Comparative Analysis of Blockchain Technologies for Data Ownership and Smart Contract Negotiation
Typ
Examensarbete för masterexamen
Program
Publicerad
2019
Författare
TAXIARCHIS, VAIOS
KASANDA, MALAMA
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Blockchain technologies have gained significant popularity in the recent past. They
are distributed ledgers that record all the transactions on the network and allows
parties who do not trust each other to transact. The parties collaborate in its maintenance.
The Blockchain’s distributed nature connotes multiple ethical and privacy
concerns, such as unauthorized access and control of decentralized applications. In
this thesis, we first survey the state of the art, focusing on a comparative analysis of
public and private implementations of distributed ledgers. Additionally, we present
a proof of concept (PoC) implementation on the access control to certain parts of
smart contracts as well as investigate the possibility of negotiating the terms of
a smart contract. We make use of the commercial real estate leasing operations
as a case study. We conduct a comprehensive evaluation of our PoC. This evaluation
demonstrates a trade-off in the choice of blockchain technology for building
distributed applications. Drawing from the process flow of paper based contract
negotiations, we design a library mechanism that can be used to negotiate contract
terms in a bilateral fashion.
Beskrivning
Ämne/nyckelord
blockchain , smart contract , access control , commercial real estate , Ethereum , Hyperledger Fabric