Re: Password previously used ideas?

Geoff Muldoon wrote:
Hugh Oxford says...

Use a separate table for used passwords, with columns of user, password and date. On an insert check for the number of entries for a user and delete the oldest dated one when the count reaches your threshold. Would also be a much more efficient check for reuse matches.

Geoff M

Of course I _could_ do this but I was looking for a way to avoid it. I don't need to know what the old passwords were, I just need to know that they aren't reusing them.

Does sha1 encode using underscores? I don't think so.
.

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