RFID tag emulator

Abstract

This thesis describes touchless identification technology called „RFID“ in its passive low-frequency form, which is used most commonly. Hereby are described particular types, frequencies and choosen data transfer coding. Next there are shown similliar existing projects from which this solution was inspired. Also short description and reasons why open platform Arduino on which this project was developed was chosen. Thesis describes and implements three main approaches. First one is how to read tag send by RFID chip. Then desctiption of ability to send custom tag. Last but not least how to write a tag to rewritable chip, which closes the circle of theoretical unallowed copy and use of tag, which is not in ours posession. This thesis nature is focused on this technology security problematics and that is why there are shown examples, problems and possibilities to data copy.