$CONFIG{'no-sign'} = $params->{'no-sign'} if defined $params->{'no-sign'};
push @{$CONFIG{'key-files'}}, @{$params->{'key-files'}} if defined $params->{'key-files'};
$CONFIG{'no-sign'} = $params->{'no-sign'} if defined $params->{'no-sign'};
push @{$CONFIG{'key-files'}}, @{$params->{'key-files'}} if defined $params->{'key-files'};