Some key gen

$param = "";
$param .= "Key-Type: DSA\n";
$param .= "Key-Length: 1024\n";
$param .= "Subkey-Type: ELG-E\n";
$param .= "Subkey-Length: 768\n";
$param .= "Name-Real: http://exmaple.com/\n";
$param .= "Name-Email: ".$_POST["from"]."\n";
$param .= "Name-Comment: ".$_SERVER["REMOTE_ADDR"]."\n";
$param .= "Expire-Date: 1\n";
$param .= "%commit\n";
file_put_contents("$tmpDir/param.txt", $param);
shell_exec("gpg --homedir $tmpDir --batch --logger-fd 1 --gen-key $tmpDir/param.txt");