Brad W Kollmyer

US Patent:

7376831, May 20, 2008

Filed:

Aug 25, 2006

Appl. No.:

11/467510

Inventors:

Brad Kollmyer - Lynden WA, US
Brian A. Baker - Mercer Island WA, US
Eric Bradley Shapiro - Ann Arbor MI, US
Aric Kollmyer - Mercer Island WA, US
Mike Rutman - Gainesville FL, US
Charles Duncan MacLean - Claremont CA, US
Dan Robertson - Ann Arbor MI, US
Neal Taylor - Yorba Linda CA, US
Dick Hunsche - Ann Arbor MI, US
Amanda Walker - Reston VA, US

Assignee:

Widevine Technologies, Inc. - Seattle WA

International Classification:

H04L 9/00

US Classification:

713154

Abstract:

An apparatus, system, and method are directed towards parsing and selectively encrypting different portions of data in real-time, decrypting the encrypted data in real-time, and passing the data to a media player on a client computer or other network capable device. Data in a network packet may be parsed into payload and non-payload portions. The payload portion of the packet data may then be examined to determine whether a predefined type of the data is recognized. For example, in one embodiment, the predefined data type may be media content. If the payload portion is recognized as a predefined data type, then it may be selectively encrypted. The selectively encrypted payload portion and non-payload portion of the packet may then be combined, such that the non-payload portion may be employed by firewalls, proxies, and/or NATs to route the packet towards the client computer or other network capable device.

US Patent:

7165175, Jan 16, 2007

Filed:

Sep 6, 2000

Appl. No.:

09/656166

Inventors:

Brad Kollmyer - Lynden WA, US
Brian Baker - Bellevue WA, US
Eric Shapiro - Ann Arbor MI, US
Aric Kollmyer - Mercer Island WA, US
Mike Rutman - Gainesville FL, US
Duncan MacLean - Santa Monica CA, US
Dan Robertson - Ann Arbor MI, US
Neal Taylor - Yorba Linda CA, US
Dick Hunsche - Ann Arbor MI, US
Amanda Walker - Reston VA, US

Assignee:

Widevine Technologies, Inc. - Seattle WA

International Classification:

H04L 9/00

US Classification:

713154, 709232

Abstract:

An apparatus and method for selectively encrypting portions of data sent over a network between a server and a client. The apparatus includes parsing means for separating a first portion of the data from a second portion of the data, encrypting means for encrypting only of the first portion of the data, and combining means for combining the encrypted first portion of the data with the second portion of the data, wherein the second portion of the data is not encrypted. The apparatus further includes decrypting means installed at the client for decrypting the encrypted portion of the data. The apparatus is platform independent in terms of media format and data protocol. The encryption unit encrypts data transparently to the client based on the media format. The apparatus of the invention is implemented as one of an application and a plug-in object. The method for selectively encrypting portions of data which differ from each other in at least on characteristic sent over a network between a server and a client includes parsing the data into a first and second portion, encrypting only the first portion of the data, and sending the encrypted first portion and the second portion of the data over the network to the client.