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npx standard --fix

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cclauss
2020-05-03 09:05:12 +02:00
parent e62ad2f73e
commit 856dc2f63c
47 changed files with 2240 additions and 2371 deletions
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233
Ciphers/keyFinder.js
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@ -1,157 +1,122 @@
/******************************************************
Find and retrieve the encryption key automatically
Find and retrieve the encryption key automatically
Note: This is a draft version, please help to modify, Thanks!
******************************************************/
function keyFinder(str){ // str is used to get the input of encrypted string
const wordbank =["I ","You ","We ","They ","He ","She ","It "," the ","The "," of "," is ","Is "," am ","Am "," are ","Are "," have ","Have "," has ","Has "," may ","May "," be ","Be "];
//let wordbankelementCounter = 0;
//let key = 0; // return zero means the key can not be found
let inStr = str.toString(); //convert the input to String
let outStr = ""; // store the output value
let outStrElement = ""; // temporary store the word inside the outStr, it is used for comparison
for (let k=0; k<26; k++){ //try the number of key shifted, the sum of character from a-z or A-Z is 26
outStr = caesarCipherEncodeAndDecodeEngine(inStr,k); // use the encrytpion engine to decrypt the input string
function keyFinder (str) { // str is used to get the input of encrypted string
const wordbank = ['I ', 'You ', 'We ', 'They ', 'He ', 'She ', 'It ', ' the ', 'The ', ' of ', ' is ', 'Is ', ' am ', 'Am ', ' are ', 'Are ', ' have ', 'Have ', ' has ', 'Has ', ' may ', 'May ', ' be ', 'Be ']
// let wordbankelementCounter = 0;
// let key = 0; // return zero means the key can not be found
const inStr = str.toString() // convert the input to String
let outStr = '' // store the output value
let outStrElement = '' // temporary store the word inside the outStr, it is used for comparison
for (let k = 0; k < 26; k++) { // try the number of key shifted, the sum of character from a-z or A-Z is 26
outStr = caesarCipherEncodeAndDecodeEngine(inStr, k) // use the encrytpion engine to decrypt the input string
//loop through the whole input string
for ( let s=0; s < outStr.length; s++){
// loop through the whole input string
for (let s = 0; s < outStr.length; s++) {
for (let i = 0; i < wordbank.length; i++) {
// initialize the outStrElement which is a temp output string for comparison,
// use a loop to find the next digit of wordbank element and compare with outStr's digit
for (let w = 0; w < wordbank[i].length; w++) {
outStrElement += outStr[s + w]
}
for ( let i=0; i < wordbank.length; i++){
// console.log( k + outStrElement + wordbank[i] );//debug
// initialize the outStrElement which is a temp output string for comparison,
// use a loop to find the next digit of wordbank element and compare with outStr's digit
for ( let w=0; w < wordbank[i].length; w++){
outStrElement += outStr[ s + w ];
}
// this part need to be optimize with the calculation of the number of occurance of word's probabilities
// linked list will be used in the next stage of development to calculate the number of occurace of the key
if (wordbank[i] == outStrElement) {
return k // return the key number if founded
}
//console.log( k + outStrElement + wordbank[i] );//debug
// this part need to be optimize with the calculation of the number of occurance of word's probabilities
// linked list will be used in the next stage of development to calculate the number of occurace of the key
if (wordbank[i] == outStrElement){
return k; // return the key number if founded
}
outStrElement = ""; //reset the temp word
} // end for ( let i=0; i < wordbank.length; i++)
}
}
return 0; // return 0 if found nothing
outStrElement = '' // reset the temp word
} // end for ( let i=0; i < wordbank.length; i++)
}
}
return 0 // return 0 if found nothing
}
/* this sub-function is used to assist the keyfinder to find the key */
function caesarCipherEncodeAndDecodeEngine(inStr, numShifted)
{
let shiftNum = numShifted;
let charCode = 0;
let outStr = "";
let shftedcharCode = 0;
let result = 0;
function caesarCipherEncodeAndDecodeEngine (inStr, numShifted) {
const shiftNum = numShifted
let charCode = 0
let outStr = ''
let shftedcharCode = 0
let result = 0
for (let i=0; i<inStr.length; i++){
for (let i = 0; i < inStr.length; i++) {
charCode = inStr[i].charCodeAt()
shftedcharCode = charCode + shiftNum
result = charCode
charCode = inStr[i].charCodeAt();
shftedcharCode = charCode + shiftNum;
result = charCode;
if ((charCode >= 48 && charCode <= 57)) {
if (shftedcharCode < 48) {
let diff = Math.abs(48 - 1 - shftedcharCode) % 10
if ( (charCode>=48 && charCode<=57))
{
if ( shftedcharCode < 48 ){
while (diff >= 10) {
diff = diff % 10
}
document.getElementById('diffID').innerHTML = diff
let diff = Math.abs(48-1-shftedcharCode)%10;
shftedcharCode = 57 - diff
while( diff >= 10){
diff = diff%10;
}
document.getElementById("diffID").innerHTML = diff;
result = shftedcharCode
} else if (shftedcharCode >= 48 && shftedcharCode <= 57) {
result = shftedcharCode
} else if (shftedcharCode > 57) {
let diff = Math.abs(57 + 1 - shftedcharCode) % 10
shftedcharCode = 57-diff;
result = shftedcharCode;
}
while (diff >= 10) {
diff = diff % 10
}
document.getElementById('diffID').innerHTML = diff
else if ( shftedcharCode>=48 && shftedcharCode<=57 ){
result = shftedcharCode;
}
shftedcharCode = 48 + diff
else if ( shftedcharCode > 57 ){
result = shftedcharCode
}
} else if ((charCode >= 65 && charCode <= 90)) {
if (shftedcharCode <= 64) {
let diff = Math.abs(65 - 1 - shftedcharCode) % 26
let diff = Math.abs(57+1-shftedcharCode)%10;
while ((diff % 26) >= 26) {
diff = diff % 26
}
shftedcharCode = 90 - diff
result = shftedcharCode
} else if (shftedcharCode >= 65 && shftedcharCode <= 90) {
result = shftedcharCode
} else if (shftedcharCode > 90) {
let diff = Math.abs(shftedcharCode - 1 - 90) % 26
while( diff >= 10){
diff = diff%10;
}
document.getElementById("diffID").innerHTML = diff;
while ((diff % 26) >= 26) {
diff = diff % 26
}
shftedcharCode = 65 + diff
result = shftedcharCode
}
} else if ((charCode >= 97 && charCode <= 122)) {
if (shftedcharCode <= 96) {
let diff = Math.abs(97 - 1 - shftedcharCode) % 26
shftedcharCode = 48+diff;
while ((diff % 26) >= 26) {
diff = diff % 26
}
shftedcharCode = 122 - diff
result = shftedcharCode
} else if (shftedcharCode >= 97 && shftedcharCode <= 122) {
result = shftedcharCode
} else if (shftedcharCode > 122) {
let diff = Math.abs(shftedcharCode - 1 - 122) % 26
result = shftedcharCode;
}
}
else if ( (charCode>=65 && charCode<=90) )
{
if (shftedcharCode <=64 ){
let diff = Math.abs(65-1-shftedcharCode)%26;
while( (diff%26) >= 26){
diff = diff%26;
}
shftedcharCode = 90-diff;
result = shftedcharCode;
}
else if ( shftedcharCode>=65 && shftedcharCode<=90 ){
result = shftedcharCode;
}
else if (shftedcharCode>90 ){
let diff = Math.abs(shftedcharCode-1-90)%26;
while( (diff%26) >= 26){
diff = diff%26;
}
shftedcharCode = 65+diff;
result = shftedcharCode;
}
}
else if ( (charCode>=97 && charCode<=122))
{
if ( shftedcharCode<=96 ){
let diff = Math.abs(97-1-shftedcharCode)%26;
while( (diff%26) >= 26){
diff = diff%26;
}
shftedcharCode = 122-diff;
result = shftedcharCode;
}
else if ( shftedcharCode>=97 && shftedcharCode<=122 ){
result = shftedcharCode;
}
else if (shftedcharCode>122 ){
let diff = Math.abs(shftedcharCode-1-122)%26;
while( (diff%26) >= 26){
diff = diff%26;
}
shftedcharCode = 97+diff;
result = shftedcharCode;
}
}
outStr = outStr + String.fromCharCode(parseInt(result));
}
return outStr;
while ((diff % 26) >= 26) {
diff = diff % 26
}
shftedcharCode = 97 + diff
result = shftedcharCode
}
}
outStr = outStr + String.fromCharCode(parseInt(result))
}
return outStr
}