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can't install Applet successfully

JavaCard Applet Development Related Questions and Answers.
Jpita
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can't install Applet successfully

Post by Jpita » Tue Oct 25, 2016 2:00 am

I got stuck in a strange problem. I always failed to install my applet no matter in JCIDE simulator or in real card.
But I found that when I annotated this code line, it can run w/o any problem.

Code: Select all

HMACKey hmacKey = (HMACKey) KeyBuilder.buildKey(KeyBuilder.TYPE_HMAC,KeyBuilder.LENGTH_HMAC_SHA_1_BLOCK_64, false);

Does this line have any problem?

chico0609
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Re: can't install Applet successfully

Post by chico0609 » Tue Oct 25, 2016 2:59 am

It might be because either JCIDE simulator or your real card doesn't support the algorithm or key size.

popmun09
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Re: can't install Applet successfully

Post by popmun09 » Tue Oct 25, 2016 4:23 am

JCIDE doesn't support HMAC. You can use SHA1 instead.

Jpita
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Re: can't install Applet successfully

Post by Jpita » Tue Oct 25, 2016 10:00 pm

popmun09 wrote:JCIDE doesn't support HMAC. You can use SHA1 instead.


Can you show me a sample code of SHA1? If any example exists, I would be greatly appreciated.

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