Secure And Efficient Cloud Data Storage Using Deduplication And Blockchain Technology

Abstract

This Paper Presents A Secure And Efficient Cloud Data Storage Using Deduplication And Blockchain Technology To Reduce Storage Requirements And Enhance Data Security.Cloud Computing Has Become A Fundamental Backbone For Modern Organizations, But The Rapid And Continuous Growth Of Digital Data Has Led To Significant Challenges Such As Increased Storage Costs, Redundant Data Accumulation, And Heightened Security Risks. To Overcome These Limitations, This Project Proposes An Integrated Cloud Storage Framework That Combines Data Deduplication, Semantic Encryption, And Blockchain Technology Into A Unified Architecture. The Deduplication Mechanism Focuses On Identifying And Eliminating Duplicate Data At The Block Level, Ensuring That Only Unique Data Is Stored Within The System. Semantic Encryption Is Employed To Protect Sensitive Information, Ensuring That Encrypted Data Remains Confidential Even After Deduplication And Compression Processes. The Framework Is Designed Such That Unauthorized Users Cannot Derive Meaningful Information From Stored Ciphertexts, Thereby Safeguarding User Privacy. The Blockchain Technology Is Incorporated To Manage Authentication, Access Control, And Metadata In A Decentralized And Tamper-proof Manner. By Maintaining An Immutable Ledger Of Transactions And Access Logs, The System Ensures Transparency, Traceability, And Resistance Against Unauthorized Modifications.

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