Add integration of Javacard SDKs

build.xml

@@ -4,13 +4,19 @@
     JavaCard Applet for the Kyber Post-Quantum-Cryptography Algorithm
   </description>
 
-  <property name="JCSDK" value="C:\Program Files (x86)\Oracle\Java Card Development Kit 3.0.5u4" />
+  <property name="JCSDK" value="./oracle_javacard_sdks/jc305u4_kit" />
 
   <target name="clean">
     <delete dir="build" />
   </target>
 
-  <target name="setup">
+  <target name="check.sdk">
+    <condition property="jcsdk.exists">
+      <available file="${JCSDK}" type="dir" />
+    </condition>
+  </target>
+
+  <target name="setup" depends="check.sdk" if="jcsdk.exists">
     <mkdir dir="tools"/>
     <get src="https://github.com/martinpaljak/ant-javacard/releases/download/v24.11.19/ant-javacard.jar" dest="tools" skipexisting="true"/>
     <get src="https://github.com/martinpaljak/GlobalPlatformPro/releases/download/v24.10.15/gp.jar" dest="tools" skipexisting="true"/>
@@ -20,7 +26,7 @@
     <!-- ant-javacard task from javacard.pro -->
     <taskdef name="javacard" classname="pro.javacard.ant.JavaCard" classpath="tools/ant-javacard.jar" />
     <javacard jckit="${JCSDK}">
-      <cap output="build/cyber.cap" aid="A000000648" sources="src" targetsdk="java_card_kit-2_2_1">
+      <cap output="build/cyber.cap" aid="A000000648" sources="src" targetsdk="./oracle_javacard_sdks/jc221_kit">
         <applet class="org.hacdc.cyber.Cyber" aid="A0000006482F0002" />
       </cap>
     </javacard>