To send a file securely, you encrypt it with your private key and the recipient’s public key. I was trying to implement client side encryption of files backed up to AWS S3 using Duplicity, with keys on my Yubikey Neo created on an air gapped installation.It worked with local PGP keys, but I didn’t get it to decrypt using my PGP key on the Yubikey gpg: plain.txt: sign+encrypt failed: No secret key. I am using a Yubikey as a smart card. I am trying to add local signatures to a few of the public keys I have in my keyring, but using gpg --lsign-key fails with the message "no secret key" despite the fact that gpg --sign works. The below steps will go through the creation of the GPG keys and how to transfer them to the YubiKey. Related. You're mixing two very different encryption concepts here: Symmetrically encrypting data using a passphrase (a shared key) that both parties will need to have, and using asymmetric encryption to encrypt a (symmetric and usually … In order to re-create them, run the following command for each smart card: gpg --card-status YubiKey no … The public key can decrypt something that was encrypted using the private key. This is the key I need to delete from the card/yubikey. disconnected from all networks. A reader has contacted me about running into some problems when following this tutorial. gpg --import < ~/.gnupg/pubring.gpg Missing a secret key (smart card / USB token edition) Unfortunately GnuPG 2.2 doesn't migrate your smart card key stubs, when migrating from GnuPG 2.0. Useful commands here: help, for common commands; list to show your key, key N, to select a subkey where N is the index number of the key starting with 1, and keytocard to move the selected key to the card. For the record, I … !> If you don’t have a key selected, keytocard will move the master key. Possible problems. In this walkthrough a live CD of Ubuntu 16.04 desktop is used. gpg: no default secret key: No secret key. Which is entirely as expected, as the file was encrypted using john@johnsmith.com's public key.John will obviously need his private key in order to decrypt it. GPG shows that the secret key is not available, but there is a signing key … Fixing GPG Yubikey integration on macOS Big Sur ... gpg: decryption failed: No secret key This sent me into a wild rage, and after spending far too much time trying to debug with no results, I switched tactics; remove GPGTools and install gpg myself. 2. GPG relies on the idea of two encryption keys per person. To decrypt the file, they need their private key and your public key. gpg --decrypt to-decrypt.asc > decrypted.txt gpg: decryption failed: No secret key. > gpg: decryption failed: No secret key > I tried gpg --import but still doesn't help. In order to do things properly, the GPG key generation process needs to be performed on an air-gapped system (live CD, etc.) I have also tried reinstalling GPG4Win, again, to no avail. GPG decryption without passphrase, working on local but fails on IIS and hosted environment. 2) Decrypting. I have tried deleting my public key from my keyring and reimporting it, which had no effect. gpg: decryption failed: No secret key. Please note: printing public keys and the command gpg --card-status correctly work and print data. 3. failed to solve with frontend xxx: rpc error: code = Unknown desc = (…) out: `exit status 2: gpg: decryption failed: No secret key` 0. Essentially, since importing my keys onto my smartcard (YubiKey), I am able to encrypt data, but not to decrypt it again. keytocard without a key selected to move your master key into the Signing slot of your Yubikey. Each person has a private key and a public key. Air-Gapped Key Generation. If the output of that shows you have no secret key for GnuPG to use, then you need to create one: ... no default secret key: No secret key gpg: [stdin]: clearsign failed: No secret key – Entitize Dec 9 '16 at 16:38 @Entitize That seems to indicate gpg doesn’t think you have any keys to use for signing. Recipient ’ s public key, you encrypt it with your private key Yubikey no … Possible problems following... On the idea of two encryption keys per person the key i need delete! The private key and the recipient ’ s public key from my keyring and reimporting,... … Possible problems order to re-create them, run the following command for each smart.. 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