The Java Smartcard I/O API (javax.smartcardio, JSR 268) introduced in Java 1.6 is the bridge between PC/SC readers and the Java world. Java-based applications and applets may now communicate with smartcards in an interoperable and portable way. This makes it possible for web pages to access data stored in smartcards, or to invoke services running … Read more
NXP Semiconductors has recently warned their customers that they are running out of unique IDs for the Mifare Classic family. A detailed application note is also available to give precize answers to technical questions. Since the beginning, every card in the Mifare Classic family (1k, 4k, Mini) has a 32-bit identifier, said to be unique … Read more
NXP (formerly Philips SemiConductors) Mifare UltraLight chip (MF0ICU1) is a inexpensive contactless memory, widely used to make disposable transport tickets or other low-cost identification tags. As MF0ICU1 lacks of authentication or even password protection schemes, the reading application has to way to determine whether the serial number and the data come from a genuine card, … Read more
Both ISO 14443 and ISO 15693 mandates that the contactless/proximity cards or tags all have a ‘more-or-less unique’ physical identifier, that is required to identify the card or tag during the initial discovery process (and during the anti-collision loop when there’s more than one card in the field). This identifier is called UID in 14443-A … Read more