Title:
SOFTWARE PROTECTION
Document Type and Number:
WIPO Patent Application WO2004027678
Kind Code:
A3
Abstract:
Software on a wireless device is protected by an arrangement in which an identifier (1234) is derived from the hardware of the device on which the software is to be run. The identifier (1234) is sent to a server which derives a derived identifier (WXYZ) by applying a function g to the identifier (1234). The derived identifier is returned to the device which executes a function h. Function h is the inverse of function g. Comparison with the original identifier thus confirms that operation of the software is authorised. In the event that it is not, the server does not send back a derived identifier.
Inventors:
SAFA JOHN ARAM (GB)
Application Number:
PCT/GB2003/004130
Publication Date:
July 01, 2004
Filing Date:
September 19, 2003
Export Citation:
Assignee:
BITARTS LTD (GB)
SAFA JOHN ARAM (GB)
SAFA JOHN ARAM (GB)
International Classes:
G06F21/10; (IPC1-7): G06F1/00
Domestic Patent References:
| WO1999026123A1 | 1999-05-27 |
Foreign References:
| EP0766165A2 | 1997-04-02 | |||
| EP1107088A2 | 2001-06-13 | |||
| US5416840A | 1995-05-16 |
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