Refactoring, database structure changed

WatchIt.WebAPI/Helpers/PasswordHelpers.cs

@@ -0,0 +1,50 @@
+using System.Security.Cryptography;
+using System.Text;
+using SimpleToolkit.Extensions;
+using WatchIt.DTO.Models.Controllers.Accounts;
+
+namespace WatchIt.WebAPI.Helpers;
+
+public static class PasswordHelpers
+{
+    #region CONSTANTS
+
+    private const string RandomPasswordCharacters = "QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm1234567890!@#$%^&*()-_=+[{]};:'\"\\|,<.>/?";
+
+    #endregion
+    
+    
+    
+    #region PUBLIC METHODS
+
+    public static PasswordData GeneratePasswordData(string password)
+    {
+        string leftSalt = StringExtensions.CreateRandom(20, RandomPasswordCharacters);
+        string rightSalt = StringExtensions.CreateRandom(20, RandomPasswordCharacters);
+        byte[] hash = ComputeHash(password, leftSalt, rightSalt);
+        return new PasswordData
+        {
+            LeftSalt = leftSalt,
+            RightSalt = rightSalt,
+            PasswordHash = hash,
+        };
+    }
+
+    public static byte[] ComputeHash(string password, string leftSalt, string rightSalt)
+    {
+        string stringToHash = $"{leftSalt}{password}{rightSalt}";
+        byte[] encodedString = Encoding.UTF8.GetBytes(stringToHash);
+        byte[] hash = SHA512.HashData(encodedString);
+        return hash;
+    }
+
+    public static bool ValidatePassword(string password, PasswordData passwordData)
+    {
+        byte[] checkedHash = ComputeHash(password, passwordData.LeftSalt, passwordData.RightSalt);
+        byte[] actualHash = passwordData.PasswordHash;
+        bool result = checkedHash.SequenceEqual(actualHash);
+        return result;
+    }
+    
+    #endregion
+}