done

app/zadanie01.js

@@ -1,3 +1,27 @@
 const MY_PWD_HASH = '5dca0fc4e306d92b2077ad85e7c4bd87a3e8648e';
 
-//Twój kod
+//Twój kod
+
+const crypto = require('crypto');
+
+const passwords = ['??TegoHasła',
+    'CodersLab',
+    'Node.js Szyfruje Pliki',
+    'Zaźółć Gęślą Jaźń',
+    'Moje Haslo 1@3!',
+    '111#$((@)n',
+    'Dzisiaj Szyfruje 83'
+]
+
+const algorithms = ['sha256', 'sha512', 'md5', 'rmd160'];
+
+algorithms.forEach(algoritm => {
+    passwords.forEach(pasword => {
+        let hash = crypto.createHmac(algoritm, pasword)
+            .digest('hex');
+
+        if (MY_PWD_HASH === hash) {
+            console.log(`algoritm - ${algoritm}, pasword - ${pasword}`);
+        }
+    })
+})

app/zadanieDnia1.js

@@ -1 +1,20 @@
-//Twój kod
+//Twój kod
+const fs = require('fs');
+const crypto = require('crypto');
+
+const codeFunc = (linkToFile) => {
+    fs.readFile(linkToFile, 'utf8', (err, data) => {
+        if (err === null) {
+            console.log(data);
+            const hash = crypto.createHmac('sha256', data)
+                .digest('hex');
+            console.log(hash);
+        } else {
+            console.log(err);
+        }
+    })
+}
+
+const linkToSomeText = './data/zadanieDnia1/testFile.txt';
+
+codeFunc(linkToSomeText);

app/zadanieDnia2.js

@@ -1,3 +1,16 @@
 const ENCRYPTED_TEXT = '4f9fa8f98650091c4910f5b597773c0a48278cfb001fe4eb3ff47ada85cbf0ed3dc17016b031e1459e6e4d9b001ab6e102c11e834a98dce9530c9668c47b76ee6f09d075d19a38e48b415e067c6ddcfad0d3526c405a4f4f2fb1e7502f303c40';
 
-//Twój kod
+//Twój kod
+
+const crypto = require('crypto');
+const algorithms = ['aes192', 'aes-256-cbc', 'aes-256-ecb'];
+const pass = 'PysęjkkyDw';
+function decodeText(encodedText, password, algorithm) {
+    const decipher = crypto.createDecipher(algorithm, password);
+
+    let decrypted = decipher.update(encodedText, 'hex', 'utf8');
+    decrypted += decipher.final('utf8');
+    return decrypted;
+}
+
+decodeText(ENCRYPTED_TEXT, pass, 'aes-256-ecb');