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 15 matches

by Usiger
Wed Oct 19, 2016 11:37 pm
Forum: Questions & Answers
Topic: java card- ECDSA signature
Replies: 3
Views: 8251

java card- ECDSA signature

I have a java card. And I found that this card supports ECC over GF(p) for keys up to 320 bits and SHA-256 as well. Does this mean that the card supports ECDSA signature mode such as ALG_ECDSA_SHA256? Thanks for any help.
by Usiger
Fri Aug 26, 2016 4:25 am
Forum: Shopping FAQ
Topic: Q with eJava Token
Replies: 7
Views: 12693

Re: Q with eJava Token

Hey guy.

ejavatoken can be used directly. It doesn't need any cards.

You can download and install your application into it, or any other operation.
by Usiger
Sun Jul 17, 2016 11:19 pm
Forum: Questions & Answers
Topic: Generate a key based on a byte array
Replies: 1
Views: 5648

Generate a key based on a byte array

There is a PIN in my applet, which is needed to encrypt by 3DES. I have a byte array "pw_ar" and I want to generate a key for 3DES algorithm based on this array. How can I do this? Thanks! Any reply is appreciated!

Note: my javacard version is JC2.1.1
by Usiger
Mon May 30, 2016 5:26 am
Forum: Algorithm School
Topic: ECDSA signature
Replies: 5
Views: 27782

Re: ECDSA signature

There is a step in the process of generating ECDSA signature - generate a random number, which causes different results.
by Usiger
Tue Mar 01, 2016 4:47 am
Forum: Communication
Topic: Get 6982 during DAP verification
Replies: 1
Views: 6852

Get 6982 during DAP verification

I want to load a cap file into the ISD. But when I added the DAP block linked to SSD in load command, it returns sw=0x6982.
Why do I get 6982? Is there something that I didn't pay attention to?
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