Method, system and computer program product for implementing a trusted counter in a personal communication device. In particular, the method, system and computer program product utilizes cryptography and an external, read-write storage device that stores important state information that cannot be modified...http://www.google.com.au/patents/US7178041?utm_source=gb-gplus-sharePatent US7178041 - Method, system and computer program product for a trusted counter in an external security element for securing a personal communication device
