I'm working on a shell script that needs to run as root (with sudo) and uses gpg. Encryption works fine, but decryption refuses to use my secret key for some reason.
Specifically the command:
sudo gpg --homedir '/home/username/.gnupg' -d file.gpg
gpg: WARNING: unsafe ownership on homedir '/home/username/.gnupg' gpg: encrypted with 2048-bit RSA key, ID XXX, created YYYY-MM-DD "John Doe <email@example.com>" gpg: public key decryption failed: Permission denied gpg: decryption failed: No secret key
sudo gpg --homedir '/home/username/.gnupg' --list-secret-keys correctly lists the secret key, and I am able to decrypt the file with gpg as my normal user (just not with sudo), so there is nothing wrong with the key or the file.
I'm running gpg 2.2.19 on Manjaro.