RACHEIM: Reinforced Reliable Computing in Cloud by Ensuring Restricted Access Control
Cloud computing has witnessed rapid growth and notable technological progress in recent years. Nevertheless, it is still regarded as being in its early developmental phase, with substantial potential remaining to be explored—particularly through integration with emerging technologies such as the Met...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
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| Series: | Network |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-8732/5/2/19 |
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| Summary: | Cloud computing has witnessed rapid growth and notable technological progress in recent years. Nevertheless, it is still regarded as being in its early developmental phase, with substantial potential remaining to be explored—particularly through integration with emerging technologies such as the Metaverse, Augmented Reality (AR), and Virtual Reality (VR). As the number of service users increases, so does the demand for computational resources, leading data owners to outsource processing tasks to remote cloud servers. The internet-based delivery of cloud computing services consequently expands the attack surface and impacts the trust relationship between the service user and the service provider. To address these challenges, this study proposes a restricted access control framework based on homomorphic encryption (HE) and identity-based encryption (IBE) mechanisms. A formal analysis of the proposed model is also conducted under an unauthenticated communication model. Simulation results indicate that the proposed approach achieves a 20–40% reduction in encryption and decryption times, respectively, compared with existing state-of-the-art homomorphic encryption schemes. The simulation was performed using a 2048-bit key and data size, consistent with current industry standards, to improve key management efficiency. Additionally, the role-based hierarchy was implemented in a Salesforce cloud environment to ensure secure and restricted access control. |
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| ISSN: | 2673-8732 |