| 摘要 |
<p>#CMT# #/CMT# The device has a security unit constituted by a counter element (131) and an indicator element (132) for detecting an attack type e.g. Denial of Service type attack, and prohibiting data communication implementing an contactless interface (120) e.g. access attempt. Contacts and a contact interface (125) establish communication with an external electronic entity e.g. reader. An administrating unit is constituted by a central processing unit (140), a non volatile memory (150) e.g. read only memory, and an exploitation (151), to administrate the security unit implementing the contact interface. #CMT# : #/CMT# An independent claim is also included for a method for securing a portable electronic device. #CMT#USE : #/CMT# Portable electronic device e.g. universal serial bus (USB) key or microcircuit card (claimed). Can also be used for a personal computer, a communicating mobile terminal, a portable digital assistant or a passport. #CMT#ADVANTAGE : #/CMT# The method secures various interfaces such as access attempt, in different manner, for events implementing the interfaces. The method secures the identification attempt in different manner by which the identification attempt is triggered by the interfaces to adapt to the characteristics of each interface. The method blocks only the interface on which an attack is detected, and allows another interface to be usable for unblocking the blocked interface. The method avoids the damage to the carrier of the card and the provider of the card. The method avoids the certain attacks to detect all or any part of the secure value. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of elements incorporated in a component of a portable electronic device. 120 : Contactless interface 125 : Contact interface 131 : Counter element 132 : Indicator element 133 : Threshold value 140 : Central processing unit 150 : Non volatile memory 151 : Exploitation system #CMT#INDUSTRIAL STANDARDS : #/CMT# The contactless interface has a data reception unit implementing a contactless communication protocol that conforms to ISO14443 standard, near field communication standard or zigbee, and the contact interface has data reception unit implementing a protocol that conforms to ISO7816 standard. The portable electronic device conforms to federal information processing standards.</p> |
