SERVER SYSTEMS FOR DISTRIBUTED CRYPTOGRAPHIC PROTOCOLS
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United States of America Patent
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app pub date -
Oct 30, 2015
filing date -
Oct 30, 2015
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Abstract
A server system for implementing a distributed cryptographic protocol includes a machine management server which comprises a current virtual machine configured to implement the protocol using a set of communication keys and state information for the protocol. The system further includes a memory and a refresh server. The system is configured, for each of successive new time periods in operation of the protocol, to perform a refresh operation wherein: the refresh server retrieves the state information from the memory, generates a new set of communication keys, and sends the state information and new set of keys to the machine management server; the machine management server configures a new virtual machine for implementing the protocol, whereby the new virtual machine receives the new set of keys and state information sent by the refresh server; and the new virtual machine assumes operation as the current virtual machine for the new time period and stores state information for that time period in the memory.
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