Schlage’s contactless smart card readers are the most secure readers in the industry. Instead of using open transmission protocols, Schlage smart card readers utilize high security data. Each message between the card and reader is digitally signed using Message Authentication Codes (MAC) to ensure the integrity of the data. In addition to increased security, smart cards offer faster transaction times and greater data storage capacity. What differentiates smart cards from proximity cards is that the information can be read from or written to a credential. Applications for smart cards include biometrics, logical access, cashless vending, and cafeteria services to name a few. Schlage smart card technology is also compatible with many of the other 13.56 MHz technologies offered in the market today.