I try to make a gpg encryption/decryption on my server, for encryption i make this command line :
gpg --output test.txt.gpg --encrypt test.txt
and then i enter a user ID and my file is created.
But after, when i want to decrypt this file with same commande :
gpg --output result.txt --decrypt test.txt.gpg
result is :
gpg: encrypted with 2048-bit RSA key, ID FF070B4D, created 2017-07-19
"droli mail_adress"
gpg: decryption failed: No secret key
i don't understand why i can encrypt but can't decrypt after ?
$gpg --list-keys
/home/ssie/.gnupg/pubring.gpg
-----------------------------
pub 2048R/09C41BAC 2017-07-19
uid droli mail_adress
sub 2048R/6D2F1BE9 2017-07-19
$gpg --list-secret-keys
/home/ssie/.gnupg/secring.gpg
-----------------------------
sec 2048R/09C41BAC 2017-07-19
uid droli mail_adress sub
ssb 2048R/6D2F1BE9 2017-07-19
Edit after 2 hours :
I think to have find why : there were 2 different keys and 1 secret key for the same user. But now there is another issue : i deleted the wrong key and make the same test again.
the answer after decrypt is :
You need a passphrase to unlock the secret key for user: "droli mail_adress" 2048-bit RSA key, ID 6D2F1BE9, created 2017-07-19 (main key ID 09C41BAC)
can't connect to `/home/ssie/.gnupg/S.gpg-agent': Connection refused gpg-agent[32298]: command get_passphrase failed: Operation cancelled gpg: cancelled by user gpg: encrypted with 2048-bit RSA key, ID 6D2F1BE9, created 2017-07-19 "telefact " gpg: public key decryption failed: General error gpg: decryption failed: No secret key
what is this "S.gpg-agent" ? (the file /home/ssie/.gnupg/S.gpg-agent is empty in my case)
$ gpg-agent
--daemon GPG_AGENT_INFO=/tmp/gpg-1K7fOi/S.gpg-agent:18607:1; export GPG_AGENT_INFO;
After launching GPG_AGENT_INFO=/tmp/gpg-1K7fOi/S.gpg-agent:18607:1
and export GPG_AGENT_INFO
there is no ask about the gpg agent.
You need a passphrase to unlock the secret key for user: "droli mail_adress" 2048-bit RSA key, ID 6D2F1BE9, created 2017-07-19 (main key ID 09C41BAC)
gpg: cancelled by user gpg: encrypted with 2048-bit RSA key, ID 6D2F1BE9, created 2017-07-19 "droli mail_adress" gpg: public key decryption failed: General error gpg: decryption failed: No secret key
When creating a new key i have the same issue at the end :
Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O You need a Passphrase to protect your secret key.
gpg: cancelled by user gpg: Key generation canceled.
it's like there is a dyfonctionnement with the passphrase ?
Thanks for help.
gpg --list-secret-keys– jrtapsell