ISSN : 1796-217X
Volume : 2    Issue : 6    Date : December 2007

Fine-Grained and Scalable Message Protection in Sensitive Organizations
Joon S. Park and Ganesh Devarajan
Page(s): 64-75
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Today electronic messaging services are indispensable to individuals and organizations. If a
message contains sensitive information, the integrity and confidentiality of the contents created by
individual users should be maintained in an effective manner. Therefore, there is an urgent need for
new mechanisms to support the requirement. In this paper we focus on the message protection in
the organization-to-organization service, while many other researchers have worked on the
person-to-person service. Our approaches can provide effective integrity verification, tracking
mechanisms, and confidentiality at the user-level in a scalable manner with fine granularity.
Furthermore, we use a set of session keys for each message to provide more secure
communications, maintaining scalable key management by employing a key hierarchy. We
describe the mechanisms of our approaches and show their feasibility by describing a prototype
system that we developed.

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