Add password hasher

BusinessLogic/Tools/PasswordHasher.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BusinessLogic.Tools
+{
+	internal class PasswordHasher
+	{
+		/// <summary>
+		/// Хеширует с использование SHA256
+		/// </summary>
+		/// <param name="password">Пароль</param>
+		/// <returns>Хеш пароля</returns>
+		public static string Hash(string password)
+		{
+			using (SHA256 sha256 = SHA256.Create())
+			{
+				byte[] bytes = sha256.ComputeHash(Encoding.UTF8.GetBytes(password));
+				return Convert.ToBase64String(bytes);
+			}
+		}
+
+		/// <summary>
+		/// Проверяет на соответствие пароля и его хеша
+		/// </summary>
+		/// <param name="password">Пароль</param>
+		/// <param name="passHash">Хеш пароля</param>
+		/// <returns></returns>
+		public static bool Verify(string password, string passHash)
+		{
+			var hash = Hash(password);
+			return hash == passHash;
+		}
+	}
+}