Nedap developed AEOS end-to-end security in which principles of encryption and strong authentication for IT security are applied to achieve secure communication between and storage in all elements of the access control system. The solution combines storage of DESFire keys and digital certificates in a Secure Access Module inside its door controllers.
By storing DESFire keys in the SAM, card readers fulfil no role in decryption of data and secure communication between card and controller is guaranteed. By storing digital certificates in the same SAM strong authentication is achieved ensuring secure communication between controller and server. This way, the solution offers high levels of protection against physical and digital threats.