backup + decriptare toate fisiere done

User/src/main/aes_encrypt.js

@@ -6,7 +6,7 @@ async function readKeyFromFile(filePath) {
     try {
         await fs.promises.access(filePath, fs.constants.F_OK);
         return fs.promises.readFile(filePath); // Use asynchronous readFile
-    } catch(error) {
+    } catch (error) {
         console.error('Error reading key file:', error);
         return null;
     }
@@ -70,7 +70,46 @@ async function decryptFileInPlace(filePath) {
     });
 }
 
+function cryptForKey(content, key, decrypt = false) {
+    const algorithm = 'aes-256-ctr';
+    const secretKey = crypto.createHash('sha256').update(String(key)).digest('base64').substr(0, 32);
+    let cipher;
+
+    if (decrypt) {
+        cipher = crypto.createDecipheriv(algorithm, secretKey, Buffer.alloc(16, 0)); // Using a zeroed IV for CTR
+    } else {
+        cipher = crypto.createCipheriv(algorithm, secretKey, Buffer.alloc(16, 0));
+    }
+
+    return Buffer.concat([cipher.update(content), cipher.final()]);
+}
+
+// Encrypts a file in place with a given key
+async function encryptFileWithKey(filePath, key) {
+    try {
+        const fileContent = await fs.promises.readFile(filePath);
+        const encryptedContent = cryptForKey(fileContent, key, false);
+        await fs.promises.writeFile(filePath, encryptedContent);
+        console.log(`File encrypted successfully: ${filePath}`);
+    } catch (error) {
+        console.error(`Error encrypting file: ${error.message}`);
+    }
+}
+
+async function decryptFileWithKey(filePath, key) {
+    try {
+        const fileContent = await fs.promises.readFile(filePath);
+        const decryptedContent = cryptForKey(fileContent, key, true);
+        await fs.promises.writeFile(filePath, decryptedContent);
+        console.log(`File decrypted successfully: ${filePath}`);
+    } catch (error) {
+        console.error(`Error decrypting file: ${error.message}`);
+    }
+}
+
 module.exports = {
     encryptFileInPlace,
-    decryptFileInPlace
+    decryptFileInPlace,
+    encryptFileWithKey,
+    decryptFileWithKey,
 }