Method and apparatus for software authentication
US7520811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2007 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Mar 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00782
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.