Loading...
Please wait, while we are loading the content...
Similar Documents
Secure data deletion from persistent media
| Content Provider | CiteSeerX |
|---|---|
| Author | Reardon, Joel Ritzdorf, Hubert Capkun, Srdjan |
| Description | Secure deletion is the task of deleting data irrecoverably from a physical medium. In this work, we present a general approach to the design and analysis of secure deletion for persistent storage that relies on encryption and key wrap-ping. We define a key disclosure graph that models the adversarial knowledge of the history of key generation and wrapping. We introduce a generic update function and prove that it achieves secure deletion of data against a coercive attacker; instances of the update function implement the update behaviour of all arborescent data structures includ-ing B-Trees, extendible hash tables, linked lists, and oth-ers. We implement a B-Tree instance of our solution. Our implementation is at the block-device layer, allowing any block-based file system to be used on top of it. Using differ-ent workloads, we find that the storage and communication overhead required for storing and retrieving B-Tree nodes is small and that this therefore constitutes a viable solution for many applications requiring secure deletion from persistent media. in Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security. ACM |
| File Format | |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
