 2016Search in Google Scholar
53. Xie, X.; Huang, T.; Guo, Z.: Research on the Security Protection Scheme for Container-Based Cloud Platform Node Based on BlockChain Technology. In: Zhou, Q.; Gan, Y.; Jing, W. et al. (Hrsg.): Data Science. Communications in Computer and Information Science, S. 24–32. Springer-Verlag, Singapore, 201810.1007/978-981-13-2203-7_3Search in Google Scholar
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