MIFARE Plus® S and Plus X
MIFARE Plus S and MIFARE Plus X are memory chips used to migrate MIFARE Classic systems to a higher level of security. They are used as MIFARE Classic during the migration phase and after the upgrade they have security level switch AES-128-based authentication and signing of the transferred data.
With MIFARE Plus X, complete AES data encryption also takes place during data transmission. Both chips are certified according to Common Criteria EAL 4+ and comply with the ISO standard 14443 A. The chips are received with 4- or 7-digit UID number and are equipped with a rewritable EEPROM data memory of 2048 bytes or 4096 bytes. They are fully backwards compatible with the MIFARE Classic 1K, 4K. (MIFARE, MIFARE Classic and MIFARE Plus are trademarks of NXP B.V)