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Abstract
As cloud computing infrastructures evolve, multi-cloud architectures are increasingly leveraged to optimize storage, fault tolerance, and operational resilience. However, security measures—particularly encryption—introduce performance tradeoffs that must be strategically managed. This paper investigates the computational overhead imposed by encryption techniques on multi-cloud storage systems and evaluates their impact on performance metrics including latency, throughput, and cost. The study compares symmetric and asymmetric encryption mechanisms across diverse multi-cloud platforms. Empirical results highlight a critical balance between data confidentiality and system efficiency. Recommendations for adaptive encryption schemes and workload-aware resource provisioning are proposed to optimize security-performance tradeoffs in practical implementations.
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