MJ - Day3

app/zadanie01.js

@@ -1,3 +1,31 @@
+const crypto = require('crypto');
+
 const MY_PWD_HASH = '5dca0fc4e306d92b2077ad85e7c4bd87a3e8648e';
 
-//Twój kod
+const tabPasswd = [
+	'??TegoHasła',
+	'CodersLab',
+	'Node.js Szyfruje Pliki',
+	'Zaźółć Gęślą Jaźń',
+	'Moje Haslo 1@3!',
+	'111#$((@)n',
+	'Dzisiaj Szyfruje 83'
+];
+
+const tabAlgorithms = ['sha256', 'sha512', 'md5', 'rmd160'];
+
+const searchPasswd = (tabPasswd, tabAlgorithms, hash) => {
+	let searchPasswd;
+
+	tabPasswd.forEach(p => {
+		tabAlgorithms.forEach(a => {
+			if (crypto.createHmac(a, p).digest('hex') === hash) {
+				searchPasswd = `Szukane hasło to: ${p}. Uzyto algorytmu: ${a}`;
+			};
+		});
+	});
+
+	return searchPasswd ? console.log(searchPasswd) : console.log('Hasło nie zostało odnalezione');
+}
+
+searchPasswd(tabPasswd, tabAlgorithms, MY_PWD_HASH);

app/zadanieDnia1.js

@@ -1 +1,13 @@
-//Twój kod
+const fs = require('fs');
+const crypto = require('crypto');
+
+const path = process.argv.slice(2).toString();
+
+const checksum = path => {
+	fs.readFile(path, 'utf-8', (err, data) => {
+		if (err) return console.log('Błąd odczytu pliku');
+		console.log(crypto.createHmac('sha256', data).digest('hex'));
+	});
+};
+
+checksum(path)

app/zadanieDnia2.js

@@ -1,3 +1,19 @@
+const crypto = require('crypto');
+
 const ENCRYPTED_TEXT = '4f9fa8f98650091c4910f5b597773c0a48278cfb001fe4eb3ff47ada85cbf0ed3dc17016b031e1459e6e4d9b001ab6e102c11e834a98dce9530c9668c47b76ee6f09d075d19a38e48b415e067c6ddcfad0d3526c405a4f4f2fb1e7502f303c40';
 
-//Twój kod
+const tabAlgorithms = ['aes192', 'aes-256-ecb', 'aes-256-cbc', ];
+
+const decodeText = (encodedText, password, tabAlgorithms) => {
+	tabAlgorithms.forEach(x => {
+		const decipher = crypto.createDecipher(x, password);
+		decrypted = decipher.update(encodedText, 'hex', 'utf8');
+		try {
+			console.log(`Prawidłowy algorytm: ${x}\n${decrypted += decipher.final('utf8')}`);
+		} catch(err) {
+			console.log(`Nieprawidłowy algorytm: ${x}`)
+		}
+	})
+};
+
+decodeText(ENCRYPTED_TEXT, 'PysęjkkyDw', tabAlgorithms);