The authentication module using existing infrastructure of smart cards in the personified system for information filtering

Since children learn work at the computer an early age, children's protection from inappropriate content becomes more urgent. User authentication is required to the personified system for information filtering. Today, almost every child has a ticket for public transport, which is a RFID-tag. That is why it was decided to use it as an identifier in authorization module. So this article is a detailed description of the system's authorization module which uses Mifare RFID-cards, as well as its advantages and disadvantages.