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  • Open Access

    ARTICLE

    CWoT-Share: Context-Based Web of Things Resource Sharing in Blockchain Environment

    Yangqun Li1,2,*, Jin Qi1,2, Lijuan Min1,2, Hongzhi Yang1,2, Chenyang Zhou1,2, Bonan Jin3

    CMC-Computers, Materials & Continua, Vol.72, No.3, pp. 5079-5098, 2022, DOI:10.32604/cmc.2022.027281

    Abstract Web of Things (WoT) resources are not only numerous, but also have a wide range of applications and deployments. The centralized WoT resource sharing mechanism lacks flexibility and scalability, and hence cannot satisfy requirement of distributed resource sharing in large-scale environment. In response to this problem, a trusted and secure mechanism for WoT resources sharing based on context and blockchain (CWoT-Share) was proposed. Firstly, the mechanism can respond quickly to the changes of the application environment by dynamically determining resource access control rules according to the context. Then, the flexible resource charging strategies, which reduced the fees paid by the… More >

  • Open Access

    ARTICLE

    Blockchain-based Distributed Power Market Trading Mechanism

    Dongjun Cui1,*, Jinghan He2, Guofang Zhang3, Zihan Hou4

    CMC-Computers, Materials & Continua, Vol.72, No.2, pp. 2845-2858, 2022, DOI:10.32604/cmc.2022.026568

    Abstract Distributed power market trading has the characteristics of large number of participants, scattered locations, small single trading scale, and point-to-point trading. The traditional centralized power trading model has the problems of large load, low efficiency, high cost, reliance on third parties and unreliable data. With the characteristics of decentralization and non-tampering, blockchain can establish a point-to-point trusted trading environment and provide effective solutions to the above problems. Therefore, this paper proposed a distributed power market trading framework based on blockchain. In this framework, the distributed power supply characteristics and trading needs of each participant are analyzed, a complete distributed trading… More >

  • Open Access

    ARTICLE

    Cooperative Detection Method for DDoS Attacks Based on Blockchain

    Jieren Cheng1,2, Xinzhi Yao1,2,*, Hui Li3, Hao Lu4, Naixue Xiong5, Ping Luo1,2, Le Liu1,2, Hao Guo1,2, Wen Feng1,2

    Computer Systems Science and Engineering, Vol.43, No.1, pp. 103-117, 2022, DOI:10.32604/csse.2022.025668

    Abstract Distributed Denial of Service (DDoS) attacks is always one of the major problems for service providers. Using blockchain to detect DDoS attacks is one of the current popular methods. However, the problems of high time overhead and cost exist in the most of the blockchain methods for detecting DDoS attacks. This paper proposes a blockchain-based collaborative detection method for DDoS attacks. First, the trained DDoS attack detection model is encrypted by the Intel Software Guard Extensions (SGX), which provides high security for uploading the DDoS attack detection model to the blockchain. Secondly, the service provider uploads the encrypted model to… More >

  • Open Access

    ARTICLE

    Cost Efficient Scheduling Using Smart Contract Cognizant Ethereum for IoMT

    G. Ravikumar1, K. Venkatachalam2, Mehedi Masud3, Mohamed Abouhawwash4,5,*

    Intelligent Automation & Soft Computing, Vol.33, No.2, pp. 865-877, 2022, DOI:10.32604/iasc.2022.024278

    Abstract Recently internet of medical things (IoMT) act as a smart doctor using sensor wearable’s device in human body. This smart doctor device senses necessary medical data from human and transfer via network immediately to physician. It is important to transfer sensitive data very securely. Blockchain becomes trending technology to provide high security to both end users in the network. Traditionally security structure is relying on cryptographic techniques which is very expensive and takes more time in securely transmitting data. To overcome this issue, this paper builds a cost effective, blockchain with IoMT using fog-cloud computing. The aim of research is… More >

  • Open Access

    ARTICLE

    ISmart: Protecting Smart Contract Against Integer Bugs

    Xingyu Zeng1, Hua Zhang1,*, Chaosong Yan2, Liu Zhao1, Qiaoyan Wen1

    Intelligent Automation & Soft Computing, Vol.33, No.2, pp. 997-1008, 2022, DOI:10.32604/iasc.2022.022801

    Abstract Blockchain technology is known as a decentralized, distributed ledger that records digital asset. It has been applied in numbers of aspects of society, including finance, judiciary and commerce. Ethereum is referred to as the next generation decentralized application platform. It is one of the most popular blockchain platforms that supports smart contracts. Smart contract is a set of codes that sored on blockchain and can be called and created as turing-complete programs running on the blockchain. Developers use smart contracts to build decentralized applications (Dapp) which has widely used cryptocurrency related project. As smart contracts become more popular and more… More >

  • Open Access

    ARTICLE

    CryptoNight Mining Algorithm with YAC Consensus for Social Media Marketing Using Blockchain

    Anwer Mustafa Hil1, Fahd N. Al-Wesabi2, Hadeel Alsolai3, Ola Abdelgney Omer Ali4, Nadhem Nemri5, Manar Ahmed Hamza1,*, Abu Sarwar Zamani1, Mohammed Rizwanullah1

    CMC-Computers, Materials & Continua, Vol.71, No.2, pp. 3921-3936, 2022, DOI:10.32604/cmc.2022.022301

    Abstract Social media is a platform in which user can create, share and exchange the knowledge/information. Social media marketing is to identify the different consumer's demands and engages them to create marketing resources. The popular social media platforms are Microsoft, Snapchat, Amazon, Flipkart, Google, eBay, Instagram, Facebook, Pin interest, and Twitter. The main aim of social media marketing deals with various business partners and build good relationship with millions of customers by satisfying their needs. Disruptive technology is replacing old approaches in the social media marketing to new technology-based marketing. However, this disruptive technology creates some issues like fake news, insecure,… More >

  • Open Access

    ARTICLE

    A Design Framework for Smart Ration Shop Using Blockchain and IoT Technologies

    D. Malathi1, Vijayakumar Ponnusamy2,*, S. Saravanan3, D. Deepa4, Tariq Ahamed Ahanger5

    Intelligent Automation & Soft Computing, Vol.32, No.1, pp. 605-619, 2022, DOI:10.32604/iasc.2022.022083

    Abstract The Public Distribution System (PDS) distributes the subsidized food and non-food items to poor populations through fair price shops (FPS). The PDS has been criticized for its urban bias and its failure to serve the underprivileged sections of the community effectively. The Current system manual-based data management and ledger management gives rise to much corruption in the process of extricating the poor from those who are less needy. There are chances for the block market because of the current methodology of data management. This article proposes a blockchain technology-based smart ration shop system that uses immutable smart contract-based transactions to… More >

  • Open Access

    ARTICLE

    Secured Vehicle Life Cycle Tracking Using Blockchain and Smart Contract

    Srinivasan Ananthanarayanan Bragadeesh, Arumugam Umamakeswari*

    Computer Systems Science and Engineering, Vol.41, No.1, pp. 1-18, 2022, DOI:10.32604/csse.2022.019842

    Abstract Life Cycle Tracking (LCT) involves continuous monitoring and analysis of various activities associated with a vehicle. The crucial factor in the LCT is to ensure the validity of gathered data as numerous supply chain phases are involved and the data is assessed by multiple stakeholders. Frauds and swindling activities can be prevented if the history of the vehicles is made available to the interested parties. Blockchain provides a way of enforcing trustworthiness to the supply chain participants and the data associated with the various actions performed. Machine learning techniques when combined decentralized nature of blockchains can be used to develop… More >

  • Open Access

    ARTICLE

    Towards Privacy-Preserving Cloud Storage: A Blockchain Approach

    Jia-Shun Zhang1, Gang Xu2,*, Xiu-Bo Chen1, Haseeb Ahmad3, Xin Liu4, Wen Liu5,6,7

    CMC-Computers, Materials & Continua, Vol.69, No.3, pp. 2903-2916, 2021, DOI:10.32604/cmc.2021.017227

    Abstract With the rapid development of cloud computing technology, cloud services have now become a new business model for information services. The cloud server provides the IT resources required by customers in a self-service manner through the network, realizing business expansion and rapid innovation. However, due to the insufficient protection of data privacy, the problem of data privacy leakage in cloud storage is threatening cloud computing. To address the problem, we propose BC-PECK, a data protection scheme based on blockchain and public key searchable encryption. Firstly, all the data is protected by the encryption algorithm. The privacy data is encrypted and… More >

  • Open Access

    ARTICLE

    Blockchain Based Secure Solution for Cloud Storage: A Model for Synchronizing Industry 4.0 and IIoT

    Prakhar Sahu1,*, S. K. Singh1, Arun Kumar Singh2

    Journal of Cyber Security, Vol.3, No.2, pp. 107-115, 2021, DOI:10.32604/jcs.2021.020831

    Abstract Industry 4.0 is one of the hot topic of today’s world where everything in the industry will be data driven and technological advancements will take place accordingly. In the fourth phase of industrial revolution, manufacturers are dependent upon data produced by the consumers to invent, innovate or change anything for the product. Internet of things devices like OBD, RFID, IIoT, Smart devices are the major source of data generation and represents trends in the industry. Since the IoT device are vulnerable to hackers due to its limitation, consumer data security should be tighten up and enhanced. This paper gives an… More >

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