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GDPR - string anonymisation function


mLipok
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I need to anonymize some strings.

For example:
 

_Example()
Func _Example()
    Local $sString1 = 'Warsaw'
    MsgBox(0, 'Test 1a', _GDPR_Anonymize_String1($sString1))
    MsgBox(0, 'Test 1b', _GDPR_Anonymize_String2($sString1))

    Local $sString2 = 'Zielona Góra'
    MsgBox(0, 'Test 2a', _GDPR_Anonymize_String1($sString2))
    MsgBox(0, 'Test 2b', _GDPR_Anonymize_String2($sString2))

    Local $sString3 = 'ZAKŁAD UBEZPIECZEŃ SPOŁECZNYCH'
    MsgBox(0, 'Test 3a', _GDPR_Anonymize_String1($sString3))
    MsgBox(0, 'Test 3b', _GDPR_Anonymize_String2($sString3))

    Local $sString4 = 'ZAKŁAD UBEZPIECZEŃ SPOŁECZNYC'
    MsgBox(0, 'Test 4a', _GDPR_Anonymize_String1($sString4))
    MsgBox(0, 'Test 4b', _GDPR_Anonymize_String2($sString4))
EndFunc   ;==>_Example


Func _GDPR_Anonymize_String1(ByRef $sString)
    Return SetError(@error, @extended, StringRegExpReplace($sString, '(?i)(.)(.{1,2})', '$1**'))
EndFunc   ;==>_GDPR_Anonymize_String1

Func _GDPR_Anonymize_String2(ByRef $sString)
    Return SetError(@error, @extended, StringRegExpReplace($sString, '(?i)(.)(..)', '$1**'))
EndFunc   ;==>_GDPR_Anonymize_String2

 

What is your opinion about this example, and compliance with GDPR  "guidelines"?
Maybe you have a better solution to this problem?

Edited by mLipok

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Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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@mLipok

Go for the data pseudonymisation.

It can be applied to large amount of data, and it is more reliable than the anonymisation, since, in the first case, data is protected/crypted, while in the second case, data is "changed", and the work to rebuild it is significantly bigger than using the first method :)

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17 hours ago, abberration said:

Never heard of GDPR

 

Are you from USA?

16 hours ago, FrancescoDiMuro said:

Go for the data pseudonymisation......and the work to rebuild it is significantly bigger than using the first method

1

My intention was to create a function which can put some restricted data in a "save form" to TXT log Files or other "output".

#include "ErrorLog.au3" ; https://www.autoitscript.com/forum/index.php?showtopic=195882
_Log_SetOutputFunction(ConsoleWrite)

_Example()

Func _Example()
    Local $sString2 = 'Zielona Góra'
    _Log('City: ' & _GDPR_Anonymize_String1($sString2) & @CRLF)
EndFunc   ;==>_Example



Func _GDPR_Anonymize_String1(ByRef $sString, $iError = @error, $iExtended = @extended)
    Return SetError($iError, $iExtended, StringRegExpReplace($sString, '(?i)(.)(.{1,2})', '$1**'))
EndFunc   ;==>_GDPR_Anonymize_String1

Func _GDPR_Anonymize_String2(ByRef $sString, $iError = @error, $iExtended = @extended)
    Return SetError($iError, $iExtended, StringRegExpReplace($sString, '(?i)(.)(..)', '$1**'))
EndFunc   ;==>_GDPR_Anonymize_String2

 

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winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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1 hour ago, mLipok said:

My intention was to create a function which can put some restricted data in a "save form" to TXT log Files or other "output".

So you don't have the need to "rebuild" the data in a later moment?
If so, then you can use the anonymisation (partial or total) :)

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17 hours ago, Danyfirex said:

Write it in that way you will not affect @error and @extented. 

 

I do what you request (this was quite sensible)......

and

1 hour ago, Danyfirex said:

It still does not affect @error and @extended.

 

now you are asking about the opposite case?

 

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I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuffOnHungApp handlerAvoid "AutoIt Error" message box in unknown errors  * HTML editor

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

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"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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4 minutes ago, FrancescoDiMuro said:

So you don't have the need to "rebuild" the data in a later moment?
If so, then you can use the anonymisation (partial or total) :)

1

As EndUser (Client) still have the source database so this is rather a pseudonymization (from the point of view of EndUser), but if the EndUser wants to send only log data to DevTeam, then EndUser can say that Logged data was sent do DevTeam as an anonymized data.

At least ..... I HOPE THAT ⁉️

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My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane

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OpenOffice/LibreOffice/XLS Related: WriterDemo.au3 * XLS/MDB from scratch with ADOX

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskSchedulerIE Embedded Control Versioning (use IE9+ and HTML5 in a GUI) * PDF Related:How to get reference to PDF object embeded in IE * IE on Windows 11

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuffOnHungApp handlerAvoid "AutoIt Error" message box in unknown errors  * HTML editor

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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I mean this:

_Example()
Func _Example()
    Local $sString1 = 'Warsaw'
    Local $sStringNew=_GDPR_Anonymize_String1($sString1)
    ConsoleWrite("@extended: " & @extended & @CRLF)
    ConsoleWrite("$sStringNew: " & $sStringNew & @CRLF)
EndFunc   ;==>_Example

 

@extended should be 2 in this case.

 

Saludos

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6 minutes ago, FrancescoDiMuro said:

to what SRER returns

What means SRER ?

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My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane

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Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Good coding practices in AutoIt * 

OpenOffice/LibreOffice/XLS Related: WriterDemo.au3 * XLS/MDB from scratch with ADOX

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskSchedulerIE Embedded Control Versioning (use IE9+ and HTML5 in a GUI) * PDF Related:How to get reference to PDF object embeded in IE * IE on Windows 11

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuffOnHungApp handlerAvoid "AutoIt Error" message box in unknown errors  * HTML editor

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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3 minutes ago, mLipok said:

As EndUser (Client) still have the source database so this is rather a pseudonymization

It depends on how data is stored in the Database.
The EndUser should be able to rebuild the data from a database in which data should be pseudonymised.
But, in this case, the EndUser has the Database with "decrypted" data, so, to send it to the DevTeam, you can just anonymise it and nothing else.

4 minutes ago, mLipok said:

What means SRER ?

StringRegExpReplace :)

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4 minutes ago, Danyfirex said:

@extended should be 2 in this case.

 

Do you mean that I should return @extended from StringRegExpReplace() function (number of replacements performed) ?

 

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"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
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Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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Not really. I just thought You wanted that. But actually i that way you never affect @error or @extended what I want to say is that this expression:

Return SetError(@error, @extended, StringRegExpReplace($sString, '(?i)(.)(.{1,2})', '$1**'))

this part "StringRegExpReplace($sString, '(?i)(.)(.{1,2})', '$1**')" or wharever expression you run in that way will not affect @error, @extended.

Saludos

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@Danyfirex aha .. now I see. You were referring to my "nonsense" in the code:

Func _GDPR_Anonymize_String1(ByRef $sString)
    Return SetError(@error, @extended, StringRegExpReplace($sString, '(?i)(.)(.{1,2})', '$1**'))
EndFunc   ;==>_GDPR_Anonymize_String1

where, the code will always return      @error = 0   and    @exteneded = 0 

Yes, this was a quick beta version ;)

 

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Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST APIErrorLog.au3 UDF - A logging Library * Include Dependency Tree (Tool for analyzing script relations) * Show_Macro_Values.au3 *

 

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

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OpenOffice/LibreOffice/XLS Related: WriterDemo.au3 * XLS/MDB from scratch with ADOX

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskSchedulerIE Embedded Control Versioning (use IE9+ and HTML5 in a GUI) * PDF Related:How to get reference to PDF object embeded in IE * IE on Windows 11

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuffOnHungApp handlerAvoid "AutoIt Error" message box in unknown errors  * HTML editor

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2023-04-24

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27 minutes ago, FrancescoDiMuro said:

But, in this case, the EndUser has the Database with "decrypted" data, so, to send it to the DevTeam, you can just anonymise it and nothing else.

2

So if program stores some anonymized data in a form of "Textual LOG files" ...

Question 1:
Can my function be considered sufficient to assume that the returned data is fully anonymous?

Question 2:
In the case when the answer to Q1 == Yes .... 

Whether such file is not subject to additional protection (for example I mean that you do not need to backup, etc.)  ?
or in other words:
Whether for this type of file, constituting a set of anonymous information, you still need to use any other procedures required by GPDR ?

 

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Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST APIErrorLog.au3 UDF - A logging Library * Include Dependency Tree (Tool for analyzing script relations) * Show_Macro_Values.au3 *

 

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Good coding practices in AutoIt * 

OpenOffice/LibreOffice/XLS Related: WriterDemo.au3 * XLS/MDB from scratch with ADOX

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskSchedulerIE Embedded Control Versioning (use IE9+ and HTML5 in a GUI) * PDF Related:How to get reference to PDF object embeded in IE * IE on Windows 11

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuffOnHungApp handlerAvoid "AutoIt Error" message box in unknown errors  * HTML editor

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2023-04-24

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1 hour ago, mLipok said:

Can my function be considered sufficient to assume that the returned data is fully anonymous?

This article is pretty in-line with the object you are trying to achieve.
By the way, it depends about what kind of data you have; if you have a database where, querying it you can somehow rebuild the data, you should make a lot of data suppression instead of data generalization (so, make some columns * instead of W*****w).
Take a look at the article and let us know :)

EDIT: 
About Question 2, you have always to do backups of your data.

Through some suggested software, there's Iperius Backup.

Edited by FrancescoDiMuro

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