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US Patent 7558387 Gathering randomness in a wireless smart card reader

Patent 7558387 was granted and assigned to BlackBerry on July, 2009 by the United States Patent and Trademark Office.

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Patent
Patent
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Patent attributes

Current Assignee
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
75583870
Patent Inventor Names
Michael K. Brown0
Neil Adams0
Michael S. Brown0
Herb Little0
Michael McCallum0
Date of Patent
July 7, 2009
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Patent Application Number
111066330
Date Filed
April 15, 2005
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Patent Primary Examiner
‌
Hosuk Song
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Patent abstract

A device coupled to a smart card reader may request random data from a smart card inserted into the smart card reader, and the smart card reader may incorporate the random data into its randomness pool. A device having a source of random data may have a driver installed thereon for another device and the driver may extract random data from the source and transmit it securely over a wireless communication link to the other device. The other device, which may be a smart card reader, may incorporate the extracted random data into its randomness pool. A smart card reader may incorporate traffic received from a smart card inserted therein into its randomness pool.

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