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Error: Missing one or more decryption keys. Please help

Created: 12 Sep 2011 • Updated: 19 Sep 2011 | 1 comment
This issue has been solved. See solution.

Our company sells products to the Federal Government and recieves their orders via email (Microsoft Outlook). The emails are in code and we use PGP to decrypt them. About every 4 or 5 emails, we get some sort of error message and it will not work (Error: No PGP Content). In the past I have had my contact at the Feds fix the problem. She usually had me delete me key, create a new one and email to her. Problem fixed. Now she has left that position and my new contact has no experience with PGP. When I got the error again, I deleting my key and sent the new one to my new contact. Now when I try to open the message the error I receive reads, "Missing one or more decryption keys." I have a feeling that my new contact is doing something wrong on their end when I send the new key. Any ideas on how I can fix this? I am going to have some unhappy customers very soon.

PS. Apparently I have a version of PGP that DOES NOT allow tech support. We bought this product and when I need help I have to spend $180 to get it fixed. Wow.

Thanks in advance for any help with this.

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dfinkelstein's picture

Most likely, the sender is still using your old key.  That's why you are getting the "Missing one or more decryption keys" error -- the file was not encrypted to a key that you have.  If you have a backup of your old key, you could try installing it, and see if you can decrypt the data.

The "No PGP Content" error is odd, and I'm not sure that you have been actually fixing it with the process you describe.  I think it is more likely that simply re-sending the email (though this time it is to a different key) was the fix.  It's hard to know why you see this error so frequently, but I don't see how it is related to your key.

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David Finkelstein

Symantec R&D

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