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Policy-based security management for large dynamic groups: an overview of the DCCM project

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6 Author(s)

The Dynamic Cryptographic Context Management (DCCM) project efficiently provides security for very large, dynamically changing groups of participants. The DCCM system has two novel distinguishing characteristics. First, policy plays a key role in DCCM. Groups at all levels have policies. These policies are represented; they are negotiated; they are managed; and a cryptographic context-an unambiguous set of mechanisms and configuration-is created to make particular interactions possible subject to these policies. Second, DCCM implements a scalable key management system based on One-way Function Trees (OFT) that can handle group sizes up to 100000 members and can dynamically handle members entering and leaving groups

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DARPA Information Survivability Conference and Exposition, 2000. DISCEX '00. Proceedings  (Volume:1 )

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