"Bad Key" Error when Decrypting File Encrypted with Multiple Recipients

Weddell, Rob RJWeddell@MarathonOil.com
Fri Mar 7 21:41:02 2003


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Having a problem decrypting a file that we encrypted specifying two =
recipient keys, a partner's and our own.  Same gpg executable used for =
both encryption an d decryption.

We have no problem decrypting when the file is encrypted with our key =
alone.  Our partner has no problem decrypting when the file is encrypted =
with his key alone.

The following describes the problem:

>gpg --output e:\temp\file.txt --decrypt e:\temp\file.txt.gpg

You need a passphrase to unlock the secret key for
user: "MarathonOilCo (Marathon) <webMethodsCOE@mgrouproot.com>"
1024-bit ELG-E key, ID 5E2DADFD, created 2002-08-22 (main key ID =
C40C1C22)
Enter passphrase:
gpg: encrypted with 2048-bit ELG-E key, ID CB6C0197, created 2001-08-27
      "Kris Dunkelberg / Flower Club <krisd@flowerclub.com>"
gpg: encrypted with 1024-bit ELG-E key, ID 5E2DADFD, created 2002-08-22
      "MarathonOilCo (Marathon) <webMethodsCOE@mgrouproot.com>"
gpg: decryption failed: bad key
Enter passphrase:

Has anyone seen this problem or have any idea how to avoid it?

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<TITLE>&quot;Bad Key&quot; Error when Decrypting File Encrypted with =
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<P><FONT SIZE=3D2 FACE=3D"Courier New">Having a problem decrypting a =
file that we encrypted specifying two recipient keys, a partner's and =
our own.&nbsp; Same gpg executable used for both encryption an d =
decryption.</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Courier New">We have no problem decrypting =
when the file is encrypted with our key alone.&nbsp; Our partner has no =
problem decrypting when the file is encrypted with his key =
alone.</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Courier New">The following describes the =
problem:</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Courier New">&gt;gpg --output e:\temp\file.txt =
--decrypt e:\temp\file.txt.gpg</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Courier New">You need a passphrase to unlock =
the secret key for</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">user: &quot;MarathonOilCo =
(Marathon) &lt;webMethodsCOE@mgrouproot.com&gt;&quot;</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">1024-bit ELG-E key, ID 5E2DADFD, =
created 2002-08-22 (main key ID C40C1C22)</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">Enter passphrase:</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">gpg: encrypted with 2048-bit =
ELG-E key, ID CB6C0197, created 2001-08-27</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&quot;Kris Dunkelberg / Flower Club =
&lt;krisd@flowerclub.com&gt;&quot;</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">gpg: encrypted with 1024-bit =
ELG-E key, ID 5E2DADFD, created 2002-08-22</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
&quot;MarathonOilCo (Marathon) =
&lt;webMethodsCOE@mgrouproot.com&gt;&quot;</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">gpg: decryption failed: bad =
key</FONT>

<BR><FONT SIZE=3D2 FACE=3D"Courier New">Enter passphrase:</FONT>
</P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Has anyone seen this problem or have =
any idea how to avoid it?</FONT>
</P>

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