Search found 150 matches

by kuafu
Sat Mar 16, 2019 8:19 am
Forum: Communication
Topic: How to get communicate with Omnikey 3121 Reader
Replies: 2
Views: 163

Re: How to get communicate with Omnikey 3121 Reader

Do you select your applet in card yet? if not ,please select applet first.
by kuafu
Sat Mar 16, 2019 5:40 am
Forum: User Guide
Topic: powerful scrollbar and template view
Replies: 0
Views: 4

powerful scrollbar and template view

viewtopic.php?f=31&t=1383

It's the easy way to find this topic .
by kuafu
Sat Mar 16, 2019 5:39 am
Forum: Questions & Answers
Topic: simulator not Support china Shangmi
Replies: 8
Views: 599

Re: simulator not Support china Shangmi

Hello: I use JCOS to develop SM2, sign and verify, and refer to import javacardx. shangmi. *; I don't know how to use any function, because I haven't found the signature interface of SM2, please provide an example about SM2 signature. thank you https://www.javacardos.com/javacardforum/viewtopic.php...
by kuafu
Tue Feb 26, 2019 7:19 am
Forum: Algorithm School
Topic: What is the DCLB protocol? Is the MP300 SC2 support contactless reader testing?
Replies: 3
Views: 240

Re: What is the DCLB protocol? Is the MP300 SC2 support contactless reader testing?

http://www.crossborder-technologies.com/node/93 DCLB is a firmware focused implementation of a high speed interface between CLF and SE. DCLB use existing pin lay out ( clock, IO, etc.). DCLB object code size is <5Kb, so can be easy implemented into an CLF or SE. Semiconductor vendors can license DC...
by kuafu
Mon Feb 25, 2019 7:06 am
Forum: Questions & Answers
Topic: How to Store a String data into the Java Card
Replies: 4
Views: 233

Re: How to Store a String data into the Java Card

Javacard has string class,that's true. But it didn't support by most cards in the market.
by kuafu
Sat Feb 23, 2019 11:20 pm
Forum: Questions & Answers
Topic: How to Store a String data into the Java Card
Replies: 4
Views: 233

Re: How to Store a String data into the Java Card

On PC public static void main(String[] arguments) { String sss = "string to byte stream"; byte[] byte_stream = sss.getBytes(); // send byte_stream to card // do the transmit procession // receive byte_steam from card ; String recovery = new String(byte_stream); System.out.println(recovery); } On car...
by kuafu
Sat Feb 23, 2019 12:18 pm
Forum: Questions & Answers
Topic: How to Store a String data into the Java Card
Replies: 4
Views: 233

Re: How to Store a String data into the Java Card

On PC,convert String to byte stream, and transitive to card. Store byte stream with a byte array object.

1,PC : String —-> byte stream. ——-> Card

2.Card: byte stream ——> PC

3. PC : byte stream ——>String
by kuafu
Fri Feb 22, 2019 5:26 am
Forum: Questions & Answers
Topic: What is the purpose of the maskgen tool in Java Card
Replies: 2
Views: 155

Re: What is the purpose of the maskgen tool in Java Card

uns Maskgen to generate a mask.c for java card os. It's about develop java card os.
https://docs.oracle.com/cd/E59935_01/gu ... 62CFA4B517
JavaCard OS : Disclaimer