Method and apparatus for enhanced distribution of security keys
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United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
Mar 10, 2014
filing date -
Mar 15, 2013
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Abstract
In many secure communication systems, group keys are updated on a regular basis in order to maintain high security level. Decryption and encryption keys are typically updated simultaneously in policy enforcement points (PEPs). Such approach makes the respective communication system prone to dropping of network traffic. According to at least one embodiment, re-keying is performed by installing, at a first phase, a new decryption key at the PEPs without removing an old decryption key previously installed in the PEPs. At a second phase, a new encryption corresponding to the new decryption key is installed and an old encryption key corresponding to the old decryption is removed. At a third stage, the old decryption key and any other old decryption keys are removed from the PEPs.
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