The MIFARE® DESFire® EV2 card introduces an enhanced Secure Messaging protocol designed to guarantee the confidentiality, integrity and authenticity of data exchanged between the card and the reader. This protocol has several key features:
1. Advanced encryption :
It uses AES-128 encryption to protect data during transmission, ensuring that sensitive information remains confidential and resistant to unauthorised access.
2. Data integrity and authenticity:
Incorporates mechanisms to verify that data has not been altered during transmission and confirms the authenticity of the communicating parties, protecting against attempts at forgery and identity theft.
3. Protection against replay and interleaving attacks :
The system implements protective measures to prevent attackers from capturing and retransmitting valid data exchanges, ensuring that each transaction is unique and cannot be reused for malicious purposes.