initial commit
This commit is contained in:
commit
7fa074027d
8
.idea/.gitignore
generated
vendored
Normal file
8
.idea/.gitignore
generated
vendored
Normal file
@ -0,0 +1,8 @@
|
||||
# Default ignored files
|
||||
/shelf/
|
||||
/workspace.xml
|
||||
# Datasource local storage ignored files
|
||||
/dataSources/
|
||||
/dataSources.local.xml
|
||||
# Editor-based HTTP Client requests
|
||||
/httpRequests/
|
||||
1
.idea/description.html
generated
Normal file
1
.idea/description.html
generated
Normal file
@ -0,0 +1 @@
|
||||
<html>Simple <b>Java</b> application that includes a class with <code>main()</code> method</html>
|
||||
6
.idea/encodings.xml
generated
Normal file
6
.idea/encodings.xml
generated
Normal file
@ -0,0 +1,6 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="Encoding">
|
||||
<file url="PROJECT" charset="UTF-8" />
|
||||
</component>
|
||||
</project>
|
||||
10
.idea/libraries/javassist_javassist_3_12_1_GA.xml
generated
Normal file
10
.idea/libraries/javassist_javassist_3_12_1_GA.xml
generated
Normal file
@ -0,0 +1,10 @@
|
||||
<component name="libraryTable">
|
||||
<library name="javassist:javassist:3.12.1.GA" type="repository">
|
||||
<properties maven-id="javassist:javassist:3.12.1.GA" />
|
||||
<CLASSES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/javassist/javassist/3.12.1.GA/javassist-3.12.1.GA.jar!/" />
|
||||
</CLASSES>
|
||||
<JAVADOC />
|
||||
<SOURCES />
|
||||
</library>
|
||||
</component>
|
||||
9
.idea/misc.xml
generated
Normal file
9
.idea/misc.xml
generated
Normal file
@ -0,0 +1,9 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectKey">
|
||||
<option name="state" value="project://e2804f05-5315-4fc6-a121-c522a6c26470" />
|
||||
</component>
|
||||
<component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="14" project-jdk-type="JavaSDK">
|
||||
<output url="file://$PROJECT_DIR$/out" />
|
||||
</component>
|
||||
</project>
|
||||
8
.idea/modules.xml
generated
Normal file
8
.idea/modules.xml
generated
Normal file
@ -0,0 +1,8 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectModuleManager">
|
||||
<modules>
|
||||
<module fileurl="file://$PROJECT_DIR$/ChaCha20.iml" filepath="$PROJECT_DIR$/ChaCha20.iml" />
|
||||
</modules>
|
||||
</component>
|
||||
</project>
|
||||
3
.idea/project-template.xml
generated
Normal file
3
.idea/project-template.xml
generated
Normal file
@ -0,0 +1,3 @@
|
||||
<template>
|
||||
<input-field default="com.company">IJ_BASE_PACKAGE</input-field>
|
||||
</template>
|
||||
124
.idea/uiDesigner.xml
generated
Normal file
124
.idea/uiDesigner.xml
generated
Normal file
@ -0,0 +1,124 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="Palette2">
|
||||
<group name="Swing">
|
||||
<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
|
||||
</item>
|
||||
<item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
|
||||
<default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
|
||||
<initial-values>
|
||||
<property name="text" value="Button" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="RadioButton" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="CheckBox" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="Label" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
|
||||
<preferred-size width="200" height="200" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
|
||||
<preferred-size width="200" height="200" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
|
||||
<preferred-size width="-1" height="20" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
|
||||
</item>
|
||||
</group>
|
||||
</component>
|
||||
</project>
|
||||
12
ChaCha20.iml
Normal file
12
ChaCha20.iml
Normal file
@ -0,0 +1,12 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<module type="JAVA_MODULE" version="4">
|
||||
<component name="NewModuleRootManager" inherit-compiler-output="true">
|
||||
<exclude-output />
|
||||
<content url="file://$MODULE_DIR$">
|
||||
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
|
||||
</content>
|
||||
<orderEntry type="inheritedJdk" />
|
||||
<orderEntry type="sourceFolder" forTests="false" />
|
||||
<orderEntry type="library" name="javassist:javassist:3.12.1.GA" level="project" />
|
||||
</component>
|
||||
</module>
|
||||
10
src/tech/loedige/AdditiveStreamCipher.java
Normal file
10
src/tech/loedige/AdditiveStreamCipher.java
Normal file
@ -0,0 +1,10 @@
|
||||
package tech.loedige;
|
||||
|
||||
public class AdditiveStreamCipher {
|
||||
|
||||
static public void encrypt(KeyStreamGenerator ksg, byte[] m) {
|
||||
for (int i = 0; i < m.length; ++i) {
|
||||
m[i] ^= ksg.getNextKeyStreamByte(m[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
12
src/tech/loedige/KeyStreamGenerator.java
Normal file
12
src/tech/loedige/KeyStreamGenerator.java
Normal file
@ -0,0 +1,12 @@
|
||||
package tech.loedige;
|
||||
|
||||
public abstract class KeyStreamGenerator {
|
||||
/**
|
||||
* Berechnung des nächsten Schlüsselstrombytes.
|
||||
* (Entspricht einem einmaligen Aufruf der
|
||||
* Update-Funktion s und der Extraktions-Funktion S.)
|
||||
*
|
||||
* @return Nächstes Schlüsselstrombyte
|
||||
*/
|
||||
abstract byte getNextKeyStreamByte(byte mByte);
|
||||
}
|
||||
63
src/tech/loedige/KeyStreamGenerator_AES_CTR.java
Normal file
63
src/tech/loedige/KeyStreamGenerator_AES_CTR.java
Normal file
@ -0,0 +1,63 @@
|
||||
package tech.loedige;
|
||||
|
||||
import javax.crypto.*;
|
||||
import javax.crypto.spec.SecretKeySpec;
|
||||
import java.security.InvalidKeyException;
|
||||
import java.security.NoSuchAlgorithmException;
|
||||
|
||||
public class KeyStreamGenerator_AES_CTR extends KeyStreamGenerator {
|
||||
|
||||
private Cipher cipher;
|
||||
private final byte[] state = new byte[16];
|
||||
private final byte[] ctr = new byte[16];
|
||||
private int currentByte=0;
|
||||
|
||||
public void initState(byte[] key, byte[] iv)
|
||||
throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException {
|
||||
if((iv.length!=16)||(key.length!=16)){
|
||||
throw new IllegalArgumentException("Invalid input length");
|
||||
}
|
||||
System.arraycopy(iv,0,ctr,0,16);
|
||||
|
||||
SecretKey secretKey = new SecretKeySpec(key,"AES");
|
||||
cipher = Cipher.getInstance("AES/ECB/NOPADDING");
|
||||
cipher.init(Cipher.ENCRYPT_MODE,secretKey);
|
||||
}
|
||||
|
||||
@Override
|
||||
byte getNextKeyStreamByte(byte mByte) {
|
||||
currentByte++;
|
||||
if(currentByte>=16){
|
||||
try {
|
||||
updateStateBlock();
|
||||
} catch (BadPaddingException | IllegalBlockSizeException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
currentByte=0;
|
||||
}
|
||||
return state[currentByte];
|
||||
}
|
||||
|
||||
private void updateStateBlock()
|
||||
throws BadPaddingException, IllegalBlockSizeException {
|
||||
incrementCtr();
|
||||
System.arraycopy(cipher.doFinal(ctr),0,state,0,16);
|
||||
}
|
||||
|
||||
/**
|
||||
* inkrementiert den counter
|
||||
*/
|
||||
private void incrementCtr(){
|
||||
for(int i = 0; i<16; i++){
|
||||
//falls das Byte die volle Länge erreicht hat findet ein Übertrag statt
|
||||
if(ctr[i]==0xff){
|
||||
ctr[i]=0x00;
|
||||
}
|
||||
else{
|
||||
//falls das Byte nicht die volle Länge hat endet die Inkrementierung
|
||||
ctr[i]++;
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
135
src/tech/loedige/KeyStreamGenerator_ChaCha20.java
Normal file
135
src/tech/loedige/KeyStreamGenerator_ChaCha20.java
Normal file
@ -0,0 +1,135 @@
|
||||
package tech.loedige;
|
||||
|
||||
public class KeyStreamGenerator_ChaCha20 extends SynchronousKeyStreamGenerator {
|
||||
// Zustand des Schlüsselstromgenerators
|
||||
// definiert durch (s0, s, c)
|
||||
private final int[] s0 = new int[16];
|
||||
private final int[] s = new int[16];
|
||||
private long c;
|
||||
/**
|
||||
* Initialisierung des Schlüsselstromgenerators (Funktion s_0)
|
||||
*
|
||||
* @param key Schlüssel zu Initialisierung des
|
||||
* Schlüsselstromgenerators (Bytearray der Länge 32)
|
||||
* @param nonce Nonce-Wert zu Initialisierung des
|
||||
* Schlüsselstromgenerators (Bytearray der Länge 12)
|
||||
*/
|
||||
public void initState(byte[] key, byte[] nonce) {
|
||||
initState(key, nonce, 0);
|
||||
}
|
||||
/**
|
||||
* Initialisierung des Schlüsselstromgenerators (Funktion s_0 mit zusätzlicher Initialisierung der
|
||||
* Zählervariablen in der ersten Komponente der Zustandsvariablen s0[12])
|
||||
* @param key Schlüssel zu Initialisierung des
|
||||
* Schlüsselstromgenerators (Bytearray der Länge 32)
|
||||
* @param nonce Nonce-Wert zu Initialisierung des
|
||||
* Schlüsselstromgenerators (Bytearray der Länge 12)
|
||||
* @param blockCtr Initialwert des Zählerwerts in s0[12]
|
||||
*/
|
||||
public void initState(byte[] key, byte[] nonce, int blockCtr) {
|
||||
if ((key.length != 32) || (nonce.length != 12)) {
|
||||
throw new IllegalArgumentException("Invalid length of key or nonce!");
|
||||
}
|
||||
s0[0] = 0x61707865;
|
||||
s0[1] = 0x3320646e;
|
||||
s0[2] = 0x79622d32;
|
||||
s0[3] = 0x6b206574;
|
||||
// Transformation der Schlüsselbytes in int-Werte
|
||||
// s0[4},...,s0[11] (Die Bytes werden in ’little-endian order’ eingelesen.)
|
||||
for (int i = 0; i < 8; ++i) {
|
||||
s0[i + 4] = (0xff & key[4 * i]);
|
||||
s0[i + 4] |= (0xff & key[4 * i + 1]) << 8;
|
||||
s0[i + 4] |= (0xff & key[4 * i + 2]) << 16;
|
||||
s0[i + 4] |= (0xff & key[4 * i + 3]) << 24;
|
||||
}
|
||||
s0[12] = blockCtr;
|
||||
|
||||
// Transformation der Nonce-Bytes in int-Werte
|
||||
// s0[13},s0[14],s0[15]
|
||||
for (int i = 0; i < 3; ++i) {
|
||||
s0[i + 13] = (0xff & nonce[4 * i]);
|
||||
s0[i + 13] |= (0xff & nonce[4 * i + 1]) << 8;
|
||||
s0[i + 13] |= (0xff & nonce[4 * i + 2]) << 16;
|
||||
s0[i + 13] |= (0xff & nonce[4 * i + 3]) << 24;
|
||||
}
|
||||
c = 0;
|
||||
|
||||
// Aufruf von updateStateBlocks() (entspricht der
|
||||
// Funktion s) wird durch Aufruf von
|
||||
// getNextKeyStreamByte() (entspricht der Funktion S)
|
||||
// angestossen.
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Berechnung des nächsten Schlüsselstrombytes.
|
||||
* (Entspricht eines einmaligen Aufrufs der Funktionen s
|
||||
* und S.)
|
||||
*
|
||||
* @return Nächstes Schlüsselstrombyte
|
||||
*/
|
||||
@Override
|
||||
public byte getNextKeyStreamByte() {
|
||||
if ((c & 0x3f) == 0) { // (c mod 64) == 0
|
||||
if (c == 0x4000000000L) { // 2^38
|
||||
throw new RuntimeException("Keystream exhausted!");
|
||||
}
|
||||
updateStateBlocks();
|
||||
}
|
||||
int stateWord = s[(int) ((c >> 2) & 0x0f)];
|
||||
byte keyStreamByte= (byte) (stateWord >> (int) 8 * (c & 0x03));
|
||||
++c;
|
||||
return keyStreamByte;
|
||||
}
|
||||
|
||||
/**
|
||||
* Update (Funktion s) der Block-Komponenten des Zustands100
|
||||
* (für (c mod 64) == 0)
|
||||
*/
|
||||
private void updateStateBlocks() {
|
||||
System.arraycopy(s0, 0, s, 0, 16);
|
||||
// 10-fache Anwendung der Inner-Block_Funktion f_{ib}
|
||||
for (int i = 0; i < 10; ++i) {
|
||||
quaterround(0, 4, 8, 12);
|
||||
quaterround(1, 5, 9, 13);
|
||||
quaterround(2, 6, 10, 14);
|
||||
quaterround(3, 7, 11, 15);
|
||||
quaterround(0, 5, 10, 15);
|
||||
quaterround(1, 6, 11, 12);
|
||||
quaterround(2, 7, 8, 13);
|
||||
quaterround(3, 4, 9, 14);
|
||||
}
|
||||
for (int i = 0; i < 16; ++i) {
|
||||
s[i] += s0[i];
|
||||
}
|
||||
s0[12] += 1; // Inkrementierung des Block-Zählers
|
||||
}
|
||||
|
||||
/**
|
||||
* Quater-Round-Funktion (Funktion q)
|
||||
*/
|
||||
private void quaterround(int i1, int i2, int i3, int i4) {
|
||||
int a = s[i1];
|
||||
int b = s[i2];
|
||||
int c = s[i3];
|
||||
int d = s[i4];
|
||||
a += b;
|
||||
d ^= a;
|
||||
d = (d << 16) | (d >>> 16);
|
||||
c += d;
|
||||
b ^= c;
|
||||
b = (b << 12) | (b >>> 20);
|
||||
a += b;
|
||||
d ^= a;
|
||||
d = (d << 8) | (d >>> 24);
|
||||
c += d;
|
||||
b ^= c;
|
||||
b = (b << 7) | (b >>> 25);
|
||||
s[i1] = a;
|
||||
s[i2] = b;
|
||||
s[i3] = c;
|
||||
s[i4] = d;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
33
src/tech/loedige/Main.java
Normal file
33
src/tech/loedige/Main.java
Normal file
@ -0,0 +1,33 @@
|
||||
package tech.loedige;
|
||||
|
||||
import th_owl.hs.datensicherheit.util.Dump;
|
||||
|
||||
import javax.crypto.Cipher;
|
||||
import javax.crypto.SecretKey;
|
||||
import javax.crypto.spec.IvParameterSpec;
|
||||
import javax.crypto.spec.SecretKeySpec;
|
||||
|
||||
public class Main {
|
||||
|
||||
public static void main(String[] args)
|
||||
throws Exception {
|
||||
byte[] key = Dump.hexString2byteArray("0102030405060708090A0B0C0D0E0F10");
|
||||
SecretKey secretKey = new SecretKeySpec(key, "AES");
|
||||
Cipher cipher= Cipher.getInstance("AES/CTR/NOPADDING");
|
||||
byte[] ctr = Dump.hexString2byteArray("FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFE");
|
||||
IvParameterSpec iv = new IvParameterSpec(ctr);
|
||||
cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
|
||||
byte[] m = new byte[35];
|
||||
byte[] c = cipher.doFinal(m);
|
||||
System.out.println("AES-CTR-Verschlüsselung mit "+
|
||||
"Cipher-Instanz vom Typ AES/CTR/NOPADDING:");
|
||||
System.out.println(Dump.dump(c));
|
||||
System.out.println();
|
||||
KeyStreamGenerator_AES_CTR ksg= new KeyStreamGenerator_AES_CTR();
|
||||
ksg.initState(key, ctr);
|
||||
AdditiveStreamCipher.encrypt(ksg, m);
|
||||
System.out.println("AES-CTR-Verschlüsselung mit "+ "KeyStreamGenerator_AES_CTR-Implementierung:");
|
||||
System.out.println(Dump.dump(m));
|
||||
System.out.println();
|
||||
}
|
||||
}
|
||||
35
src/tech/loedige/SynchronousKeyStreamGenerator.java
Normal file
35
src/tech/loedige/SynchronousKeyStreamGenerator.java
Normal file
@ -0,0 +1,35 @@
|
||||
package tech.loedige;
|
||||
|
||||
public abstract class SynchronousKeyStreamGenerator extends KeyStreamGenerator{
|
||||
|
||||
@Override
|
||||
final byte getNextKeyStreamByte(byte mByte){
|
||||
return getNextKeyStreamByte();
|
||||
}
|
||||
|
||||
/**
|
||||
* Berechnung des nächsten Schlüsselstrombytes.
|
||||
* (Entspricht eines einmaligen Aufrufs der
|
||||
* Update-Funktion s und der Extraktions-Funktion S.)
|
||||
*
|
||||
* @return Nächstes Schlüsselstrombyte15
|
||||
*/
|
||||
abstract byte getNextKeyStreamByte();
|
||||
/**
|
||||
* Generierung einer vorgegebenen Anzahl weiterer
|
||||
* Schlüsselstrombytes. (Entspricht einer entsprechenden
|
||||
* Anzahl von Aufrufen der Funktionen s und S.)
|
||||
*
|
||||
* @param noOfBytes Anzahl der zu generierenden
|
||||
* Schlüsselstrombytes
|
||||
* @return Die nächsten noOfBytes Bytes des
|
||||
* Schlüsselstroms
|
||||
*/
|
||||
public byte[] getNextKeyStreamBytes(int noOfBytes) {
|
||||
byte[] keyStream = new byte[noOfBytes];
|
||||
for (int i = 0; i < noOfBytes; ++i) {
|
||||
keyStream[i] = getNextKeyStreamByte();
|
||||
}
|
||||
return keyStream;
|
||||
}
|
||||
}
|
||||
215
src/th_owl/hs/datensicherheit/util/Dump.java
Normal file
215
src/th_owl/hs/datensicherheit/util/Dump.java
Normal file
@ -0,0 +1,215 @@
|
||||
/*
|
||||
* Stefan Heiss
|
||||
* TH Ostwestfalen-Lippe
|
||||
* FB Elektrotechnik und Technische Informatik
|
||||
* Quellcode zur Lehrveranstaltung Datensicherheit
|
||||
*/
|
||||
package th_owl.hs.datensicherheit.util;
|
||||
|
||||
import java.math.BigInteger;
|
||||
import java.util.Formatter;
|
||||
|
||||
public class Dump {
|
||||
|
||||
public final static String NL
|
||||
= System.getProperty("line.separator", "\r\n");
|
||||
|
||||
public static byte[] hexString2byteArray(
|
||||
String hexString) {
|
||||
// remove all whitespaces
|
||||
hexString = hexString.replaceAll("\\s", "");
|
||||
hexString = hexString.replaceAll(":", "");
|
||||
|
||||
if ((hexString.length() & 0x01) != 0) {
|
||||
throw new IllegalHexDumpException(
|
||||
"Odd number of nibbles!");
|
||||
}
|
||||
int byteArrayLength = hexString.length() >> 1;
|
||||
byte[] ba = new byte[byteArrayLength];
|
||||
for (int i = 0; i < byteArrayLength; ++i) {
|
||||
try {
|
||||
ba[i]
|
||||
= (byte) Integer.parseInt(
|
||||
hexString.substring(2 * i, 2 * i + 2), 16);
|
||||
} catch (NumberFormatException nfe) {
|
||||
throw new IllegalHexDumpException(
|
||||
"Invalid characters "
|
||||
+ hexString.substring(2 * i, 2 * i + 2)
|
||||
+ " at position " + 2 * i
|
||||
+ " (of streamlined string)!");
|
||||
}
|
||||
}
|
||||
return ba;
|
||||
}
|
||||
|
||||
// ------------------------------------------------------
|
||||
public static String dumpString(int i) {
|
||||
String retString = Integer.toString(i, 16);
|
||||
if ((retString.length() & 0x01) != 0) {
|
||||
retString = "0" + retString;
|
||||
}
|
||||
|
||||
return retString.toUpperCase();
|
||||
}
|
||||
|
||||
public static String dumpString(byte b) {
|
||||
return dumpString(b & 0xff);
|
||||
}
|
||||
|
||||
public static String dumpString(byte[] data) {
|
||||
return dumpString(data, 0, data.length);
|
||||
}
|
||||
|
||||
public static String dumpString(
|
||||
byte[] data, int offset, int length) {
|
||||
return dumpString(data, "", offset, length);
|
||||
}
|
||||
|
||||
public static String dumpString(
|
||||
byte[] data, String interBytesString,
|
||||
int offset, int length) {
|
||||
if (offset < 0 || length < 0) {
|
||||
throw new IllegalArgumentException(
|
||||
"Values for offset and parameters must be "
|
||||
+ "non-negative!");
|
||||
}
|
||||
if (data == null) {
|
||||
if (offset > 0 || length > 0) {
|
||||
throw new IllegalArgumentException(
|
||||
"Specified range not available in data!");
|
||||
}
|
||||
return "";
|
||||
}
|
||||
if ((offset + length) > data.length) {
|
||||
throw new IllegalArgumentException(
|
||||
"Specified range not available in data!");
|
||||
}
|
||||
|
||||
StringBuffer sb = new StringBuffer(length
|
||||
* (2 + interBytesString.length()));
|
||||
for (int i = offset; i < offset + length; ++i) {
|
||||
if (i != 0) {
|
||||
sb.append(interBytesString);
|
||||
}
|
||||
sb.append(dumpString(data[i]));
|
||||
}
|
||||
return new String(sb);
|
||||
}
|
||||
|
||||
// ------------------------------------------------------
|
||||
public static String dump(BigInteger b) {
|
||||
byte[] data = b.toByteArray();
|
||||
int l = data.length;
|
||||
if (l > 1 && data[0] == 0) {
|
||||
System.arraycopy(data, 1, data, 0, --l);
|
||||
}
|
||||
return dump(data, l);
|
||||
}
|
||||
|
||||
public static String dump(byte[] data) {
|
||||
return dump(data, data.length);
|
||||
}
|
||||
|
||||
public static String dump(byte[] data, int length) {
|
||||
StringBuffer sb
|
||||
= new StringBuffer(78 * ((length + 15) >> 4));
|
||||
char[] txt = new char[16];
|
||||
|
||||
int i = 0;
|
||||
for (; i < length;) {
|
||||
if ((i & 0x0f) == 0) {
|
||||
sb.append(alignRight(
|
||||
Integer.toHexString(i) + " ", 9, '0'));
|
||||
}
|
||||
|
||||
int temp = (0xff & data[i]);
|
||||
sb.append(dumpString(temp));
|
||||
sb.append(" ");
|
||||
|
||||
if (temp < 0x20 || temp > 0x7e) /// ???
|
||||
{
|
||||
txt[i++ & 0x0f] = '.';
|
||||
} // if( temp == 0x0a || temp == 0x09 || temp == 0x0d ) /// ???
|
||||
// txt[i++ & 0x0f] = (char)0;
|
||||
else {
|
||||
txt[i++ & 0x0f] = (char) temp;
|
||||
}
|
||||
|
||||
if ((i & 0x0f) == 0) {
|
||||
sb.append(" ");
|
||||
sb.append(txt, 0, 16);
|
||||
sb.append(NL);
|
||||
}
|
||||
}
|
||||
|
||||
if (i == 0) // empty data
|
||||
{
|
||||
sb.append("000000 ");
|
||||
}
|
||||
|
||||
if ((i = (i & 0x0f)) != 0) {
|
||||
sb.append(fillString(3 * (16 - i), ' ') + " ");
|
||||
sb.append(txt, 0, i);
|
||||
sb.append(NL);
|
||||
}
|
||||
|
||||
return new String(sb.toString().trim());
|
||||
}
|
||||
|
||||
/**
|
||||
* @return If str.length() < totalLength, a String of
|
||||
* length totalLength is returned. (The original String
|
||||
* extended by specified character from the left.)
|
||||
*/
|
||||
public static String alignRight(
|
||||
String str, int totalLength, char fillChar) {
|
||||
if (totalLength <= str.length()) {
|
||||
return str;
|
||||
}
|
||||
return fillString(totalLength - str.length(), fillChar)
|
||||
+ str;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return If str.length() < totalLength, a String of
|
||||
* length totalLength is returned. (The original String
|
||||
* extended by space characters from the left.)
|
||||
*/
|
||||
public static String alignRight(
|
||||
String str, int totalLength) {
|
||||
return alignRight(str, totalLength, ' ');
|
||||
}
|
||||
|
||||
/**
|
||||
* @return A String of repLength many repetitions of
|
||||
* specified character.
|
||||
*/
|
||||
public static String fillString(
|
||||
int spaceLength, char fillChar) {
|
||||
if (spaceLength < 0) {
|
||||
spaceLength = 0;
|
||||
}
|
||||
StringBuffer sb = new StringBuffer(spaceLength);
|
||||
for (int i = 0; i < spaceLength; ++i) {
|
||||
sb.append(fillChar);
|
||||
}
|
||||
return new String(sb);
|
||||
}
|
||||
|
||||
// ------------------------------------------------------
|
||||
public static String dumpIntArray(int[] array) {
|
||||
int nosPerLine = 4;
|
||||
StringBuffer sb = new StringBuffer();
|
||||
Formatter formatter = new Formatter(sb);
|
||||
for (int i = 0; i < array.length; ++i) {
|
||||
if (i != 0 && i % nosPerLine == 0) {
|
||||
sb.append(NL);
|
||||
}
|
||||
formatter.format(" %08x", array[i]);
|
||||
}
|
||||
sb.append(NL);
|
||||
return new String(sb);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -0,0 +1,15 @@
|
||||
/*
|
||||
* Stefan Heiss
|
||||
* TH Ostwestfalen-Lippe
|
||||
* FB Elektrotechnik und Technische Informatik
|
||||
* Quellcode zur Lehrveranstaltung Datensicherheit
|
||||
*/
|
||||
package th_owl.hs.datensicherheit.util;
|
||||
|
||||
public class IllegalHexDumpException
|
||||
extends IllegalArgumentException {
|
||||
|
||||
public IllegalHexDumpException(String s) {
|
||||
super(s);
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user