Challenge done

.gitignore

@@ -0,0 +1,3 @@
+.idea
+*.*~
+node_modules

app/zadanie01.js

@@ -1,3 +1,23 @@
+const crypto = require('crypto');
+
 const MY_PWD_HASH = '5dca0fc4e306d92b2077ad85e7c4bd87a3e8648e';
 
-//Twój kod
+const password = ['??TegoHasła', 'CodersLab', 'Node.js Szyfruje Pliki', 'Zaźółć Gęślą Jaźń', 'Moje Haslo 1@3!', '111#$((@)n', 'Dzisiaj Szyfruje 83'];
+
+const algorithms = ['sha256', 'sha512', 'md5', 'rmd160'];
+
+let whichPassword = (password, algorithms, hash) => {
+    let correctPassword;
+
+    password.forEach(p => {
+        algorithms.forEach(a => {
+            if (crypto.createHmac(a, p).digest('hex') === hash) {
+                correctPassword = `Our password is: ${p}. Our algorithm is: ${a}`;
+            };
+        });
+    });
+
+    return whichPassword ? console.log(correctPassword) : console.log('Password not find');
+};
+
+whichPassword(password, algorithms, MY_PWD_HASH);

app/zadanieDnia1.js

@@ -1 +1,19 @@
-//Twój kod
+const fs = require('fs');
+const crypto = require('crypto');
+
+function ReadAndCrypto(fileName) {
+    fs.readFile(fileName, 'utf8', (err, data) => {
+        if (err === null){
+            console.log("Poprawnie odczytano plik. \n");
+            const hash = crypto.createHmac('sha256', data)
+                .digest('hex');
+            console.log(hash);
+
+
+        } else {
+            console.log('Błąd podczas odczytu pliku!', err);
+        }
+    });
+}
+
+ReadAndCrypto(process.argv[2]);

app/zadanieDnia2.js

@@ -1,3 +1,19 @@
 const ENCRYPTED_TEXT = '4f9fa8f98650091c4910f5b597773c0a48278cfb001fe4eb3ff47ada85cbf0ed3dc17016b031e1459e6e4d9b001ab6e102c11e834a98dce9530c9668c47b76ee6f09d075d19a38e48b415e067c6ddcfad0d3526c405a4f4f2fb1e7502f303c40';
+const algorithms = ['aes192', 'aes-256-cbc', 'aes-256-ecb'];
+const password = 'PysęjkkyDw';
+const crypto = require('crypto');
+
+function decodeText(text, password, algorithm){
+    const decipher = crypto.createDecipher(algorithm, password);
+
+    let decrypted = decipher.update(text, 'hex', 'utf8');
+    decrypted += decipher.final('utf8');
+
+    console.log(decrypted);
+    return decrypted;
+}
+
+decodeText(ENCRYPTED_TEXT, password, 'aes-256-ecb');
+
+
 
-//Twój kod