Re: Message security; protected header fields

2024-05-08 Thread Steffen Nurpmeso
Werner Koch wrote in
 <875xvoza5j@jacob.g10code.de>:
 |Thanks for the summary.  I fully agree add these 2 cents:
 |
 |In particular using a fixed subject is not going to work in any real
 |business because you are not able to ignore mails.  For my part, I even
 |use a auto-responder to tell that mails with a three-dot subject are
 |ignored.
 |
 |There is a simpler method than autocrypt to initially convey a key.  If
 |you can't MIME-attach it, include your key in the signature (gpg's
 |--include-key-block).  This is what S/MIME does for decades.  If you
 |don't have the recipient's key (i.e. no Web Key Directory), signing the
 |first message allows the recipient to reply encrypted.

That is the real thing!  That should be made a standard feature in
PGP, only the plain key without any Web of Trust noise, it is so
easy for S/MIME, even my one can simply use *SSL library provided
standard interfaces to take that and save it somewhere.
(And, to me, a real DNSSEC-secured DNS entry that can easily be
grasped by anyone, like the DKIM TXT record.)

--steffen
|
|Der Kragenbaer,The moon bear,
|der holt sich munter   he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)


Re: Message security; protected header fields

2024-05-08 Thread Werner Koch
Hi!

Thanks for the summary.  I fully agree add these 2 cents:

In particular using a fixed subject is not going to work in any real
business because you are not able to ignore mails.  For my part, I even
use a auto-responder to tell that mails with a three-dot subject are
ignored.

There is a simpler method than autocrypt to initially convey a key.  If
you can't MIME-attach it, include your key in the signature (gpg's
--include-key-block).  This is what S/MIME does for decades.  If you
don't have the recipient's key (i.e. no Web Key Directory), signing the
first message allows the recipient to reply encrypted.


Shalom-Salam,

   Werner


-- 
The pioneers of a warless world are the youth that
refuse military service. - A. Einstein


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