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 13 matches

by Squli
Sat Jan 19, 2019 5:21 am
Forum: Questions & Answers
Topic: J3H145 with SCP03
Replies: 2
Views: 17661

J3H145 with SCP03

I wonder if J3H145 card support SCP03? I have already have the sample, but now it supports SCP02.
Is there any method to switch to SCP03.
by Squli
Fri Feb 16, 2018 10:01 pm
Forum: Questions & Answers
Topic: Is there any way to find out how much memory size has my applet taken up?
Replies: 6
Views: 12253

Re: Is there any way to find out how much memory size has my applet taken up?

Tolice wrote:You can write another applet to get your applet size, as following steps:
- 1, Get card memory size named M1;
- 2, Load your applet to the card and get card memory size named M2;
- 3, Your applet used memory size named M, and M = M1 - M2



Thanks, But how can I get the card memory size?
by Squli
Fri Feb 16, 2018 9:57 pm
Forum: Questions & Answers
Topic: Is there any way to find out how much memory size has my applet taken up?
Replies: 6
Views: 12253

Re: Is there any way to find out how much memory size has my applet taken up?

Ponele wrote:COR ? COD? Or Persistent Memory?


I want to get the three types of memory size.
by Squli
Thu Feb 15, 2018 1:48 am
Forum: Questions & Answers
Topic: Is there any way to find out how much memory size has my applet taken up?
Replies: 6
Views: 12253

Is there any way to find out how much memory size has my applet taken up?

Is there any way to find out how much memory size has my applet taken up?
can anyone help me ?
by Squli
Thu Dec 22, 2016 5:00 am
Forum: Algorithm School
Topic: Basic question on digital signature
Replies: 4
Views: 10475

Re: Basic question on digital signature

Thanks for your help indeed. You save my day.
by Squli
Thu Dec 22, 2016 4:37 am
Forum: Algorithm School
Topic: Basic question on digital signature
Replies: 4
Views: 10475

Re: Basic question on digital signature

Thank you for your thorough answer. So in your opinion, among all the algorithms which algorithm is the securest?
by Squli
Wed Dec 21, 2016 11:07 pm
Forum: Algorithm School
Topic: Basic question on digital signature
Replies: 4
Views: 10475

Basic question on digital signature

It's me again. I still have a basic question that need your help. I learned that a digital signature is a mathematical scheme to guarantee message security . Does the Signature do an unique Sign for each transaction? Shall the data be encrypted and decrypted with the same Signature?
by Squli
Mon Dec 19, 2016 1:40 am
Forum: Algorithm School
Topic: Session key
Replies: 9
Views: 17221

Re: Session key

Are you trying to use the SCP02/03 and trying to find their session keys ? What kind of session keys are you trying to find ? You need to put more detail into your question as it's too abstract for us to know how to reply your question. Sorry, I was just getting started with implementing Encryption...
by Squli
Sat Dec 17, 2016 3:05 am
Forum: Algorithm School
Topic: Session key
Replies: 9
Views: 17221

Re: Session key

Can I create session key in the Java Card 2.2.2?
by Squli
Thu Dec 15, 2016 11:04 pm
Forum: Algorithm School
Topic: Session key
Replies: 9
Views: 17221

Session key

Symmetric algorithm use the same session key to encrypte and decrypte data. The session key is generated dynamically and uniquely for each time transaction. So, What exactly is session key ? pls help me regarding this.
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