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ATBASH.java
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ATBASH.java
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package Cipher;
public class ATBASH {
private String encodeDecodeATBASH(String inputText){
StringBuilder str = new StringBuilder();
char cipChar;
int cipInt = 0;
for (int i = 0; i < inputText.length(); i++){
char ch = inputText.charAt(i);
int chi = charToNum(ch);
if (0 <= chi & chi <= 24){
cipInt = 25 - ((chi + 25) % 25);
}else if (chi == 25){
cipInt = 0;
}
if ((int)ch >= 65 && (int)ch <= 90 ){
cipChar = numToChar(cipInt, 1);
}else{
cipChar = numToChar(cipInt, 0);
}
str.append(cipChar);
}
return str.toString();
}
public String encodeProcedureATBASH(String inputText){
StringBuilder str1 = new StringBuilder();
StringBuilder encodedText = new StringBuilder();
String plainText = null;
String encode;
int noSpclChar = 0;
for (int i = 0; i < inputText.length(); i++){
if (('A' <= inputText.charAt(i) && inputText.charAt(i) <= 'Z') || ('a' <= inputText.charAt(i) && inputText.charAt(i) <= 'z')){
str1.append(inputText.charAt(i));
plainText = str1.toString();
noSpclChar = 1;
}else {
noSpclChar = 0;
if (plainText != null){
encodedText.append(encodeDecodeATBASH(plainText));
}
str1.delete(0, i);
plainText = null;
encodedText.append(inputText.charAt(i));
}
//je % et & na @ th.
}
if (noSpclChar == 1 & plainText != null){
encodedText.append(encodeDecodeATBASH(plainText));
}
encode = encodedText.toString();
return encode;
}
public String decodeProcedureATBASH(String encode){
StringBuilder str2 = new StringBuilder();
StringBuilder decodedText = new StringBuilder();
String plainText = null;
String decode;
int noSpclChar = 0;
for (int i = 0; i < encode.length(); i++){
if (('A' <= encode.charAt(i) && encode.charAt(i) <= 'Z') || ('a' <= encode.charAt(i) && encode.charAt(i) <= 'z')){
str2.append(encode.charAt(i));
plainText = str2.toString();
noSpclChar = 1;
}else {
noSpclChar = 0;
if (plainText != null){
decodedText.append(encodeDecodeATBASH(plainText));
}
str2.delete(0, i);
plainText = null;
decodedText.append(encode.charAt(i));
}
//je % et & na @ th.
}
if (noSpclChar == 1 & plainText != null){
decodedText.append(encodeDecodeATBASH(plainText));
}
decode = decodedText.toString();
return decode;
}
private int charToNum(char c){
int ret = -1;
if (c == 'A'||c == 'a'){
ret = 0;
}else if(c == 'B'||c == 'b'){
ret = 1;
}else if(c == 'C'||c == 'c'){
ret = 2;
}else if(c == 'D'||c == 'd'){
ret = 3;
}else if(c == 'E'||c == 'e'){
ret = 4;
}else if(c == 'F'||c == 'f'){
ret = 5;
}else if(c == 'G'||c == 'g'){
ret = 6;
}else if(c == 'H'||c == 'h'){
ret = 7;
}else if(c == 'I'||c == 'i'){
ret = 8;
}else if(c == 'J'||c == 'j'){
ret = 9;
}else if(c == 'K'||c == 'k'){
ret = 10;
}else if(c == 'L'||c == 'l'){
ret = 11;
}else if(c == 'M'||c == 'm'){
ret = 12;
}else if(c == 'N'||c == 'n'){
ret = 13;
}else if(c == 'O'||c == 'o'){
ret = 14;
}else if(c == 'P'||c == 'p'){
ret = 15;
}else if(c == 'Q'||c == 'q'){
ret = 16;
}else if(c == 'R'||c == 'r'){
ret = 17;
}else if(c == 'S'||c == 's'){
ret = 18;
}else if(c == 'T'||c == 't'){
ret = 19;
}else if(c == 'U'||c == 'u'){
ret = 20;
}else if(c == 'V'||c == 'v'){
ret = 21;
}else if(c == 'W'||c == 'w'){
ret = 22;
}else if(c == 'X'||c == 'x'){
ret = 23;
}else if(c == 'Y'||c == 'y'){
ret = 24;
}else if(c == 'Z'||c == 'z'){
ret = 25;
}
return ret;
}
private char numToChar(int i, int j){
char c = '\0';
if (i == 0){
if (j == 1){
c = 'A';
}else{
c = 'a';
}
}else if(i == 1){
if (j == 1){
c = 'B';
}else{
c = 'b';
}
}else if(i == 2){
if (j == 1){
c = 'C';
}else{
c = 'c';
}
}else if(i == 3){
if (j == 1){
c = 'D';
}else{
c = 'd';
}
}else if(i == 4){
if (j == 1){
c = 'E';
}else{
c = 'e';
}
}else if(i == 5){
if (j == 1){
c = 'F';
}else{
c = 'f';
}
}else if(i == 6){
if (j == 1){
c = 'G';
}else{
c = 'g';
}
}else if(i == 7){
if (j == 1){
c = 'H';
}else{
c = 'h';
}
}else if(i == 8){
if (j == 1){
c = 'I';
}else{
c = 'i';
}
}else if(i == 9){
if (j == 1){
c = 'J';
}else{
c = 'j';
}
}else if(i == 10){
if (j == 1){
c = 'K';
}else{
c = 'k';
}
}else if(i == 11){
if (j == 1){
c = 'L';
}else{
c = 'l';
}
}else if(i == 12){
if (j == 1){
c = 'M';
}else{
c = 'm';
}
}else if(i == 13){
if (j == 1){
c = 'N';
}else{
c = 'n';
}
}else if(i == 14){
if (j == 1){
c = 'O';
}else{
c = 'o';
}
}else if(i == 15){
if (j == 1){
c = 'P';
}else{
c = 'p';
}
}else if(i == 16){
if (j == 1){
c = 'Q';
}else{
c = 'q';
}
}else if(i == 17){
if (j == 1){
c = 'R';
}else{
c = 'r';
}
}else if(i == 18){
if (j == 1){
c = 'S';
}else{
c = 's';
}
}else if(i == 19){
if (j == 1){
c = 'T';
}else{
c = 't';
}
}else if(i == 20){
if (j == 1){
c = 'U';
}else{
c = 'u';
}
}else if(i == 21){
if (j == 1){
c = 'V';
}else{
c = 'v';
}
}else if(i ==22){
if (j == 1){
c = 'W';
}else{
c = 'w';
}
}else if(i ==23){
if (j == 1){
c = 'X';
}else{
c = 'x';
}
}else if(i ==24){
if (j == 1){
c = 'Y';
}else{
c = 'y';
}
}else if(i == 25){
if (j == 1){
c = 'Z';
}else{
c = 'z';
}
}
return c;
}
}