Blockchain Meets Cloud Computing: A Survey

Gai, Keke; Guo, Jinnan; Zhu, Liehuang; Yu, Shui

doi:10.1109/comst.2020.2989392

Cited by 288 publications

(111 citation statements)

References 160 publications

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“…In a real network, the value of P is always between 0.1 and 0.2 (as the network scale expands, the value of P is different), so we set P to 0.15 and calculate as 0.15. Therefore, in the simulation network discussed below, we will calculate the importance of each node according to Equations (2) and 3, and select the top 15% of the nodes as secondary nodes. The secondary nodes will be set to have twice the bandwidth of normal nodes and 100G of cache space.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…The core of the blockchain technology is the decentralized structure and the asymmetric encryption method, which ensure the security and irreparable modification of the data and solve the trust problem in the network. As the backbone technology of the future Internet, the blockchain technology has the potential to subvert the Internet infrastructure [2]. At the same time, the application services based on the blockchain technology are characterized by large amount of data broadcasting with high frequency, so the data is frequently generated and frequently distributed to the nodes in the network, which requires better quality of service in the network, such as transmission speed.…”

Section: Introductionmentioning

confidence: 99%

“…Calculate the importance of every node in the new topology network according to Equation (2) and Equation (3) 10: Set the value of P 11: Calculate the and according to Equation (4) and Equation 712: Select the appropriate number of nodes as secondary nodes based on the value of 13: Set these nodes as the secondary nodes…”

mentioning

confidence: 99%

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An Accelerating Approach for Blockchain Information Transmission Based on NDN

Yang

Lü²,

Gao

et al. 2021

Future Internet

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Blockchain is becoming more and more popular in various fields. Since the information transmission mode of the blockchain is data broadcasting, the traditional TCP/IP network cannot support the blockchain system well, but the Named-Data Networking (NDN) could be a good choice because of its multi-path forwarding and intra-network caching functions. In this article, we propose a new blockchain information transmission acceleration strategy (AITS) combining with graph theory and probability theory based on the NDN architecture. We select some more important nodes in the network as “secondary nodes”, and give them more bandwidth and cache space to assist the NDN network in data transmission. In order to select the correct node as the secondary node, we present a method to calculate the number of secondary nodes, and give the function to calculate the importance of each node. The simulation results show that in complex networks, the proposed method has superior performance in accelerating information transmission and reducing data overhead.

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Accelerating Approach for Blockchain Information Transmission Based on NDN

Yang

Lü²,

Gao

et al. 2021

Future Internet

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show abstract

“…A microgrid consists of a physical layer, with the model explained in the last section, and a communication layer, which works based on a blockchain platform [29]. In such a complex cyber-physical structure, the advanced metering infrastructure (AMI), which works based on wireless sensor networks, is in charge of data gathering, data communication and energy consumption analysis for the optimal operation of the microgrid [30].…”

Section: Secured Framework Based On Blockchainmentioning

confidence: 99%

A Secured Social-Economic Framework Based on PEM-Blockchain for Optimal Scheduling of Reconfigurable Interconnected Microgrids

Yin¹,

Hajjiah

Jermsittiparsert³

et al. 2021

IEEE Access

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Optimal scheduling of reconfigurable interconnected microgrids is a precious and critical task for the residential consumers especially with the integration of renewable energy sources, dispatchable units and energy storage systems. In this regard, not only the optimal scheduling of the microgrids in a realistic and correlated environment is a necessity, but also the guarantied security and the prevention of cyber-attacks are mandatory tasks for the operators. This article first addresses these issues by developing a novel framework based on blockchain for secured data transaction from the individual microgrids' components to the central control unit and then tries to find the optimal scheduling plan using stochastic programming based on point estimate method (PEM). Through such a hybrid PEM-blockchain based framework, the interconnected microgrids can supply the residential loads in a fully reliable, economic and secured structure. We also consider a social-economic framework to not only minimize the total operating cost of the microgrids, but also benefit the customers by enhancing the social factors through the optimal switching. Considering the complex and nonlinear nature of the problem, an effective corrected crow search (CCS) algorithm is deployed to find the most optimal operating point for the microgrids. The quality and capabilities of the proposed model are investigated using a practical residential interconnected microgrid. The results show that the optimal switching could reduce the total operation cost from $22,716 to $21,935 (3.56% reduction). Also, the average energy not supplied (AENS) has reduced from 1.4115 to 1.352 kWh/customer.yr (4.40% reduction), which are notable values. The results advocate the quality and functionality of the proposed framework.

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“…The fusion of blockchain technology and cloud computing technology has a great prospect. 15 A lot of literatures applied blockchain technology to solve the problems of cloud security. At present, the blockchain technology is used to protect cloud data security.…”

Section: Introductionmentioning

confidence: 99%

BCAS: A blockchain-based ciphertext-policy attribute-based encryption scheme for cloud data security sharing

Zuo

Kang

et al. 2021

International Journal of Distributed Sensor Networks

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It is the most important and challenging problem to share the data safely in cloud computing. Some so-called trusted third parties may also infringe users’ data privacy. It is an urgent problem for data owners to share data safely with the designated users rather than the third party or other users. Traditional encryption schemes utilize different keys to produce multiple encrypted copies of the same data for users. It is no longer applicable for cloud data sharing security. Attribute-based encryption can solve above problems, but it needs to rely on trusted third parties to protect the users’ privacy. In this article, in order to address the above problems, we propose a blockchain-based ciphertext-policy attribute-based encryption scheme for cloud data secure sharing without relying on any trusted third parties. Blockchain-based ciphertext-policy attribute-based encryption scheme can protect the rights and security of data owner. Compared with existing cloud security schemes, the proposed scheme has more advantages in terms of the six aspects: (1) data owners have the authority to decide who can decrypt the data; (2) the operations of users are retained permanently, and all records are tamper-proof; (3) our proposed scheme has the characteristic of “one-to-many” encryption, and data is encrypted only once; (4) our scheme does not rely on any trusted third party; (5) in terms of the discrete logarithm problem and decisional q parallel-bilinear Diffie–Hellman exponent problem, we prove that our proposed scheme is secure; and (6) experiment shows that our proposed scheme is more efficient than the comparative scheme.

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Blockchain Meets Cloud Computing: A Survey

Cited by 288 publications

References 160 publications

An Accelerating Approach for Blockchain Information Transmission Based on NDN

An Accelerating Approach for Blockchain Information Transmission Based on NDN

A Secured Social-Economic Framework Based on PEM-Blockchain for Optimal Scheduling of Reconfigurable Interconnected Microgrids

BCAS: A blockchain-based ciphertext-policy attribute-based encryption scheme for cloud data security sharing

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