[Pcsclite-muscle] Android Smart Card Emulator

William Roberts bill.c.roberts at gmail.com
Wed Mar 11 22:17:35 UTC 2015


On Wed, Mar 11, 2015 at 3:08 PM, William Roberts <bill.c.roberts at gmail.com>
wrote:

> Ok got it thanks.
>
> I was looking at the code for jcardsim and it looks like the crypto
> operations are backed by bouncycastle. It also appears that their
> are no Keystore interfaces. On actual smart cards, can an applet call
> PrivateKey.getEncoded() and actually retreive the raw key bytes?
>
> Looks like they cant call getEncoded() like in normal Java land, but
rather getExponent() and getModulus(), same thing. Routing all the crypto to
AKS would be nice.


According to:
http://www.win.tue.nl/pinpasjc/docs/apis/jc222/


> It would be nice to interface this stuff into AndroidKeyStore so private
> keys cannot be leaked.
>
>
>
> On Wed, Mar 11, 2015 at 12:11 AM, Frank Morgner <
> morgner at informatik.hu-berlin.de> wrote:
>
>> On Tuesday, March 10 at 05:52PM, William Roberts wrote:
>> > On Tue, Mar 10, 2015 at 5:19 PM, Frank Morgner <
>> > morgner at informatik.hu-berlin.de> wrote:
>> >
>> > > Hi!
>> > >
>> > > I created a simple App which uses Android’s HCE to fetch APDUs from a
>> > > contact-less reader and delegate them to Java Card Applets. The app
>> > > includes the Java Card simulation runtime of jCardSim [1] as well as
>> the
>> > > following Java Card applets:
>> > >
>> > > - Hello World applet [2]
>> > > - OpenPGP applet [3]
>> > > - OATH applet [4]
>> > > - ISO applet [5]
>> > >
>> > > With some more effort I think this could be quite interesting for a
>> > > variety of use cases. What do you think?
>> > >
>> >
>> > Def tons of use cases. Can you elaborate on jcardsim? Looks like its
>> just a
>> > jar file you can load applet byte code into.
>>
>> Yes and no. jCardSim essentially provides all the packages of a standard
>> Java Card as well as some simulation glue code (see
>> http://jcardsim.org/docs/quick-start-guide-simulator-api). You need to
>> have the applet compiled for the JRE (in my case Dalvik VM) to let the
>> applet 'use' the java card environment of jCardSim.
>>
>> > > Greets, Frank.
>> > >
>> > >
>> > > [0]
>> https://frankmorgner.github.io/vsmartcard/ACardEmulator/README.html
>> > > [1] http://www.jcardsim.org/
>> > > [2]
>> > >
>> https://github.com/licel/jcardsim/blob/master/src/main/java/com/licel/jcardsim/samples/HelloWorldApplet.java
>> > > [3] https://developers.yubico.com/ykneo-openpgp/
>> > > [4] https://developers.yubico.com/ykneo-oath/
>> > > [5] http://www.pwendland.net/IsoApplet/
>>
>> --
>> Frank Morgner
>>
>> Virtual Smart Card Architecture http://vsmartcard.sourceforge.net
>> OpenPACE                        http://openpace.sourceforge.net
>> IFD Handler for libnfc Devices  http://sourceforge.net/projects/ifdnfc
>>
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>>
>
>
>
> --
> Respectfully,
>
> William C Roberts
>
>


-- 
Respectfully,

William C Roberts
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