The signing key is chosen by default or can be set explicitly . Question is, when encrypting, it asks for a passphrase, but when decrypting, it DOESN'T ask for a passphrase. Passphrase explained - what it is, what is a good passphrase ... This command may be combined with --encrypt (to sign and encrypt a message), --symmetric (to sign and symmetrically encrypt a message), or both --encrypt and --symmetric (to sign and encrypt a message that can be decrypted using a secret key or a passphrase). Originally Posted by pinguin74. verbose. However, since things should work automatically, I will be creating a script to do the decryption of the file, hence, no way of entering a passphrase. Operational GPG Commands (Using the GNU Privacy Guard) Automating signing when using GPG - peterscheie.com Ironically, the first file I encrypted was a file test.txt which, of course, I had written my "new" passphrase down in. ubuntu - How can I automate gpg decryption which uses a passphrase ... This is very much a programming issue the same way ssh is a programming issue. To decrypt the above file, use the following command -. I'd rather not implement my own passphrase-cache. To decrypt a message the option --decrypt is used. Then go to that directory, and put a the lines. Using GPG to Encrypt Your Data - HECC Knowledge Base Batch encrypt and decrypt cmdlets in Powershell using GPG In Windows go to the command Prompt. without actually performing decryption. In process tab, browse the location of executable gpg.exe 3. When executing the above command, you'll want to use the actual ID of your GPG key. Having the passphrase near the thing that needs to be decrypted automatically is probably not a good idea. File decryption using GPG command line - Winbatch -Generate an gpg output with a decrypted output file. allow-preset-passphrase. If you are encrypting and signing, or just signing, then you will need the key and passphrase. Or if I use the following arguments then I got pop up for passphrase, i dont want to enter passphrase from pop up, i only want to pass passphrase from program : string arguments = "--passphrase-fd 0 " + " --output " + outputName + " --decrypt " + inputName;][1]