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  • Open Access


    Hybrid Cloud Security by Revocable KUNodes-Storage with Identity-Based Encryption

    S. Saravanakumar1,*, S. Chitra2

    Computer Systems Science and Engineering, Vol.43, No.3, pp. 985-996, 2022, DOI:10.32604/csse.2022.019508

    Abstract Cloud storage is a service involving cloud service providers providing storage space to customers. Cloud storage services have numerous advantages, including convenience, high computation, and capacity, thereby attracting users to outsource data in the cloud. However, users outsource data directly via cloud stage services that are unsafe when outsourcing data is sensitive for users. Therefore, cipher text-policy attribute-based encryption is a promising cryptographic solution in a cloud environment, and can be drawn up for access control by data owners (DO) to define access policy. Unfortunately, an outsourced architecture applied with attribute-based encryption introduces numerous challenges, including revocation. This issue is… More >

  • Open Access


    A Traceable Capability-based Access Control for IoT

    Chao Li1, Fan Li1,2, Cheng Huang3, Lihua Yin1,*, Tianjie Luo1,2, Bin Wang4

    CMC-Computers, Materials & Continua, Vol.72, No.3, pp. 4967-4982, 2022, DOI:10.32604/cmc.2022.023496

    Abstract Delegation mechanism in Internet of Things (IoT) allows users to share some of their permissions with others. Cloud-based delegation solutions require that only the user who has registered in the cloud can be delegated permissions. It is not convenient when a permission is delegated to a large number of temporarily users. Therefore, some works like CapBAC delegate permissions locally in an offline way. However, this is difficult to revoke and modify the offline delegated permissions. In this work, we propose a traceable capability-based access control approach (TCAC) that can revoke and modify permissions by tracking the trajectories of permissions delegation.… More >

  • Open Access


    Research on ABAC Access Control Based on Big Data Platform

    Kun Yang1, Xuanxu Jin2, Xingyu Zeng1,*

    Journal of Cyber Security, Vol.3, No.4, pp. 187-199, 2021, DOI:10.32604/jcs.2021.026735

    Abstract In the environment of big data, the traditional access control lacks effective and flexible access mechanism. Based on attribute access control, this paper proposes a HBMC-ABAC big data access control framework. It solves the problems of difficult authority change, complex management, over-authorization and lack of authorization in big data environment. At the same time, binary mapping codes are proposed to solve the problem of low efficiency of policy retrieval in traditional ABAC. Through experimental analysis, the results show that our proposed HBMC-ABAC model can meet the current large and complex environment of big data. More >

  • Open Access


    Interference-Aware Transmission Scheduling for Internet of Vehicles

    Mohammad Zubair Khan1,*, Muhammad Awais Javed2, Hamza Ghandorh1, Omar H. Alhazmi1, Khalid S. Aloufi3

    Intelligent Automation & Soft Computing, Vol.33, No.1, pp. 305-315, 2022, DOI:10.32604/iasc.2022.024091

    Abstract Next-generation Intelligent Transportation Systems (ITS) use wirelessly connected vehicles for safety and non-safety applications such as autonomous driving, cooperative awareness, route guidance and multimedia transmissions. This network known as the Internet of Vehicles (IoVs) suffers from many challenges such as collisions due to hidden terminals, and interference from simultaneously transmitting vehicles. Moreover, the packet reception ratio of transmissions between vehicles is significantly reduced at high vehicle densities and severe fading scenarios. As safety applications require periodic broadcast of safety messages from each vehicle to all other vehicles in the neighborhood, the development of an efficient medium access technique is a… More >

  • Open Access


    A Multi-Factor Authentication-Based Framework for Identity Management in Cloud Applications

    Wael Said1, Elsayed Mostafa1,*, M. M. Hassan1, Ayman Mohamed Mostafa2

    CMC-Computers, Materials & Continua, Vol.71, No.2, pp. 3193-3209, 2022, DOI:10.32604/cmc.2022.023554

    Abstract User's data is considered as a vital asset of several organizations. Migrating data to the cloud computing is not an easy decision for any organization due to the privacy and security concerns. Service providers must ensure that both data and applications that will be stored on the cloud should be protected in a secure environment. The data stored on the public cloud will be vulnerable to outside and inside attacks. This paper provides interactive multi-layer authentication frameworks for securing user identities on the cloud. Different access control policies are applied for verifying users on the cloud. A security mechanism is… More >

  • Open Access

    An Access Control Scheme Using Heterogeneous Signcryption for IoT Environments

    Insaf Ullah1,*, Hira Zahid2 , Fahad Algarni3, Muhammad Asghar Khan1

    CMC-Computers, Materials & Continua, Vol.70, No.3, pp. 4307-4321, 2022, DOI:10.32604/cmc.2022.017380


    When the Wireless Sensor Network (WSN) is combined with the Internet of Things (IoT), it can be employed in a wide range of applications, such as agriculture, industry 4.0, health care, smart homes, among others. Accessing the big data generated by these applications in Cloud Servers (CSs), requires higher levels of authenticity and confidentiality during communication conducted through the Internet. Signcryption is one of the most promising approaches nowadays for overcoming such obstacles, due to its combined nature, i.e., signature and encryption. A number of researchers have developed schemes to address issues related to access control in the IoT literature,… More >

  • Open Access


    Cloud Security Service for Identifying Unauthorized User Behaviour

    D. Stalin David1, Mamoona Anam2, Chandraprabha Kaliappan3, S. Arun Mozhi Selvi4, Dilip Kumar Sharma5, Pankaj Dadheech6, Sudhakar Sengan7,*

    CMC-Computers, Materials & Continua, Vol.70, No.2, pp. 2581-2600, 2022, DOI:10.32604/cmc.2022.020213

    Abstract Recently, an innovative trend like cloud computing has progressed quickly in Information Technology. For a background of distributed networks, the extensive sprawl of internet resources on the Web and the increasing number of service providers helped cloud computing technologies grow into a substantial scaled Information Technology service model. The cloud computing environment extracts the execution details of services and systems from end-users and developers. Additionally, through the system’s virtualization accomplished using resource pooling, cloud computing resources become more accessible. The attempt to design and develop a solution that assures reliable and protected authentication and authorization service in such cloud environments… More >

  • Open Access


    Identity Governance Framework for Privileged Users

    Mansour Hammoud Alruwies1, Shailendra Mishra2,*, Mohammed Abdul Rahman AlShehri1

    Computer Systems Science and Engineering, Vol.40, No.3, pp. 995-1005, 2022, DOI:10.32604/csse.2022.019355

    Abstract Information technology companies have grown in size and recognized the need to protect their valuable assets. As a result, each IT application has its authentication mechanism, and an employee needs a username and password. As the number of applications increased, as a result, it became increasingly complex to manage all identities like the number of usernames and passwords of an employee. All identities had to be retrieved by users. Both the identities and the access rights associated with those identities had to be protected by an administrator. Management couldn’t even capture such access rights because they couldn’t verify things like… More >

  • Open Access


    Secure Data Sharing with Confidentiality, Integrity and Access Control in Cloud Environment

    V. Rajkumar1,*, M. Prakash2, V. Vennila3

    Computer Systems Science and Engineering, Vol.40, No.2, pp. 779-793, 2022, DOI:10.32604/csse.2022.019622

    Abstract Cloud storage is an incipient technology in today’s world. Lack of security in cloud environment is one of the primary challenges faced these days. This scenario poses new security issues and it forms the crux of the current work. The current study proposes Secure Interactional Proof System (SIPS) to address this challenge. This methodology has a few key essential components listed herewith to strengthen the security such as authentication, confidentiality, access control, integrity and the group of components such as AVK Scheme (Access List, Verifier and Key Generator). It is challenging for every user to prove their identity to the… More >

  • Open Access


    Enhanced Trust Based Access Control for Multi-Cloud Environment

    N. R. Rejin Paul1,*, D. Paul Raj2

    CMC-Computers, Materials & Continua, Vol.69, No.3, pp. 3079-3093, 2021, DOI:10.32604/cmc.2021.018993

    Abstract Security is an essential part of the cloud environment. For ensuring the security of the data being communicated to and from the cloud server, a significant parameter called trust was introduced. Trust-based security played a vital role in ensuring that the communication between cloud users and service providers remained unadulterated and authentic. In most cloud-based data distribution environments, emphasis is placed on accepting trusted client users’ requests, but the cloud servers’ integrity is seldom verified. This paper designs a trust-based access control model based on user and server characteristics in a multi-cloud environment to address this issue. The proposed methodology… More >

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