(keitai-l) Re: Re(2): 13 million+ i-mode handsets vulnerable to malicious e-mail

From: Michael Turner <leap_at_gol.com>
Date: 06/15/01
Message-ID: <003301c0f54f$aeb394c0$0961fea9@leap>
> > Nick May writes:
> > (quite what regexing the contents of every email that goes through
> > their servers would do to capacity makes me shudder to think...)
> 
> Oh, I don't know.  Remember that they already have to unwrap MIME
> messages and convert message bodies into Shift-JIS if they use some
> other character encoding.  Adding a few filters to the process
> shouldn't make a huge difference.

Indeed.  Converting every character means looking at every character.
Regular expression matching doesn't even have to do that (e.g. using
Boyer-Moore algorithm.)

I'll stop being pedantic now.

Michael Turner
leap@gol.com



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Received on Fri Jun 15 07:00:20 2001