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| Subject: | User ID generation |
|---|---|
| Date: | Tue, 12 Apr 2005 01:26:26 -0700 (PDT) |
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,
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