When trying to decrypt a file for a specific key and the passphrase present in a
file, gpg still asks for a passphrase via pinentry and refuses to accept the file.
strace suggests that the file is actually read but the content is ignored.
Using a non-existent passphrase-file will give an "File not found" error.
Typing in the passphrase by hand still works.
Using --batch --passphrase-file works in gpg (GnuPG) 1.4.16 on ubuntu.
- arch linux package: core/gnupg 2.1.2-1
Steps to reproduce:
$ gpg --homedir . --gen-key
gpg: WARNING: unsafe permissions on homedir './'
gpg (GnuPG) 2.1.2; Copyright (C) 2015 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Note: Use "gpg2 --full-gen-key" for a full featured key generation dialog.
GnuPG needs to construct a user ID to identify your key.
Real name: tester
Email address: email@example.com
You selected this USER-ID:
generate key with passphrase "123"
$ echo "123" > passphrase
$ echo "myfile" > file
$ gpg --homedir . --recipient firstname.lastname@example.org --output file.gpg --encrypt file
$ gpg --homedir . --batch --passphrase-file passphrase --output file-2 file.gpg
Asks for the passphrase despite the --batch mode
gpg: encrypted with 2048-bit RSA key, ID 88B483A6, created 2015-03-17
gpg: public key decryption failed: Operation cancelled
gpg: decryption failed: No secret key