Roughly how long would it take to decrypt c.5000 average website passwords?

Giganews Newsgroups
Subject: Roughly how long would it take to decrypt c.5000 average website passwords?
Posted by:  ship (shiph…@gmail.com)
Date: Fri, 15 Oct 2010

Hi

We are thinking about decrypting about 5000 of our own website's
passwords. Do you think this would be feasible (without using a super-
computer)?

Details:
Our passwords are encrypted with a 40byte encryption (and a 40byte
salt). The passwords are of unknown length, and unknown complexity.
i.e. they are just bog-standard/normal passwords that users have added
to a website (that does not contain any very secure data).

- Anyone know how long it would be likely to take to decrypt using
a normal modern PC? I mean presumably you could test what, 10,000 (?)
possible passwords per minute...?

with thanks

John

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