System and method of updating key based on communication cost and security damage cost
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United States of America Patent
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Nov 4, 2014
Issued Date -
N/A
app pub date -
May 18, 2009
filing date -
Jun 30, 2008
priority date (Note) -
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Abstract
A system and method of updating a key based on communication and security damage costs are provided. The key updating system for group communication between a plurality of group members, includes a key update cycle determining unit to determine a key update cycle based on a communication cost and a security damage cost, and a key updating unit to perform a key updating with respect to one or more group members of the group communication based on the determined key update cycle.
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