myjframe.java

Java Application for testing Encryption/Decryption of several algorithms: Ceaar, Vigenere, a custom

package javaappssa;

import java.util.Random;

public class MyJFrame extends javax.swing.JFrame {
    
    /** Creates new form MyJFrame */
    public MyJFrame() {
        initComponents();
    }

    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextAreaNormal = new javax.swing.JTextArea();
        jButton_cripteaza = new javax.swing.JButton();
        jBDecript = new javax.swing.JButton();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTextAreaCriptat = new javax.swing.JTextArea();
        statusLabel = new javax.swing.JLabel();
        jBCezarEnc = new javax.swing.JButton();
        jBCezarDecode = new javax.swing.JButton();
        jTextField_CheieCezar = new javax.swing.JTextField();
        LabelCheie = new javax.swing.JLabel();
        jBCifruVigenere = new javax.swing.JButton();
        jBDecodeVigenere = new javax.swing.JButton();
        LabelCheieVigenere = new javax.swing.JLabel();
        jTextFieldVigenereKeys = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("SSA - Cryptography");

        jLabel1.setText("Text Normal");

        jLabel2.setText("Text Criptat");

        jTextAreaNormal.setColumns(20);
        jTextAreaNormal.setLineWrap(true);
        jTextAreaNormal.setRows(5);
        jScrollPane1.setViewportView(jTextAreaNormal);

        jButton_cripteaza.setText("Encode");
        jButton_cripteaza.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton_cripteazaActionPerformed(evt);
            }
        });

        jBDecript.setText("Decode");
        jBDecript.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBDecriptActionPerformed(evt);
            }
        });

        jTextAreaCriptat.setColumns(20);
        jTextAreaCriptat.setLineWrap(true);
        jTextAreaCriptat.setRows(5);
        jScrollPane2.setViewportView(jTextAreaCriptat);

        statusLabel.setText("Status");

        jBCezarEnc.setText("Cezar Encode");
        jBCezarEnc.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBCezarEncActionPerformed(evt);
            }
        });

        jBCezarDecode.setText("Cezar Decode");
        jBCezarDecode.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBCezarDecodeActionPerformed(evt);
            }
        });

        jTextField_CheieCezar.setText("0");
        jTextField_CheieCezar.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyReleased(java.awt.event.KeyEvent evt) {
                jTextField_CheieCezarKeyReleased(evt);
            }
        });

        LabelCheie.setText("Cezar's Key");

        jBCifruVigenere.setText("Vigenere Encode");
        jBCifruVigenere.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBCifruVigenereActionPerformed(evt);
            }
        });

        jBDecodeVigenere.setText("Vigenere Decode");
        jBDecodeVigenere.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBDecodeVigenereActionPerformed(evt);
            }
        });

        LabelCheieVigenere.setText("Vigenere's Keys");

        jTextFieldVigenereKeys.setText("vector");
        jTextFieldVigenereKeys.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyReleased(java.awt.event.KeyEvent evt) {
                jTextFieldVigenereKeysKeyReleased(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addGap(70, 70, 70)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 202, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel1)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGap(170, 170, 170)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(LabelCheieVigenere)
                                    .addComponent(LabelCheie))
                                .addGap(52, 52, 52)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jTextFieldVigenereKeys, javax.swing.GroupLayout.PREFERRED_SIZE, 79, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(jTextField_CheieCezar, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE))))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                    .addComponent(jBCifruVigenere)
                    .addComponent(jButton_cripteaza)
                    .addComponent(jBCezarEnc))
                .addGap(98, 98, 98)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jBCezarDecode)
                    .addComponent(jBDecodeVigenere)
                    .addComponent(jLabel2)
                    .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 201, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jBDecript))
                .addGap(72, 72, 72))
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(276, 276, 276)
                .addComponent(statusLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 181, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(360, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jLabel1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jButton_cripteaza)
                        .addGap(23, 23, 23)
                        .addComponent(statusLabel)
                        .addGap(48, 48, 48)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jBCezarEnc)
                            .addComponent(jBCezarDecode)
                            .addComponent(LabelCheie)
                            .addComponent(jTextField_CheieCezar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 90, Short.MAX_VALUE)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jBCifruVigenere)
                            .addComponent(LabelCheieVigenere)
                            .addComponent(jTextFieldVigenereKeys, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jLabel2)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(jBDecript)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 198, Short.MAX_VALUE)
                        .addComponent(jBDecodeVigenere)))
                .addContainerGap())
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton_cripteazaActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton_cripteazaActionPerformed
        // TODO add your handling code here:
        statusLabel.setText("Encripting...");
        Text2Encode = jTextAreaNormal.getText();
        System.out.println("\n Text normal: \n"+Text2Encode);        
        Text2Decode = criptare_text(Text2Encode);
        jTextAreaCriptat.setText(Text2Decode);

    }//GEN-LAST:event_jButton_cripteazaActionPerformed

    private void jBDecriptActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBDecriptActionPerformed
        // TODO add your handling code here:
        statusLabel.setText("Decripting...");
        Text2Decode = jTextAreaCriptat.getText();
        System.out.println("\n Text criptat: \n"+Text2Decode);
        Text2Encode = decriptare_text(Text2Decode);
        jTextAreaNormal.setText(Text2Encode);
}//GEN-LAST:event_jBDecriptActionPerformed

private void jBCezarEncActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBCezarEncActionPerformed
        // TODO add your handling code here:
        statusLabel.setText("Cezar Mode Encripting...");
        Text2Encode = jTextAreaNormal.getText();
        System.out.println("\n Text normal (pentru Cezar Mode): \n"+Text2Encode);        
        Text2Decode = caesar_criptare_text(Text2Encode);
        jTextAreaCriptat.setText(Text2Decode);        
}//GEN-LAST:event_jBCezarEncActionPerformed

private void jBCezarDecodeActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBCezarDecodeActionPerformed
// TODO add your handling code here:
        statusLabel.setText("Cezar Mode Decripting...");
        Text2Decode = jTextAreaCriptat.getText();
        System.out.println("\n Text criptat (Cezar Mode): \n"+Text2Decode);
        Text2Encode = caesar_decriptare_text(Text2Decode);
        jTextAreaNormal.setText(Text2Encode);    
}//GEN-LAST:event_jBCezarDecodeActionPerformed

private void jTextField_CheieCezarKeyReleased(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_jTextField_CheieCezarKeyReleased
// TODO add your handling code here:
         this.cheie_cezar = Integer.parseInt(jTextField_CheieCezar.getText());
}//GEN-LAST:event_jTextField_CheieCezarKeyReleased

private void jBCifruVigenereActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBCifruVigenereActionPerformed
// TODO add your handling code here:
        statusLabel.setText("Vigenere Mode Encripting...");
        Text2Encode = jTextAreaNormal.getText();
        System.out.println("\n Text normal (pentru Vigenere Mode): \n"+Text2Encode);        
        Text2Decode = vigenere_criptare_text(Text2Encode);
        jTextAreaCriptat.setText(Text2Decode);  
}//GEN-LAST:event_jBCifruVigenereActionPerformed

private void jBDecodeVigenereActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jBDecodeVigenereActionPerformed
// TODO add your handling code here:
        statusLabel.setText("Vigenere Mode Decripting...");
        Text2Decode = jTextAreaCriptat.getText();
        System.out.println("\n Text criptat (Vigenere Mode): \n"+Text2Decode);
        Text2Encode = vigenere_decriptare_text(Text2Decode);
        jTextAreaNormal.setText(Text2Encode);  
}//GEN-LAST:event_jBDecodeVigenereActionPerformed

private void jTextFieldVigenereKeysKeyReleased(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_jTextFieldVigenereKeysKeyReleased
// TODO add your handling code here:
    cheie_vigenere = jTextFieldVigenereKeys.getText();
}//GEN-LAST:event_jTextFieldVigenereKeysKeyReleased
    
    private int inv_multipl(int a,int b){
        // u*a + v*b = cmmdc(a,b) = g
        // if cmmdc(a,b) =1 then ua = 1 mod b ; => u = a mod b; v = b mod a;
        int g=0,s1,s2,u1,u2,v1,v2,q,r,t,u,v;
        s1=a; s2=b; u1=1; u2=0; v1=0; v2=1;
        while (s2 !=0 ) {
        	q = s1 / s2;
        	r = s1 - q*s2;
        	s1 = s2; s2 = r;
        	t = u2; u2 = u1-q*u2; u1 = t;
        	t = v2; v2 = v1-q*v2; v1 = t;
        }
        g = s1; u = u1; v = v1;
        return u;   // u = a mod b;
    }

    private String criptare_text(String inputText){
        int lungimeInput;
        int t = 10;
        int i=0, j=0, k=0, oaia_neagra=0;    
        int codulLuiS = 12;
        int conflict=-1;
        int randomNumber;
        Random generator = new Random();
        permutareASCII = new int[t];
        int valASCII[] = new int[t];
        int caturi[] = new int[t];
        int resturi[] = new int[t]; 
        int randomIndex[] = new int[t] ;
        
        String result_cripted_text;      
        lungimeInput = inputText.length();        
        // System.out.println(" init sir permutare: ");
        for (i=0;i<t;i++){
            permutareASCII[i]=-1;  
            valASCII[i]=32;
            caturi[i]=0;
            resturi[i]=0;
            //System.out.print(" "+permutare[i]);
        }                
// generare index random
    for (i=0;i<t; i++) {
	randomNumber = generator.nextInt(t);
        randomIndex[i] = randomNumber;
        conflict = 0 ;
	for (j=0;j<i; j++) {                     
		if (randomIndex[j] == randomNumber) {   conflict = 1;   }
		else {	conflict = 0;	}
                if (conflict == 1) {
                    randomNumber = generator.nextInt(t);
                    j=0;
                }
                else randomIndex[i] = randomNumber;	
	}	
        //System.out.println(i + " / " + randomIndex[i]);
    }
    // corectare randIndex permutare (genereaza o singura dublura)
        for (j=0;j<t; j++) {
            for (k=j+1; k<t; k++) {
                if (randomIndex[j]==randomIndex[k]) {
                    randomIndex[j]=-20;
                    oaia_neagra = j;
                }
            }
        }
        for (i=0;i<t;i++){
            conflict=0;
            for (k=0; k<t; k++) {