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 <[email protected]> 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 > [email protected] > http://lists.drizzle.com/mailman/listinfo/muscle >
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