Unable to encrypt file with private/public key

Haritwal, Dhiraj Dhiraj.Haritwal at ap.sony.com
Mon Dec 29 15:57:18 CET 2014

Almost done now. After I signed partner’s public key, that warring has gone.

I am using below command to encrypt file with my private key & partner’s public key & partner is using my private key & their public key to decrypt it but it’s getting fail. M I using anything wrong here.

./gpg --local-user 'MY USER’ --recipient partner_pubkey --encrypt --armor /tmp/test/data1.CSV

Tried to use --sign which is asking passphrase which don’t want to use. Can we sign without passphrase & only with public/private key.


From: Pete Stephenson [mailto:pete at heypete.com]
Sent: 23 December 2014 11:24
To: Haritwal, Dhiraj
Cc: gnupg-users at gnupg.org
Subject: RE: Unable to encrypt file with private/public key

On Dec 22, 2014 7:30 AM, "Haritwal, Dhiraj" <Dhiraj.Haritwal at ap.sony.com<mailto:Dhiraj.Haritwal at ap.sony.com>> wrote:
> Thank you very much for all the explanation/links. Now things are bit clear.
> Now I have to encrypt file with partner's Public Key. I tried with below command which is still showing warning message (gpg: 89709B71: There is no assurance this key belongs to the named user) whereas if I am checking partner_pubkey, it's showing full trust. How can I remove this message. Even I have added partner's public key as trusted.
> ./gpg --encrypt --recipient partner_pubkey --armor /tmp/test/data.CSV

I'm glad things are working better.

To resolve the issue with the assurance message, manually verify that the key belongs to the recipient (e.g. meet in person or call them and verify the fingerprint of their key) and then sign the key using GnuPG. (gpg --sign-key 0xKEYID)

In GnuPG you vouch that a particular public key belongs to a person (or organization) by signing their public key. This signature can be local or published publicly.

"Trust" in GnuPG is different, and reflects how much you trust the other key to correctly vouch for the identity of others. If you set their key as fully trusted, keys that are signed by that key are treated by your copy of GnuPG with the same level of assurance as if you signed them yourself. Typically this should only be reserved for people you know to always check the identity of other people thoroughly and correctly before signing their keys. The default is for trust to be set to "marginal".

By combining signatures and trust, one forms a "web of trust": https://en.wikipedia.org/wiki/Web_of_trust



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