Function openpgp_verify_file 

fn openpgp_verify_file(
    file: PathBuf,
    signature: PathBuf,
    lookup: &VerifierLookup<'_>,
) -> Result<(), Error>

Verifies a file using a signature and a [VerifierLookup].

The success or failure of the verification is transmitted through logging.

Errors

Returns an error if

• the signature cannot be read as an OpenPGP signature
• the file cannot be read