Method and apparatus for software authentication

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7520811
APP PUB NO 20070149280A1
SERIAL NO

11680880

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for authenticating gaming machine software is disclosed. In one embodiment the method and apparatus is used to authenticate the contents of a removable media. Use of a removable media provides means to store large amounts of software on a single media to install software, perform software updates, diagnose gaming machines, authenticate software, or configure gaming machines. An authentication file may contain a listing of each file on the removable media and an associated hash value calculated with a hash function. The hash values are calculated and stored in an authentication file and encryption of the one or more hash values may occur. A hash value re-calculation is performed on each file at a later time to determine the hash value at the time of use. The re-calculated hash values are compared to the decrypted hash values stored in the authentication file.

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Patent Owner(s)

Patent OwnerAddress
IGT6355 SOUTH BUFFALO DRIVE LAS VEGAS NEVADA 89113 UNITED STATES OF AMERICA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benbrahim, Jamal Reno , US 80 7014
Chen, Xuedong Lidcombe, AU 35 769
LeMay, Steven G Reno, US 231 23273

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