CA2456635A1 - Process verification - Google Patents

Process verification Download PDF

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Publication number
CA2456635A1
CA2456635A1 CA002456635A CA2456635A CA2456635A1 CA 2456635 A1 CA2456635 A1 CA 2456635A1 CA 002456635 A CA002456635 A CA 002456635A CA 2456635 A CA2456635 A CA 2456635A CA 2456635 A1 CA2456635 A1 CA 2456635A1
Authority
CA
Canada
Prior art keywords
gaming
software program
gaming software
gaming machine
game
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002456635A
Other languages
French (fr)
Other versions
CA2456635C (en
Inventor
Warner Cockerille
Steven G. Lemay
Robert Breckner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Game Technology
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2456635A1 publication Critical patent/CA2456635A1/en
Application granted granted Critical
Publication of CA2456635C publication Critical patent/CA2456635C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
    • G07F17/3241—Security aspects of a gaming system, e.g. detecting cheating, device integrity, surveillance

Abstract

A disclosed gaming machine (2) provides methods and apparatus of verifying the authenticity of gaming software stored in and executed from RAM (106) on the gaming machine (2). When presenting a game on the gaming machine (2), a master gaming controller (101) may dynamically load gaming software applications into RAM (106) and dynamically unload gaming software applications from RAM (106).
The authenticity of the gaming software applications temporarily stored in RAM
(106) may be verified by using methods to compare it with certified gaming software stored on one or more local (114) or remote file storage devices (116) accessible to the master gaming controller on the gaming machine (2).
The verification process may be used to satisfy gaming regulatory entities within various gaming jurisdictions that require certified gaming software to be operating on the gaming machine (2) at all times as well as to prevent tampering with the gaming machine (2).

Claims (64)

  1. What is claimed is:
    A method of verifying the authenticity of a first gaming software program temporarily stored in RAM of a gaming machine having a master gaming controller for executing said gaming software program, the method comprising:
    (a) identifying the first gaming software program as currently stored in the gaming machine RAM;
    (b) identifying a second gaming software program stored on a file storage device;
    (c) comparing at least a first portion of the second gaming software program with a first portion of the first gaming software program as currently stored in the gaming machine RAM, wherein the first portion of the gaming software program is a portion of the first gaming software program that does not change during execution of said first gaming software program.
  2. 2. The method of claim 1, wherein the first portion of the first gaming software program includes at least a static header of the first gaming software program.
  3. 3. The method of claim l, wherein the first portion of the first gaming software program includes at least executable code of the first gaming software program.
  4. 4. The method of claim l, wherein the file storage device is located on the gaming machine.
  5. 5. The method of claim 1, wherein the file storage device is a remote file storage device.
  6. 6. The method of claim 5, wherein the remote file storage device is a game server.
  7. 7. The method of claim 1, wherein the second gaming software program is certified for execution on the gaming machine in one or more gaming jurisdictions by a regulatory entity within each of the gaming jurisdictions.
  8. 8. The method of claim 1, further comprising:
    generating an error condition when the first portion of the second gaming software program does not match the first portion of the first gaming software program stored in RAM.
  9. 9. The method of claim 1, further comprising:
    comparing a plurality of portions of the second gaming software program with a plurality of portions of the first gaming software program as currently stored in the gaming machine RAM.
  10. 10. The method of claim 9, further comprising:
    generating an error condition when at least one of the plurality of compared portions of the second gaming software program does not match at least one of the plurality of portions of the first gaming software program stored in R.AM.
  11. 11. The method of claim 1, further comprising:
    identifying an executable file name for the first gaming software program.
  12. 12. The method of claim 1 l, further comprising:
    identifying the second gaming software program using the executable file name.
  13. 13. The method of claim 1, wherein the second gaming software program includes a substantially identical copy of the executable code of the first gaming software program.
  14. 14. The method of claim l, further comprising:
    identifying a memory location in RAM of the first gaming software program.
  15. 15. The method of claim l, further comprising:
    identifying the first gaming software program from a directory of processes scheduled for execution on the gaming machine.
  16. 16. The method of claim 1, further comprising:
    selecting the second gaming software program from a list of certified gaming software programs wherein the certified gaming software programs are stored on one or more file storage devices.
  17. 17. The method of claim 1, further comprising:
    presenting a game of chance on the gaming machine.
  18. 18. The method of claim 1, wherein the game of chance is a video slot game, a mechanical slot game, a lottery game, a video poker game, a video black jack game, a video card game, a video bingo game, a video keno game, and a video pachinko game.
  19. 19. The method of claim 1, wherein the first gaming software program as currently stored in the gaming machine RAM is managed using an operating system using a virtual paging system.
  20. 20. The method of claim 1, wherein the first gaming software program as currently stored in the gaming machine RAM is managed using a Unix-based operating system.
  21. 21. A computer readable medium containing computer-readable instructions for verifying the authenticity of a first gaming software program stored in RAM of a gaming machine having a master gaming controller for executing said gaming software program, said computer readable medium comprising:
    (a) computer readable code for identifying the first gaming software program as currently stored in the gaming machine RAM;
    (b) computer readable code for identifying a second gaming software program stored on a file storage device;
    (c) computer readable code for comparing at least a first portion of the second gaming software program with a first portion of the first gaming software program as currently stored in the gaming machine RAM, wherein the first portion of the gaming software program is a portion of the first gaming software program that does not change during execution of said first gaming software program.
  22. 22. The method of claim 21, wherein the first portion of the first gaming software program includes at least a static header of the first gaming software program.
  23. 23. The method of claim 21, wherein the first portion of the first gaming software program includes at least executable code of the first gaming software program.
  24. 24. The method of claim 21, wherein the second gaining software program is certified for execution on the gaming machine in one or more gaming jurisdictions by a regulatory entity within each of the gaming jurisdictions.
  25. 25. The method of claim 21, further comprising:

    computer readable code for generating an error condition when the first portion of the second gaming software program does not match the first portion of the first gaming software program stored in RAM.
  26. 26. The method of claim 21, further comprising:
    computer readable code for comparing a plurality of portions of the second gaming software program with a plurality of portions of the first gaming software program as currently stored in the gaming machine RAM.
  27. 27. The method of claim 26, further comprising:
    computer readable code for generating an error condition when at least one of the plurality of compared portions of the second gaming software program does not match at least one of the plurality of portions of the first gaming software program stored in RAM.
  28. 28. The method of claim 21, further comprising:
    identifying an executable file name for the first gaming software program.
  29. 29. The method of claim 28, further comprising:
    identifying the second gaming software program using the executable file name.
  30. 30. The method of claim 21, wherein the second gaming software program includes a substantially identical copy of the executable code of the first gaming software program.
  31. 31. The method of claim 21, further comprising:
    identifying a memory location in RAM of the first gaming software program.
  32. 32. The method of claim 21, further comprising:
    identifying the first gaming software program from a directory of processes scheduled for execution on the gaming machine.
  33. 33. The method of claim 21, further comprising:
    selecting the second gaming software program from a list of certified gaming software programs wherein the certified gaming software programs are stored on one or more file storage devices.
  34. 34. A method of verifying the authenticity of a process stored in RAM of a gaming machine having a master gaming processor for executing said process, the method comprising:
    (a) identifying a list of processes scheduled for execution on the gaming machine RAM;
    (b) selecting one process for verification from said list of processes;
    (c) identifying a file name and current RAM location of the selected process;
    (d) at the current RAM location, inspecting said selected process to identify at least a first portion of the process, which first portion of the process is a portion of the process that does not change during execution of the process;
    (e) identifying one or more gaming software programs stored on one or more file storage devices, which gaming software programs have the same name as the selected process;
    (f) for each of the one or more identified gaming software programs, inspecting the gaming software programs to determine whether at least the first portion of the process is present; and (g) generating a notification if none of the one or more gaming software programs contains the first portion of the selected process.
  35. 35. The method of claim 34, wherein the gaming software programs are certified for execution on the gaming machine in one or more gaming jurisdictions by a regulatory entity within each of the gaming jurisdictions
  36. 36. The method of claim 34, further comprising:
    presenting a game of chance on the gaming machine.
  37. 37. The method of claim 34, wherein the game of chance is a video slot game, a mechanical slot game, a lottery game, a video poker game, a video black jack game, a video card game, a video bingo game, a video keno game and a video pachinko game.
  38. 38. The method of claim 34, wherein the file storage devices are at least one of file storage devices located on the gaming machine, remote file storage devices or combinations thereof.
  39. 39. The method of claim 34, further comprising:
    calling an attendant if none of the one or more gaming software programs contains the first portion of the selected process.
  40. 40. The method of claim 34, further comprising:

    shutting down the gaming machine if none of the one or more gaming software programs contains the first portion of the selected process
  41. 41. A method of verifying the authenticity of a first gaming software program stored in RAM of a gaming device associated with a gaming machine, said gaming device having a gaming controller for executing said first gaming software program, the method comprising:
    (a) identifying the first gaming software program as currently stored in the gaming device RAM;
    (b) identifying a second gaming software program stored on a file storage device;
    (c) comparing at least a first portion of the second gaming software program with a first portion of the first gaming software program as currently stored in the gaming device RAM, wherein the first portion of the gaming software program is a portion of the first gaming software program that does not change during execution of said first gaming software program.
  42. 42. The method of claim 41, wherein the gaming device is at least one of a player tracking unit, a player tracking server, a game server and a hand-held gaming device.
  43. 43. A method of initializing a gaming system that stores gaming software in RAM
    on a gaming machine used to present one or more games of chance to a game player, the method comprising:
    (a) loading a list of gaming software file names from a static memory storage device on the gaming machine;
    (b) loading a code authenticator program used to compare the list of gaming software file names to names of files stored on a memory storage device on the gaming machine;
    (c) validating the code authenticator program;
    (d) comparing the list of gaming software ale names with the names of files stored on the memory storage device;
    (e) when one or more file names on the list of gaming software file names does not match the names of one or more files stored on the memory storage device, halting the launch of the gaming system on the gaming machine.
  44. 44. The method of claim 43, further comprising:

    launching a code comparator program used to compare at least a first portion of a first gaming program stored in RAM with a first portion of a second gaming software program stored on the memory storage device.
  45. 45. The method of claim 43, further comprising:
    when the code authenticator program is not validated, halting the launch of the gaming system on the gaming machine.
  46. 46. The method of claim 43, wherein each file name on the list of game file names corresponds to a gaming software program certified for execution on the gaming machine in one or more gaming jurisdictions by a regulatory entity within each of the gaming jurisdictions.
  47. 47. A gaming machine comprising:
    a master gaming controller that controls a game of chance played on the gaming machine, said master gaming controller comprising:
    (i) one or more logic devices designed or configured to execute a plurality of gaming software programs used to present said game of chance on the gaming machine;
    (ii) a RAM that stores one or more of the plurality of gaming software programs during execution; and gaming logic for comparing a first portion of a first gaming software program as currently stored in the gaming machine RAM with at least a first portion of a second gaming software program.
  48. 48. The gaming machine of claim 47, wherein the second gaming software program is certified for execution on the gaming machine in one or more gaming jurisdictions by a regulatory entity within each of the gaming jurisdictions.
  49. 49. The gaming machine of clam 47, wherein the second gaming software program is substantially identical copy of the first gaming software program.
  50. 50. The gaming machine of claim 47, further comprising:
    a file storage device storing said second gaming software program.
  51. 51. The gaming machine of claim 50, wherein the file storage device is selected from the group consisting of a hard drive, a CD-ROM drive, a CD-DVD drive, compact flash, smart media, disk-on-chip and removable media.
  52. 52. The gaming machine of claim 50, wherein the file storage device is located on the gaming machine.
  53. 53. The gaming machine of claim 50, wherein the file storage device is remote to the gaming machine.
  54. 54. The gaming machine of claim 47, further comprising:
    gaming logic designed to locate the second gaming software program in a file structure with a plurality of file names.
  55. 55. The gaming machine of claim 54, further comprising:
    a static memory storage device storing the gaming logic designed to locate the second gaming software program.
  56. 56. The gaming machine of claim 55, wherein the static memory storage device is selected from the group consisting of an EPROM, a flash memory, a non-volatile memory storage device.
  57. 57. The gaming machine of claim 55, further comprising:
    a list of gaming software file names stored on the static memory storage device wherein the gaming software files on the list are approved for execution on the gaming machine.
  58. 58. The gaming machine of claim 47, wherein the game of chance is a video slot game, a mechanical slot game, a lottery game, a video poker game, a video black jack game, a video card game, a video bingo game, a video keno game and a video pachinko game.
  59. 59. The gaming machine of claim 47, wherein the gaming software programs stored in RAM changes as a function of time.
  60. 60. A gaming machine network comprising:
    a plurality of file storage devices storing gaming software programs;
    a plurality of gaming machines, each gaming machine comprising:
    a master gaming controller that controls a game of chance played on the gaming machine, said master gaming controller comprising:

    (i) one or more logic devices designed or configured to execute a plurality of gaming software programs used to present said game of chance on the gaming machine;
    (ii) a RAM that stores one or more of the plurality of gaming software programs during execution;
    gaming logic for comparing a first portion of a first gaming software program as currently stored in the gaming machine RAM with at least a first portion of a second gaming software program stored on at least one of the plurality of file storage devices; and a network allowing communication between the file storage devices and the plurality of gaming machines.
  61. 61. The gaming machine network of claim 60, wherein the network is at least one of the Internet or an intranet.
  62. 62. The gaming machine network of claim 60, wherein the second gaming software program is certified for execution on the gaming machine in one or more gaming jurisdictions by a regulatory entity within each of the gaming jurisdictions.
  63. 63. The gaming machine network of claim 60, further comprising:
    gaming logic designed to locate the second gaming software program stored on at least one of the file storage devices.
  64. 64. The gaming machine network of claim 60, wherein the game of chance is a video slot game, a mechanical slot game, a lottery game, a video poker game, a video black jack game, a video card game, a video bingo game, a video lceno game and a video pachinko game.
CA2456635A 2001-08-08 2002-08-06 Process verification Expired - Fee Related CA2456635C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/925,098 US6685567B2 (en) 2001-08-08 2001-08-08 Process verification
US09/925,098 2001-08-08
PCT/US2002/025083 WO2003013677A1 (en) 2001-08-08 2002-08-06 Process verification

Publications (2)

Publication Number Publication Date
CA2456635A1 true CA2456635A1 (en) 2003-02-20
CA2456635C CA2456635C (en) 2011-08-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2456635A Expired - Fee Related CA2456635C (en) 2001-08-08 2002-08-06 Process verification

Country Status (6)

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US (3) US6685567B2 (en)
EP (1) EP1427494A4 (en)
AU (2) AU2002326552C1 (en)
CA (1) CA2456635C (en)
WO (1) WO2003013677A1 (en)
ZA (1) ZA200400913B (en)

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EP1427494A4 (en) 2006-09-20
CA2456635C (en) 2011-08-09
US20090282489A1 (en) 2009-11-12
US20030032485A1 (en) 2003-02-13
WO2003013677A1 (en) 2003-02-20
EP1427494A1 (en) 2004-06-16
US7996916B2 (en) 2011-08-09

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