我想在Java卡上阅读TLV编码证书（NXP JCOP J3D081，JCOP版本2.4.2，Java Card版本3.0.1 Classic）。
成功创建了cap文件，但是当我尝试在卡上安装它时，我收到了一个gpshell错误：
load（）返回0x80206A80（6A80：命令数据中的数据错误/错误值。）
我使用JCDK 3.0.3中的jar，这通常适用于像椭圆曲线等的东西。与TLV的东西有什么不同？
使用的applet代码（不使用BERTLV时安装正常）：
package org.thomas;
import javacard.framework.APDU;
import javacard.framework.Applet;
import javacard.framework.ISO7816;
import javacard.framework.ISOException;
import javacard.framework.Util;
import javacardx.framework.tlv.BERTLV;
import javacardx.framework.tlv.ConstructedBERTLV;
public class TlvApplet extends Applet {
private ConstructedBERTLV certificate;
byte[] certificateLength = new byte[2];
/**
* TlvApplet constructor
*
* @constructor
*/
private TlvApplet() {
// Register with the JCRE
register();
}
/**
* Installs applet
*
* @param bArray
* the array containing installation parameters
* @param bOffset
* the starting offset in bArray
* @param bLength
* the length in bytes of the parameter data in bArray
*/
public static void install(byte[] bArray, short bOffset, byte bLength) {
new TlvApplet();
}
public void process(APDU apdu) throws ISOException {
byte buffer[] = apdu.getBuffer();
short incomingLength = apdu.setIncomingAndReceive();
certificate = (ConstructedBERTLV) BERTLV.getInstance(buffer,
ISO7816.OFFSET_CDATA, incomingLength);
certificateLength[0] = (byte) (certificate.size() & 0xff);
certificateLength[1] = (byte) ((certificate.size() >> 8) & 0xff);
Util.arrayCopyNonAtomic(certificateLength, (short) 0, buffer,
ISO7816.OFFSET_CDATA, (short) 2);
}
}
我使用以下ant build.xml创建了cap文件：
<?xml version="1.0" encoding="UTF-8" ?>
<project default="convert" name="Create JC 3 applet" basedir=".">
<property environment="env" />
<!-- Include properties in the build.properties file -->
<property file="build.properties" />
<!-- Build specific properties -->
<property name="source.path" location="${basedir}/${source.folder}" />
<property name="jcdk.libs" location="${basedir}/${jcdk.basefolder}/${jcdk.subfolder.libs}" />
<property name="jcdk.apiexports" location="${basedir}/${jcdk.basefolder}/${jcdk.subfolder.apiexportfiles}" />
<property name="target.path.classes"
location="${basedir}/${target.basefolder}/${target.subfolder.classes}" />
<property name="target.path.cap"
location="${basedir}/${target.basefolder}/${target.subfolder.applet}" />
<!-- set the classpath for the tasks and the API, include all jar files -->
<path id="classpath" description="Sets the classpath to Java Card API and tools">
<fileset dir="${jcdk.libs}">
<include name="*.jar" />
</fileset>
</path>
<!-- set the export path to the Java Card export files -->
<path id="export" description="set the export file path">
<fileset dir="${jcdk.apiexports}">
<include name="**/*.exp" />
</fileset>
<pathelement path="${jcdk.apiexports}" />
<pathelement path="${target.path.classes}" />
</path>
<path id="capexport" description="set the export file for the cap path">
<fileset dir="${jcdk.apiexports}">
<include name="**/*.exp" />
</fileset>
<pathelement path="${jcdk.apiexports}" />
</path>
<!-- Definitions for tasks for Java Card tools -->
<taskdef name="apdu" classname="com.sun.javacard.ant.tasks.APDUToolTask" classpathref="classpath" />
<taskdef name="capgen" classname="com.sun.javacard.ant.tasks.CapgenTask" classpathref="classpath" />
<taskdef name="convert" classname="com.sun.javacard.ant.tasks.ConverterTask" classpathref="classpath" />
<taskdef name="verifyexport" classname="com.sun.javacard.ant.tasks.VerifyExpTask" classpathref="classpath" />
<taskdef name="verifycap" classname="com.sun.javacard.ant.tasks.VerifyCapTask" classpathref="classpath" />
<taskdef name="verifyrevision" classname="com.sun.javacard.ant.tasks.VerifyRevTask" classpathref="classpath" />
<typedef name="appletnameaid" classname="com.sun.javacard.ant.types.AppletNameAID" classpathref="classpath" />
<typedef name="jcainputfile" classname="com.sun.javacard.ant.types.JCAInputFile" classpathref="classpath" />
<typedef name="scriptgen" classname="com.sun.javacard.ant.tasks.ScriptgenTask" classpathref="classpath" />
<target name="init">
<mkdir dir="${target.path.classes}" />
</target>
<target name="clean">
<delete dir="${target.path.classes}" />
</target>
<target name="compile" depends="init" description="Compile source code to class files">
<javac debug="${javac.debug}"
optimize="${javac.optimize}"
srcdir="${source.path}"
destdir="${target.path.classes}"
source="${javac.version.source}"
target="${javac.version.target}">
<classpath refid="classpath" />
</javac>
</target>
<target name="convert" depends="compile" description="Convert class files to cap files">
<convert packagename="${package.name}"
packageaid="${package.aid}"
majorminorversion="${applet.version}"
classdir="${target.path.classes}"
outputdirectory="${target.path.cap}"
jca="${cap.creation.jca}"
exp="${cap.creation.exp}"
cap="true"
debug="${cap.creation.debug}" verbose="${cap.creation.verbose}"
noverify="${cap.creation.noverify}">
<appletnameaid aid="${applet.aid}" appletname="${applet.name}" />
<exportpath refid="capexport" />
<classpath refid="classpath" />
</convert>
</target>
<target name="all" depends="clean, convert" />
</project>
使用的build.properties：
# Source folder
source.folder = src/org/thomas
# Java Card Development Kit folders
jcdk.basefolder = lib/javaCardKit303
jcdk.subfolder.apiexportfiles = api_export_files
jcdk.subfolder.libs = lib
# Target folders (will be created, no need to adapt)
target.basefolder = target
target.subfolder.classes = classes
target.subfolder.applet = applet
# Applet properties
package.aid = 0x41:0x41:0x41:0x41:0x41:0x41:0x41:0x41:0x41:0x42
package.name = org.thomas
applet.aid = 0x41:0x41:0x41:0x41:0x41:0x41:0x41:0x41:0x41:0x42:0x42
applet.name = TlvApplet
applet.version = 1.0
# Java class compiler options
javac.debug = no
javac.optimize = no
javac.version.source = 1.5
javac.version.target = 1.5
# CAP file creation options
cap.creation.verbose = false
cap.creation.noverify = false
cap.creation.debug = false
cap.creation.jca = false
cap.creation.exp = false
因此怀疑要使用api_connected.jar编译上限，但是从工具包中删除文件，并没有改变任何内容。
任何帮助将不胜感激。在此先感谢，托马斯
答案 0 :(得分：2)
该卡根本不支持java卡API的TLV类。 JC API只是一个建议，但卡制造商可能会选择实施它的一个子集。
一般来说，javacardx中的任何内容都是可选的（因此最后是x）。但必须实现javacard中的API方法。即使对于javacard包和类，也不是所有功能都可以在运行时使用。例如，加密算法可能不存在。