Rework the hashing Helpers

lib/utils/Hashing.dart

@@ -3,33 +3,43 @@ import 'dart:convert';
 import 'package:crypto/crypto.dart';
 
 class Hashing {
+  /// This will generate the md5 bytes and hash it using #bytes2Hash
   static String md5Hash(String input) {
-    var hash = md5.convert(utf8.encode(input)).bytes;
-    String x = "";
-    for (int byte in hash) {
-      x += byte.toRadixString(16).padLeft(2, '0');
-    }
-
-    return x;
+    return bytes2Hash(md5Sum(input));
   }
 
+  /// This will generate the Sha1 bytes and hash it using #bytes2Hash
   static String sha1Hash(String input) {
-    var hash = sha1.convert(utf8.encode(input)).bytes;
+    return bytes2Hash(sha1Sum(input));
+  }
+
+  /// This will generate the Sha256 bytes and hash it using #bytes2Hash.
+  static String sha256Hash(String input) {
+    return bytes2Hash(sha256Sum(input));
+  }
+
+  /// This function takes a list of bytes and returns a hash string
+  static String bytes2Hash(List<int> bytes) {
     String x = "";
-    for (int byte in hash) {
+    for (int byte in bytes) {
       x += byte.toRadixString(16).padLeft(2, '0');
     }
 
     return x;
   }
 
-  static String sha256Hash(String input) {
-    var hash = sha256.convert(utf8.encode(input)).bytes;
-    String x = "";
-    for (int byte in hash) {
-      x += byte.toRadixString(16).padLeft(2, '0');
-    }
+  /// This function returns the bytes instead of a hash string
+  static List<int> md5Sum(String input) {
+    return md5.convert(utf8.encode(input)).bytes;
+  }
 
-    return x;
+  /// This functions returns the bytes instead of a hash string
+  static List<int> sha1Sum(String input) {
+    return sha1.convert(utf8.encode(input)).bytes;
+  }
+
+  /// This function returns the bytes instead of a hash string
+  static List<int> sha256Sum(String input) {
+    return sha256.convert(utf8.encode(input)).bytes;
   }
 }