Migration to a ServiceWorker for most tasks.

Implementation of basic PatchComplianceTask. First real iteration, basic/raw asf.

OversightService/EncryptionHelper.cs

@@ -0,0 +1,36 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace OversightService
+{
+    public class EncryptionHelper
+    {
+        private static readonly byte[] Key = Encoding.UTF8.GetBytes("HWJGbwmF2pWdXySDExMNEbJSrXn0YCBF"); // 32 bytes for AES-256
+        private static readonly byte[] IV = Encoding.UTF8.GetBytes("VWYRtYCfch0sKs6k"); // 16 bytes
+
+        public static string EncryptData(string plainText)
+        {
+            using (Aes aes = Aes.Create())
+            {
+                aes.Key = Key;
+                aes.IV = IV;
+                aes.Mode = CipherMode.CBC;
+                aes.Padding = PaddingMode.PKCS7;
+
+                using (MemoryStream ms = new MemoryStream())
+                using (CryptoStream cs = new CryptoStream(ms, aes.CreateEncryptor(), CryptoStreamMode.Write))
+                {
+                    using (StreamWriter sw = new StreamWriter(cs, new UTF8Encoding(false))) // Disable BOM
+                    {
+                        sw.Write(plainText);
+                    }
+                    byte[] encryptedBytes = ms.ToArray();
+                    string encryptedBase64 = Convert.ToBase64String(encryptedBytes);
+                    return encryptedBase64;
+                }
+            }
+        }
+    }
+}