Initial commit

classes/EncryptionHelper.js

@@ -0,0 +1,32 @@
+const crypto = require('node:crypto');
+
+class EncryptionHelper {
+    static encryptDataAESGCM(plainText, key) {
+        try {
+            const iv = crypto.randomBytes(12);
+            const cipher = crypto.createCipheriv('aes-256-gcm', key, iv);
+
+            const encryptedText = Buffer.concat([cipher.update(plainText, 'utf8'), cipher.final()]);
+            const authTag = cipher.getAuthTag();
+
+            return Buffer.concat([iv, encryptedText, authTag]);
+        } catch (error) {
+            console.error("Encryption failed:", error);
+            return null;
+        }
+    }
+
+    static makeEncryptedParameter(username, key) {
+        const timestamp = new Date().toISOString().replace('T', ' ').split('.')[0];
+        const plainText = `${timestamp} ${username}`;
+
+        const hash = crypto.createHash('sha256').update(key, 'utf8').digest();
+        const encryptedData = this.encryptDataAESGCM(plainText, hash);
+
+        const base64Encoded = encryptedData.toString('base64');
+
+        return base64Encoded;
+    }
+}
+
+module.exports = EncryptionHelper