bug#37025: 27.0.50; smime signing and encryption does not work any longer

bug#37025: 27.0.50; smime signing and encryption does not work any longer

[Uwe Brauer]

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Hi 

I just compiled emacs master which corresponds to 
comit  "b06917a4912a60402025286d07d4a195749245c4"

However now signing and encrypting using smime does not work any longer.
I selected the option (Attachments-->Change Security Method--> smime)

I also use the setting I have used in the past 


(setq message-forward-show-mml 'best)
(epa-file-enable)
(setq epg-debug t)
(setq mm-decrypt-option 'always)
(setq mm-verify-option 'always)
(setq gnus-buttonized-mime-types '("multipart/encrypted" "multipart/signed"))


(setq mml-smime-use 'epg)
(setq mml2015-use 'epg)


(setq epg-gpg-home-directory "/home/oub/.gnupg")
(setq epg-key-id "65AD077A")


But when I add a tag like 
 <#secure method=smime mode=sign>

And then the message, nor is gpgsm called nor is the message signed (the
same happens for encryption)

All this worked still in emacs master commit 
1d75604eaded6a8482d28d57bc8e6a4d99d5caee
from April.

I could try to bisect the commits and recompile emacs every time, but
that looks like bit like an ordeal. The news are silent about that
issue.
I also greped in the log message but could not find any hints.

That for me is a serious issue so any help would be greatly appreciated.

Uwe Brauer


Recent messages:
Checking 34 files in /opt/emacs27/share/emacs/27.0.50/lisp/emulation...
Checking 182 files in /opt/emacs27/share/emacs/27.0.50/lisp/emacs-lisp...
Checking 24 files in /opt/emacs27/share/emacs/27.0.50/lisp/cedet...
Checking 59 files in /opt/emacs27/share/emacs/27.0.50/lisp/calendar...
Checking 87 files in /opt/emacs27/share/emacs/27.0.50/lisp/calc...
Checking 109 files in /opt/emacs27/share/emacs/27.0.50/lisp/obsolete...
Checking for load-path shadows...done
Invalid face reference: font-lock-comment-warn-face [20 times]
QuitInvalid face reference: font-lock-comment-warn-face
Invalid face reference: font-lock-comment-warn-face [23 times]

Configured using:
 'configure --prefix=/opt/emacs27 --with-x-toolkit=athena
 --with-mailutils'

Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GSETTINGS GLIB NOTIFY
INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF
XFT ZLIB TOOLKIT_SCROLL_BARS LUCID X11 XDBE XIM THREADS PDUMPER LCMS2
GMP

Important settings:
  value of $LC_ALL: en_US.UTF8
  value of $LC_MONETARY: es_ES.UTF-8
  value of $LC_NUMERIC: es_ES.UTF-8
  value of $LC_TIME: es_ES.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  cursor-sensor-mode: t
  TeX-PDF-mode: t
  TeX-source-correlate-mode: t
  path-headerline-mode: t
  global-pabbrev-mode: t
  save-place-mode: t
  global-diff-hl-mode: t
  display-time-mode: t
  global-orglink-mode: t
  better-registers: t
  recentf-mode: t
  gnus-undo-mode: t
  csv-field-index-mode: t
  shell-dirtrack-mode: t
  cl-old-struct-compat-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Load-path shadows:
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Features:
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Memory information:
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 (symbols 48 84514 1)
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[-- Attachment #2: smime.p7s --]
[-- Type: application/pkcs7-signature, Size: 0 bytes --]

bug#37025: [found the culprit] (was: bug#37025: 27.0.50; smime signing and encryption does not work any longer)

[Uwe Brauer]

>>> "UB" == Uwe Brauer <oub@mat.ucm.es> writes:

Hi 

finally I bisect and found the culprit:


git bisect good
74579d3d2bb82f300a6f2d81b7b559f0a24061db is the first bad commit
commit 74579d3d2bb82f300a6f2d81b7b559f0a24061db
Author: Teemu Likonen <tlikonen@iki.fi>
Date:   Sat Jul 13 02:12:58 2019 +0200

    Use the gpg --sender option

    * lisp/epg.el (epg-start-encrypt)
    * lisp/gnus/mml-sec.el (mml-secure-epg-encrypt): When
    'mml-secure-openpgp-sign-with-sender' is non-nil message sender's
    email address (in addition to its old behaviour) will also be used
    to set gpg's "--sender email@domain" option.

:040000 040000 20160088e04c63a19c67d0635d3ba9248f03fd8d fa805f311eacaef3fdccee56d7286bf97059afa8 M      etc
:040000 040000 87ecd6ed235d466fc9716676a621bdf8d04a6b90 8323f689077100be17ffc82bf96958e72954ed93 M      lisp


This commit broke smime encoding/signing 

Any comments please.  @Teemu?

bug#37025: [found the culprit] (was: bug#37025: 27.0.50; smime signing and encryption does not work any longer)

[Teemu Likonen]

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Uwe Brauer [2019-08-14T20:54:47+02] wrote:

> finally I bisect and found the culprit:
>
>
> git bisect good
> 74579d3d2bb82f300a6f2d81b7b559f0a24061db is the first bad commit
> commit 74579d3d2bb82f300a6f2d81b7b559f0a24061db
> Author: Teemu Likonen <tlikonen@iki.fi>
> Date:   Sat Jul 13 02:12:58 2019 +0200
>
>     Use the gpg --sender option
>
>     * lisp/epg.el (epg-start-encrypt)
>     * lisp/gnus/mml-sec.el (mml-secure-epg-encrypt): When
>     'mml-secure-openpgp-sign-with-sender' is non-nil message sender's
>     email address (in addition to its old behaviour) will also be used
>     to set gpg's "--sender email@domain" option.

Thanks for the report and bisecting. I think we can fix the bug by
including "--sender" option only with openpgp protocol (i.e. gpg). Now
I'm going to bed but will come back.

-- 
///  OpenPGP key: 4E1055DC84E9DFF613D78557719D69D324539450
//  https://keys.openpgp.org/search?q=tlikonen@iki.fi
/  https://keybase.io/tlikonen  https://github.com/tlikonen

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 694 bytes --]

bug#37025: [found the culprit]

[Glenn Morris]

Teemu Likonen wrote:

> Thanks for the report and bisecting. I think we can fix the bug by
> including "--sender" option only with openpgp protocol (i.e. gpg).

gpg --sender
   -> gpg: invalid option "--sender"  # RHEL 7.6 with gpg 2.0.22

The option seems to only by present since gpg 2.1.15.
https://gnupg.org/download/release_notes.html

Ideally you should test if it is supported or not.

bug#37025: [found the culprit]

[Teemu Likonen]

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Glenn Morris [2019-08-14T21:39:37-04] wrote:

> Teemu Likonen wrote:
>> Thanks for the report and bisecting. I think we can fix the bug by
>> including "--sender" option only with openpgp protocol (i.e. gpg).

Because --sender is an OpenPGP thing (gpg) it is logical to narrow its
use to that protocol only. Here's the first fix:


diff --git i/lisp/epg.el w/lisp/epg.el
index ce58c520f1..905440d183 100644
--- i/lisp/epg.el
+++ w/lisp/epg.el
@@ -1618,7 +1618,8 @@ epg-start-sign
 				      (car (epg-key-sub-key-list signer)))))
 			     (epg-context-signers context)))
                      (let ((sender (epg-context-sender context)))
-                       (when (stringp sender)
+                       (when (and (eql 'OpenPGP (epg-context-protocol context))
+                                  (stringp sender))
                          (list "--sender" sender)))
 		     (epg--args-from-sig-notations
 		      (epg-context-sig-notations context))
@@ -1714,7 +1715,8 @@ epg-start-encrypt
 					  (car (epg-key-sub-key-list
 						signer)))))
 				 (epg-context-signers context))))
-		     (if sign
+		     (if (and sign
+                              (eql 'OpenPGP (epg-context-protocol context)))
                          (let ((sender (epg-context-sender context)))
                            (when (stringp sender)
                              (list "--sender" sender))))
diff --git i/lisp/gnus/mml-sec.el w/lisp/gnus/mml-sec.el
index 07d2028534..e0ec829617 100644
--- i/lisp/gnus/mml-sec.el
+++ w/lisp/gnus/mml-sec.el
@@ -915,7 +915,7 @@ mml-secure-epg-encrypt
     (when sign
       (setq signers (mml-secure-signers context signer-names))
       (setf (epg-context-signers context) signers)
-      (when mml-secure-openpgp-sign-with-sender
+      (when (and (eq 'OpenPGP protocol) mml-secure-openpgp-sign-with-sender)
         (setf (epg-context-sender context) sender)))
     (when (eq 'OpenPGP protocol)
       (setf (epg-context-armor context) t)
@@ -945,10 +945,10 @@ mml-secure-epg-sign
 	 signature micalg)
     (when (eq 'OpenPGP protocol)
       (setf (epg-context-armor context) t)
-      (setf (epg-context-textmode context) t))
+      (setf (epg-context-textmode context) t)
+      (when mml-secure-openpgp-sign-with-sender
+        (setf (epg-context-sender context) sender)))
     (setf (epg-context-signers context) signers)
-    (when mml-secure-openpgp-sign-with-sender
-      (setf (epg-context-sender context) sender))
     (when (mml-secure-cache-passphrase-p protocol)
       (epg-context-set-passphrase-callback
        context


> gpg --sender
>    -> gpg: invalid option "--sender"  # RHEL 7.6 with gpg 2.0.22
>
> The option seems to only by present since gpg 2.1.15.
> https://gnupg.org/download/release_notes.html
>
> Ideally you should test if it is supported or not.

So there should also be version checking in epg.el's epg-start-sign and
epg-start-encrypt functions (or somewhere). Currently I don't know if
there are useful infrastructure in epg for dealing with different
versions of gpg.

-- 
///  OpenPGP key: 4E1055DC84E9DFF613D78557719D69D324539450
//  https://keys.openpgp.org/search?q=tlikonen@iki.fi
/  https://keybase.io/tlikonen  https://github.com/tlikonen

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 694 bytes --]

bug#37025: [found the culprit]

[Uwe Brauer]

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>>> "TL" == Teemu Likonen <tlikonen@iki.fi> writes:

   > Glenn Morris [2019-08-14T21:39:37-04] wrote:
   >> Teemu Likonen wrote:
   >>> Thanks for the report and bisecting. I think we can fix the bug by
   >>> including "--sender" option only with openpgp protocol (i.e. gpg).

   > Because --sender is an OpenPGP thing (gpg) it is logical to narrow its
   > use to that protocol only. Here's the first fix:

A couple of comments. 

    1. A quick fix. Since your patch is not applied. I tried to change
       my setting. To my surprise
       (mml-secure-smime-sign-with-sender nil)
       *did not help*, although I am using smime not opengpg.
       But
       (mml-secure-openpgp-sign-with-sender nil)
       *did help*.
       This should be mentioned in the documentation (NEWS and in the
       relevant doc strings)

    2. I am not sure what will happen with older pgp versions. A quick
       fix would be to set the above variable to nil

    3. I think this issue should be discussed on the devel list.

    4. Who and when your patch will be applied?


[Snip]...



   >> gpg --sender
   -> gpg: invalid option "--sender"  # RHEL 7.6 with gpg 2.0.22
   >> 
   >> The option seems to only by present since gpg 2.1.15.
   >> https://gnupg.org/download/release_notes.html
   >> 
   >> Ideally you should test if it is supported or not.

   > So there should also be version checking in epg.el's epg-start-sign and
   > epg-start-encrypt functions (or somewhere). Currently I don't know if
   > there are useful infrastructure in epg for dealing with different
   > versions of gpg.

Given that circumstance, is your change really worth the effort?

[-- Attachment #2: smime.p7s --]
[-- Type: application/pkcs7-signature, Size: 5025 bytes --]

bug#37025: [found the culprit]

[Teemu Likonen]

[-- Attachment #1: Type: text/plain, Size: 3805 bytes --]

Teemu Likonen [2019-08-15T07:48:24+03] wrote:

> So there should also be version checking in epg.el's epg-start-sign
> and epg-start-encrypt functions (or somewhere).

OK. Here's a patch with version checking. This patch includes everything
in the previous patch (that is, use "--sender" only with OpenPGP
protocol) and additionally this checks if gpg is at least version 2.1.15
which introduced the "--sender" option.


diff --git a/lisp/epg.el b/lisp/epg.el
index ce58c520f1..838cf6b9ea 100644
--- a/lisp/epg.el
+++ b/lisp/epg.el
@@ -1617,8 +1617,13 @@ epg-start-sign
 				     (epg-sub-key-id
 				      (car (epg-key-sub-key-list signer)))))
 			     (epg-context-signers context)))
-                     (let ((sender (epg-context-sender context)))
-                       (when (stringp sender)
+                     (let ((sender (epg-context-sender context))
+                           (version (cdr (assq 'version (epg-find-configuration
+                                                         'OpenPGP)))))
+                       (when (and (eql 'OpenPGP (epg-context-protocol context))
+                                  (stringp version)
+                                  (version<= "2.1.15" version)
+                                  (stringp sender))
                          (list "--sender" sender)))
 		     (epg--args-from-sig-notations
 		      (epg-context-sig-notations context))
@@ -1714,9 +1719,15 @@ epg-start-encrypt
 					  (car (epg-key-sub-key-list
 						signer)))))
 				 (epg-context-signers context))))
-		     (if sign
-                         (let ((sender (epg-context-sender context)))
-                           (when (stringp sender)
+		     (if (and sign
+                              (eql 'OpenPGP (epg-context-protocol context)))
+                         (let ((sender (epg-context-sender context))
+                               (version (cdr (assq 'version
+                                                   (epg-find-configuration
+                                                    'OpenPGP)))))
+                           (when (and (stringp version)
+                                      (version<= "2.1.15" version)
+                                      (stringp sender))
                              (list "--sender" sender))))
                      (if sign
 			 (epg--args-from-sig-notations
diff --git a/lisp/gnus/mml-sec.el b/lisp/gnus/mml-sec.el
index 07d2028534..e0ec829617 100644
--- a/lisp/gnus/mml-sec.el
+++ b/lisp/gnus/mml-sec.el
@@ -915,7 +915,7 @@ mml-secure-epg-encrypt
     (when sign
       (setq signers (mml-secure-signers context signer-names))
       (setf (epg-context-signers context) signers)
-      (when mml-secure-openpgp-sign-with-sender
+      (when (and (eq 'OpenPGP protocol) mml-secure-openpgp-sign-with-sender)
         (setf (epg-context-sender context) sender)))
     (when (eq 'OpenPGP protocol)
       (setf (epg-context-armor context) t)
@@ -945,10 +945,10 @@ mml-secure-epg-sign
 	 signature micalg)
     (when (eq 'OpenPGP protocol)
       (setf (epg-context-armor context) t)
-      (setf (epg-context-textmode context) t))
+      (setf (epg-context-textmode context) t)
+      (when mml-secure-openpgp-sign-with-sender
+        (setf (epg-context-sender context) sender)))
     (setf (epg-context-signers context) signers)
-    (when mml-secure-openpgp-sign-with-sender
-      (setf (epg-context-sender context) sender))
     (when (mml-secure-cache-passphrase-p protocol)
       (epg-context-set-passphrase-callback
        context



-- 
///  OpenPGP key: 4E1055DC84E9DFF613D78557719D69D324539450
//  https://keys.openpgp.org/search?q=tlikonen@iki.fi
/  https://keybase.io/tlikonen  https://github.com/tlikonen

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 694 bytes --]

bug#37025: [found the culprit]

[Uwe Brauer]

[-- Attachment #1: Type: text/plain, Size: 555 bytes --]

>>> "TL" == Teemu Likonen <tlikonen@iki.fi> writes:

   > Teemu Likonen [2019-08-15T07:48:24+03] wrote:
   >> So there should also be version checking in epg.el's epg-start-sign
   >> and epg-start-encrypt functions (or somewhere).

   > OK. Here's a patch with version checking. This patch includes everything
   > in the previous patch (that is, use "--sender" only with OpenPGP
   > protocol) and additionally this checks if gpg is at least version 2.1.15
   > which introduced the "--sender" option.

Thanks! Any idea when this patch will be applied?

[-- Attachment #2: smime.p7s --]
[-- Type: application/pkcs7-signature, Size: 5025 bytes --]

bug#37025: [found the culprit]

[Teemu Likonen]

[-- Attachment #1: Type: text/plain, Size: 4232 bytes --]

Teemu Likonen [2019-08-15T19:08:01+03] wrote:

> Here's a patch with version checking. This patch includes everything
> in the previous patch (that is, use "--sender" only with OpenPGP
> protocol) and additionally this checks if gpg is at least version
> 2.1.15 which introduced the "--sender" option.

The code is probably clearer if we define a separate predicate function
for checking GnuPG version. I made another version of the patch which
defines function epg-required-version-p (epg-config.el) and uses the
function in epg.el. The function is used twice in my patch but it can be
useful in the future.


diff --git a/lisp/epg-config.el b/lisp/epg-config.el
index 5549068169..54328290c8 100644
--- a/lisp/epg-config.el
+++ b/lisp/epg-config.el
@@ -262,6 +262,15 @@ epg-check-configuration
           (throw 'version-ok t)))
       (error "Unsupported version: %s" version))))
 
+(defun epg-required-version-p (protocol required-version)
+  "Verify a sufficient version of GnuPG for specific protocol.
+PROTOCOL is symbol, either `OpenPGP' or `CMS'.  REQUIRED-VERSION
+is a string containing the required version number.  Return
+non-nil if that version or higher is installed."
+  (let ((version (cdr (assq 'version (epg-find-configuration protocol)))))
+    (and (stringp version)
+         (version<= required-version version))))
+
 ;;;###autoload
 (defun epg-expand-group (config group)
   "Look at CONFIG and try to expand GROUP."
diff --git a/lisp/epg.el b/lisp/epg.el
index ce58c520f1..6d377d07e2 100644
--- a/lisp/epg.el
+++ b/lisp/epg.el
@@ -1618,7 +1618,9 @@ epg-start-sign
 				      (car (epg-key-sub-key-list signer)))))
 			     (epg-context-signers context)))
                      (let ((sender (epg-context-sender context)))
-                       (when (stringp sender)
+                       (when (and (eql 'OpenPGP (epg-context-protocol context))
+                                  (epg-required-version-p 'OpenPGP "2.1.15")
+                                  (stringp sender))
                          (list "--sender" sender)))
 		     (epg--args-from-sig-notations
 		      (epg-context-sig-notations context))
@@ -1714,9 +1716,11 @@ epg-start-encrypt
 					  (car (epg-key-sub-key-list
 						signer)))))
 				 (epg-context-signers context))))
-		     (if sign
+		     (if (and sign
+                              (eql 'OpenPGP (epg-context-protocol context)))
                          (let ((sender (epg-context-sender context)))
-                           (when (stringp sender)
+                           (when (and (epg-required-version-p 'OpenPGP "2.1.15")
+                                      (stringp sender))
                              (list "--sender" sender))))
                      (if sign
 			 (epg--args-from-sig-notations
diff --git a/lisp/gnus/mml-sec.el b/lisp/gnus/mml-sec.el
index 07d2028534..e0ec829617 100644
--- a/lisp/gnus/mml-sec.el
+++ b/lisp/gnus/mml-sec.el
@@ -915,7 +915,7 @@ mml-secure-epg-encrypt
     (when sign
       (setq signers (mml-secure-signers context signer-names))
       (setf (epg-context-signers context) signers)
-      (when mml-secure-openpgp-sign-with-sender
+      (when (and (eq 'OpenPGP protocol) mml-secure-openpgp-sign-with-sender)
         (setf (epg-context-sender context) sender)))
     (when (eq 'OpenPGP protocol)
       (setf (epg-context-armor context) t)
@@ -945,10 +945,10 @@ mml-secure-epg-sign
 	 signature micalg)
     (when (eq 'OpenPGP protocol)
       (setf (epg-context-armor context) t)
-      (setf (epg-context-textmode context) t))
+      (setf (epg-context-textmode context) t)
+      (when mml-secure-openpgp-sign-with-sender
+        (setf (epg-context-sender context) sender)))
     (setf (epg-context-signers context) signers)
-    (when mml-secure-openpgp-sign-with-sender
-      (setf (epg-context-sender context) sender))
     (when (mml-secure-cache-passphrase-p protocol)
       (epg-context-set-passphrase-callback
        context

-- 
///  OpenPGP key: 4E1055DC84E9DFF613D78557719D69D324539450
//  https://keys.openpgp.org/search?q=tlikonen@iki.fi
/  https://keybase.io/tlikonen  https://github.com/tlikonen

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[-- Type: application/pgp-signature, Size: 694 bytes --]

bug#37025: [found the culprit]

[Lars Ingebrigtsen]

Teemu Likonen <tlikonen@iki.fi> writes:

> The code is probably clearer if we define a separate predicate function
> for checking GnuPG version. I made another version of the patch which
> defines function epg-required-version-p (epg-config.el) and uses the
> function in epg.el. The function is used twice in my patch but it can be
> useful in the future.

Looks good to me; I've now applied it to the trunk.  Uwe, can you
confirm that this fixes the problem you were seeing?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#37025: [found the culprit]

[Uwe Brauer]

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>>> "LI" == Lars Ingebrigtsen <larsi@gnus.org> writes:

   > Teemu Likonen <tlikonen@iki.fi> writes:
   >> The code is probably clearer if we define a separate predicate function
   >> for checking GnuPG version. I made another version of the patch which
   >> defines function epg-required-version-p (epg-config.el) and uses the
   >> function in epg.el. The function is used twice in my patch but it can be
   >> useful in the future.

   > Looks good to me; I've now applied it to the trunk.  Uwe, can you
   > confirm that this fixes the problem you were seeing?

Let me pull and check. I presume these are commits
42ba6200af10c00c72ac13912d6fb42a7af88058 
and 
f5fa0c9062d065dc61fdff92b56b9f5da439a83d

Uwe 

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bug#37025: [confirmed] (was: bug#37025: [found the culprit])

[Uwe Brauer]

>>> "UB" == Uwe Brauer <oub@mat.ucm.es> writes:

>>> "LI" == Lars Ingebrigtsen <larsi@gnus.org> writes:
   >> Teemu Likonen <tlikonen@iki.fi> writes:
   >>> The code is probably clearer if we define a separate predicate function
   >>> for checking GnuPG version. I made another version of the patch which
   >>> defines function epg-required-version-p (epg-config.el) and uses the
   >>> function in epg.el. The function is used twice in my patch but it can be
   >>> useful in the future.

   >> Looks good to me; I've now applied it to the trunk.  Uwe, can you
   >> confirm that this fixes the problem you were seeing?

   > Let me pull and check. I presume these are commits
   > 42ba6200af10c00c72ac13912d6fb42a7af88058 
   > and 
   > f5fa0c9062d065dc61fdff92b56b9f5da439a83d


I just compiled 42ba6200af10c00c72ac13912d6fb42a7af88058 

Having set the variables 


 (mml-secure-openpgp-sign-with-sender t)
 (mml-secure-smime-sign-with-sender t)

Everything worked as expected.

While it did not before applying 

Commits 

 42ba6200af10c00c72ac13912d6fb42a7af88058 

 f5fa0c9062d065dc61fdff92b56b9f5da439a83d

bug#37025: [confirmed] (was: bug#37025: [found the culprit])

[Teemu Likonen]

[-- Attachment #1: Type: text/plain, Size: 547 bytes --]

Uwe Brauer [2019-08-26T09:31:13+02] wrote:

> I just compiled 42ba6200af10c00c72ac13912d6fb42a7af88058 
>
> Having set the variables 
>
>
>  (mml-secure-openpgp-sign-with-sender t)
>  (mml-secure-smime-sign-with-sender t)
>
> Everything worked as expected.

Thank you for the report and for testing the S/MIME side (gpgsm). I use
only OpenPGP (gpg).

-- 
///  OpenPGP key: 4E1055DC84E9DFF613D78557719D69D324539450
//  https://keys.openpgp.org/search?q=tlikonen@iki.fi
/  https://keybase.io/tlikonen  https://github.com/tlikonen

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 694 bytes --]

bug#37025: [confirmed]

[Lars Ingebrigtsen]

Uwe Brauer <oub@mat.ucm.es> writes:

> I just compiled 42ba6200af10c00c72ac13912d6fb42a7af88058 
>
> Having set the variables 
>
>  (mml-secure-openpgp-sign-with-sender t)
>  (mml-secure-smime-sign-with-sender t)
>
> Everything worked as expected.

Thanks for checking; closing the bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#37025: 27.0.50; smime signing and encryption does not work any longer

[Uwe Brauer]

Hi

There is a ongoing discussion about a bug which was introduced in commit 
74579d3d2bb82f300a6f2d81b7b559f0a24061db 

And which causes smime to fail (message are not signed nor encrypted),
although this commits should only concern openpg.

Moreover it not clear whether this commit is compatible with older
openpg version, that don't possess the --sender option (for example in
RH 7).

There is however a quick «fix»


       (mml-secure-smime-sign-with-sender nil)
       *did not help*, although I am using smime not opengpg.
       But
       (mml-secure-openpgp-sign-with-sender nil)
       *did help*.

       This should be mentioned in the documentation (NEWS and in the
       relevant doc strings)

So far Teemu already sent a patch to the bugs list. It would be good if
either this patch were applied as soon as possible or, even better, the
patch were to be discussed, since it might causes problems with older
openpgp versions.

Regards

Uwe Brauer 

Re: bug#37025: 27.0.50; smime signing and encryption does not work any longer

[Eli Zaretskii]

> From: Uwe Brauer <oub@mat.ucm.es>
> Date: Thu, 15 Aug 2019 09:53:20 +0200
> 
> There is a ongoing discussion about a bug which was introduced in commit 
> 74579d3d2bb82f300a6f2d81b7b559f0a24061db 

Indeed.  And there's no need to split that discussion into 2 mailing
lists.  Those who are relevant to making the decision about the fix
read the bug list anyway.

> There is however a quick «fix»
> 
> 
>        (mml-secure-smime-sign-with-sender nil)
>        *did not help*, although I am using smime not opengpg.
>        But
>        (mml-secure-openpgp-sign-with-sender nil)
>        *did help*.
> 
>        This should be mentioned in the documentation (NEWS and in the
>        relevant doc strings)
> 
> So far Teemu already sent a patch to the bugs list. It would be good if
> either this patch were applied as soon as possible or, even better, the
> patch were to be discussed, since it might causes problems with older
> openpgp versions.

Two comments (1) please wait for at least a few days before deciding
that the matter stalled and needs to be expedited, let alone in
another list; and (2) I personally didn't get the impression that the
proposed fix is final and/or agreed upon, due to the issue with the
version of gpg.

Meanwhile, you have the patch, and can apply it locally if it's urgent
for you.

Re: bug#37025: 27.0.50; smime signing and encryption does not work any longer

[Uwe Brauer]

[-- Attachment #1: Type: text/plain, Size: 840 bytes --]



   > Indeed.  And there's no need to split that discussion into 2 mailing
   > lists.  Those who are relevant to making the decision about the fix
   > read the bug list anyway.
Ok.


   > Two comments (1) please wait for at least a few days before deciding
   > that the matter stalled and needs to be expedited, let alone in
   > another list; and (2) I personally didn't get the impression that the
   > proposed fix is final and/or agreed upon, due to the issue with the
   > version of gpg.

There was a second patch which checked the pgp version. However it is
not clear to me what was agreed on. So what is the general polics in
such a case. A change was introduced, which presented a bug for some use
case, a fix was not agreed or applied.

So shouldn't that commit not be removed, at least temporally, till a fix
is agreed upon?

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Re: bug#37025: 27.0.50; smime signing and encryption does not work any longer

[Eli Zaretskii]

> From: Uwe Brauer <oub@mat.ucm.es>
> Date: Sun, 18 Aug 2019 14:29:48 +0200
> 
> There was a second patch which checked the pgp version. However it is
> not clear to me what was agreed on. So what is the general polics in
> such a case.

We wait for a few days (a week or two) and if no one objects, we push.

> A change was introduced, which presented a bug for some use case, a
> fix was not agreed or applied.
> 
> So shouldn't that commit not be removed, at least temporally, till a fix
> is agreed upon?

Only if the problem is grave and very urgent.  In this case, I don't
think it is, and you can revert that commit locally in the meantime if
it gets in your way too much.

Re: bug#37025: 27.0.50; smime signing and encryption does not work any longer

[Teemu Likonen]

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Uwe Brauer [2019-08-18T14:29:48+02] wrote:

> There was a second patch which checked the pgp version. However it is
> not clear to me what was agreed on. So what is the general polics in
> such a case. A change was introduced, which presented a bug for some use
> case, a fix was not agreed or applied.

Maybe nobody has even read the patch code yet, except me. The patch adds
a couple of "if" conditions so that --sender option is only used with
OpenPGP protocol (that is, with gpg and not with gpgsm) and only with
gpg version 2.1.15 and higher because that version added the option.

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=37025#23

-- 
///  OpenPGP key: 4E1055DC84E9DFF613D78557719D69D324539450
//  https://keys.openpgp.org/search?q=tlikonen@iki.fi
/  https://keybase.io/tlikonen  https://github.com/tlikonen

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