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Search found 16 matches

by whitexiao
Wed Apr 04, 2018 5:32 am
Forum: OpenEMV
Topic: I need a partner
Replies: 1
Views: 490

Re: I need a partner

why not use pyGlobalPlatform?
by whitexiao
Thu Mar 22, 2018 11:59 pm
Forum: Shopping FAQ
Topic: The A22CR supported algorithms?
Replies: 1
Views: 348

Re: The A22CR supported algorithms?

You can link to the store page of A22CR card to view the supported algorithms
by whitexiao
Mon Feb 19, 2018 7:32 am
Forum: Applets Development Guide
Topic: the difference between Util.arrayCopy and Util.arrayCopyNonAtomic
Replies: 3
Views: 823

the difference between Util.arrayCopy and Util.arrayCopyNonAtomic

What's the difference between Util.arrayCopy and Util.arrayCopyNonAtomic? can someone tell me?
by whitexiao
Sun Jan 28, 2018 10:36 pm
Forum: Applets Development Guide
Topic: Video Tutorial - How to use Virtual Card Reader?
Replies: 5
Views: 3269

Re: How to use Virtual Card Reader?

virtual smartcard reader is a powerful idea. It make debug applet more easier, and more importantly, it can use any PCSC tools to connect, that's great. Yeah, I feel this forum is very special, especially for javacard beginners like me. How do you feel? Yeah I have learned a lot about java card fro...
by whitexiao
Sun Jan 28, 2018 10:28 pm
Forum: Algorithm School
Topic: How to compute MAC
Replies: 13
Views: 3787

Re: How to compute MAC

Ok i have solved issue. ICV is what we got from external auth. 1) ICV is des ecb each time we going to use with first 8 byte session MAC. used as IV on next step. 2) now if data is less then 8 byte or 8 byte skip this. des cbc first 8 byte data with first 8 byte session mac key and IV = ICV result ...
by whitexiao
Sat Oct 08, 2016 9:49 pm
Forum: Questions & Answers
Topic: What's the command used to do in WalletDemoApplet?
Replies: 3
Views: 829

Re: What's the command used to do in WalletDemoApplet?

I found an applet called WalletDemoApplet in JCKit. On the code line L159, there is a command "00 84 00 00 08" in case statement. What's this command used to do? When will we use this command? Can anyone one help me? Thanks Get 8 random bytes as challange? For external authentication. Yes...
by whitexiao
Mon Oct 03, 2016 11:47 pm
Forum: Questions & Answers
Topic: What's the command used to do in WalletDemoApplet?
Replies: 3
Views: 829

What's the command used to do in WalletDemoApplet?

I found an applet called WalletDemoApplet in JCKit.
On the code line L159, there is a command "00 84 00 00 08" in case statement.
What's this command used to do? When will we use this command?
Can anyone one help me? Thanks
by whitexiao
Fri Dec 04, 2015 11:19 pm
Forum: OpenPGPApplet
Topic: Some APDU commands in OpenPGPApplet
Replies: 7
Views: 1818

Re: Some APDU commands in OpenPGPApplet

UNKNwYSHSA wrote:Yes.

If i send one mail to you, i encrypt the mail using the public key. you can decrypt the mail with the card (contains private key).


I know, but where I can find a tool to encrypt datas. Can you please give me a tool? :D
by whitexiao
Fri Dec 04, 2015 5:48 am
Forum: OpenPGPApplet
Topic: Some APDU commands in OpenPGPApplet
Replies: 7
Views: 1818

Re: Some APDU commands in OpenPGPApplet

Where's the data of command DECRYPT DATA from? You should understand the process flow: 1 The OpenPGP Applet generate dec_key pair, output the public key, save the private key in the card; 2 The client application encrypt data with the public key. 3 The he card decrypt the encrypted data using the p...
by whitexiao
Thu Dec 03, 2015 3:35 am
Forum: Applets Development Guide
Topic: Video Tutorial - How to use Virtual Card Reader?
Replies: 5
Views: 3269

Re: How to use Virtual Card Reader?

virtual smartcard reader is a powerful idea. It make debug applet more easier, and more importantly, it can use any PCSC tools to connect, that's great.
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