Blockchain Networks – Security Aspects and Consensus Models

Data integration and fast effective data processing are the primary challenges in today’s high-performance computing systems used for Big Data processing and analysis in practical scenarios. Blockchain (BC) is a hot, modern technology that ensures high security of data processes stored in highly dist...

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Bibliographic Details
Published in:Journal of Telecommunications and Information Technology 2019-07, Vol.2 (2019), p.46-52
Main Authors: Wilczyński, Andrzej, Widłak, Adrian
Format: Article
Language:English
Subjects:
Algorithms
Blockchain
blocks
Computer networks
Cryptography
Data integration
Data processing
Digital currencies
Human error
ledger
Privacy
proof of work
Security aspects
System effectiveness
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Summary:Data integration and fast effective data processing are the primary challenges in today’s high-performance computing systems used for Big Data processing and analysis in practical scenarios. Blockchain (BC) is a hot, modern technology that ensures high security of data processes stored in highly distributed networks and ICT infrastructures. BC enables secure data transfers in distributed systems without the need for all operations and processes in the network to be initiated and monitored by any central authority (system manager). This paper presents the background of a generic architectural model of a BC system and explains the concept behind the consensus models used in BC transactions. Security is the main aspect of all defined operations and BC nodes. The paper presents also specific BC use cases to illustrate the performance of the system in practical scenarios..
ISSN:1509-4553
1899-8852
DOI:10.26636/jtit.2019.132019