Date: Tue, 27 Nov 2018 09:11:05 +0700 From: Victor Sudakov <vas@mpeks.tomsk.su> To: RW <rwmaillists@googlemail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Invalid DKIM signatures in this list Message-ID: <20181127021105.GC79319@admin.sibptus.ru> In-Reply-To: <20181126165916.6c6bf874@gumby.homeunix.com> References: <20181126125259.GB86999@admin.sibptus.ru> <alpine.BSF.2.21.9999.1811261704230.90197@mail.fig.ol.no> <20181126165916.6c6bf874@gumby.homeunix.com>
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RW via freebsd-questions wrote: >On Mon, 26 Nov 2018 17:10:27 +0100 (CET) >Trond Endrestøl wrote: > >> On Mon, 26 Nov 2018 19:52+0700, Victor Sudakov wrote: >> >> > Dear Colleagues, >> > >> > I have noticed that the Mailman which manages this list keeps the >> > sender's "DKIM-Signature:" header intact but modifies the body of >> > the message by adding a footer. >> >> Are you sure? >> >> When I received your message, the hash was made up using Message-ID, >> Subject, To, From, Date, and In-Reply-To. I failed to find the latter >> field. > >That's legitimate, it signs the absence of that header if it's not >present at the time of signing. Oh no, I'm talking about the hash of the *body* of the message. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/
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