... is the primary designation for the touchless identification of objects on the basis of radio frequencies. RFID has become part of our everyday lives. Today, every car driver knows about RFID because the remote central locking function works using RFID. An RFID system consists of two components: The transponder; a data carrier with a radio frequency module that sends and receives data.The reading device; a read/write unit that communicates with the transponder.

The highest security requirements can be achieved through authentication. Based on the TeleSec Chipcard Operating System (TCOS), Smartcards with the secure E4 key that conforms with the ITSEC requirements have been developed, for which primion offers the B1 access reader. The E4 NetKey card has an internal GO number and a key. If a B1 reader recognises an RFID credential with a TCOS Smartcard in its read field, it sends the internal number to the IDT 32 access control unit, which is installed in a secure, inside location. This then transmits a randomly generated number to the credential, which is internally encrypted by the TCOS operating system on the credential and sent back to the IDT 32 by the B1 reader.
The access control unit searches for the appropriate key for the credential, based on the GO number and decrypts the TCOS credential's cryptogram. If the result matches the randomly generated number that was sent, this successfully completes the authentication check on the credential. Only then is the actual access profile checked, to see whether the access attempt is authorised. Within high-security areas, a further check through a PINcode is also possible.
primion offers comprehensive consultancy services for improving physical access security, through the deployment of tailored technologies.