Method and server for issuing cryptographic keys to communication devices
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United States of America Patent
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Apr 30, 2019
Grant Date -
Dec 7, 2017
app pub date -
Jun 6, 2016
filing date -
Jun 6, 2016
priority date (Note) -
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Abstract
Method and server for issuing a cryptographic key. One method includes distributing a first group key to a first communication device and a second communication device. The method also includes distributing a security request to the first communication device. The method further includes receiving a security status from the first communication device responsive to transmitting the security request. The method also includes determining when security of the first communication device is compromised based on the security status. The method further includes distributing, via a server, the cryptographic key to the first communication device when the security of the first communication device is not compromised. The method also includes distributing, via the server, a second group key to the second communication device when the security of the first communication device is compromised and the first communication device cannot be fixed or deactivated.
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