Virtual Java Card Runtime Environment
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vjcre.pro

README.md

import pro.javacard.vre.*;

Focus on running existing code in a modern container, instead of emulating an old environment to the dumbest details. Fully open source!

vJCRE is a vritual Java Card Runtime Environment that allows to run Java code targeting the smart card platform inside a standard desktop Java virtual machine. Ideal for fast development, testing or experimentation.

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Features

  • Easy interfacing with any APDU-like interface:
  • CommandAPDU from javax.smartcardio
  • Generic byte[] exchange, like Android Host Card Emulation
  • JavaCard 2.2.2+, usage of Extended APDU encouraged
  • HostApduService proxy for Android
  • Includes all packages with essential interfaces and abstract classes up to JavaCard v3.0.4:
  • javacard.framework.*
  • javacard.security.*
  • javacardx.apdu.*
  • javacardx.crypto.*
  • Simple, thin and modular codebase to the finest extent possible.
  • Minimal one-liner pollution in javacard*.*. The only allowed import is from pro.javacard.vre.*;
  • No Javadoc or license for API specification. Go read the original API docs. (hint)
  • Implements necessary JCSystem and APDU, cryptography provided either by standard JCE or BouncyCastle.
  • Applet management interface, not unlike GlobalPlatform
  • No support for:
  • Transactions
  • RMI
  • Services
  • Logical channels
  • Future versions
  • More algorithms, including JavaCard 3.0.X features
  • Multiple independent VJCRE instances in a single VM
  • Saving and loading VM instances (real "virtual cards")
  • Works great with the rest of the open source smart card stack.
  • Made in Estonia

Usage

import pro.javacard.*;
        
VRE vre = VRE.getInstance();
AID aid = new AID(FakeEstEIDApplet.aid);
vre.load(FakeEstEIDApplet.class, aid); // Load the applet with the specified AID
vre.install(aid, default); // Make a default selected instance of the applet with same AID
TerminalFactory tf = TerminalFactory.getInstance("PC/SC", vre, new VJCREProvider());
CardTerminals terms = tf.terminals();
// Now use javax.smartcardio as you would do when talking to a real smart card

Get it now!

Version 0.1 will be released early March 2014 together with FakeEstEID Android version. Until that time feel free to look around in the repository.

Contact

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javacard.pro