ietf-dkim
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Re: [ietf-dkim] draft Errata on RFC 4871

2009-01-26 20:38:30
Dave CROCKER wrote:

For a base spec to say "the value is opaque" and another spec to come along 
and 
say "I'm announcing the particular, and possibly interesting, scheme that I 
follow for creating that value, and I promise to conform to that scheme for 
all 
such values that I create" is just fine.
  

The phrase "the value is opaque" could be interpreted to mean that it
MUST NOT have any easily-discerned relationship to other things.  So any
message with an Author Signature (as defined in ADSP) would be in
violation of the base spec.  If it said "the value MAY be opaque" that's
probably reasonable.

-Jim

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