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Multi-Layer Cloud Security Architecture using Encryption and Access Control Mechanisms

Abstract

Cloud computing has become an essential infrastructure for modern digital ecosystems, enabling scalable storage, distributed processing, and on-demand resource provisioning. However, the increasing reliance on cloud platforms has introduced significant security challenges, including data breaches, unauthorized access, insider threats, and insecure interfaces. Traditional single-layer security models are no longer sufficient to protect sensitive data in complex multi-tenant cloud environments. To address these challenges, this research proposes a Multi-Layer Cloud Security Architecture that integrates advanced encryption techniques and robust access control mechanisms

The proposed architecture is designed with multiple security layers, including data encryption layer, authentication layer, access control layer, network security layer, and monitoring layer. Each layer plays a specific role in ensuring confidentiality, integrity, availability, and accountability of cloud resources. Encryption techniques such as Advanced Encryption Standard (AES), RSA, and hybrid encryption models are applied to protect data at rest and in transit. Access control mechanisms including Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC), and policy-driven authorization models are implemented to regulate user permissions dynamically

The framework also incorporates real-time monitoring and intrusion detection capabilities to identify suspicious activities. Experimental analysis demonstrates that the proposed multi-layer architecture significantly enhances cloud security, reduces unauthorized access risks, and improves overall system resilience. The study provides a comprehensive approach to securing cloud environments through layered defense strategies

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