It looks like the pfSense Captive Portal Voucher (http://doc.pfsense.org/index.php/Captive_Portal_Vouchers) has a defect.
Breaking Public Keys: How to Determine an Unknown RSA Public Modulus, http://eprint.iacr.org/2012/588.pdf. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/