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Password Generation

Pol Appan
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Joined: Aug 26, 2004
Posts: 144
Hello,

I have a user information creation form in JSP. After the user succesfully creates his account an email will be send to him with a password.

What is the best way of generating an alphanumeric password?

Any help is highly appreciated.

Thanks.

Ponic


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Jeff Albertson
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Joined: Sep 16, 2005
Posts: 1780


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Pol Appan
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Joined: Aug 26, 2004
Posts: 144
Thanks a lot and much appreciated.
Stan James
(instanceof Sidekick)
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Joined: Jan 29, 2003
Posts: 8791
A user-friendly technique is to find a large spelling dictionary somewhere on the web with thousands of words. Then pick two or three at random to make a password. I can still remember my CompuServe password from the early 80's: "WATER BOLDLY." I'd never remember QR1bA39u.

Still I have a routine to do just what was shown above. It accepts an argument with the valid characters, eg "BCDFGHJKLMPQRSTVWXYZ0123456789". Note I left out the vowels to avoid randomly generating some insult to the user's parentage though users from Qwhlgm are still at risk. You might also leave out 1 and 0 to avoid confusion with I and O.
[ September 23, 2005: Message edited by: Stan James ]

A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi
 
 
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