The aim of this work is to provide an up-to-date comprehensive review of the peer-reviewed articles,the research projects and the entrepreneurial efforts that consider the utilization of blockchain technology in the e...The aim of this work is to provide an up-to-date comprehensive review of the peer-reviewed articles,the research projects and the entrepreneurial efforts that consider the utilization of blockchain technology in the energy sector in general and the power grid in particular.Through our review study we systematically classify existing applications of blockchain technology in the energy sector according to their field of activity.The comprehensive and holistic picture provided aims to contribute to the body of knowledge of the applicability of blockchain technology within the energy sector and pave the way for further research in this field.展开更多
In order to preserve privacy in a blockchain ecosystem,the main objective is to keep a transaction's data private,such as the sender,the receiver,and the amount transferred.The current work studies the cryptograph...In order to preserve privacy in a blockchain ecosystem,the main objective is to keep a transaction's data private,such as the sender,the receiver,and the amount transferred.The current work studies the cryptographic tools commonly used to achieve this type of privacy,primarily focusing on the Ethereum blockchain.Such tools usually require many computational and storage resources,leading to additional fees.An anonymous auction protocol was developed as a case study to explore these costs,where hiding the identity and the amount of the bids utilizes a variety of cryptographic primitives.The proposed implementation was compared against three sealed-bid auction protocols,which utilize similar cryptographic tools for preserving privacy throughout the auction process.The results show that providing an additional level of anonymity,such as hiding someone's identity,can increase the gas cost significantly,up to 2.5 times,depending on the choice of the cryptographic tools,which determine the usage of the blockchain's storage and computational resources.By adjusting the level of decentralization on the application level by moving some operations off-chain and maintaining the role of the auctioneer,we show that we can maintain anonymity while reducing the gas cost by 40%.展开更多
文摘The aim of this work is to provide an up-to-date comprehensive review of the peer-reviewed articles,the research projects and the entrepreneurial efforts that consider the utilization of blockchain technology in the energy sector in general and the power grid in particular.Through our review study we systematically classify existing applications of blockchain technology in the energy sector according to their field of activity.The comprehensive and holistic picture provided aims to contribute to the body of knowledge of the applicability of blockchain technology within the energy sector and pave the way for further research in this field.
文摘In order to preserve privacy in a blockchain ecosystem,the main objective is to keep a transaction's data private,such as the sender,the receiver,and the amount transferred.The current work studies the cryptographic tools commonly used to achieve this type of privacy,primarily focusing on the Ethereum blockchain.Such tools usually require many computational and storage resources,leading to additional fees.An anonymous auction protocol was developed as a case study to explore these costs,where hiding the identity and the amount of the bids utilizes a variety of cryptographic primitives.The proposed implementation was compared against three sealed-bid auction protocols,which utilize similar cryptographic tools for preserving privacy throughout the auction process.The results show that providing an additional level of anonymity,such as hiding someone's identity,can increase the gas cost significantly,up to 2.5 times,depending on the choice of the cryptographic tools,which determine the usage of the blockchain's storage and computational resources.By adjusting the level of decentralization on the application level by moving some operations off-chain and maintaining the role of the auctioneer,we show that we can maintain anonymity while reducing the gas cost by 40%.
