Software Development Kit. A set of development utilities meant for writing software applications, usually associated with specific environments.
Data Encryption Standard. The most widely used secret key encryption algorithm (orginally developed by IBM in 1977). A strengthened version of DES called triple DES (or 3DES) is commonly used in bank cards.
The process whereby a card, terminal or person proves who they are. A fundamental part of many cryptography systems.
This trademark of NXP (formerly Philips Semiconductors) is the generic brand name of their PICC products. Billions of Mifare Classic cards have been deployed since the 90's. This is a family of wired-logic PICCs were data storage is divided into sectors and protected by a proprietary1 stream cipher called CRYPTO1. Every sector is protected by 2 access keys called 'key A' and 'key B'. NXP also offers another family of wired-logic PICCs called Mifare UltraLight (adopted by NFC Forum as Type 2 NFC Tags). Mifare SmartMX (and former Pro/ProX) is a family of microprocessor-based PICCs that may run virtually any smartcard application, typically on top a JavaCard operating system. Mifare Desfire is a particular microprocessor-based PICC that runs a single general-purpose application.