myjframe.java

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

                if (randomIndex[k]==i) conflict+=1; // e ok, randInd buni
            }
            if (conflict == 0) {
                randomIndex[oaia_neagra] = i;
                //System.out.println("ce lipseste: "+i+" dublura e "+oaia_neagra);
            } 
        }

        for (i=0;i<t;i++){
                System.out.println(i + " //// " + randomIndex[i]); 
         }
    // end corectare    
        //end generare
        System.out.println();
        i=0;
        while(i<t){  
            if (i < lungimeInput)
                valASCII[i]= (int)inputText.charAt(i);   
            caturi[i]= valASCII[i] / 96;    
            resturi[i]= valASCII[i] % 96;
            permutareASCII[randomIndex[i]] = valASCII[i];
            System.out.print(" "+permutareASCII[randomIndex[i]]); //de fapt printez valASCII[i]
            i++;
        }       
        System.out.println("\n Permutarea: ");
        for (i=0;i<t;i++){
            System.out.print(" "+permutareASCII[i]);    // aceasta este permutarea adevarata!!
            permutareASCII[i] = permutareASCII[i] - 32; // aducem in zona 0..95
        }
        System.out.println("\n Valorile in intevalul 0-95: ");
        for (i=0;i<t;i++){
            System.out.print(" "+permutareASCII[i]);    // aceasta este permutarea adevarata!!
            // System.out.print(" "+resturi[i]);    // caturile
            // System.out.print(" "+resturi[i]);    // resturile
            
        }        
        System.out.println("\n INPUT: "+inputText+ "\t Lungime: "+lungimeInput);
        int suma = 0; i=0;
        while (i<=lungimeInput) {   // parcurg textul
        // generare cheie
            j=0;
            while (j<t) { //t-1, j=0, j++
                suma = suma + ( (valASCII[j]-32) * caturi[j] ) ; // a*q 
                j++;
                 
            }
        i++;    
        }
        // suma = suma + (codulLuiS * codulLuiS); // lasam pe S deoparte
        cheie = suma % 96 ; // suma mod 96
        // de facut restul pt cheie
        System.out.println("\n cheie: "+cheie);
        // end generare
        result_cripted_text = "";
        char litera;
        for (i=0;i<t;i++){
            litera = (char)((permutareASCII[i] + cheie * resturi[i]) % 96 + 32); // (a + c*r)%96+32
            result_cripted_text = result_cripted_text + litera;
                    
        }
        //result_cripted_text = inputText+ "\t 123"+"\t456";
        //System.out.println("\n Text intermediar: \n"+result_cripted_text);
        return result_cripted_text;
    }

    private String decriptare_text(String inputCryptedText){
        String result_decripted_text;
        result_decripted_text  = " decriptat: ";
        
        int lungimeInputCrypted;
        int t = 10;
        int i=0, j=0, k=0;    
        int codulLuiS = 12;

        permutareASCII = new int[t];
        int valASCII[] = new int[t];
        int randomIndex[] = new int[t];
   
        lungimeInputCrypted = inputCryptedText.length();   
        if (t>lungimeInputCrypted)
                t=lungimeInputCrypted;
        for (i=0;i<t;i++){
            permutareASCII[i]=-1;  
            valASCII[i]=32;

        }  
        System.out.println(" to be processed...");
        i=0;
        while(i<t){  
            if (i < lungimeInputCrypted) {
                valASCII[i]= (int)inputCryptedText.charAt(i);   
                permutareASCII[i] = valASCII[i];
                System.out.print(" "+valASCII[i]); //de fapt printez valASCII[i]
            }
            i++;
        }  
        for (i=0;i<t;i++){
            System.out.print(" "+permutareASCII[i]);    // aceasta este permutarea adevarata!!
            permutareASCII[i] = permutareASCII[i] - 32; // aducem in zona 0..95
        }
        System.out.println("\n Valorile in intevalul 0-95: ");
        for (i=0;i<t;i++){
            System.out.print(" . "+permutareASCII[i]);    // aceasta este permutarea adevarata!!
        }        
        System.out.println("\n INPUT: "+inputCryptedText+ "\t Lungime: "+lungimeInputCrypted);
        System.out.println("\n Cheia: "+cheie);
        char litera;
        for (i=0;i<t;i++){
            permutareASCII[i] = (permutareASCII[i] * inv_multipl(permutareASCII[i],96) ) % 96 ; // (c*r * (r^(-1)) ) % 96
            
            litera = (char)(permutareASCII[i] - (cheie * permutareASCII[i]) % 96 + 32);
            //litera = ;
            result_decripted_text = result_decripted_text + litera;                    
        }        
        System.out.println("\n OUTPUT: "+result_decripted_text);
        return result_decripted_text;
    }

    private String caesar_criptare_text(String inputText){
        String result_cripted_text;          
        int lungimeInput;
        int t = 10;
        int i=0;       
        lungimeInput = inputText.length();    
        t = lungimeInput;
        permutareASCII = new int[t];
        int valASCII[] = new int[t];        
        for (i=0;i<t;i++){
            permutareASCII[i]=-1;  
            valASCII[i]=0;
        }                
        i=0;
        while(i<t){  
            valASCII[i]= (int)inputText.toLowerCase().charAt(i);
            permutareASCII[i] = valASCII[i] - 97;   // aducem in zona 0..25
            System.out.print(" "+permutareASCII[i]); //de fapt printez valASCII[i]
            i++;
        }       
        System.out.println("\n alfabetul redus: ");
        for (i=0;i<t;i++){
            if (permutareASCII[i] + cheie_cezar > 25)
                permutareASCII[i] = (permutareASCII[i] + cheie_cezar)%26;
            else
                permutareASCII[i] = permutareASCII[i] + cheie_cezar; 
            System.out.print(" "+permutareASCII[i]); 
        }
        result_cripted_text = "";
        char litera;
        for (i=0;i<t;i++){
            litera = (char)(permutareASCII[i] + 97); // (a + c*r)%96+32
            result_cripted_text = result_cripted_text + litera;                    
        }
        return result_cripted_text;
    }
    
    private String caesar_decriptare_text(String inputCryptedText){
        String result_decripted_text;       
        int lungimeInput;
        int t = 10;
        int i=0;           
        lungimeInput = inputCryptedText.length();    
        t = lungimeInput;
        permutareASCII = new int[t];
        int valASCII[] = new int[t];        
        for (i=0;i<t;i++){
            permutareASCII[i]=-1;  
            valASCII[i]=0;
        }                
        i=0;
        while(i<t){  
            valASCII[i]= (int)inputCryptedText.charAt(i);                    
            permutareASCII[i] = valASCII[i] - 97;   // aducem in zona 0..25
            System.out.print(" "+permutareASCII[i]); //de fapt printez valASCII[i]-97
            i++;
        }       
        System.out.println("\n alfabetul redus: ");
        for (i=0;i<t;i++){
            if (permutareASCII[i] - cheie_cezar < 0)
                permutareASCII[i] = permutareASCII[i] - cheie_cezar + 26;
            else          
                permutareASCII[i] = permutareASCII[i] - cheie_cezar; 
            System.out.print(" "+permutareASCII[i]); 
        }
        result_decripted_text = "";
        char litera;
        for (i=0;i<t;i++){
            litera = (char)(permutareASCII[i] + 97); 
            result_decripted_text = result_decripted_text + litera;                    
        }
        return result_decripted_text;
    }
    
    private String vigenere_criptare_text(String inputText){
        String result_cripted_text;          
        int lungimeInput;
        int t = 10;
        int i=0, j=0;           
        int key_Vigenere;
        lungimeInput = inputText.length();    
        t = lungimeInput;
        permutareASCII = new int[t];
        int valASCII[] = new int[t];   
        // get cheie_vigenere array
        //int cheie_vigenere[] = {21, 4, 2, 19, 14, 17};
        //cheie_vigenere = "vector";
        System.out.println(" lungime vigenere: "+ cheie_vigenere.length() );        
        for (i=0;i<t;i++){
            permutareASCII[i]=-1;  
            valASCII[i]=0;
        }                
        i=0;
        j=0;
        while(i<t){  
            valASCII[i]= (int)inputText.toLowerCase().charAt(i);
            System.out.print(" "+(valASCII[i]-97));
            if (j < cheie_vigenere.length()){
                    key_Vigenere = ((int)cheie_vigenere.charAt(j))%97;
                    valASCII[i] = (valASCII[i]-97 + key_Vigenere)%26;
                    while (valASCII[i]<0){
                        valASCII[i]+=26;
                    }                        
            }
            else {
                    j=0;
                    key_Vigenere = ((int)cheie_vigenere.charAt(j))%97;
                    valASCII[i] = (valASCII[i]-97 + key_Vigenere)%26;
                    while (valASCII[i]<0){
                        valASCII[i]+=26;
                    }
            }

            j++;
            i++;
        }      
        System.out.println("\n vigenere cheie: ");
        for (i=0;i<cheie_vigenere.length();i++){
            //System.out.print(" "+cheie_vigenere[i]);
            System.out.print(" "+(int)cheie_vigenere.charAt(i)%97);
        }
        System.out.println(" vigenere rezultat: ");
        result_cripted_text = "";
        char litera;
        for (i=0;i<t;i++){
            System.out.print(" "+(valASCII[i]));
            litera = (char)(valASCII[i]+97);
            result_cripted_text = result_cripted_text + litera;                    
        }
        return result_cripted_text;
    }
    
    private String vigenere_decriptare_text(String inputCryptedText){
        String result_decripted_text;         
        int lungimeInput;
        int t = 10;
        int i=0, j=0;           
        int key_Vigenere;
        lungimeInput = inputCryptedText.length();    
        t = lungimeInput;
        permutareASCII = new int[t];
        int valASCII[] = new int[t];   
        // get cheie_vigenere array
        //int cheie_vigenere[] = {21, 4, 2, 19, 14, 17};
        //cheie_vigenere = "vector";
        System.out.println(" lungime vigenere: "+ cheie_vigenere.length() );        
        for (i=0;i<t;i++){
            permutareASCII[i]=-1;  
            valASCII[i]=0;
        }                
        i=0;
        j=0;
        while(i<t){  
            valASCII[i]= (int)inputCryptedText.toLowerCase().charAt(i);
            System.out.print(" "+(valASCII[i]-97));
            if (j < cheie_vigenere.length()){
                    key_Vigenere = ((int)cheie_vigenere.charAt(j))%97;
                    valASCII[i] = (valASCII[i]-97 - key_Vigenere)%26;
                    while (valASCII[i]<0){
                        valASCII[i]+=26;
                    }                        
            }
            else {
                    j=0;
                    key_Vigenere = ((int)cheie_vigenere.charAt(j))%97;
                    valASCII[i] = (valASCII[i]-97 - key_Vigenere)%26;
                    while (valASCII[i]<0){
                        valASCII[i]+=26;
                    }
            }

            j++;
            i++;
        }      
        System.out.println("\n vigenere cheie: ");
        for (i=0;i<cheie_vigenere.length();i++){
            System.out.print(" "+(int)cheie_vigenere.charAt(i)%97);
        }
        System.out.println("\n vigenere rezultat: ");
        result_decripted_text = "";
        char litera;
        for (i=0;i<t;i++){
            System.out.print(" "+(valASCII[i]));
            litera = (char)(valASCII[i]+97);
            result_decripted_text = result_decripted_text + litera;                    
        }
        return result_decripted_text;
    }
    
    private String Text2Encode;
    private String Text2Decode;
    private int[] permutareASCII;
    private int cheie = 0;
    private int cheie_cezar = 0;
    private String cheie_vigenere = "vector";
    private int block;
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel LabelCheie;
    private javax.swing.JLabel LabelCheieVigenere;
    private javax.swing.JButton jBCezarDecode;
    private javax.swing.JButton jBCezarEnc;
    private javax.swing.JButton jBCifruVigenere;
    private javax.swing.JButton jBDecodeVigenere;
    private javax.swing.JButton jBDecript;
    private javax.swing.JButton jButton_cripteaza;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JTextArea jTextAreaCriptat;
    private javax.swing.JTextArea jTextAreaNormal;
    private javax.swing.JTextField jTextFieldVigenereKeys;
    private javax.swing.JTextField jTextField_CheieCezar;
    private javax.swing.JLabel statusLabel;
    // End of variables declaration//GEN-END:variables
    
}