Strong WORM

10 years 3 months ago
Strong WORM
We introduce a Write-Once Read-Many (WORM) storage system providing strong assurances of data retention and compliant migration, by leveraging trusted secure hardware in close data proximity. This is important because existing compliance storage products and research prototypes are fundamentally vulnerable to faulty or malicious behavior, as they rely on simple enforcement primitives illsuited for their threat model. This is hard because tamperproof processing elements are significantly constrained in both computation ability and memory capacity – as heat dissipation concerns under tamper-resistant requirements limit their maximum allowable spatial gate-density. We achieve efficiency by (i) ensuring the secure hardware is accessed sparsely, minimizing the associated overhead for expected transaction loads, and (ii) using adaptive overheadamortized constructs to enforce WORM semantics at the throughput rate of the storage servers ordinary processors during burst periods. With a sin...
Radu Sion
Added 30 May 2010
Updated 30 May 2010
Type Conference
Year 2008
Authors Radu Sion
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