Java Card simulator

jCardSim is a simulator for Java Card:

jCardSim is open-source library contains implementation of Java Card API, v.2.2.1: javacard.framework.* javacard.framework.security.* javacardx.crypto.*

EMV card info

Saush gives a fascinating tutorial on accessing the EMV data on a Mastercard (and possibly VISA).

Misc. STK source code

RuimTools has interesting tips about interfacing with smart cards from Java and useful STK source code.

RFID hacking live CD

OpenPCD.org has a live CD for hacking RFID tags (including MIFARE Classic and MIFARE DesFire).

MIFARE DESFire MF3ICD40 hacked

TheRegister has an article on the breaking of an older generation DESFire chip.

OPAL Released

The University of Limoges has released an open-source client implementation of the Global Platform specifications named OPAL. Eric Vetillard posted an interesting opinion on OPAL and the status quo of open-source software for smart cards.

MS PFX - How not to design a crypto standard

PFX from Microsoft is an outdated standard for storing an asymmetric private key and public certificate as an encrypted file. It is relevant today because 1) it is the precursor to the widely used PKCS#12 standard from RSALabs and 2) it is so horribly confusing it serves as a counter-example of how not to write a standard (at least, according to this article.)