06061448 is referenced by 417 patents and cites 40 patents.

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.

Title
Method and system for dynamic server document encryption
Application Number
8/829976
Publication Number
6061448
Application Date
April 1, 1997
Publication Date
May 9, 2000
Inventor
Jean Christophe Bandini
Cupertino
CA, US
Jeffrey C Smith
Menlo Park
CA, US
Agent
Michael A Glenn
James D Ivey
Assignee
Tumbleweed Communications
CA, US
IPC
H04L 9/00
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