07181017 is referenced by 503 patents and cites 685 patents.

A system and method for communicating information between a first party and a second party, comprising identifying desired information, negotiating, through an intermediary, a comprehension function for obscuring at least a portion of the information communicated between the first party and the second party, communicating the encrypted information to the second party, and decrypting the encrypted information using the negotiated comprehension function. Preferably, the intermediary does not itself possess sufficient information to decrypt the encrypted information, thus allowing use of an “untrusted” intermediary. The comprehension function may be dynamic with respect to its response to the negotiated comprehension function, and thus permit limitations on the use of the information by the second party. For example, the decryption of the encrypted information may be time limited.

Title
System and method for secure three-party communications
Application Number
10/106138
Publication Number
7181017 (B1)
Application Date
March 25, 2002
Publication Date
February 20, 2007
Inventor
Steven M Hoffberg
West Harrison
NY, US
David P Felsher
Trumbull
CT, US
Robert H Nagel
New York
NY, US
Agent
Milde & Hoffberg
Assignee
David Felsher
CT, US
IPC
H04L 9/00
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