From: patrick@Verity.COM (Patrick Horgan)
Date: Tue, 24 Oct 95 08:04:04 PDT
To: cypherpunks@toad.com
Subject: Re: [reformatted] how secure can privasoft be?
Message-ID: <9510241500.AA07290@cantina.verity.com>
MIME-Version: 1.0
Content-Type: text/plain


> > > This can at most buy you a constant factor - useful, but not very.
> ...
> > Someone else on this list mentioned that an edge detection algorithm 
> ...
> > It could give you a quick go/no go.
> 
> Don't forget that in most cases it'll be obvious that it's the wrong
> key - only when it isn't would you submit the thing to a second-level
> analyzer to check for edges/characters etc.

I'm confused here.  How will it be obvious?  Unless you mean that you're
going to sit there and watch it while it goes through the, (on average),
999999999/2 keys it would have to try before finding it.  That could
take awhile and really slow things down if it took user intervention
for each test.  You can't beat the human eye on visual discrimination
though.

Patrick
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