Method and system for dynamic server document encryption

  • US 6,061,448 A
  • Filed: 04/01/1997
  • Issued: 05/09/2000
  • Est. Priority Date: 10/24/1996
  • Status: Expired due to Term
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First Claim
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1. A method for secure document delivery from a sender over a wide area network, comprising the steps of:

  • a sender encrypting a document using a secret key;

    the sender contacting a Delivery Server to query a public key associated with an intended recipient;

    the Delivery Server dynamically retrieving the public key in real time from a certificate authority;

    the Delivery Server transmitting the public key back to the sender;

    the sender encrypting the secret key with the public key; and

    the sender transmitting the encrypted document and the encrypted secret key to the Delivery Server for transmission to the recipient.

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