feat: BCrypt加密方法添加Salt生成和检查逻辑。

framework/NPin.Framework.Core/Crypt/BCrypt/BCrypt.cs

@@ -1,4 +1,5 @@
-using System.Text;
+using System.Security.Cryptography;
+using System.Text;
 
 namespace NPin.Framework.Core.Crypt.BCrypt;
 
@@ -11,4 +12,29 @@ public static class BCrypt
 
         return Org.BouncyCastle.Crypto.Generators.BCrypt.Generate(passBytes, saltBytes, cost);
     }
+
+    public static string GenerateSalt()
+    {
+        var buf = new byte[16];
+        using var rand = RandomNumberGenerator.Create();
+        rand.GetBytes(buf);
+
+        return Convert.ToBase64String(buf);
+    }
+
+    /// <summary>
+    /// 检查密码是否正确
+    /// 通过再次生成一次密码匹配
+    /// </summary>
+    /// <param name="encrypt"></param>
+    /// <param name="password"></param>
+    /// <param name="salt"></param>
+    /// <param name="cost"></param>
+    /// <returns></returns>
+    public static bool Check(string encrypt, string password, string salt, int cost)
+    {
+        var passStr = Generate(password, salt, cost).ToString();
+
+        return string.Equals(encrypt, passStr);
+    }
 }