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Day 3 #10

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37 changes: 36 additions & 1 deletion app/zadanie01.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,38 @@
const crypto = require('crypto');

const MY_PWD_HASH = '5dca0fc4e306d92b2077ad85e7c4bd87a3e8648e';

//Twój kod
const hashArr = ['sha256', 'sha512', 'md5' , 'rmd160'];

const texts = ['??TegoHasła',
'CodersLab',
'Node.js Szyfruje Pliki',
'Zaźółć Gęślą Jaźń',
'Moje Haslo 1@3!',
'111#$((@)n',
'Dzisiaj Szyfruje 83']

let unscript = () => {

let hashAlgoritm = '';
let hash = '';

for(index in hashArr){
hashAlgoritm = hashArr[index];

for(index in texts){

hash = crypto.createHmac(hashAlgoritm, texts[index]).digest('hex');

if(hash === MY_PWD_HASH){

console.log(`Answer: ${texts[index]}`);
}

}

}
}
unscript();


35 changes: 34 additions & 1 deletion app/zadanieDnia1.js
Original file line number Diff line number Diff line change
@@ -1 +1,34 @@
//Twój kod
const fs = require('fs');
const crypto = require('crypto');
const exerHash = '4f7ae6569b55cb6275423ca1cdf31475e607da1d5204c110a58fb480c96e6eca'

let read = (filePath) => {

return new Promise((resolve, reject) => {

fs.readFile(filePath, 'utf-8', (err, data) => {
if (err === null){
resolve(data)
} else {
throw err;
}
});
});
}

let hashText = (text) => {
hash = crypto.createHmac('sha256', text).digest('hex');
console.log(hash);
}


let filePath = '';

process.argv.forEach((val, index) => {

if(index === 2){
filePath = val;
read(filePath).then((data) => { hashText(data) } );
};

});
40 changes: 39 additions & 1 deletion app/zadanieDnia2.js
Original file line number Diff line number Diff line change
@@ -1,3 +1,41 @@
const crypto = require('crypto');

const ENCRYPTED_TEXT = '4f9fa8f98650091c4910f5b597773c0a48278cfb001fe4eb3ff47ada85cbf0ed3dc17016b031e1459e6e4d9b001ab6e102c11e834a98dce9530c9668c47b76ee6f09d075d19a38e48b415e067c6ddcfad0d3526c405a4f4f2fb1e7502f303c40';

//Twój kod
const text = 'Pobawmy się jak komputerowy Detektyw';

const algorithm = ['aes192', 'aes-256-cbc', 'aes-256-ecb'];

const getPassword = (text) => {
let textArr = text.split(' ');
let pass = '';

for(index in textArr){
let word = textArr[index];
pass += word[0] + word[word.length - 1];
}
return pass;
}

let pass = getPassword(text);

const decodeText = (encodedText, password, algorithm) => {

for(index in algorithm){
const decipher = crypto.createDecipher(algorithm[index], password);
let decrypted = decipher.update(encodedText, 'hex', 'utf8');

try {
decrypted += decipher.final('utf8');
console.log(decrypted);
} catch (err) {
console.log(`Wystąpił błąd ${err.message}`);
}

}

}

decodeText(ENCRYPTED_TEXT, pass, algorithm);