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 44 matches

by deepanshsinghal
Fri May 11, 2018 11:12 am
Forum: Questions & Answers
Topic: Need SET STATUS
Replies: 1
Views: 5546

Need SET STATUS

I need some basic idea to implement SET STATUS command. From where can i start and Please refer any doc or anything to understand.

Thanks,
Deepansh
by deepanshsinghal
Sun Sep 17, 2017 3:08 am
Forum: Questions & Answers
Topic: Store 16 Byte Key
Replies: 2
Views: 9049

Re: Store 16 Byte Key

I read somewhere that we should never store the keys that are personalized, that need to be used at the time for ARQC and ARPC generation.
We should use something like "key objects" but I not getting how to implement that.
by deepanshsinghal
Sat Sep 16, 2017 9:14 am
Forum: Questions & Answers
Topic: Store 16 Byte Key
Replies: 2
Views: 9049

Store 16 Byte Key

Hi Everyone,

I want to store the "Key" through personalization. So, I can use that key while generating MAC. Can anyone tell how can i achieve that without using Byte array.


Regards,
Deepansh
by deepanshsinghal
Tue Aug 08, 2017 11:37 pm
Forum: Algorithm School
Topic: 3DES Encryption
Replies: 5
Views: 19838

Re: 3DES Encryption

https://javacardos.com/wiki/javacard-api-samples/des

check the above link, i hope it is useful for you for 3DES.
by deepanshsinghal
Fri Aug 04, 2017 8:21 am
Forum: Questions & Answers
Topic: Xor calculation
Replies: 1
Views: 9052

Xor calculation

Hi everyone, i am calculating XOR like this, public static byte[] xor(byte[] arqc, byte[] responseCode) { byte[] c = new byte[arqc.length]; for (short i = 0; i < arqc.length; i++) { c[i] = (byte) (arqc[i] ^ responseCode[i]); } return c; } is there any other way to calculate XOR because i think it mi...
by deepanshsinghal
Thu Aug 03, 2017 10:45 am
Forum: Questions & Answers
Topic: ARPC generation
Replies: 22
Views: 34970

Re: ARPC generation

I am getting 6F 00 when i am running ARPC request after some continuous transactions.
by deepanshsinghal
Thu Aug 03, 2017 10:44 am
Forum: Questions & Answers
Topic: 6F 00
Replies: 1
Views: 7633

6F 00

Hi,

I am getting 6F 00 when i am running ARPC request after some continuous transactions.

Thanks in advance.

Deepansh
by deepanshsinghal
Thu Jun 29, 2017 5:34 am
Forum: Solutions
Topic: ICC Master Key Derivation
Replies: 3
Views: 25684

Re: ICC Master Key Derivation

Described in EMV 4.x Book 2, Chapter "Master Key Derivation", there's 3 methods to Generate MK. And in the code of OpenEMV applet, the MK is a constant bytes, and it can be personalized before use it. Yes you are correct. I figured it out later... after gone through some documents. Still ...
by deepanshsinghal
Wed Jun 28, 2017 2:18 am
Forum: Questions & Answers
Topic: ARPC generation
Replies: 22
Views: 34970

Re: ARPC generation

UNKNwYSHSA wrote:


how to derive ICC master key in java card?
by deepanshsinghal
Wed Jun 28, 2017 2:17 am
Forum: Solutions
Topic: ICC Master Key Derivation
Replies: 3
Views: 25684

ICC Master Key Derivation

Does anyone how to derive ICC master key?

Thanks in Advance.

Regards,
Deepansh
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