aes ctr

AESCTR/.gitignore

+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file

AESCTR/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml

AESCTR/.idea/libraries/byteLib.xml

+<component name="libraryTable">
+  <library name="byteLib">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/../byteLib.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$PROJECT_DIR$/../byteLib.jar!/doc" />
+    </JAVADOC>
+    <SOURCES />
+  </library>
+</component>
\ No newline at end of file

AESCTR/.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file

AESCTR/.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/AESCTR.iml" filepath="$PROJECT_DIR$/AESCTR.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

AESCTR/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

AESCTR/AESCTR.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="byteLib" level="project" />
+  </component>
+</module>
\ No newline at end of file

AESCTR/src/AES.java

+import it.uniupo.byteLib.Tools;
+
+import javax.crypto.*;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+
+public class AES {
+    public byte[] ctr(byte[] pt) {
+        Cipher c;
+        try {
+            c = Cipher.getInstance("AES/CTR/NoPadding");
+        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
+            throw new RuntimeException(e);
+        }
+        KeyGenerator keyGenerator;
+        try {
+            keyGenerator = KeyGenerator.getInstance("AES");
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException(e);
+        }
+        var key = keyGenerator.generateKey();
+        Tools.writeByteFlow(key.getEncoded(), "key");
+        try {
+            c.init(Cipher.ENCRYPT_MODE, key);
+        } catch (InvalidKeyException e) {
+            throw new RuntimeException(e);
+        }
+        try {
+            c.doFinal(pt);
+        } catch (IllegalBlockSizeException | BadPaddingException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}