12/18/2015. secure cloud storage systems alptekin küpçü, Öznur Özkasap ertem esiner, adilet...

04/21/23

Secure Cloud Storage Systems

Alptekin Küpçü, Öznur ÖzkasapErtem Esiner, Adilet Kachkeev

Department of Computer Engineering, Koç University, İstanbul

Security on Cloud Storage

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Integrity

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“We will have no liability to you for any unauthorized access or use, corruption, deletion, destruction or loss of any of Your Content or Applications” –Amazon S3 license

“Google and Partners DO NOT warrant that [...] Google services will be uninterrupted, timely, secure, or error-free.”–Google Apps Docs (Enterprise Edition) license

Current Generation Cloud Storage

Alteration

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Alteration

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Alteration

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11

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Alteration by block

Alteration by block

1100

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We provide: underlying data structure : optimized implementation of

rank-based skip list(together with authenticated and ordinary skip lists) as a library.

Optimized proof mechanism between client and server (prototype)

What is next: Optimizations with parallel I/O and cryptographic

computation Implementation on mobile devices Energy consumption measurements and application of

energy-efficiency methodologies

Project Summary

Questions

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