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Device and method for preventing unauthorized use and/or manipulation of software

A technology for software and medical devices, applied in the field of computer systems, which can solve problems such as inability to apply new versions of software, illegal copying, economic losses, etc.

Inactive Publication Date: 2012-03-07
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Full protection cannot always be obtained during distribution, so illegal copying may occur, and precious methods may also be analyzed in a reconstructed manner, resulting in considerable economic losses
Furthermore, there is no way to determine whether, after a so-called software update or upgrade, the device happens to be rendered inoperable with the new software, whether inadvertently or intentionally, so that it cannot be operated with the new software

Method used

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  • Device and method for preventing unauthorized use and/or manipulation of software
  • Device and method for preventing unauthorized use and/or manipulation of software
  • Device and method for preventing unauthorized use and/or manipulation of software

Examples

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Embodiment Construction

[0060] figure 1A device 1 according to the invention is shown configured as a medical device or other type of device and having a computer system 3 . The computer system 3 includes a controller 5, which contains a startup program 7; a program memory 9, which contains a software 11, such as an application program; and a main memory 13, which can be configured as an internal memory. A non-readable decryption algorithm 14 and a non-readable decoding key 15 are stored in the startup program 7 . The three components of the controller 5 , the program memory 9 and the main memory 13 are interconnected for the purpose of data exchange, for example.

[0061] figure 2 Two identically structured devices 1', 1" are shown, configured as medical equipment, each comprising a computer system 3. The two computer systems 3 in turn each comprise three elements: a controller 5, a program memory 9 and a main memory 13 , and the difference lies at least in two different decoding keys 15', 15". ...

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PUM

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Abstract

The invention relates to a computer system (3) comprising a boot loader (7) for use of an especially medical device (1) using at least one loadable software (11), the boot loader (7) comprising at least one nonreadable decryption algorithm (14) for the software (11). The boot loader (7) furthermore comprises at least one non-readable decoding key (15), or else the computer system (3) comprises at least one further storage medium (23) which is different from the boot loader (7) and on which at least one copy-proof decoding key (27) is stored. The invention further relates to a computer system (3) comprising a controller chip (29) for operating an especially medical device (1) by using at least one software (11), especially an application program, the software (11) being stored in the controller chip (29) in a nonreadable manner. It also relates to corresponding methods.

Description

technical field [0001] The invention relates to a computer system according to claim 1 which prevents or at least hinders unauthorized use of software. In addition, the present invention relates to the computer system described in the preamble of claim 10, the computer system described in claim 14, the operating method of the medical device described in the preamble of claim 17, the device described in the preamble of claim 18, especially A medical device, a method for replacing or supplementing software or an application program, and the device as described in the preamble of claim 19. Background technique [0002] Generally, current medical and other equipment or devices (the terms "device" and "equipment" are used synonymously below) all include a large amount of device software. For higher security requirements, it is necessary to prevent tampering of such software, so as to safely ensure the original design function of the software. In addition, software must be consi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/24G06F21/12G06F21/57G06F21/62
CPCG06F21/121G06F21/572G06F21/6209G06F2221/2107
Inventor 托马斯·史达尔杰尔贞·舒安克
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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