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CFDevGuy #1
Dynamic Password Generation
I am looking for ideas of the best way to create a dynamic password when a user
registers with an online service. You know the sort of thing...tt would be
stored in DB, and sent to the email address provided by the user. When the user
returns and authenticates with their username and dynamic password they were
sent, they can change the password to their liking.
This is the first time I have been tasked with this sort of thing, so any
advice and/or tips are very much appreciated. Thanks.
CFDevGuy Guest
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jorgepino #2 Re: Dynamic Password Generation
you could use this and change it as needed
[url]http://www.macromedia.com/cfusion/exchange/index.cfm#loc=en_us&view=sn106&viewNa[/url]
me=Exchange%20Search%20Details&authorid=33575664&p age=0&scrollPos=0&subcatid=0&s
nid=sn106&itemnumber=17&extid=1001895&catid=0
jorgepino Guest
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CFDevGuy #3 Re: Dynamic Password Generation
Thanks Jorge, I will try it out. I don't know how I missed that :-)
CFDevGuy Guest
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BKBK #4 Re: Dynamic Password Generation
Two files, one cfc and one cfm.
Calling page, saved, for example, as pwgen.cfm:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Alphanumeric password generation</title>
</head>
<body>
<!--- Call the CFC for password generation, passwordgen.cfc --->
<cfinvoke component="password_gen" method="generatePassword"
returnvariable="password">
<cfinvokeargument name="passwordLength" value="6">
</cfinvoke>
<cfoutput>password: #password#</cfoutput>
</body>
</html>
<!---
Component for alphanumeric password generation.
Only one required input, the password length.
Author: BKBK, July 13, 2005
Save it, for example, as file password_gen.cfc
--->
<cfcomponent displayname="passwordGenerator" hint="Contains method for
generating password of given length">
<cffunction name="generatePassword" output="No" returntype="string">
<cfargument name="passwordLength" type="numeric" required="Yes">
<cfset password = "">
<cfloop condition="0 EQ 0">
<!--- Random integer between 49 and 122 --->
<cfset i = #randRange(49,122)#>
<cfset condition = NOT (i GT 57 AND i LT 65) and NOT (i GT 90 AND i LT 97)
and (NOT (i EQ 79) AND NOT (i EQ 111))>
<cfif (Len(password) LT #arguments.passwordLength#) and condition>
<!---
Construct random alphanumeric password of length #passwordLength#,
using digits, capital letters and small letters. Exceptions are zero(0)
capital letter O amd small letter o, which often confuse the user.
--->
<cfset password = password&chr(i)>
</cfif>
<cfif Len(password) EQ #arguments.passwordLength#>
<cfbreak>
</cfif>
</cfloop>
<cfreturn password>
</cffunction>
</cfcomponent>
BKBK Guest
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