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Fast Synchronization of New Nodes in the Fantom Opera Platform
Mlejnek, Matěj ; Homoliak, Ivan (oponent) ; Perešíni, Martin (vedoucí práce)
The goal of this master thesis is to research current ways of fast synchronization of new nodes in blockchain networks, considering different consenses. Then to compare these solutions, design feasible solution and then implement the new fast synchronisation for blockchain network Fantom Opera. The solution is based on an idea where new node in network doesn't connect to P2P network, but directly connects to one of the nodes and downloads just the necessary data to be synchronized with rest of network as fast as possible.
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Security and Performance Testbed for Simulation of Proof-of-Stake Protocols
Borčík, Filip ; Veselý, Vladimír (oponent) ; Homoliak, Ivan (vedoucí práce)
This work deals with performance and security testing of blockchain protocols based on the Proof-of-Stake (PoS) consensus model. It describes properties, problems, but also the use of blockchain systems. On theoretical levels, this thesis compares the properties and resistance to various attacks of numerous PoS protocols, specifically Algorand, Casper, Gasper, Snow White, Stellar and Decred. Additionally, this work implements a protocol simulator of Algorand, Casper FFG and Gasper. The simulator is built on top of the Bitcoin Simulator simulation tool, which is based on the NS-3 discrete network event simulator. Then, it compares the properties of the implemented protocols using discrete simulation.
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Fast Synchronization of New Nodes in the Fantom Opera Platform
Mlejnek, Matěj ; Homoliak, Ivan (oponent) ; Perešíni, Martin (vedoucí práce)
The goal of this master thesis is to research current ways of fast synchronization of new nodes in blockchain networks, considering different consenses. Then to compare these solutions, design feasible solution and then implement the new fast synchronisation for blockchain network Fantom Opera. The solution is based on an idea where new node in network doesn't connect to P2P network, but directly connects to one of the nodes and downloads just the necessary data to be synchronized with rest of network as fast as possible.
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Security and Performance Testbed for Simulation of Proof-of-Stake Protocols
Borčík, Filip ; Veselý, Vladimír (oponent) ; Homoliak, Ivan (vedoucí práce)
This work deals with performance and security testing of blockchain protocols based on the Proof-of-Stake (PoS) consensus model. It describes properties, problems, but also the use of blockchain systems. On theoretical levels, this thesis compares the properties and resistance to various attacks of numerous PoS protocols, specifically Algorand, Casper, Gasper, Snow White, Stellar and Decred. Additionally, this work implements a protocol simulator of Algorand, Casper FFG and Gasper. The simulator is built on top of the Bitcoin Simulator simulation tool, which is based on the NS-3 discrete network event simulator. Then, it compares the properties of the implemented protocols using discrete simulation.
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