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Re: Better DKIM Verification Example Needed
- To: "ietf-mailsig" <ietf-mailsig@xxxxxxx>
- Subject: Re: Better DKIM Verification Example Needed
- From: "Arvel Hathcock" <arvel@xxxxxxxx>
- Date: Wed, 27 Jul 2005 16:25:19 -0500
- Dkim-signature: a=rsa-sha1; c=nowsp; d=altn.com; s=c3po; l=445; t=1122499516; x=1123104316; i=arvel@altn.com; q=dns; h=DomainKey-Signature: Received:Message-ID:From:To:References:Subject:Date:Organization: MIME-Version:Content-Type:Content-Transfer-Encoding:Reply-To; b=J5LILzeAdHxf2ecm48aMKzz9FtQcJc/jktkOebBeEJhTEsXPWud4TG41wdl3ue3R y6Zyo8efeucqrQIRfRw/OHekqbGSQju1FcBM4GPJ9DFfMjqeBzH42hQfAPb1oU2l psnMGKWJE9Cyj/A9BsH69DArPUYW+I8TEp5hAuEVZgQ=
- Domainkey-signature: a=rsa-sha1; s=c3po; d=altn.com; c=nofws; q=dns; h=from:message-id; b=TGkGwGHZBCalrS3p8J8DJ+cM+AgsI8P56INU6+1IEqIBRV/4qqf5L4Fk7uQ0/eDoM5w4J6LULxMiww53IUSPLbwG9e0xXdZXkxVfU8D513gNf65NAmYcqfJuz4+rabibR4XL+mMm/RN1jss0bgZ5bB7uQs+tTgiyXNqCNSlALAk=;
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Does the above mean the empty tag "b=;" is used or none?
Yes, use b=;
One clarification on that. If b= is the last tag in the signature (as
recommended by the spec) then you don't need the ; at the end and it should
just be b= rather than b=;. The semicolon is required when there are other
tags afterward. If b= is the last tag then the ; is not strictly required.
It's not entirely clear whether a ; char following the last tag in a
signature would hash out in such a way as to cause a problem. We need to
test this and post back the results.
--
Arvel