nove verzije

InfosysPublisher/Classes/Encryption.cs

@@ -102,5 +102,32 @@ namespace ResevalnaScanner.Classes
 
             return Encoding.UTF8.GetString(plainTextBytes, 0, byteCount).Trim();
         }
+
+        public const int SALT_SIZE = 24; // size in bytes
+        public const int HASH_SIZE = 256; // size in bytes
+        public const int ITERATIONS = 20000; // number of pbkdf2 iterations
+
+        public static (byte[] Hash, byte[] Salt) CreatePasswordHash(string iText, byte[]? iSalt = null)
+        {
+            byte[] salt;
+            if (iSalt == null)
+            {
+                salt = new byte[SALT_SIZE];
+                using var rng = RandomNumberGenerator.Create();
+                rng.GetBytes(salt);
+            }
+            else
+            {
+                salt = iSalt;
+            }
+
+            var pbkdf2 = new Rfc2898DeriveBytes(iText, salt, ITERATIONS, HashAlgorithmName.SHA256);
+            return (pbkdf2.GetBytes(HASH_SIZE), salt);
+        }
+
+        public static bool CompareByteArrays(byte[] iArray, byte[] iArrayToCompare)
+        {
+            return iArray.Length == iArrayToCompare.Length && !iArray.Where((t, i) => t != iArrayToCompare[i]).ToList().Any();
+        }
     }
 }