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System and method for secure three-party communications

  • US 9,419,951 B1
  • Filed: 12/01/2014
  • Issued: 08/16/2016
  • Est. Priority Date: 03/23/2001
  • Status: Expired due to Fees
First Claim
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1. A system for processing an encrypted message, comprising:

  • a first memory location configured to store an encrypted message associated with a first asymmetric encryption key pair comprising a first public encryption key and a first private encryption key;

    a second memory location configured to store a second public encryption key associated with a second asymmetric encryption key pair comprising the second public encryption key and a second private encryption key;

    at least one automated processor configured to;

    (a) establish an asymmetric cryptographic session key comprising a first session key and a second session key; and

    (b) process the encrypted message from a first encrypted form to a second encrypted form, in an integral process substantially without intermediate decryption of the encrypted message to a plaintext message, using a composite key derived at least in part from the first private encryption key, a second public encryption key, and the first session key; and

    a communication port configured to communicate information to define the at least one asymmetric cryptographic session key, and to communicate the encrypted message in the second encrypted form.

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