Forum › MIFARE SmartCard IC`s › MIFARE DESFire › Is DESFire EV1 UID unique and always returned? › Re: Is DESFire EV1 UID unique and always returned?
Hi,
the MIFARE DESFire EV1 (like other MIFARE cards) offers the feature of random UID. The random UID feature is defined in the ISO/IEC 14443, and can be enabled by an authorized user.
If random UID is enabled, the UID can only be read by an authorized user in a secured way..
For the identification of cards we recommend to use an authentication (which provides the fact that only authorized readers can read authorized cards), and then transfer the UID using an encnrypted communication (to ensure privacy).
Renke
the MIFARE DESFire EV1 (like other MIFARE cards) offers the feature of random UID. The random UID feature is defined in the ISO/IEC 14443, and can be enabled by an authorized user.
If random UID is enabled, the UID can only be read by an authorized user in a secured way..
For the identification of cards we recommend to use an authentication (which provides the fact that only authorized readers can read authorized cards), and then transfer the UID using an encnrypted communication (to ensure privacy).
Renke
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