Master-Token is a unique security concept used in the LEGIC access control system. Instead of protecting the administrator's rights in the system with uncertain passwords, the LEGIC system is associated with a special, physical proximity card. The owner of such a card called in the LEGIC system as Master-Token has control over the entire installation and is completely independent. The principle of the Master-Token system corresponds to the evolutionary family tree. Each Master-Token has its own genetic code, which is transferred to the transponder during initialization to work in the system and to the reader during its first configuration. In turn, Master-Token zones set the boundaries between different transponder technologies, different generations of transponders, and Master-Token sources. The concept of Master-Token zones ensures that Master-Token always meets high security standards for the appropriate transponder technology.
The advantage of the Master-Token card is the fact that it can be securely stored against unauthorized use, given to reliable people and removed at any time. Only Master-Token allows the authorization of readers and the creation of other identification media with individually defined administrator rights, known as Sub-Master-Token. The LEGIC access control system uses the latest advanced technologies with permanent data encryption, for example AES or 3DES with key diversification. So you can define your own key.
The control system based on the Master-Token concept has enabled the design of an open and flexible LEGIC technology platform, thanks to which it has become possible to combine access control applications from many suppliers into one secure system with the possibility of adding additional applications at any time in the event of such a need.
The LEGIC technology platform consists of the following basic elements integrated in readers and transponders:
- Transponder chip (ID source)
Passive chip with a maximum memory capacity of up to 4 KB, designed for integration with ISO cards, key rings, keys or as a virtual transponder for bank cards, credit cards or cell phones (NFC).
- Transponder reader module
Integrated circuit with radio part and microprocessor with extensive security functions for reading cards and transponders in applications including access control, time and attendance recording, cashless payments, season tickets, loyalty systems and many more.
- RF interface
Data sent via 13.56 MHz energy transmission for proximity communication up to 50 cm. LEGIC technology supports such proximity standards as, among others ISO 14443, ISO 15693, NFC, LEGIC RF and several standards from other manufacturers.
Application of the LEGIC system
The basic application of the LEGIC system is of course broadly understood access control to various places or data. However, one cannot forget that RFID technology and the LEGIC system can also be used in applications such as electronic payments , working time registration , e-tickets or Managed Print Services (MPS) , where the security of services must be at the highest level.
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