[Muscle] Some issues with Aladdin eToken PRO 72K (Athena OS755)

Joao Pedro countzero at sapo.pt
Thu Mar 5 01:48:29 PST 2009



Hello,

The Athena OS755 operating system supports the JCAPI 2.2.2 Extended APDU by implementing javacardx.apdu. Should one need to modify the applet code to make use of this feature?

Best regards,
JP

Jonas Gulle <jonas.gulle at gmail.com> wrote: 

> Just a thought, doesn't it require an Extended APDU for 2048 bits? Is extended APDUs supported?
> 
> Best regards,
> Jonas
> 
> On Thu, Mar 5, 2009 at 9:26 AM, Hendrik Tews <tews at cs.ru.nl[1]> wrote:
>  
> 1. The card generates a 2048 bit RSA keypair, but when trying, for
> example, to encrypt data with the public key the card seems to throw
> and SW_UNSUPPORTED_FEATURE exception - this problem doesn't happen
> with 1024 bit keys.
>  With NXP JCOP cards I have the following experience: even if it
> is printed on the backside that they support RSA up to 2048 bits,
> their largest key size is 1952. For bigger key sizes either
> RSAPublicKey.setModulus throws CryptoException.ILLEGAL_VALUE or
> RSAPublicKey.setExponent throws CryptoException.ILLEGAL_VALUE.
> 
> I would try slightly smaller keys.
> 
> 2. The random number generator doesn't seem to work... (even though
> the card supports it).
>  No idea here.
> 
> Bye,
> 
> Hendrik
>     _______________________________________________
> Muscle mailing list
> Muscle at lists.musclecard.com[2]
> http://lists.drizzle.com/mailman/listinfo/muscle 



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[2] mailto:Muscle at lists.musclecard.com
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