Back to results
US 6,061,448 AGranted
Method and system for dynamic server document encryption
AssigneeTumbleweed Communications Corp.
InventorsJeffrey C. Smith, Jean-Christophe Bandini
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeTumbleweed Communications Corp.
InventorsJeffrey C. Smith, Jean-Christophe Bandini
Estimating the term…
A method and system are provided for secure document delivery over a wide area network, such as the Internet. A sender directs a Delivery Server to retrieve an intended recipient's public key. The Delivery Server dynamically queries a certificate authority and retrieves the public key. The public key is transmitted from the Delivery Server to the sender. The sender encrypts the document using a secret key and then encrypts the secret key using the public key. Both encrypted document and encrypted secret key are uploaded to the Delivery Server, and transmitted to the intended recipient. The intended recipient then uses the private key associated with the public key to decrypt the secret key, and uses the secret key to decrypt the document. In an alternative, equally preferred embodiment of the invention, the sender uses the public key to encrypt the document. In yet another embodiment, the server transmits the document to the Delivery Server for encryption.
A method for secure document delivery from a sender over a wide area network, comprising the steps of:
A method for secure document delivery from a sender over a wide area network, comprising the steps of:
A method for secure document delivery from a sender over a wide area network, comprising the steps of:
A system for secure document delivery from a sender over a wide area network, comprising:
Dependencies are inferred from the claim text.