GeneratePassword ( Len ; Letters ; Numbers ; Symbols )

Password generator

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flusheDData - Show more from this author
n/a
http://www.udias.com

Sample input:

GeneratePassword ( 20 ; 3 ; 0 ; 0 )
GeneratePassword ( 20 ; 3 ; 1 ; 0 )
GeneratePassword ( 20 ; 3 ; 1 ; 1 )

Sample output:

bAMPXEcgTnWjMxLnmYAo
029v2541868760834M00
&9BR%$T6#5P230#Vw$1~

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

Let ( [
    _selection = ( Letters > 0 and Letters ≤ 3 ) + ( Numbers = 1 ) + ( Symbols = 1 ) ; 
    _length = Case ( Len < _selection ; _selection ; Len ) ; 
    _letters = Case ( Letters = 1 ; "ABCDEFGHIJKLMNOPQRSTUVWXYZ" ; Letters = 2 ; "abcdefghijklmnopqrstuvwxyz" ; Letters = 3 ; "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" ) ; 
    _numbers = Case ( Numbers ; "0123456789" ) ; 
    _symbols = Case ( Symbols ; "$%&@#~" ) ; 
    _all = _letters & _numbers & _symbols ; 
    _generate = Middle ( _all ; Ceiling ( Random * Length ( _all ) ) ; 1 ) ; 
    $_counter = If ( $_counter ; $_counter + 1 ; 1 ) ; 
    $_result = $_result & _generate 
    ] ; 
 
    Case ( 
        $_counter < _length ; GeneratePassword ( Len ; Letters ; Numbers ; Symbols ) ; 
        Let ( [
            _result = $_result ; $_counter = "" ; $_result = "" 
            ] ; 
            _result 
        )
    )
)

/*
Function:
    GeneratePassword ( Len ; Letters ; Numbers ; Symbols )
    
Parameters:
    Len 0,...49999
    Letters 0, 1, 2 , 3 ( 1 = uppercase, 2 = lowercase, 3 = both )
    Numbers 0, 1
    Symbols 0, 1

Examples:
    GeneratePassword ( 20 ; 3 ; 0 ; 0 ) = bAMPXEcgTnWjMxLnmYAo
    GeneratePassword ( 20 ; 3 ; 1 ; 0 ) = 029v2541868760834M00
    GeneratePassword ( 20 ; 3 ; 1 ; 1 ) = &9BR%$T6#5P230#Vw$1~
    
flusheDData 2016 .::. flusheddata@gmail.com
*/

A tail recursive function that creates random passwords up to 49999 characters long. It can be set to include letters, numbers and symbols.
Comments to flusheddata@gmail.com

Comments

		suresh Jun 20, 2019
I have used this function in my existing database. I have used like this "GeneratePassword ( 8 ; 3 ; 1 ; 1 )" in my script, sometimes it will not include the symbols.

		flusheDData, n/a Mar 18, 2020
Hi, my apologyze for the delayed answer. Yep, sometimes that may happen when the password length is too short. Looking forward to modifying the formula. Kind regards, Miguel

		Jeff Dressing Mar 18, 2021
Has this been updated to handle shorter passwords? I have used GeneratePassword ( 8 ; 3 ; 1 ; 1 ) and sometimes it misses numbers and sometimes it misses special characters.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

GeneratePassword ( Len ; Letters ; Numbers ; Symbols )

Comments

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