From c03f39c1a9202ee01dc1afd67cef95c8edd10189 Mon Sep 17 00:00:00 2001
From: Developer 02 <developer02@didaloghe.onmicrosoft.com>
Date: Thu, 5 Dec 2024 01:15:59 +0100
Subject: [PATCH] =?UTF-8?q?feat(RSACryptographer):=20Verfall=20hinzugef?=
 =?UTF-8?q?=C3=BCgt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 DigitalData.Core.Security/RSACryptographer.cs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/DigitalData.Core.Security/RSACryptographer.cs b/DigitalData.Core.Security/RSACryptographer.cs
index 55161cc..ed6c72d 100644
--- a/DigitalData.Core.Security/RSACryptographer.cs
+++ b/DigitalData.Core.Security/RSACryptographer.cs
@@ -11,6 +11,21 @@ namespace DigitalData.Core.Security
 
         protected virtual RSA RSA { get; } = RSA.Create();
 
+        private DateOnly? _expiration;
+
+        public DateOnly? Expiration
+        {
+            get => _expiration;
+            init
+            {
+                
+                if (value <= DateOnly.FromDateTime(DateTime.Now))
+                    throw new InvalidOperationException("The expiration date has already passed.");
+
+                _expiration = value;
+            }
+        }
+
         internal RSACryptographer() { }
     }
 }
\ No newline at end of file