Darrell W Anderson

US Patent:

8090951, Jan 3, 2012

Filed:

Jul 25, 2003

Appl. No.:

10/627270

Inventors:

Úlfar Erlingsson - San Francisco CA, US
Xavier Boyen - Palo Alto CA, US
Darrell Anderson - Durham NC, US
Wayne Gray - Sunnyvale CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

H04L 9/32

US Classification:

713176, 705 75, 283 13, 383176, 383308

Abstract:

Methods and systems are disclosed for providing secure transmissions across a network comprising a transmitting device and a receiving device. At the transmitting device, a stream of watermark bits is generated. Next, a plurality of watermarks is generated, each of the plurality of watermarks comprising an index number and a portion of the stream of watermark bits. The watermarks are inserted into each header of a plurality of outgoing packets. At the receiving device, the plurality of outgoing packets are received and it is determined if a received packet is valid based on the watermark in the header of the received packet. The stream of watermark bits may be generated using a stream cipher such as RC4, a block cipher such as 3DES in CBC mode, or other equivalent pseudo-random stream generating techniques.

US Patent:

8522034, Aug 27, 2013

Filed:

Aug 19, 2011

Appl. No.:

13/213943

Inventors:

Úlfar Erlingsson - San Francisco CA, US
Xavier Boyen - Palo Alto CA, US
Darrell Anderson - Durham NC, US
Wayne Gray - Sunnyvale CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

H04L 9/32

US Classification:

713176, 713151, 713160, 713161, 726 14

Abstract:

Methods and systems are disclosed for providing secure transmissions across a network comprising a transmitting device and a receiving device. At the transmitting device, a stream of watermark bits is generated. Next, a plurality of watermarks is generated, each of the plurality of watermarks comprising an index number and a portion of the stream of watermark bits. The watermarks are inserted into each header of a plurality of outgoing packets. At the receiving device, the plurality of outgoing packets are received and it is determined if a received packet is valid based on the watermark in the header of the received packet. The stream of watermark bits may be generated using a stream cipher such as RC4, a block cipher such as 3DES in CBC mode, or other equivalent pseudo-random stream generating techniques.

US Patent:

20100211618, Aug 19, 2010

Filed:

Feb 17, 2009

Appl. No.:

12/372733

Inventors:

Darrell ANDERSON - Palo Alto CA, US
David BROCK - Mountain View CA, US

Assignee:

Agilewaves, Inc. - Menlo Park CA

International Classification:

G06F 7/00
G06F 17/00

US Classification:

707812, 707E17044

Abstract:

Data series are stored at multiple resolutions in a computer-readable data storage medium. In particular, time series data values of the data series are received with associated timestamps. Corresponding storage elements in the computer-readable data storage medium are identified based on the time stamps. Aggregate values are determined by summing the time series data values. The time series data values stored in the corresponding storage elements are replaced by the aggregate values. Combined data values of the aggregate values are stored in storage elements in the computer-readable storage medium at a first resolution and second resolution, where the second resolution is half of the first resolution.

US Patent:

20130311782, Nov 21, 2013

Filed:

Jul 29, 2013

Appl. No.:

13/953339

Inventors:

Xavier Boyen - Palo Alto CA, US
Darrell Anderson - Durham NC, US
Wayne Gray - Sunnyvale CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

H04L 29/06

US Classification:

713176

Abstract:

Methods and systems are disclosed for providing secure transmissions across a network comprising a transmitting device and a receiving device. At the transmitting device, a stream of watermark bits is generated. Next, a plurality of watermarks is generated, each of the plurality of watermarks comprising an index number and a portion of the stream of watermark hits. The watermarks are inserted, into each header of a plurality of outgoing packets. At the receiving device, the plurality of outgoing packets are received and it is determined if a received packet is valid based on the watermark in the header of the received packet. The stream of watermark bits may be generated using a stream cipher such as RC4, a block cipher such as 3DES in CBC mode, or other equivalent pseudo-random stream generating techniques.