CFLib.org – Common Function Library Project

GeneratePassword(numberOfCharacters)

Last updated April 25, 2002
Download UDF

author

Tony Blackmon                                     Tony Blackmon

Version: 1 | Requires: ColdFusion 5 | Library: SecurityLib

Description:
Generates a decent password that can contain uppercase, lowercase, numeric, and punctuation characters.

Return Values:
Returns a string.

Example:

<cfset newPassword = generatePassword(8)>
<cfoutput>
#newPassword#
</cfoutput>

Parameters:

Name Description Required
numberOfCharacters Lengh for the generated password. Yes

Full UDF Source:

<cfscript>
/**
* Generates a password the length you specify.
*
* @param numberOfCharacters      Lengh for the generated password.
* @return Returns a string.
* @author Tony Blackmon (fluid@sc.rr.com)
* @version 1, April 25, 2002
*/

function generatePassword(numberofCharacters) {
var placeCharacter = "";
var currentPlace=0;
var group=0;
var subGroup=0;

for(currentPlace=1; currentPlace lte numberofCharacters; currentPlace = currentPlace+1) {
group = randRange(1,4);
switch(group) {
case "1":
subGroup = rand();
    switch(subGroup) {
case "0":
placeCharacter = placeCharacter & chr(randRange(33,46));
break;
case "1":
placeCharacter = placeCharacter & chr(randRange(58,64));
break;
}
case "2":
placeCharacter = placeCharacter & chr(randRange(97,122));
break;
case "3":
placeCharacter = placeCharacter & chr(randRange(65,90));
break;
case "4":
placeCharacter = placeCharacter & chr(randRange(48,57));
break;
}
}
return placeCharacter;
}
</cfscript>

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