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packagecom.lms.common.utils;importjava.io.UnsupportedEncodingException;importjava.util.ArrayList;importjava.util.List;/*** DES加密解密工具

* 加密：DesUtils.encode("admin","1,2,3");

* 解密：DesUtils.decode("012C2C9BA925FAF8045B2FD9B02A2664","1,2,3");

*@authorThinkGem*/

public classDesUtils {private static DesCore desCore = newDesCore();/*** DES加密(secretKey代表3个key，用逗号分隔)*/

public staticString encode(String data, String secretKey) {if(StringUtils.isBlank(data)){return "";

}

String[] ks= StringUtils.split(secretKey, ",");if (ks.length >= 3){return desCore.strEnc(data, ks[0], ks[1], ks[2]);

}return desCore.strEnc(data, secretKey, "", "");

}/*** DES解密(secretKey代表3个key，用逗号分隔)*/

public staticString decode(String data, String secretKey) {if(StringUtils.isBlank(data)){return "";

}

String[] ks= StringUtils.split(secretKey, ",");if (ks.length >= 3){return desCore.strDec(data, ks[0], ks[1], ks[2]);

}return desCore.strDec(data, secretKey, "", "");

}/*** DES加密/解密

* @Copyright Copyright (c) 2006

*@authorGuapo*/@SuppressWarnings({"rawtypes","unused","unchecked"})static classDesCore {/** encrypt the string to string made up of hex return the encrypted string*/

publicString strEnc(String data, String firstKey, String secondKey, String thirdKey) {int leng =data.length();

String encData= "";

List firstKeyBt= null, secondKeyBt = null, thirdKeyBt = null;int firstLength = 0, secondLength = 0, thirdLength = 0;if (firstKey != null && firstKey != "") {

firstKeyBt=getKeyBytes(firstKey);

firstLength=firstKeyBt.size();

}if (secondKey != null && secondKey != "") {

secondKeyBt=getKeyBytes(secondKey);

secondLength=secondKeyBt.size();

}if (thirdKey != null && thirdKey != "") {

thirdKeyBt=getKeyBytes(thirdKey);

thirdLength=thirdKeyBt.size();

}if (leng > 0) {if (leng < 4) {int[] bt =strToBt(data);int[] encByte = null;if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {int[] tempBt;intx, y, z;

tempBt=bt;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}for (y = 0; y < secondLength; y++) {

tempBt= enc(tempBt, (int[]) secondKeyBt.get(y));

}for (z = 0; z < thirdLength; z++) {

tempBt= enc(tempBt, (int[]) thirdKeyBt.get(z));

}

encByte=tempBt;

}else{if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {int[] tempBt;intx, y;

tempBt=bt;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}for (y = 0; y < secondLength; y++) {

tempBt= enc(tempBt, (int[]) secondKeyBt.get(y));

}

encByte=tempBt;

}else{if (firstKey != null && firstKey != "") {int[] tempBt;int x = 0;

tempBt=bt;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}

encByte=tempBt;

}

}

}

encData=bt64ToHex(encByte);

}else{int iterator = (leng / 4);int remainder = leng % 4;int i = 0;for (i = 0; i < iterator; i++) {

String tempData= data.substring(i * 4 + 0, i * 4 + 4);int[] tempByte =strToBt(tempData);int[] encByte = null;if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {int[] tempBt;intx, y, z;

tempBt=tempByte;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}for (y = 0; y < secondLength; y++) {

tempBt= enc(tempBt, (int[]) secondKeyBt.get(y));

}for (z = 0; z < thirdLength; z++) {

tempBt= enc(tempBt, (int[]) thirdKeyBt.get(z));

}

encByte=tempBt;

}else{if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {int[] tempBt;intx, y;

tempBt=tempByte;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}for (y = 0; y < secondLength; y++) {

tempBt= enc(tempBt, (int[]) secondKeyBt.get(y));

}

encByte=tempBt;

}else{if (firstKey != null && firstKey != "") {int[] tempBt;intx;

tempBt=tempByte;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}

encByte=tempBt;

}

}

}

encData+=bt64ToHex(encByte);

}if (remainder > 0) {

String remainderData= data.substring(iterator * 4 + 0, leng);int[] tempByte =strToBt(remainderData);int[] encByte = null;if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {int[] tempBt;intx, y, z;

tempBt=tempByte;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}for (y = 0; y < secondLength; y++) {

tempBt= enc(tempBt, (int[]) secondKeyBt.get(y));

}for (z = 0; z < thirdLength; z++) {

tempBt= enc(tempBt, (int[]) thirdKeyBt.get(z));

}

encByte=tempBt;

}else{if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {int[] tempBt;intx, y;

tempBt=tempByte;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}for (y = 0; y < secondLength; y++) {

tempBt= enc(tempBt, (int[]) secondKeyBt.get(y));

}

encByte=tempBt;

}else{if (firstKey != null && firstKey != "") {int[] tempBt;intx;

tempBt=tempByte;for (x = 0; x < firstLength; x++) {

tempBt= enc(tempBt, (int[]) firstKeyBt.get(x));

}

encByte=tempBt;

}

}

}

encData+=bt64ToHex(encByte);

}

}

}returnencData;

}/** decrypt the encrypted string to the original string

*

* return the original string*/

publicString strDec(String data, String firstKey, String secondKey, String thirdKey) {int leng =data.length();

String decStr= "";

List firstKeyBt= null, secondKeyBt = null, thirdKeyBt = null;int firstLength = 0, secondLength = 0, thirdLength = 0;if (firstKey != null && firstKey != "") {

firstKeyBt=getKeyBytes(firstKey);

firstLength=firstKeyBt.size();

}if (secondKey != null && secondKey != "") {

secondKeyBt=getKeyBytes(secondKey);

secondLength=secondKeyBt.size();

}if (thirdKey != null && thirdKey != "") {

thirdKeyBt=getKeyBytes(thirdKey);

thirdLength=thirdKeyBt.size();

}int iterator = leng / 16;int i = 0;for (i = 0; i < iterator; i++) {

String tempData= data.substring(i * 16 + 0, i * 16 + 16);

String strByte=hexToBt64(tempData);int[] intByte = new int[64];int j = 0;for (j = 0; j < 64; j++) {

intByte[j]= Integer.parseInt(strByte.substring(j, j + 1));

}int[] decByte = null;if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {int[] tempBt;intx, y, z;

tempBt=intByte;for (x = thirdLength - 1; x >= 0; x--) {

tempBt= dec(tempBt, (int[]) thirdKeyBt.get(x));

}for (y = secondLength - 1; y >= 0; y--) {

tempBt= dec(tempBt, (int[]) secondKeyBt.get(y));

}for (z = firstLength - 1; z >= 0; z--) {

tempBt= dec(tempBt, (int[]) firstKeyBt.get(z));

}

decByte=tempBt;

}else{if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {int[] tempBt;intx, y, z;

tempBt=intByte;for (x = secondLength - 1; x >= 0; x--) {

tempBt= dec(tempBt, (int[]) secondKeyBt.get(x));

}for (y = firstLength - 1; y >= 0; y--) {

tempBt= dec(tempBt, (int[]) firstKeyBt.get(y));

}

decByte=tempBt;

}else{if (firstKey != null && firstKey != "") {int[] tempBt;intx, y, z;

tempBt=intByte;for (x = firstLength - 1; x >= 0; x--) {

tempBt= dec(tempBt, (int[]) firstKeyBt.get(x));

}

decByte=tempBt;

}

}

}

decStr+=byteToString(decByte);

}returndecStr;

}/** chang the string into the bit array

*

* return bit array(it's length % 64 = 0)*/

publicList getKeyBytes(String key) {

List keyBytes= newArrayList();int leng =key.length();int iterator = (leng / 4);int remainder = leng % 4;int i = 0;for (i = 0; i < iterator; i++) {

keyBytes.add(i, strToBt(key.substring(i* 4 + 0, i * 4 + 4)));

}if (remainder > 0) {//keyBytes[i] = strToBt(key.substring(i*4+0,leng));

keyBytes.add(i, strToBt(key.substring(i * 4 + 0, leng)));

}returnkeyBytes;

}/** chang the string(it's length <= 4) into the bit array

*

* return bit array(it's length = 64)*/

public int[] strToBt(String str) {int leng =str.length();int[] bt = new int[64];if (leng < 4) {int i = 0, j = 0, p = 0, q = 0;for (i = 0; i < leng; i++) {int k =str.charAt(i);for (j = 0; j < 16; j++) {int pow = 1, m = 0;for (m = 15; m > j; m--) {

pow*= 2;

}//bt.set(16*i+j,""+(k/pow)%2));

bt[16 * i + j] = (k / pow) % 2;

}

}for (p = leng; p < 4; p++) {int k = 0;for (q = 0; q < 16; q++) {int pow = 1, m = 0;for (m = 15; m > q; m--) {

pow*= 2;

}//bt[16*p+q]=parseInt(k/pow)%2;//bt.add(16*p+q,""+((k/pow)%2));

bt[16 * p + q] = (k / pow) % 2;

}

}

}else{for (int i = 0; i < 4; i++) {int k =str.charAt(i);for (int j = 0; j < 16; j++) {int pow = 1;for (int m = 15; m > j; m--) {

pow*= 2;

}//bt[16*i+j]=parseInt(k/pow)%2;//bt.add(16*i+j,""+((k/pow)%2));

bt[16 * i + j] = (k / pow) % 2;

}

}

}returnbt;

}/** chang the bit(it's length = 4) into the hex

*

* return hex*/

publicString bt4ToHex(String binary) {

String hex= "";if (binary.equalsIgnoreCase("0000")) {

hex= "0";

}else if (binary.equalsIgnoreCase("0001")) {

hex= "1";

}else if (binary.equalsIgnoreCase("0010")) {

hex= "2";

}else if (binary.equalsIgnoreCase("0011")) {

hex= "3";

}else if (binary.equalsIgnoreCase("0100")) {

hex= "4";

}else if (binary.equalsIgnoreCase("0101")) {

hex= "5";

}else if (binary.equalsIgnoreCase("0110")) {

hex= "6";

}else if (binary.equalsIgnoreCase("0111")) {

hex= "7";

}else if (binary.equalsIgnoreCase("1000")) {

hex= "8";

}else if (binary.equalsIgnoreCase("1001")) {

hex= "9";

}else if (binary.equalsIgnoreCase("1010")) {

hex= "A";

}else if (binary.equalsIgnoreCase("1011")) {

hex= "B";

}else if (binary.equalsIgnoreCase("1100")) {

hex= "C";

}else if (binary.equalsIgnoreCase("1101")) {

hex= "D";

}else if (binary.equalsIgnoreCase("1110")) {

hex= "E";

}else if (binary.equalsIgnoreCase("1111")) {

hex= "F";

}returnhex;

}/** chang the hex into the bit(it's length = 4)

*

* return the bit(it's length = 4)*/

publicString hexToBt4(String hex) {

String binary= "";if (hex.equalsIgnoreCase("0")) {

binary= "0000";

}else if (hex.equalsIgnoreCase("1")) {

binary= "0001";

}if (hex.equalsIgnoreCase("2")) {

binary= "0010";

}if (hex.equalsIgnoreCase("3")) {

binary= "0011";

}if (hex.equalsIgnoreCase("4")) {

binary= "0100";

}if (hex.equalsIgnoreCase("5")) {

binary= "0101";

}if (hex.equalsIgnoreCase("6")) {

binary= "0110";

}if (hex.equalsIgnoreCase("7")) {

binary= "0111";

}if (hex.equalsIgnoreCase("8")) {

binary= "1000";

}if (hex.equalsIgnoreCase("9")) {

binary= "1001";

}if (hex.equalsIgnoreCase("A")) {

binary= "1010";

}if (hex.equalsIgnoreCase("B")) {

binary= "1011";

}if (hex.equalsIgnoreCase("C")) {

binary= "1100";

}if (hex.equalsIgnoreCase("D")) {

binary= "1101";

}if (hex.equalsIgnoreCase("E")) {

binary= "1110";

}if (hex.equalsIgnoreCase("F")) {

binary= "1111";

}returnbinary;

}/** chang the bit(it's length = 64) into the string

*

* return string*/

public String byteToString(int[] byteData) {

String str= "";for (int i = 0; i < 4; i++) {int count = 0;for (int j = 0; j < 16; j++) {int pow = 1;for (int m = 15; m > j; m--) {

pow*= 2;

}

count+= byteData[16 * i + j] *pow;

}if (count != 0) {

str+= "" + (char) (count);

}

}returnstr;

}public String bt64ToHex(int[] byteData) {

String hex= "";for (int i = 0; i < 16; i++) {

String bt= "";for (int j = 0; j < 4; j++) {

bt+= byteData[i * 4 +j];

}

hex+=bt4ToHex(bt);

}returnhex;

}publicString hexToBt64(String hex) {

String binary= "";for (int i = 0; i < 16; i++) {

binary+= hexToBt4(hex.substring(i, i + 1));

}returnbinary;

}/** the 64 bit des core arithmetic*/

public int[] enc(int[] dataByte, int[] keyByte) {int[][] keys =generateKeys(keyByte);int[] ipByte =initPermute(dataByte);int[] ipLeft = new int[32];int[] ipRight = new int[32];int[] tempLeft = new int[32];int i = 0, j = 0, k = 0, m = 0, n = 0;for (k = 0; k < 32; k++) {

ipLeft[k]=ipByte[k];

ipRight[k]= ipByte[32 +k];

}for (i = 0; i < 16; i++) {for (j = 0; j < 32; j++) {

tempLeft[j]=ipLeft[j];

ipLeft[j]=ipRight[j];

}int[] key = new int[48];for (m = 0; m < 48; m++) {

key[m]=keys[i][m];

}int[] tempRight =xor(pPermute(sBoxPermute(xor(expandPermute(ipRight), key))), tempLeft);for (n = 0; n < 32; n++) {

ipRight[n]=tempRight[n];

}

}int[] finalData = new int[64];for (i = 0; i < 32; i++) {

finalData[i]=ipRight[i];

finalData[32 + i] =ipLeft[i];

}returnfinallyPermute(finalData);

}public int[] dec(int[] dataByte, int[] keyByte) {int[][] keys =generateKeys(keyByte);int[] ipByte =initPermute(dataByte);int[] ipLeft = new int[32];int[] ipRight = new int[32];int[] tempLeft = new int[32];int i = 0, j = 0, k = 0, m = 0, n = 0;for (k = 0; k < 32; k++) {

ipLeft[k]=ipByte[k];

ipRight[k]= ipByte[32 +k];

}for (i = 15; i >= 0; i--) {for (j = 0; j < 32; j++) {

tempLeft[j]=ipLeft[j];

ipLeft[j]=ipRight[j];

}int[] key = new int[48];for (m = 0; m < 48; m++) {

key[m]=keys[i][m];

}int[] tempRight =xor(pPermute(sBoxPermute(xor(expandPermute(ipRight), key))), tempLeft);for (n = 0; n < 32; n++) {

ipRight[n]=tempRight[n];

}

}int[] finalData = new int[64];for (i = 0; i < 32; i++) {

finalData[i]=ipRight[i];

finalData[32 + i] =ipLeft[i];

}returnfinallyPermute(finalData);

}public int[] initPermute(int[] originalData) {int[] ipByte = new int[64];int i = 0, m = 1, n = 0, j, k;for (i = 0, m = 1, n = 0; i < 4; i++, m += 2, n += 2) {for (j = 7, k = 0; j >= 0; j--, k++) {

ipByte[i* 8 + k] = originalData[j * 8 +m];

ipByte[i* 8 + k + 32] = originalData[j * 8 +n];

}

}returnipByte;

}public int[] expandPermute(int[] rightData) {int[] epByte = new int[48];inti, j;for (i = 0; i < 8; i++) {if (i == 0) {

epByte[i* 6 + 0] = rightData[31];

}else{

epByte[i* 6 + 0] = rightData[i * 4 - 1];

}

epByte[i* 6 + 1] = rightData[i * 4 + 0];

epByte[i* 6 + 2] = rightData[i * 4 + 1];

epByte[i* 6 + 3] = rightData[i * 4 + 2];

epByte[i* 6 + 4] = rightData[i * 4 + 3];if (i == 7) {

epByte[i* 6 + 5] = rightData[0];

}else{

epByte[i* 6 + 5] = rightData[i * 4 + 4];

}

}returnepByte;

}public int[] xor(int[] byteOne, int[] byteTwo) {//var xorByte = new Array(byteOne.length);//for(int i = 0;i < byteOne.length; i ++){//xorByte[i] = byteOne[i] ^ byteTwo[i];//}//return xorByte;

int[] xorByte = new int[byteOne.length];for (int i = 0; i < byteOne.length; i++) {

xorByte[i]= byteOne[i] ^byteTwo[i];

}returnxorByte;

}public int[] sBoxPermute(int[] expandByte) {//var sBoxByte = new Array(32);

int[] sBoxByte = new int[32];

String binary= "";int[][] s1 = { { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 }, { 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8},

{4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 }, { 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13} };/*Table - s2*/

int[][] s2 = { { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 }, { 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5},

{0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 }, { 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9} };/*Table - s3*/

int[][] s3 = { { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 }, { 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1},

{13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 }, { 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12} };/*Table - s4*/

int[][] s4 = { { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 }, { 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9},

{10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 }, { 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14} };/*Table - s5*/

int[][] s5 = { { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 }, { 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6},

{4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 }, { 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3} };/*Table - s6*/

int[][] s6 = { { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 }, { 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8},

{9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 }, { 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13} };/*Table - s7*/

int[][] s7 = { { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 }, { 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6},

{1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 }, { 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12} };/*Table - s8*/

int[][] s8 = { { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 }, { 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2},

{7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 }, { 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11} };for (int m = 0; m < 8; m++) {int i = 0, j = 0;

i= expandByte[m * 6 + 0] * 2 + expandByte[m * 6 + 5];

j= expandByte[m * 6 + 1] * 2 * 2 * 2 + expandByte[m * 6 + 2] * 2 * 2 + expandByte[m * 6 + 3] * 2 + expandByte[m * 6 + 4];switch(m) {case 0:

binary=getBoxBinary(s1[i][j]);break;case 1:

binary=getBoxBinary(s2[i][j]);break;case 2:

binary=getBoxBinary(s3[i][j]);break;case 3:

binary=getBoxBinary(s4[i][j]);break;case 4:

binary=getBoxBinary(s5[i][j]);break;case 5:

binary=getBoxBinary(s6[i][j]);break;case 6:

binary=getBoxBinary(s7[i][j]);break;case 7:

binary=getBoxBinary(s8[i][j]);break;

}

sBoxByte[m* 4 + 0] = Integer.parseInt(binary.substring(0, 1));

sBoxByte[m* 4 + 1] = Integer.parseInt(binary.substring(1, 2));

sBoxByte[m* 4 + 2] = Integer.parseInt(binary.substring(2, 3));

sBoxByte[m* 4 + 3] = Integer.parseInt(binary.substring(3, 4));

}returnsBoxByte;

}public int[] pPermute(int[] sBoxByte) {int[] pBoxPermute = new int[32];

pBoxPermute[0] = sBoxByte[15];

pBoxPermute[1] = sBoxByte[6];

pBoxPermute[2] = sBoxByte[19];

pBoxPermute[3] = sBoxByte[20];

pBoxPermute[4] = sBoxByte[28];

pBoxPermute[5] = sBoxByte[11];

pBoxPermute[6] = sBoxByte[27];

pBoxPermute[7] = sBoxByte[16];

pBoxPermute[8] = sBoxByte[0];

pBoxPermute[9] = sBoxByte[14];

pBoxPermute[10] = sBoxByte[22];

pBoxPermute[11] = sBoxByte[25];

pBoxPermute[12] = sBoxByte[4];

pBoxPermute[13] = sBoxByte[17];

pBoxPermute[14] = sBoxByte[30];

pBoxPermute[15] = sBoxByte[9];

pBoxPermute[16] = sBoxByte[1];

pBoxPermute[17] = sBoxByte[7];

pBoxPermute[18] = sBoxByte[23];

pBoxPermute[19] = sBoxByte[13];

pBoxPermute[20] = sBoxByte[31];

pBoxPermute[21] = sBoxByte[26];

pBoxPermute[22] = sBoxByte[2];

pBoxPermute[23] = sBoxByte[8];

pBoxPermute[24] = sBoxByte[18];

pBoxPermute[25] = sBoxByte[12];

pBoxPermute[26] = sBoxByte[29];

pBoxPermute[27] = sBoxByte[5];

pBoxPermute[28] = sBoxByte[21];

pBoxPermute[29] = sBoxByte[10];

pBoxPermute[30] = sBoxByte[3];

pBoxPermute[31] = sBoxByte[24];returnpBoxPermute;

}public int[] finallyPermute(int[] endByte) {int[] fpByte = new int[64];

fpByte[0] = endByte[39];

fpByte[1] = endByte[7];

fpByte[2] = endByte[47];

fpByte[3] = endByte[15];

fpByte[4] = endByte[55];

fpByte[5] = endByte[23];

fpByte[6] = endByte[63];

fpByte[7] = endByte[31];

fpByte[8] = endByte[38];

fpByte[9] = endByte[6];

fpByte[10] = endByte[46];

fpByte[11] = endByte[14];

fpByte[12] = endByte[54];

fpByte[13] = endByte[22];

fpByte[14] = endByte[62];

fpByte[15] = endByte[30];

fpByte[16] = endByte[37];

fpByte[17] = endByte[5];

fpByte[18] = endByte[45];

fpByte[19] = endByte[13];

fpByte[20] = endByte[53];

fpByte[21] = endByte[21];

fpByte[22] = endByte[61];

fpByte[23] = endByte[29];

fpByte[24] = endByte[36];

fpByte[25] = endByte[4];

fpByte[26] = endByte[44];

fpByte[27] = endByte[12];

fpByte[28] = endByte[52];

fpByte[29] = endByte[20];

fpByte[30] = endByte[60];

fpByte[31] = endByte[28];

fpByte[32] = endByte[35];

fpByte[33] = endByte[3];

fpByte[34] = endByte[43];

fpByte[35] = endByte[11];

fpByte[36] = endByte[51];

fpByte[37] = endByte[19];

fpByte[38] = endByte[59];

fpByte[39] = endByte[27];

fpByte[40] = endByte[34];

fpByte[41] = endByte[2];

fpByte[42] = endByte[42];

fpByte[43] = endByte[10];

fpByte[44] = endByte[50];

fpByte[45] = endByte[18];

fpByte[46] = endByte[58];

fpByte[47] = endByte[26];

fpByte[48] = endByte[33];

fpByte[49] = endByte[1];

fpByte[50] = endByte[41];

fpByte[51] = endByte[9];

fpByte[52] = endByte[49];

fpByte[53] = endByte[17];

fpByte[54] = endByte[57];

fpByte[55] = endByte[25];

fpByte[56] = endByte[32];

fpByte[57] = endByte[0];

fpByte[58] = endByte[40];

fpByte[59] = endByte[8];

fpByte[60] = endByte[48];

fpByte[61] = endByte[16];

fpByte[62] = endByte[56];

fpByte[63] = endByte[24];returnfpByte;

}public String getBoxBinary(inti) {

String binary= "";switch(i) {case 0:

binary= "0000";break;case 1:

binary= "0001";break;case 2:

binary= "0010";break;case 3:

binary= "0011";break;case 4:

binary= "0100";break;case 5:

binary= "0101";break;case 6:

binary= "0110";break;case 7:

binary= "0111";break;case 8:

binary= "1000";break;case 9:

binary= "1001";break;case 10:

binary= "1010";break;case 11:

binary= "1011";break;case 12:

binary= "1100";break;case 13:

binary= "1101";break;case 14:

binary= "1110";break;case 15:

binary= "1111";break;

}returnbinary;

}/** generate 16 keys for xor*/

public int[][] generateKeys(int[] keyByte) {int[] key = new int[56];int[][] keys = new int[16][48];//keys[ 0] = new Array();//keys[ 1] = new Array();//keys[ 2] = new Array();//keys[ 3] = new Array();//keys[ 4] = new Array();//keys[ 5] = new Array();//keys[ 6] = new Array();//keys[ 7] = new Array();//keys[ 8] = new Array();//keys[ 9] = new Array();//keys[10] = new Array();//keys[11] = new Array();//keys[12] = new Array();//keys[13] = new Array();//keys[14] = new Array();//keys[15] = new Array();

int[] loop = new int[] { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1};for (int i = 0; i < 7; i++) {for (int j = 0, k = 7; j < 8; j++, k--) {

key[i* 8 + j] = keyByte[8 * k +i];

}

}int i = 0;for (i = 0; i < 16; i++) {int tempLeft = 0;int tempRight = 0;for (int j = 0; j < loop[i]; j++) {

tempLeft= key[0];

tempRight= key[28];for (int k = 0; k < 27; k++) {

key[k]= key[k + 1];

key[28 + k] = key[29 +k];

}

key[27] =tempLeft;

key[55] =tempRight;

}//var tempKey = new Array(48);

int[] tempKey = new int[48];

tempKey[0] = key[13];

tempKey[1] = key[16];

tempKey[2] = key[10];

tempKey[3] = key[23];

tempKey[4] = key[0];

tempKey[5] = key[4];

tempKey[6] = key[2];

tempKey[7] = key[27];

tempKey[8] = key[14];

tempKey[9] = key[5];

tempKey[10] = key[20];

tempKey[11] = key[9];

tempKey[12] = key[22];

tempKey[13] = key[18];

tempKey[14] = key[11];

tempKey[15] = key[3];

tempKey[16] = key[25];

tempKey[17] = key[7];

tempKey[18] = key[15];

tempKey[19] = key[6];

tempKey[20] = key[26];

tempKey[21] = key[19];

tempKey[22] = key[12];

tempKey[23] = key[1];

tempKey[24] = key[40];

tempKey[25] = key[51];

tempKey[26] = key[30];

tempKey[27] = key[36];

tempKey[28] = key[46];

tempKey[29] = key[54];

tempKey[30] = key[29];

tempKey[31] = key[39];

tempKey[32] = key[50];

tempKey[33] = key[44];

tempKey[34] = key[32];

tempKey[35] = key[47];

tempKey[36] = key[43];

tempKey[37] = key[48];

tempKey[38] = key[38];

tempKey[39] = key[55];

tempKey[40] = key[33];

tempKey[41] = key[52];

tempKey[42] = key[45];

tempKey[43] = key[41];

tempKey[44] = key[49];

tempKey[45] = key[35];

tempKey[46] = key[28];

tempKey[47] = key[31];intm;switch(i) {case 0:for (m = 0; m < 48; m++) {

keys[0][m] =tempKey[m];

}break;case 1:for (m = 0; m < 48; m++) {

keys[1][m] =tempKey[m];

}break;case 2:for (m = 0; m < 48; m++) {

keys[2][m] =tempKey[m];

}break;case 3:for (m = 0; m < 48; m++) {

keys[3][m] =tempKey[m];

}break;case 4:for (m = 0; m < 48; m++) {

keys[4][m] =tempKey[m];

}break;case 5:for (m = 0; m < 48; m++) {

keys[5][m] =tempKey[m];

}break;case 6:for (m = 0; m < 48; m++) {

keys[6][m] =tempKey[m];

}break;case 7:for (m = 0; m < 48; m++) {

keys[7][m] =tempKey[m];

}break;case 8:for (m = 0; m < 48; m++) {

keys[8][m] =tempKey[m];

}break;case 9:for (m = 0; m < 48; m++) {

keys[9][m] =tempKey[m];

}break;case 10:for (m = 0; m < 48; m++) {

keys[10][m] =tempKey[m];

}break;case 11:for (m = 0; m < 48; m++) {

keys[11][m] =tempKey[m];

}break;case 12:for (m = 0; m < 48; m++) {

keys[12][m] =tempKey[m];

}break;case 13:for (m = 0; m < 48; m++) {

keys[13][m] =tempKey[m];

}break;case 14:for (m = 0; m < 48; m++) {

keys[14][m] =tempKey[m];

}break;case 15:for (m = 0; m < 48; m++) {

keys[15][m] =tempKey[m];

}break;

}

}returnkeys;

}

}

}