WO2001037154A1 - Preventing unauthorized use of active content generator software - Google Patents

Preventing unauthorized use of active content generator software Download PDF

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Publication number
WO2001037154A1
WO2001037154A1 PCT/IL2000/000754 IL0000754W WO0137154A1 WO 2001037154 A1 WO2001037154 A1 WO 2001037154A1 IL 0000754 W IL0000754 W IL 0000754W WO 0137154 A1 WO0137154 A1 WO 0137154A1
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WO
WIPO (PCT)
Prior art keywords
software
content generator
active content
server
processor
Prior art date
Application number
PCT/IL2000/000754
Other languages
French (fr)
Inventor
Yanki Margalit
Dany Margalit
Gil Hecht
Original Assignee
Aladdin Knowledge Systems Ltd.
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 Aladdin Knowledge Systems Ltd. filed Critical Aladdin Knowledge Systems Ltd.
Priority to AU14099/01A priority Critical patent/AU1409901A/en
Publication of WO2001037154A1 publication Critical patent/WO2001037154A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]

Definitions

  • the present invention relates to Active Content Generator Software and web sites (servers) generally.
  • the present invention seeks to provide a method, hardware and software, for preventing operation of Active Content Generator Software which has been transferred to unlicensed parties.
  • Encrypted Server Page refers to a web page which is comprised of HTML, scripting and other components required to create an active content. This web page is encrypted and locked by a license key.
  • a method for preventing unauthorized use of active content generator software including the steps of installing an authorization latch on an active content generator processor, and installing a latch key for operating the authorization latch on an authorized server for enabling the authorized server to operate the authorization latch and thus enable the active content generator processor to be operative.
  • the step of installing an authorization latch on an active content generator processor comprises providing a dynamic load library (DLL) interposed between web server software and the active content generator processor.
  • DLL dynamic load library
  • the DLL is interposed between the web server software and the Preferably, the DLL is interposed between the web server software and the active content generator processor and includes an encrypted server page processor.
  • the encrypted server page processor and also includes a filter.
  • the DLL is operative to receive requests from the web server software for encrypted server pages, to verify the authorization status of the web server software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the active content generator processor.
  • the active content generator software includes active server page (ASP) software.
  • ASP active server page
  • the active content generator software includes Java server page (JSP) software.
  • JSP Java server page
  • the method for preventing unauthorized use of active content generator software comprises an information server application program interface (ISAPI) filter.
  • ISAPI information server application program interface
  • the filter may also include a file system filter.
  • a method for monitoring operation of active content generator software which includes the steps of providing a dynamic load library (DLL) interposed between web server software and the active content generator processor, employing the DLL for monitoring the operation of the active content generator software.
  • DLL dynamic load library
  • the DLL is interposed between the web server software and the active content generator processor and includes an encrypted server page processor.
  • the encrypted server page processor includes a filter.
  • the DLL is operative to receive requests from the web server software for encrypted server pages, to verify the authorization status of the web server software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the active content generator processor.
  • the active content generator software includes active server page (ASP) software.
  • ASP active server page
  • the active content generator software includes Java server page (JSP) software.
  • JSP Java server page
  • the filter includes an information server application program interface (ISAPI) filter.
  • ISAPI information server application program interface
  • the filter includes a file system filter.
  • a method for preventing unauthorized use of active server page (ASP) software including the steps of installing an authorization latch on an ASP processor, installing a latch key for operating the authorization latch on an authorized server for enabling the authorized server to operate the authorization latch and thus enabling the ASP processor to be operative.
  • ASP active server page
  • the method for preventing unauthorized use of active server page (ASP) software includes the step of installing an authorization latch on an ASP processor and providing a dynamic load library (DLL) interposed between Internet Information Server (US) software and the ASP processor.
  • DLL dynamic load library
  • the dynamic load library interposed between Internet Information Server (IIS) software and the ASP processor, includes an encrypter server page processor.
  • IIS Internet Information Server
  • the method for preventing unauthorized use of active server page (ASP) software also includes an information server application program interface (ISAPI) filter.
  • ISAPI information server application program interface
  • the DLL is operative to receive requests from the IIS software for encrypted server pages, to verify the authorization status of the IIS software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the ASP processor.
  • FIG. 1 is a simplified block diagram illustration of a server employing functionality for preventing unauthorized use of active server page (ASP) software in accordance with a preferred embodiment of the present invention
  • Fig. 2 is a simplified flow chart illustration of operation of the server functionality of Fig. 1 for preventing unauthorized use of active server page (ASP) software in accordance with a preferred embodiment of the present invention.
  • ASP active server page
  • the present invention relates to monitoring and prevention of unauthorized use of active content generators.
  • active server page ASP
  • ISAPI filter an ISAPI filter
  • FIG. 1 is a simplified block diagram illustration of a server employing functionality for preventing unauthorized use of active server page (ASP) software in accordance with a preferred embodiment of the present invention and to Fig. 2, which illustrates operation of the server functionality of Fig. 1.
  • ASP active server page
  • a web server 10 such as an Internet Information Server (IIS) commercially available from Microsoft Corporation, interacts with a client's web browser 12, such as the Microsoft INTERNET EXPLORER R or the Netscape COMMUNICATOR R.
  • the Internet Information Server 10 receives requests from web browsers 12 over the Internet for both non-encrypted HTML and ASP pages and encrypted ESP pages.
  • ESP ISAPI Encrypted Server Page Internet Server Application Program Interface
  • the ESP ISAPI filter 14 determines whether the requested web page is encrypted. This determination is preferably carried out by examining the extension of the URL of the web page. If the requested web page is not encrypted, the ESP ISAPI filter 14 so informs the web server 10.
  • Requests for HTML pages are dealt with by server 10 in an entirely conventional manner. Requests for ASP pages are transmitted by server 10 to the ESP ISAPI filter 14 and thence directly to an Active Server Pages processor (ASP) 20 which processes the requested ASP page and, following such processing, provides the requested page in an HTML format to server 10.
  • ASP Active Server Pages processor
  • Requests for ESP pages are transmitted by server 10 to ESP ISAPI filter 14, which employs a License Manager Client Library 16 to interrogate with a License Manager Server Software 18, as to whether the requested ESP pages are licensed.
  • the License Manager Server Software 18 as well as License Manager Client Library 16 are embodied in the PRIVILEGE LM server commercially available from Aladdin Knowledge Systems Ltd. of Tel Aviv, Israel.
  • the Software 18 fetches a valid license key, which is employed by the ESP ISAPI 14 filter and is operative to obtain and decrypt the licensed ESP page and to provide it to ASP 20 for processing and transmitting in HTML format to web server 10. If a license does not exist, the requested web page is not furnished to the ASP processor 20.
  • the ASP processor 20 parses the decrypted licensed web page and provides a corresponding HTML page to the web server 10 for transmission to the client's web browser 12 via the Internet.
  • FIG. 2 is a simplified flow chart illustration of functionality in the ESP ISAPI filter for preventing unauthorized use of ACTIVE CONTENT GENERATOR SOFTWARE in accordance with a preferred embodiment of the present invention.
  • the ESP ISAPI filter is registered in the server 10 to receive all URL requests. Upon receipt of such a request, the ESP ISAPI filter parses the request. If the request is for an ESP page, the ESP ISAPI filter searches for a license key.

Abstract

This invention discloses a method for preventing unauthorized use of active content generator software including the steps of installing an authorization latch on an active content generator processor (20), and installing a latch key for operating the authorization latch on an authorized server (10) to operate the operation latch and thus enable the active content generator processor (20) to be operative.

Description

PREVENTINGUNAUTHORIZED USE OF ACTIVE CONTENT
GENERATOR SOFTWARE
FIELD OF THE INVENTION The present invention relates to Active Content Generator Software and web sites (servers) generally.
BACKGROUND OF THE INVENTION Active Content Generator Software and web site are well known. A known problem with such web sites is that they may be readily transferred to an unlicensed party who may use them in an unlicensed application without payment of required license fees.
SUMMARY OF THE INVENTION
The present invention seeks to provide a method, hardware and software, for preventing operation of Active Content Generator Software which has been transferred to unlicensed parties.
In the specification and claims of the present patent application, the term "Encrypted Server Page (ESP)" refers to a web page which is comprised of HTML, scripting and other components required to create an active content. This web page is encrypted and locked by a license key.
There is thus provided in accordance with a preferred embodiment of the present invention a method for preventing unauthorized use of active content generator software including the steps of installing an authorization latch on an active content generator processor, and installing a latch key for operating the authorization latch on an authorized server for enabling the authorized server to operate the authorization latch and thus enable the active content generator processor to be operative.
Further in accordance with a preferred embodiment of the present invention the step of installing an authorization latch on an active content generator processor comprises providing a dynamic load library (DLL) interposed between web server software and the active content generator processor.
Preferably, the DLL is interposed between the web server software and the Preferably, the DLL is interposed between the web server software and the active content generator processor and includes an encrypted server page processor.
Additionally the encrypted server page processor and also includes a filter.
Still further in accordance with a preferred embodiment of the present invention the DLL is operative to receive requests from the web server software for encrypted server pages, to verify the authorization status of the web server software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the active content generator processor.
Moreover in accordance with a preferred embodiment of the present invention the active content generator software includes active server page (ASP) software.
Additionally or alternatively the active content generator software includes Java server page (JSP) software.
Preferably, the method for preventing unauthorized use of active content generator software comprises an information server application program interface (ISAPI) filter. The filter may also include a file system filter.
There is also provided in accordance with yet another preferred embodiment of the present invention, a method for monitoring operation of active content generator software which includes the steps of providing a dynamic load library (DLL) interposed between web server software and the active content generator processor, employing the DLL for monitoring the operation of the active content generator software.
Further in accordance with a preferred embodiment of the present invention the DLL is interposed between the web server software and the active content generator processor and includes an encrypted server page processor. Preferably, the encrypted server page processor includes a filter.
Still further in accordance with a preferred embodiment of the present invention the DLL is operative to receive requests from the web server software for encrypted server pages, to verify the authorization status of the web server software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the active content generator processor.
Moreover in accordance with a preferred embodiment of the present invention the active content generator software includes active server page (ASP) software.
Additionally or alternatively the active content generator software includes Java server page (JSP) software.
Still further in accordance with a preferred embodiment of the present invention the filter includes an information server application program interface (ISAPI) filter.
Furthermore in accordance with a preferred embodiment of the present invention the filter includes a file system filter.
There is also provided in accordance with another preferred embodiment of the present invention a method for preventing unauthorized use of active server page (ASP) software including the steps of installing an authorization latch on an ASP processor, installing a latch key for operating the authorization latch on an authorized server for enabling the authorized server to operate the authorization latch and thus enabling the ASP processor to be operative.
Further in accordance with a preferred embodiment of the present invention the method for preventing unauthorized use of active server page (ASP) software includes the step of installing an authorization latch on an ASP processor and providing a dynamic load library (DLL) interposed between Internet Information Server (US) software and the ASP processor.
Preferably, the dynamic load library (DLL), interposed between Internet Information Server (IIS) software and the ASP processor, includes an encrypter server page processor.
The method for preventing unauthorized use of active server page (ASP) software also includes an information server application program interface (ISAPI) filter.
Additionally, the DLL is operative to receive requests from the IIS software for encrypted server pages, to verify the authorization status of the IIS software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the ASP processor.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood and appreciated more fully from the following detailed description, taken in conjunction with the drawings in which:
Fig. 1 is a simplified block diagram illustration of a server employing functionality for preventing unauthorized use of active server page (ASP) software in accordance with a preferred embodiment of the present invention; and
Fig. 2 is a simplified flow chart illustration of operation of the server functionality of Fig. 1 for preventing unauthorized use of active server page (ASP) software in accordance with a preferred embodiment of the present invention.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
The present invention relates to monitoring and prevention of unauthorized use of active content generators. For the purpose of conciseness and clarity, the invention is described hereinbelow in the context of active server page (ASP) software and employs an ISAPI filter. It is to be appreciated that the application of the present invention is not limited to active server page software but rather applies to any suitable type of active content generators, such as for example Java Server Page generators, and is not limited to the use of ISAPI filters, but rather applies to any suitable type of filter, such as a file system filter.
Reference is now made to Fig. 1, which is a simplified block diagram illustration of a server employing functionality for preventing unauthorized use of active server page (ASP) software in accordance with a preferred embodiment of the present invention and to Fig. 2, which illustrates operation of the server functionality of Fig. 1.
As seen in Fig. 1, a web server 10, such as an Internet Information Server (IIS) commercially available from Microsoft Corporation, interacts with a client's web browser 12, such as the Microsoft INTERNET EXPLORER R or the Netscape COMMUNICATOR R. The Internet Information Server 10 receives requests from web browsers 12 over the Internet for both non-encrypted HTML and ASP pages and encrypted ESP pages.
In accordance with a preferred embodiment of the present invention, when a web page is sought to be downloaded to the client's browser from the web server 10, a notification, identifying the requested web page is supplied by the web server 10 to an Encrypted Server Page Internet Server Application Program Interface (ESP ISAPI) filter 14.
Upon receipt of such a notification, the ESP ISAPI filter 14 determines whether the requested web page is encrypted. This determination is preferably carried out by examining the extension of the URL of the web page. If the requested web page is not encrypted, the ESP ISAPI filter 14 so informs the web server 10.
Requests for HTML pages are dealt with by server 10 in an entirely conventional manner. Requests for ASP pages are transmitted by server 10 to the ESP ISAPI filter 14 and thence directly to an Active Server Pages processor (ASP) 20 which processes the requested ASP page and, following such processing, provides the requested page in an HTML format to server 10.
Requests for ESP pages are transmitted by server 10 to ESP ISAPI filter 14, which employs a License Manager Client Library 16 to interrogate with a License Manager Server Software 18, as to whether the requested ESP pages are licensed. In accordance with a preferred embodiment of the present invention, the License Manager Server Software 18 as well as License Manager Client Library 16 are embodied in the PRIVILEGE LM server commercially available from Aladdin Knowledge Systems Ltd. of Tel Aviv, Israel.
If a license exists, the Software 18 fetches a valid license key, which is employed by the ESP ISAPI 14 filter and is operative to obtain and decrypt the licensed ESP page and to provide it to ASP 20 for processing and transmitting in HTML format to web server 10. If a license does not exist, the requested web page is not furnished to the ASP processor 20.
The ASP processor 20 parses the decrypted licensed web page and provides a corresponding HTML page to the web server 10 for transmission to the client's web browser 12 via the Internet.
Reference is now made to Fig. 2, which is a simplified flow chart illustration of functionality in the ESP ISAPI filter for preventing unauthorized use of ACTIVE CONTENT GENERATOR SOFTWARE in accordance with a preferred embodiment of the present invention.
As seen in Fig. 2, the ESP ISAPI filter is registered in the server 10 to receive all URL requests. Upon receipt of such a request, the ESP ISAPI filter parses the request. If the request is for an ESP page, the ESP ISAPI filter searches for a license key.
It is appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described hereinabove. Rather the scope of the present invention includes also combinations and subcombinations of various features of the present invention as well as modifications and variations thereof as would occur to a person skilled in the art upon reading the foregoing description and which are not in the prior art.

Claims

C L A I M S
1. A method for preventing unauthorized use of active content generator software comprising the steps of: installing an authorization latch on an active content generator processor; and installing a latch key for operating said authorization latch on an authorized server for enabling said authorized server to operate said authorization latch and thus enable said active content generator processor to be operative.
2. A method for preventing unauthorized use of active content generator software according to claim 1 and wherein said step of installing an authorization latch on an active content generator processor comprises providing a dynamic load library (DLL) interposed between web server software and the active content generator processor.
3. A method for preventing unauthorized use of active content generator software according to claim 2 and wherein said dynamic load library (DLL) interposed between said web server software and the active content generator processor comprises an encrypted server page processor.
4. A method for preventing unauthorized use of active content generator software according to claim 3 and wherein said encrypted server page processor comprises a filter.
5. A method for preventing unauthorized use of active content generator software according to claim 3 and wherein said DLL is operative to receive requests from said web server software for encrypted server pages, to verify the authorization status of the web server software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the active content generator processor.
6. A method for preventing unauthorized use of active content generator software according to claim 1 and wherein said active content generator software comprises active server page (ASP) software.
7. A method for preventing unauthorized use of active content generator software according to claim 1 and wherein said active content generator software comprises Java server page (JSP) software.
8. A method for preventing unauthorized use of active content generator software according to claim 4 and wherein said filter comprises an information server application program interface (ISAPI) filter.
9. A method for preventing unauthorized use of active content generator software according to claim 4 and wherein said filter comprises a file system filter.
10. A method for monitoring operation of active content generator software comprising the steps of: providing a dynamic load library (DLL) interposed between web server software and the active content generator processor; employing said dynamic load library for monitoring the operation of the active content generator software.
11. A method for monitoring of active content generator software according to claim
10 and wherein said dynamic load library (DLL) interposed between said web server software and the active content generator processor comprises an encrypted server page processor.
12. A method for monitoring of active content generator software according to claim
11 and wherein said encrypted server page processor comprises a filter.
13. A method for monitoring of active content generator software according to claim 11 and wherein said DLL is operative to receive requests from said web server software for encrypted server pages, to verify the authorization status of the web server software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the active content generator processor.
14. A method for monitoring of active content generator software according to claim 10 and wherein said active content generator software comprises active server page (ASP) software.
15. A method for monitoring of active content generator software according to claim 10 and wherein said active content generator software comprises Java server page (JSP) software.
16. A method for monitoring of active content generator software according to claim 12 and wherein said filter comprises an information server application program interface (ISAPI) filter.
17. A method for monitoring of active content generator software according to claim 12 and wherein said filter comprises a file system filter.
18. A method for preventing unauthorized use of active server page (ASP) software comprising the steps of: installing an authorization latch on an ASP processor; installing a latch key for operating said authorization latch on an authorized server for enabling said authorized server to operate said authorization latch and thus enable said ASP processor to be operative.
19. A method for preventing unauthorized use of active server page (ASP) software according to claim 18 and wherein said step of installing an authorization latch on an ASP processor comprises providing a dynamic load library (DLL) interposed between Internet Information Server (IIS) software and the ASP processor.
20. A method for preventing unauthorized use of active server page (ASP) software according to claim 19 and wherein said dynamic load library (DLL) interposed between Internet Information Server (IIS) software and the ASP processor comprises an encrypted server page processor.
21. A method for preventing unauthorized use of active server page (ASP) software according to claim 20 and wherein said encrypted server page processor comprises an information server application program interface (ISAPI) filter.
22. A method for preventing unauthorized use of active server page (ASP) software according to claim 20 and wherein said DLL is operative to receive requests from said IIS software for encrypted server pages, to verify the authorization status of the IIS software, and, when authorization exists, to decrypt requested encrypted server pages and to provide them to the ASP processor.
PCT/IL2000/000754 1999-11-16 2000-11-15 Preventing unauthorized use of active content generator software WO2001037154A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14099/01A AU1409901A (en) 1999-11-16 2000-11-15 Preventing unauthorized use of active content generator software

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44087699A 1999-11-16 1999-11-16
US09/440,876 1999-11-16

Publications (1)

Publication Number Publication Date
WO2001037154A1 true WO2001037154A1 (en) 2001-05-25

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WO (1) WO2001037154A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6073124A (en) * 1997-01-29 2000-06-06 Shopnow.Com Inc. Method and system for securely incorporating electronic information into an online purchasing application
US6141698A (en) * 1997-01-29 2000-10-31 Network Commerce Inc. Method and system for injecting new code into existing application code
US6150837A (en) * 1997-02-28 2000-11-21 Actel Corporation Enhanced field programmable gate array

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6073124A (en) * 1997-01-29 2000-06-06 Shopnow.Com Inc. Method and system for securely incorporating electronic information into an online purchasing application
US6141698A (en) * 1997-01-29 2000-10-31 Network Commerce Inc. Method and system for injecting new code into existing application code
US6150837A (en) * 1997-02-28 2000-11-21 Actel Corporation Enhanced field programmable gate array

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