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On Multi-Level Secure structured content: A cryptographic key management — Independent XML schema for MLS content

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1 Author(s)
Kiviharju, M. ; Electron. & Inf. Technol. Div., Finnish Defence Forces Tech. Res. Centre, Riihimaki, Finland

Multi-Level Security, MLS, refers to handling information from different levels of security classification securely by people from different levels of clearance. We propose a structured document format to host data from different classification levels (e.g. RESTRICTED and SECRET) in the same, modifiable document. The document access control is enforced cryptographically - content and access control information is encrypted and digitally signed, but the document structure itself is independent of the adjoining key management architecture. We detail the different security-related metadata and sanitization procedures needed for passing data from a common storage to a user with lower clearance.

Published in:

Communications and Information Systems Conference (MCC), 2012 Military

Date of Conference:

8-9 Oct. 2012