java card programming

Basic architecture of Java card framework native cos First, let's review the basic architecture of native cos: Hal layer, communication layer, file system,Algorithm, Security module, personalized commands, application commands, and so on. Generally, one native cos only implements one application specification, and two or more application specifications are implemented simultaneously. Cos implements all a

Java programming Chapter 1 and Chapter 4 programming exercises and java programming exercises 3.1 public class test { public static void main(String[] args) { System.out.println("Enter a, b, c: "); Scanner input = new Scanner(System.in); double a = in

The APDU communication protocol is used to communicate with the ME mobile phone and comm for project needs. In the process of practice encountered some problems, first recorded as follows.The APDU protocol, which is the application layer protocol between the smart card and the reader, defines the structure format of the protocol in Iso7816-4[7]. The APDU data has two structures, the APDU structure used by the reader is command APDU, and the APDU struc

Java experiment 10-java database programming, 10-java Database Programming Purpose: 1) understand the composition and structure of JDBC 2) master the connection technology between Java programs and databases 3) Master how to use t

Transformation from jmigrating to OO programming with Java technology to Java Object-Oriented Programming Technology

JAVA Learning (5): Java Object-Oriented Programming basics, java Object-Oriented Programming Java Object-Oriented Programming Basics Object oriented

Java-based 18-bit ID card format verification algorithm-general Linux technology-Linux programming and kernel information. The following is a detailed description. A citizenship number is a combination of features and consists of a 17-digit ontology code and a digital verification code. the six-digit address code, eight-digit birth date code, three-digit sequence

JAVA Card Application Development (ix) APDU the Mac checksum in the script commandThe terminal receives 71 or 72 scripts from the background, parses the script instructions, and sends out the cards.The card executes the script instruction and first verifies that the Mac,mac validation passes before the script is actually executed. Because scripts typically update

, Grass flower 4, peach 4, Square 4])//(9,[grass Flower 9])// //4 with 1,3 belt 2,311,221,2111//map.size () ==4//2111//if (map.size () ==2)//ABS (Map.value[0].size ()-map.value[1].size ()) ==3// //4 with 1//ABS (Map.value[0].size ()-map.value[1].size ()) ==1// //, 3 with 2//if (map.size () ==3)//// //311,221 } Public Static voidgeneratehands (card[] pokes,card[

[] buf = new byte[1024];Len = In.read (BUF);System.out.println (New String (buf, 0, Len));OutputStream Os=s.getoutputstream ();Scanner scan=new Scanner (system.in);String S1=scan.next ();Os.write (S1.getbytes ());Os.write ("Received". GetBytes ());Os.close ();S.close ();Ss.close ();}}}After the client code has been modified:Package test2;Import java.io.IOException;Import Java.io.InputStream;Import Java.io.OutputStream;Import Java.net.Socket;Import java.net.UnknownHostException;Import Java.util.S

Java programming ideology-java I/O system and java programming ideology I/O system I. What is I/O? Io is essentially the movement of a single byte, while a stream is the carrier and method of byte movement, which keeps moving data to the target, what we need to do is read d

JAVA card application development is not hard ( 2 ) first JAVA Program creation InEclipseAfter the environment is configured, you can startJavaCard application development. First create a newJava card project. Follow the prompts to enter the project name "testproject", package name "testpackage", and App

In the previous blog post. JAVA Card Application Development creates the first applet. Introduced a project from scratch.So. After we built this project, there was only one application (an optional aid), assuming I wanted to have multiple applications for this project (with multiple aid options available). Just like after the card is initialized. I am able to cho

This article describes how to create a Java card project in the eclipse Environment, creating a new applet to run on a Java card.You must install the environment at the moment of setup: Download an eclipse first and then install JCOP. (JCOP download, you need to sign an agreement with NXP to get the installation files, of course, the Internet may find other versi