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System and method to merge encrypted signals in distributed communication system

  • US 9,313,181 B2
  • Filed: 02/28/2014
  • Issued: 04/12/2016
  • Est. Priority Date: 02/28/2014
  • Status: Active Grant
First Claim
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1. A computer implemented method for data privacy in a distributed communication system comprising a plurality of client terminals, the method comprising:

  • receiving, from each of the plurality of client terminals, a group of key switch hints generated by said each of the client terminals, wherein each group of key switch hints comprises a key switch hint corresponding to each other one of the client terminals;

    receiving, from each of the client terminals, an encrypted data stream;

    switching each of the encrypted data streams using the key switch hints corresponding to said each other one of the client terminals to generate a respective switched data set for said each of the encrypted data streams, wherein each switched data set comprises a plurality of encrypted data representations of said each of the encrypted data streams; and

    generating an encrypted output data stream for each of the client terminals using the switched data set for each encrypted data stream.

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