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RFC 6376, "DomainKeys Identified Mail (DKIM) Signatures", September 2011

Source of RFC: dkim (sec)

Errata ID: 3759
Status: Rejected
Type: Editorial
Publication Format(s) : TEXT

Reported By: Majid Tajamolian & Nazila Karkon
Date Reported: 2013-10-20
Rejected by: Barry Leiba
Date Rejected: 2013-10-20

Section 3.6.1. says:

   h= Acceptable hash algorithms (plain-text; OPTIONAL, defaults to
      allowing all algorithms).  A colon-separated list of hash
      algorithms that might be used.  Unrecognized algorithms MUST be
      ignored.  Refer to Section 3.3 for a discussion of the hash
      algorithms implemented by Signers and Verifiers.  The set of
      algorithms listed in this tag in each record is an operational
      choice made by the Signer.

It should say:

   a= Acceptable hash algorithms (plain-text; OPTIONAL, defaults to
      allowing all algorithms).  A colon-separated list of hash
      algorithms that might be used.  Unrecognized algorithms MUST be
      ignored.  Refer to Section 3.3 for a discussion of the hash
      algorithms implemented by Signers and Verifiers.  The set of
      algorithms listed in this tag in each record is an operational
      choice made by the Signer.

Notes:

The correct tag is "a=" for algorithms not "h=". The latter is used for the "List of Included Headers in the Signature"
--VERIFIER NOTES--
The reporters are confused. The text in Section 3.6.1 is about the key records in the DNS, and the document is correct. Section 3.5 is where the dkim-signature header field is described (and that is also correct).

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