The <secret> tag uses the AES - Rijndael encryption algorithm with a 256 bit Rijndael cipher.  This is more secure than the Xtea algorithm used with the <private> tag. See http://en.wikipedia.org/wiki/Advanced_Encryption_Standard for more information.

 

To use this encryption. you will need to download the pyRijndael.py module  by Jeffrey Clement, available from http://jclement.ca/software/pyrijndael/ .  You can either install this into your Python installation or just save it in the same folder as ikog.py.