Re: Unknown key type

[Werner Koch]

On Mon, 22 May 2017 18:07, timemas...@sillydog.org said:
> Can someone please explain why I am getting a yellow bar on  a LOT of
> signed msgs saying that the key type is unknown??

Some of these mails are probably also from me.  By default I sign my
messages with an Ed25519 subkey which is a Curve25519 based ECC key
using the EdDSA algorithm.  Agreed, this algorithm is not yet officially
specified by OpenPGP and thus other software does not know about it and
tells you "unknown key type".

For other ECC keys, which use the ECDH or ECDSA algorithm, GnuPG 2.0.30
can display the algorithm but not use them (i.e. verify a signature).


Salam-Shalom,

   Werner

-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.


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Re: Unknown key type

[Matthias Apitz]

El día lunes, mayo 22, 2017 a las 02:06:56p. m. -0400, Brian Minton escribió:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
> 
> On Mon, May 22, 2017 at 12:07 PM, David Vallier 
> wrote:
> >  Can someone please explain why I am getting a yellow bar on  a LOT of
> >  signed msgs saying that the key type is unknown??
> >
> >  the exact msg is "Part of the message signed with unknown key; the key
> >  type is not supported by your version of GnuPG"
> >
> >  I am running GnuPG 2.0.30 (Gpg4Win 2.3.3) on a win 7 box.
> 
> 
> If I had to guess, Id say the sender of those messages is using ECC keys.
>  They are only supported in GnuPG 2.1.  In fact, Im using such a key to
> sign this message (but my key also has a DSA subkey, so gpg 2.0 should
> still verify the signature). So, you may see the warning on this message.
> -BEGIN PGP SIGNATURE-
> 
> iHUEARYIAB0WIQTu0BWAE9wubW4AHqQ3uVB6z/IBbgUCWSMoqQAKCRA3uVB6z/IB
> bphCAQDgR8N3EWlJX5sfzfXCVHFi3rWpXfinGtRbl8tlVxEm8AEA7gwKWQ5f3Z5s
> F20WPXhNIxnHF+UnIY4T829pSim4TQiIdQQBEQgAHRYhBPnEu3YOeD8N7BCmimuO
> s6Blz7qpBQJZIyipAAoJEGuOs6Blz7qpeN0A/R8IwSrOQreTFVB4gga79xz6XIKA
> MdBvmMhXY8LSuUhNAP0Z8bv/rQWSOtf7dGPTEDYPKRCs1kYguHULVlhs/Bcc3Q==
> =MOy5
> -END PGP SIGNATURE-

piping the above mail to gpg2 (2.1.19) gives:

If I had to guess, Id say the sender of those messages is using ECC keys.
 They are only supported in GnuPG 2.1.  In fact, Im using such a key to
sign this message (but my key also has a DSA subkey, so gpg 2.0 should
still verify the signature). So, you may see the warning on this message.
gpg: Signature made Mon May 22 20:06:33 2017 CEST
gpg:using EDDSA key EED0158013DC2E6D6E001EA437B9507ACFF2016E
gpg: Can't check signature: No public key
gpg: Signature made Mon May 22 20:06:33 2017 CEST
gpg:using DSA key F9C4BB760E783F0DEC10A68A6B8EB3A065CFBAA9
gpg: Can't check signature: No public key

matthias

-- 
Matthias Apitz, ✉ g...@unixarea.de, ⌂ http://www.unixarea.de/  ☎ 
+49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub
8. Mai 1945: Wer nicht feiert hat den Krieg verloren.
8 de mayo de 1945: Quien no festeja perdió la Guerra.
May 8, 1945: Who does not celebrate lost the War.


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Re: Unknown key type

[Brian Minton]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

On Mon, May 22, 2017 at 12:07 PM, David Vallier 
wrote:
>  Can someone please explain why I am getting a yellow bar on  a LOT of
>  signed msgs saying that the key type is unknown??
>
>  the exact msg is "Part of the message signed with unknown key; the key
>  type is not supported by your version of GnuPG"
>
>  I am running GnuPG 2.0.30 (Gpg4Win 2.3.3) on a win 7 box.


If I had to guess, Id say the sender of those messages is using ECC keys.
 They are only supported in GnuPG 2.1.  In fact, Im using such a key to
sign this message (but my key also has a DSA subkey, so gpg 2.0 should
still verify the signature). So, you may see the warning on this message.
-BEGIN PGP SIGNATURE-

iHUEARYIAB0WIQTu0BWAE9wubW4AHqQ3uVB6z/IBbgUCWSMoqQAKCRA3uVB6z/IB
bphCAQDgR8N3EWlJX5sfzfXCVHFi3rWpXfinGtRbl8tlVxEm8AEA7gwKWQ5f3Z5s
F20WPXhNIxnHF+UnIY4T829pSim4TQiIdQQBEQgAHRYhBPnEu3YOeD8N7BCmimuO
s6Blz7qpBQJZIyipAAoJEGuOs6Blz7qpeN0A/R8IwSrOQreTFVB4gga79xz6XIKA
MdBvmMhXY8LSuUhNAP0Z8bv/rQWSOtf7dGPTEDYPKRCs1kYguHULVlhs/Bcc3Q==
=MOy5
-END PGP SIGNATURE-
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Re: Unknown key type

[antony]

On May 22, 2017 12:07:39 PM EDT, David Vallier  wrote:
>Can someone please explain why I am getting a yellow bar on  a LOT of
>signed msgs saying that the key type is unknown??
>
>the exact msg is "Part of the message signed with unknown key; the key
>type is not supported by your version of GnuPG"
>
>I am running GnuPG 2.0.30 (Gpg4Win 2.3.3) on a win 7 box.

They are probably signed with elliptic curve keys which are not supported by 
the version of libgcrypt used in that version of gnupg IIRC.
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

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Unknown key type

[David Vallier]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
 
Can someone please explain why I am getting a yellow bar on  a LOT of
signed msgs saying that the key type is unknown??

the exact msg is "Part of the message signed with unknown key; the key
type is not supported by your version of GnuPG"

I am running GnuPG 2.0.30 (Gpg4Win 2.3.3) on a win 7 box.


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