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A Decentralized Fair Governance Model for Permissionless Blockchain Systems (short paper)

Shiva Jairam, Jaap Gordijn, Isaac da Silva Torres, Fadime Kaya, Marc X. Makkes
2021 International Workshop on Value Modeling and Business Ontologies  
We argue that, in order to arrive at a really decentralized eco-system where power is fairly distributed, the governance should be decentralized; in other words, it should not be in the hand of one controlling  ...  Blockchain systems are a new way to reduce or even eliminate the role of the middlemen in an eco-system.  ...  Fair governance in eco-systems We define governance in decentralized eco-systems as "the set of rules a system has to obey, and which are set by another system" [5] .  ... 
dblp:conf/vmbo/JairamGTKM21 fatcat:cycjgr2wqnab3hxzdiseoof2bi

What is Meant by Permissionless Blockchains? [article]

Nicholas Stifter, Aljosha Judmayer, Philipp Schindler, Andreas Kern, Walid Fdhila
2021 IACR Cryptology ePrint Archive  
In particular, the ability to freely perform transactions between users is often not adequately incorporated and different actor roles are left unspecified.  ...  However, the notion of what is meant by permissionlessness is often vague or left implicit within the various literature, rendering it imprecise and hard to compare.  ...  , submit, exclude, liveness [67] 2020 CRYPTO order fairness [5] 2017 Eurocrypt join/leave, no IDs, sybils, no auth. no auth., no TTP no IDs consensus [68] 2019 Eurocrypt B, Ξ join/leave, ND [69] 2018 Eurocrypt  ... 
dblp:journals/iacr/StifterJSKF21 fatcat:6g3fwmr3cva2lnthjaoro33sky

A Game-Theoretic Analysis of Shard-Based Permissionless Blockchains [article]

Mohammad Hossein Manshaei, Murtuza Jadliwala, Anindya Maiti, Mahdi Fooladgar
2018 arXiv   pre-print
or set of transactions in parallel.  ...  Recent research efforts in this direction have proposed shard-based consensus protocols where the key idea is to split the transactions among multiple committees (or shards), which then process these shards  ...  NUMERICAL ANALYSIS We conduct a comprehensive set of numerical simulations, in order to validate how our proposed incentive-compatible protocol compares with uniform and fair reward sharing protocols in  ... 
arXiv:1809.07307v2 fatcat:2fjybtrm3rb3rafygtrv5bfj64

NimbleChain: Low-latency consensusless cryptocurrencies in general-purpose permissionless blockchains [article]

Paulo Silva, Miguel Matos, João Barreto
2021 arXiv   pre-print
To the best of our knowledge, NimbleChain is the first system to bring together fast consensusless transactions with strongly-consistent consensus-based transactions in a permissionless setting.  ...  The results show that the average latency to promise a transaction is an order of magnitude faster than consensus-based commit, with minimal overhead when compared with a vanilla Ethereum implementation  ...  To the best of our knowledge, NimbleChain is the first system to bring together fast consensusless transactions with stronglyconsistent consensus-based transactions in a permissionless setting.  ... 
arXiv:2108.12387v1 fatcat:y6a2fb7qobfuxo53wwbgdrglua

Privacy preservation in permissionless blockchain: A survey

Li Peng, Wei Feng, Zheng Yan, Yafeng Li, Xiaokang Zhou, Shohei Shimizu
2020 Digital Communications and Networks  
Therefore, in this paper, we analyze the specific characteristics of permissionless blockchain, summarize the potential privacy threats, and investigate the unique privacy requirements of blockchain.  ...  Currently, permissionless blockchain has shown a good application prospect in many fields, from the initial cryptocurrency to the Internet of Things (IoT) and Vehicular Ad-Hoc Networking (VANET), which  ...  Acknowledgements The work is supported in part by the National Natural Science Foundation of China under Grants 61672410 and 61802293, the Academy of Finland under Grants 308087, 314203 and 335262, the  ... 
doi:10.1016/j.dcan.2020.05.008 fatcat:e3fpgsqvljawtmfhapw2be3cqy

Consensus protocols as a model of trust in blockchains

Auqib Hamid Lone, Roohie Naaz Mir
2019 International Journal of Blockchains and Cryptocurrencies  
Creating a global fair decentralised consensus protocol is of prime importance, in order to address above-mentioned requirements sufficiently.  ...  Parameters that are critical in evaluating blockchain consensus protocol are also discussed. This paper also analyses the hardness of achieving the fair decentralised trust with proof.  ...  The consensus in the permissionless setup is challenging, as there is no restriction on the number of nodes that can join the network and these nodes can be anonymous and untrusted.  ... 
doi:10.1504/ijbc.2019.101845 fatcat:qjmjvpxj3jhflgnr2ejuso7p6m

Building Blocks of Sharding Blockchain Systems: Concepts, Approaches, and Open Problems [article]

Yizhong Liu, Jianwei Liu, Marcos Antonio Vaz Salles, Zongyang Zhang, Tong Li, Bin Hu, Fritz Henglein, Rongxing Lu
2021 arXiv   pre-print
Despite much recent research on sharding blockchains, much remains to be explored in the design space of these systems.  ...  Sharding is the prevalent approach to breaking the trilemma of simultaneously achieving decentralization, security, and scalability in traditional blockchain systems, which are implemented as replicated  ...  This work is supported in part by the National Key  ... 
arXiv:2102.13364v1 fatcat:sorni55a2fberm2toayzm3qvnm

Zero-Knowledge Proof-of-Identity: Sybil-Resistant, Anonymous Authentication on Permissionless Blockchains and Incentive Compatible, Strictly Dominant Cryptocurrencies [article]

David Cerezo Sánchez
2020 arXiv   pre-print
., national identity cards and/or ePassports; eSIM) is introduced here to permissionless blockchains in order to remove the inefficiencies of Sybil-resistant mechanisms such as Proof-of-Work (i.e., high  ...  and the blockchain scalability trilemma when instantiated on a blockchain with a consensus protocol based on the cryptographic random selection of nodes.  ...  Incentive-Compatible Cryptocurrency Shard-based consensus protocols have been recently introduced in order to increase the scalability and transaction throughput of public permissionless blockchains: however  ... 
arXiv:1905.09093v2 fatcat:djetqb5mcvh3vo4hdsenyobiuu

Don't Mine, Wait in Line: Fair and Efficient Blockchain Consensus with Robust Round Robin [article]

Mansoor Ahmed-Rengers, Kari Kostiainen
2020 arXiv   pre-print
On each round, we select a set of the previously created identities as consensus leader candidates in round robin manner.  ...  In this paper, we propose Robust Round Robin, a new consensus scheme that addresses this selection problem.  ...  Bitcoin [33] leverages Proof of Work (PoW) [17] and economic incentives to achieve consensus in a permissionless setting, assuming that the adversary does not control majority of the computing power  ... 
arXiv:1804.07391v3 fatcat:6oyjld72irbxxfsisda3pkfx2m

Research and Applied Perspective to Blockchain Technology: A Comprehensive Survey

Sumaira Johar, Naveed Ahmad, Warda Asher, Haitham Cruickshank, Amad Durrani
2021 Applied Sciences  
A consensus algorithm plays a core role in the implementation of blockchain. Any application implementing blockchain uses consensus algorithms to achieve its desired task.  ...  In this paper, we focus on provisioning of a comparative analysis of blockchain's consensus algorithms with respect to the type of application.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/app11146252 fatcat:kf4s2lvvuberdejs2bkvsmtz5m

Achieving cybersecurity in blockchain-based systems: A survey

Mar Gimenez-Aguilar, Jose Maria de Fuentes, Lorena Gonzalez-Manzano, David Arroyo
2021 Future generations computer systems  
With the increase in connectivity, the popularization of cloud services, and the rise of the Internet of Things (IoT), decentralized approaches for trust management are gaining momentum.  ...  We summarize the lessons learned and identify several matters to foster further research in this area.  ...  Acknowledgments The authors would like to thank the anonymous reviewers for their comments and suggestions, as well as Prof. Javier Lopez, Dr. David Galindo and Dr.  ... 
doi:10.1016/j.future.2021.05.007 fatcat:qgrvgan6znbmvnnatig3uduyau

A Vademecum on Blockchain Technologies: When, Which and How

Marianna Belotti, Nikola Bozic, Guy Pujolle, Stefano Secci
2019 IEEE Communications Surveys and Tutorials  
We draw the key requirements and their evolution when passing from permissionless to permissioned blockchains, presenting the differences between proposed and experimented consensus mechanisms, and describing  ...  that emerged in the last few years.  ...  ACKNOWLEDGMENT The authors would like to thank Eric Gressier-Soudan for his valuable feedback on the article as well the anonymous Reviewers for the constructive comments that significantly improved the  ... 
doi:10.1109/comst.2019.2928178 fatcat:isvs2zswl5hzfady4pjv63bkqq

A Consensus Algorithm Based on Risk Assessment Model for Permissioned Blockchain [article]

Xiaohui Zhang, Mingying Xue, Xianghua Miao
2022 arXiv   pre-print
As the core module of blockchain technology, the consensus algorithm plays a vital role in the performance of the blockchain system.  ...  Unlike permissionless blockchains, the participants must be identified in permissioned blockchains.  ...  We offer some assumptions about the permissioned blockchain in order to set the stage for the discussion of the Risk-Node Assessment Mechanism.  ... 
arXiv:2207.07453v1 fatcat:7lixtflqefcdxhmqxspu62hn5m

TrueChain: Highly Performant Decentralized Public Ledger [article]

Eric Zhang, Hendrik C, Yang Liu, Archit Sharma, Jasper L
2018 arXiv   pre-print
We go on to propose the idea of a new virtual machine on top of Ethereum which adds permissioned-chain based transaction processing capabilities in a permissionless setting.  ...  In this paper we present the initial design of Minerva consensus protocol for Truechain and other technical details.  ...  In a permissionless setting with mildly adaptive adversaries, we want Q fast to decay as slow as possible.  ... 
arXiv:1805.01457v3 fatcat:pp5t5vjfc5hjzi5kjywhwb2bui

Consensus Crash Testing: Exploring Ripple's Decentralization Degree in Adversarial Environments

Klitos Christodoulou, Elias Iosif, Antonios Inglezakis, Marinos Themistocleous
2020 Future Internet  
Firstly, this paper discusses the fundamental principles of existing consensus protocols in the context of both permissioned and permissionless distributed-ledger systems.  ...  The main contribution of this work deals with observations from experimenting with Ripple's consensus protocol as it is embodied in the XRP Ledger.  ...  Acknowledgments: We thank George Giaglis, Executive Director at the Institute For the Future (IFF), for his assistance with the methodology section of the paper and for the valuable comments that greatly  ... 
doi:10.3390/fi12030053 fatcat:ynjbib7qhvfjvboegdluxofqhm
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