Michael Parker Wise

US Patent:

7602908, Oct 13, 2009

Filed:

Dec 22, 2004

Appl. No.:

11/019124

Inventors:

David F Pare - San Francisco CA, US
David L. Biderman - San Francisco CA, US
Stephen Loomis - Leesburg VA, US
Scott K. Brown - Ashburn VA, US
Michael Wise - Washington DC, US
David Wexelblat - Vienna VA, US
Conor P. Cahill - Waterford VA, US
David S. Bill - San Francisco CA, US

Assignee:

AOL LLC - Dulles VA

International Classification:

H04K 1/04
H04N 7/00
H04N 5/913
H04N 7/167
H04L 9/18

US Classification:

380 37, 380 36, 380200, 380210, 380239, 386 20, 386 94, 713150

Abstract:

An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e. g. , using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

US Patent:

7734042, Jun 8, 2010

Filed:

Dec 22, 2004

Appl. No.:

11/019110

Inventors:

David F. Pare - San Francisco CA, US
David L. Biderman - San Francisco CA, US
Stephen E. Loomis - Leesburg VA, US
Scott K. Brown - Ashburn VA, US
Michael Wise - Washington DC, US
David Wexelblat - Vienna VA, US
Conor P. Cahill - Waterford VA, US
David S. Bill - San Francisco CA, US

Assignee:

AOL Inc. - Dulles VA

International Classification:

H04K 1/00
H04L 9/00
H04N 7/167

US Classification:

380 37, 380 28, 380 44, 380201

Abstract:

An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e. g. , using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

US Patent:

8284931, Oct 9, 2012

Filed:

May 24, 2010

Appl. No.:

12/786129

Inventors:

David F. Pare - San Francisco CA, US
David L. Biderman - San Francisco CA, US
Stephen E. Loomis - Leesburg VA, US
Scott K. Brown - Ashburn VA, US
Michael Wise - Washington DC, US
David Wexelblat - Vienna VA, US
Conor P. Cahill - Waterford VA, US
David S. Bill - San Francisco CA, US

Assignee:

Facebook, Inc. - Menlo Park CA

International Classification:

H04K 1/00
H04L 9/00
H04N 7/167

US Classification:

380 37, 380 28, 380 44, 380201

Abstract:

An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e. g. , using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

US Patent:

8634552, Jan 21, 2014

Filed:

Oct 9, 2009

Appl. No.:

12/576784

Inventors:

David F. Pare - San Francisco CA, US
David L. Biderman - San Jose CA, US
Stephen Loomis - Leesburg VA, US
Scott K. Brown - Marietta GA, US
Michael Wise - Washington DC, US
David Wexelblat - Vienna VA, US
Conor P. Cahill - Waterford VA, US
David S. Bill - San Francisco CA, US

Assignee:

AOL Inc. - Dulles VA

International Classification:

H04K 1/04
H04L 9/00
H04N 7/169

US Classification:

380 37, 380 42, 380210, 380239

Abstract:

An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e. g. , using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

US Patent:

20130173921, Jul 4, 2013

Filed:

Sep 14, 2012

Appl. No.:

13/618874

Inventors:

DAVID F. PARE - San Francisco CA, US
DAVID L. BIDERMAN - San Francisco CA, US
STEPHEN E. LOOMIS - Leesburg VA, US
SCOTT K. BROWN - Ashburn VA, US
MICHAEL WISE - Washington DC, US
DAVID WEXELBLAT - Vienna VA, US
CONOR P. CAHILL - Waterford VA, US
DAVID S. BILL - San Francisco CA, US

International Classification:

H04L 9/08

US Classification:

713168

Abstract:

An initialization vector (IV) is employed to decrypt a block of a stream that has been encrypted with Cypher Block Chaining (CBC) encryption, without requiring decryption of previous blocks within the stream. For example, a listener who accesses a distribution point to retrieve encrypted content authenticates himself to an application server that regulates access to encrypted content on the distribution point, and responsively receives a key. The listener then requests access to a reference point within the encrypted content stream somewhere after its beginning (e.g., using preview clips). The distribution point relates the reference point to a corresponding block of the encrypted stream, and identifies an IV previously used for encryption of that block. The distribution point provides the associated encrypted block of content and the IV to the listener to enable mid-stream rendering of the encrypted content, without requiring the listener to decrypt previous blocks within the encrypted stream.

US Patent:

20150338521, Nov 26, 2015

Filed:

Jun 9, 2015

Appl. No.:

14/735052

Inventors:

- Dallas TX, US
Louis H.M. Jandrell - San Rafael CA, US
Michael D. Wise - Dallas TX, US

International Classification:

G01S 19/24
G01S 5/02

Abstract:

A method and system for determining a geolocation of an object includes collecting a positioning signal including a predetermined message data segment. A time of arrival of the predetermined message data segment may be determined in the positioning signal. Information based on the time of arrival may be provided for determination of a geolocation of an object. The time of arrival of the predetermined message data segment may be determined based on a time search for the predetermined message data segment in the positioning signal.