1029 行
30 KiB
JavaScript
1029 行
30 KiB
JavaScript
/**
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* DES加密解密
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* @Copyright Copyright (c) 2006
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* @author Guapo
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* @see DESCore
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*/
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/*
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* encrypt the string to string made up of hex
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* return the encrypted string
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*/
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function strEnc(data, firstKey, secondKey, thirdKey) {
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var leng = data.length;
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var encData = "";
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var firstKeyBt, secondKeyBt, thirdKeyBt, firstLength, secondLength, thirdLength;
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if (firstKey != null && firstKey != "") {
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firstKeyBt = getKeyBytes(firstKey);
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firstLength = firstKeyBt.length;
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}
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if (secondKey != null && secondKey != "") {
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secondKeyBt = getKeyBytes(secondKey);
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secondLength = secondKeyBt.length;
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}
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if (thirdKey != null && thirdKey != "") {
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thirdKeyBt = getKeyBytes(thirdKey);
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thirdLength = thirdKeyBt.length;
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}
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if (leng > 0) {
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if (leng < 4) {
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var bt = strToBt(data);
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var encByte;
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {
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var tempBt;
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var x, y, z;
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tempBt = bt;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, secondKeyBt[y]);
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}
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for (z = 0; z < thirdLength; z++) {
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tempBt = enc(tempBt, thirdKeyBt[z]);
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {
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var tempBt;
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var x, y;
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tempBt = bt;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, secondKeyBt[y]);
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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var tempBt;
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var x = 0;
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tempBt = bt;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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encByte = tempBt;
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}
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}
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}
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encData = bt64ToHex(encByte);
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} else {
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var iterator = parseInt(leng / 4);
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var remainder = leng % 4;
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var i = 0;
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for (i = 0; i < iterator; i++) {
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var tempData = data.substring(i * 4 + 0, i * 4 + 4);
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var tempByte = strToBt(tempData);
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var encByte;
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {
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var tempBt;
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var x, y, z;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, secondKeyBt[y]);
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}
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for (z = 0; z < thirdLength; z++) {
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tempBt = enc(tempBt, thirdKeyBt[z]);
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {
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var tempBt;
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var x, y;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, secondKeyBt[y]);
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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var tempBt;
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var x;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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encByte = tempBt;
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}
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}
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}
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encData += bt64ToHex(encByte);
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}
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if (remainder > 0) {
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var remainderData = data.substring(iterator * 4 + 0, leng);
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var tempByte = strToBt(remainderData);
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var encByte;
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {
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var tempBt;
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var x, y, z;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, secondKeyBt[y]);
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}
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for (z = 0; z < thirdLength; z++) {
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tempBt = enc(tempBt, thirdKeyBt[z]);
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {
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var tempBt;
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var x, y;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, secondKeyBt[y]);
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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var tempBt;
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var x;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, firstKeyBt[x]);
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}
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encByte = tempBt;
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}
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}
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}
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encData += bt64ToHex(encByte);
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}
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}
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}
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return encData;
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}
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/*
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* decrypt the encrypted string to the original string
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*
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* return the original string
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*/
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function strDec(data, firstKey, secondKey, thirdKey) {
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var leng = data.length;
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var decStr = "";
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var firstKeyBt, secondKeyBt, thirdKeyBt, firstLength, secondLength, thirdLength;
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if (firstKey != null && firstKey != "") {
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firstKeyBt = getKeyBytes(firstKey);
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firstLength = firstKeyBt.length;
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}
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if (secondKey != null && secondKey != "") {
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secondKeyBt = getKeyBytes(secondKey);
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secondLength = secondKeyBt.length;
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}
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if (thirdKey != null && thirdKey != "") {
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thirdKeyBt = getKeyBytes(thirdKey);
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thirdLength = thirdKeyBt.length;
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}
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var iterator = parseInt(leng / 16);
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var i = 0;
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for (i = 0; i < iterator; i++) {
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var tempData = data.substring(i * 16 + 0, i * 16 + 16);
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var strByte = hexToBt64(tempData);
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var intByte = new Array(64);
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var j = 0;
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for (j = 0; j < 64; j++) {
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intByte[j] = parseInt(strByte.substring(j, j + 1));
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}
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var decByte;
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != "") {
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var tempBt;
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var x, y, z;
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tempBt = intByte;
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for (x = thirdLength - 1; x >= 0; x--) {
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tempBt = dec(tempBt, thirdKeyBt[x]);
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}
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for (y = secondLength - 1; y >= 0; y--) {
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tempBt = dec(tempBt, secondKeyBt[y]);
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}
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for (z = firstLength - 1; z >= 0; z--) {
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tempBt = dec(tempBt, firstKeyBt[z]);
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}
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decByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "" && secondKey != null && secondKey != "") {
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var tempBt;
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var x, y, z;
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tempBt = intByte;
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for (x = secondLength - 1; x >= 0; x--) {
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tempBt = dec(tempBt, secondKeyBt[x]);
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}
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for (y = firstLength - 1; y >= 0; y--) {
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tempBt = dec(tempBt, firstKeyBt[y]);
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}
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decByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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var tempBt;
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var x, y, z;
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tempBt = intByte;
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for (x = firstLength - 1; x >= 0; x--) {
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tempBt = dec(tempBt, firstKeyBt[x]);
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}
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decByte = tempBt;
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}
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}
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}
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decStr += byteToString(decByte);
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}
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return decStr;
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}
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/*
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* chang the string into the bit array
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*
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* return bit array(it's length % 64 = 0)
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*/
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function getKeyBytes(key) {
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var keyBytes = new Array();
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var leng = key.length;
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var iterator = parseInt(leng / 4);
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var remainder = leng % 4;
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var i = 0;
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for (i = 0; i < iterator; i++) {
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keyBytes[i] = strToBt(key.substring(i * 4 + 0, i * 4 + 4));
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}
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if (remainder > 0) {
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keyBytes[i] = strToBt(key.substring(i * 4 + 0, leng));
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}
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return keyBytes;
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}
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/*
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* chang the string(it's length <= 4) into the bit array
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*
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* return bit array(it's length = 64)
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*/
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function strToBt(str) {
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var leng = str.length;
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var bt = new Array(64);
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if (leng < 4) {
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var i = 0, j = 0, p = 0, q = 0;
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for (i = 0; i < leng; i++) {
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var k = str.charCodeAt(i);
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for (j = 0; j < 16; j++) {
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var pow = 1, m = 0;
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for (m = 15; m > j; m--) {
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pow *= 2;
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}
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bt[16 * i + j] = parseInt(k / pow) % 2;
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}
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}
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for (p = leng; p < 4; p++) {
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var k = 0;
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for (q = 0; q < 16; q++) {
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var pow = 1, m = 0;
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for (m = 15; m > q; m--) {
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pow *= 2;
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}
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bt[16 * p + q] = parseInt(k / pow) % 2;
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}
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}
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} else {
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for (i = 0; i < 4; i++) {
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var k = str.charCodeAt(i);
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for (j = 0; j < 16; j++) {
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var pow = 1;
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for (m = 15; m > j; m--) {
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pow *= 2;
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}
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bt[16 * i + j] = parseInt(k / pow) % 2;
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}
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}
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}
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return bt;
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}
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/*
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* chang the bit(it's length = 4) into the hex
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*
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* return hex
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*/
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function bt4ToHex(binary) {
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var hex;
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switch (binary) {
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case "0000" :
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hex = "0";
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break;
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case "0001" :
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hex = "1";
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break;
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case "0010" :
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hex = "2";
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break;
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case "0011" :
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hex = "3";
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break;
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case "0100" :
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hex = "4";
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break;
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case "0101" :
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hex = "5";
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break;
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case "0110" :
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hex = "6";
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break;
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case "0111" :
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hex = "7";
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break;
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case "1000" :
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hex = "8";
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break;
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case "1001" :
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hex = "9";
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break;
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case "1010" :
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hex = "A";
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break;
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case "1011" :
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hex = "B";
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break;
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case "1100" :
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hex = "C";
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break;
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case "1101" :
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hex = "D";
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break;
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case "1110" :
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hex = "E";
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break;
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case "1111" :
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hex = "F";
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break;
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}
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return hex;
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}
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/*
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* chang the hex into the bit(it's length = 4)
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*
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* return the bit(it's length = 4)
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*/
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function hexToBt4(hex) {
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var binary;
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switch (hex) {
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case "0" :
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binary = "0000";
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break;
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case "1" :
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binary = "0001";
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break;
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case "2" :
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binary = "0010";
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break;
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case "3" :
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binary = "0011";
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break;
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case "4" :
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binary = "0100";
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break;
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case "5" :
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binary = "0101";
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break;
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case "6" :
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binary = "0110";
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break;
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case "7" :
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binary = "0111";
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break;
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case "8" :
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binary = "1000";
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break;
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case "9" :
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binary = "1001";
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break;
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case "A" :
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binary = "1010";
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break;
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case "B" :
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binary = "1011";
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break;
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case "C" :
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binary = "1100";
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break;
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case "D" :
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binary = "1101";
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break;
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case "E" :
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binary = "1110";
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break;
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case "F" :
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binary = "1111";
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break;
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}
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return binary;
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}
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/*
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* chang the bit(it's length = 64) into the string
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*
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* return string
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*/
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function byteToString(byteData) {
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var str = "";
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for (i = 0; i < 4; i++) {
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var count = 0;
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for (j = 0; j < 16; j++) {
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var pow = 1;
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for (m = 15; m > j; m--) {
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pow *= 2;
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}
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count += byteData[16 * i + j] * pow;
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}
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if (count != 0) {
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str += String.fromCharCode(count);
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}
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}
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return str;
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}
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function bt64ToHex(byteData) {
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var hex = "";
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for (i = 0; i < 16; i++) {
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var bt = "";
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for (j = 0; j < 4; j++) {
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bt += byteData[i * 4 + j];
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}
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hex += bt4ToHex(bt);
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}
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return hex;
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}
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function hexToBt64(hex) {
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var binary = "";
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for (i = 0; i < 16; i++) {
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binary += hexToBt4(hex.substring(i, i + 1));
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}
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return binary;
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}
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/*
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* the 64 bit des core arithmetic
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*/
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function enc(dataByte, keyByte) {
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var keys = generateKeys(keyByte);
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var ipByte = initPermute(dataByte);
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var ipLeft = new Array(32);
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var ipRight = new Array(32);
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var tempLeft = new Array(32);
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var i = 0, j = 0, k = 0, m = 0, n = 0;
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for (k = 0; k < 32; k++) {
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ipLeft[k] = ipByte[k];
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ipRight[k] = ipByte[32 + k];
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}
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for (i = 0; i < 16; i++) {
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for (j = 0; j < 32; j++) {
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tempLeft[j] = ipLeft[j];
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ipLeft[j] = ipRight[j];
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}
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var key = new Array(48);
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for (m = 0; m < 48; m++) {
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key[m] = keys[i][m];
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}
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var tempRight = xor(pPermute(sBoxPermute(xor(expandPermute(ipRight), key))), tempLeft);
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for (n = 0; n < 32; n++) {
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ipRight[n] = tempRight[n];
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}
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}
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var finalData = new Array(64);
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for (i = 0; i < 32; i++) {
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finalData[i] = ipRight[i];
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finalData[32 + i] = ipLeft[i];
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}
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return finallyPermute(finalData);
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}
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function dec(dataByte, keyByte) {
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var keys = generateKeys(keyByte);
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var ipByte = initPermute(dataByte);
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var ipLeft = new Array(32);
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var ipRight = new Array(32);
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var tempLeft = new Array(32);
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var i = 0, j = 0, k = 0, m = 0, n = 0;
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for (k = 0; k < 32; k++) {
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ipLeft[k] = ipByte[k];
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ipRight[k] = ipByte[32 + k];
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}
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for (i = 15; i >= 0; i--) {
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for (j = 0; j < 32; j++) {
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tempLeft[j] = ipLeft[j];
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ipLeft[j] = ipRight[j];
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}
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var key = new Array(48);
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for (m = 0; m < 48; m++) {
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key[m] = keys[i][m];
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}
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var tempRight = xor(pPermute(sBoxPermute(xor(expandPermute(ipRight), key))), tempLeft);
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for (n = 0; n < 32; n++) {
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ipRight[n] = tempRight[n];
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}
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}
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|
|
var finalData = new Array(64);
|
|
for (i = 0; i < 32; i++) {
|
|
finalData[i] = ipRight[i];
|
|
finalData[32 + i] = ipLeft[i];
|
|
}
|
|
return finallyPermute(finalData);
|
|
}
|
|
|
|
function initPermute(originalData) {
|
|
var ipByte = new Array(64);
|
|
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];
|
|
}
|
|
}
|
|
return ipByte;
|
|
}
|
|
|
|
function expandPermute(rightData) {
|
|
var epByte = new Array(48);
|
|
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];
|
|
}
|
|
}
|
|
return epByte;
|
|
}
|
|
|
|
function xor(byteOne, byteTwo) {
|
|
var xorByte = new Array(byteOne.length);
|
|
for (i = 0; i < byteOne.length; i++) {
|
|
xorByte[i] = byteOne[i] ^ byteTwo[i];
|
|
}
|
|
return xorByte;
|
|
}
|
|
|
|
function sBoxPermute(expandByte) {
|
|
|
|
var sBoxByte = new Array(32);
|
|
var binary = "";
|
|
var 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 */
|
|
var 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 */
|
|
var 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 */
|
|
var 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 */
|
|
var 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 */
|
|
var 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 */
|
|
var 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 */
|
|
var 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 (m = 0; m < 8; m++) {
|
|
var 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] = parseInt(binary.substring(0, 1));
|
|
sBoxByte[m * 4 + 1] = parseInt(binary.substring(1, 2));
|
|
sBoxByte[m * 4 + 2] = parseInt(binary.substring(2, 3));
|
|
sBoxByte[m * 4 + 3] = parseInt(binary.substring(3, 4));
|
|
}
|
|
return sBoxByte;
|
|
}
|
|
|
|
function pPermute(sBoxByte) {
|
|
var pBoxPermute = new Array(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];
|
|
return pBoxPermute;
|
|
}
|
|
|
|
function finallyPermute(endByte) {
|
|
var fpByte = new Array(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];
|
|
return fpByte;
|
|
}
|
|
|
|
function getBoxBinary(i) {
|
|
var 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;
|
|
}
|
|
return binary;
|
|
}
|
|
|
|
/*
|
|
* generate 16 keys for xor
|
|
*
|
|
*/
|
|
function generateKeys(keyByte) {
|
|
var key = new Array(56);
|
|
var keys = new Array();
|
|
|
|
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();
|
|
var loop = [1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1];
|
|
|
|
for (i = 0; i < 7; i++) {
|
|
for (j = 0, k = 7; j < 8; j++, k--) {
|
|
key[i * 8 + j] = keyByte[8 * k + i];
|
|
}
|
|
}
|
|
|
|
var i = 0;
|
|
for (i = 0; i < 16; i++) {
|
|
var tempLeft = 0;
|
|
var tempRight = 0;
|
|
for (j = 0; j < loop[i]; j++) {
|
|
tempLeft = key[0];
|
|
tempRight = key[28];
|
|
for (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);
|
|
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];
|
|
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;
|
|
}
|
|
}
|
|
return keys;
|
|
} |