System and method for secure three-party communications

  • US 8,316,237 B1
  • Filed: 01/10/2011
  • Issued: 11/20/2012
  • Est. Priority Date: 03/23/2001
  • Status: Expired due to Fees
First Claim
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1. A transcription device, comprising:

  • an automated communication port configured to receive a first message representing an encrypted communication associated with a first set of asymmetric keys, to receive a transcription key, and to transmit a second message representing the encrypted communication associated with a second set of asymmetric keys, the first and second sets of encryption keys being distinct;

    a memory; and

    an automated processor, configured to communicate through the automated communication port and with the memory, to receive the first message, receive the transcription key, automatically transcript the first message into the second message, and to transmit the second message, wherein the automated processor does not store as a part of the transcription any decrypted representation of the encrypted communication, and the transcription key is employed without revealing any secret cryptographic information usable for decrypting the first message or the second message.

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