How do I convert an XML RSA key to a PEM file?

Question

I have two XML files, structured as follows:

My Key

   ... 
   ..         


        

Answer 1

Since xmlseclibs is PHP it seems like another PHP solution might be desirable. Here's how:

loadKey('
   ... 
   ... 
  
 ... 
   ... 
   ... 
   ... 
   ... 
   ... 
');

$privatekey = $rsa->getPrivateKey();
$publickey = $rsa->getPublicKey();
?>

phpseclib has built in support for XML keys, PuTTY keys and PKCS1 keys. It'll auto detect the format and load it and getPrivateKey / getPublicKey will output PKCS1 formatted keys by default if no parameters are provided. More info:

http://phpseclib.sourceforge.net/rsa/examples.html#convert