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| Subject: | Re: User ID generation |
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| Date: | Mon, 18 Apr 2005 03:15:05 +0000 |
After the first or second attempt require the user to enter some random letters that appear in a graphic. Try www.gmail.com. After a few bad logins it makes you enter letters from a graphic. That will keep bots from retrying without human intervention. ~Paul On 4/12/05, Jason binger <cisspstudy@yahoo.com> wrote:
I have a customer that generates UserIDs as numbers sequentially for a critical application. They implement account lockout and I am concerned that someone could launch a DOS and lockout all the user accounts. What would people recommend for a user ID generation method. I was thinking UserIDs should be randomly generated from a large alpha-numeric keyspace, but how big should the keyspace be? What would the size of the keyspace need to be if it was only numeric? Any other thoughts appreciated. Cheers, __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/
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