Our Online Store have the new products: RFID antenna board. Currently it can work with JC10M24R and JCOP4 card chips.
Compared with normal cards, the antenna board module has a smaller size and fixed holes, which is easy to integrate in the IOT(Internet Of Things) project.

Search found 35 matches

by bigWhite
Thu Oct 12, 2017 3:01 am
Forum: Questions & Answers
Topic: I can't register JCIDE
Replies: 2
Views: 7202

Re: I can't register JCIDE

kuafu wrote:https://www.javacardos.com/tools/how-to-register-jcide.html
I found the answer.


I found the latest link is : https://www.javacardos.com/tools/jcide_register.html
by bigWhite
Wed Jan 25, 2017 4:58 am
Forum: Algorithm School
Topic: ECC Encryption and Decryption
Replies: 5
Views: 10877

Re: ECC Encryption and Decryption

There is already such a topic which you can find by simply use the search features on the top right hand corner if you actually tried to do a search. The search is pretty user friendly and extensive. Link: http://javacardos.com/javacardforum/viewtopic.php?f=31&t=738 Thank you friend. I already ...
by bigWhite
Mon Jan 23, 2017 9:38 pm
Forum: Algorithm School
Topic: ECC Encryption and Decryption
Replies: 5
Views: 10877

ECC Encryption and Decryption

In this book <Guide to Elliptic Curve Cryptography>, i found the ECC encryption and decryption algorithm.
How can i use it on JavaCard platform?
Thanks!
by bigWhite
Wed Apr 20, 2016 1:42 am
Forum: Questions & Answers
Topic: AES encryption
Replies: 11
Views: 23396

Re: AES encryption

You can write your code as follows: private void SendData(APDU apdu) { byte[] buffer = apdu.getBuffer(); Cipher aesCipher; AESKey aesKeyTrial; aesKeyTrial= (AESKey) KeyBuilder.buildKey(KeyBuilder.TYPE_AES_TRANSIENT_DESELECT, KeyBuilder.LENGTH_AES_128, false); byte[] aesKey; byte[] outBuffer; outBuff...
by bigWhite
Wed Apr 20, 2016 1:40 am
Forum: Questions & Answers
Topic: AES encryption
Replies: 11
Views: 23396

Re: AES encryption

Yeah, it's in my code that short len = (short) input.length. doFinal(input, ISO7816.OFFSET_CDATA, len, outBuffer, (short)0); Since I want the byte[] input to be encrypted. You can carefully look at the introduction of doFinal function, These parameters : "byte [] inBuff", "short inOf...
by bigWhite
Tue Apr 19, 2016 11:59 pm
Forum: Questions & Answers
Topic: AES encryption
Replies: 11
Views: 23396

Re: AES encryption

In the function

Code: Select all

public short doFinal(byte[] inBuff, short inOffset,
         short inLength, byte[] outBuff, short outOffset)
         throws CryptoException;


The third param 'inLength' is not the length of key , it's the length of you want to encrypted string.
by bigWhite
Tue Apr 19, 2016 4:38 am
Forum: Questions & Answers
Topic: AES encryption
Replies: 11
Views: 23396

Re: AES encryption

You can refer to the following code private void doAesCipher(APDU apdu, short len) { private Cipher aesEcbCipher; Key key; private byte[] aesKey; aesKey = new byte[32]; key.setKey(aesKey, (short)0); if (len <= 0 || len % 16 != 0) { ISOException.throwIt(ISO7816.SW_WRONG_LENGTH); } aesEcbCipher = Ciph...
by bigWhite
Tue Dec 15, 2015 5:32 am
Forum: FluffyPGPApplet
Topic: About generateAsymetricKey() function
Replies: 1
Views: 18409

About generateAsymetricKey() function

From the source code, generateAsymetricKey()function is to generate three types KEY pairs, and the types of key pairs are: signatureKey, confidentialityKey and authenticationKey. But, when I send APDU, only signatureKey (OFFSET_CDATA, is 0xB6) generated successfully, the others all returned 0x6A82. ...
by bigWhite
Wed Dec 02, 2015 8:43 am
Forum: PassportApplet
Topic: What are the javacard crypto APIs needed to be supported for the JMRTD applet ?
Replies: 2
Views: 19364

Re: What are the javacard crypto APIs needed to be supported for the JMRTD applet ?

From the code of this applet, it used a lot of algorithms , such as RSA, ECC, DES / 3 DES, RandomData and Signature .
by bigWhite
Sun Nov 29, 2015 11:50 pm
Forum: OpenPGPApplet
Topic: The APDU of RSA Signature in OpenPGPApplet
Replies: 1
Views: 18071

Re: The APDU of RSA Signature in OpenPGPApplet

It's very well. :lol: :lol: :lol:
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