From 4c379c2d4d7531a9e99195e624de9d2f821ae1d4 Mon Sep 17 00:00:00 2001
From: Developer 02 <developer02@didaloghe.onmicrosoft.com>
Date: Mon, 18 Nov 2024 17:56:21 +0100
Subject: [PATCH] =?UTF-8?q?feat(RSAExtensions)=20:=20Methoden=20hinzugef?=
 =?UTF-8?q?=C3=BCgt,=20um=20einen=20Verschl=C3=BCsseler=20anhand=20seines?=
 =?UTF-8?q?=20Ausstellers=20und=20seiner=20Zielgruppe=20aus=20einem=20W?=
 =?UTF-8?q?=C3=B6rterbuch=20zu=20erhalten?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../DigitalData.Core.Security.Extensions.csproj          | 4 ++++
 DigitalData.Core.Security.Extensions/RSAExtensions.cs    | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/DigitalData.Core.Security.Extensions/DigitalData.Core.Security.Extensions.csproj b/DigitalData.Core.Security.Extensions/DigitalData.Core.Security.Extensions.csproj
index a06fc69..b3d5f11 100644
--- a/DigitalData.Core.Security.Extensions/DigitalData.Core.Security.Extensions.csproj
+++ b/DigitalData.Core.Security.Extensions/DigitalData.Core.Security.Extensions.csproj
@@ -6,4 +6,8 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\DigitalData.Core.Abstractions\DigitalData.Core.Abstractions.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/DigitalData.Core.Security.Extensions/RSAExtensions.cs b/DigitalData.Core.Security.Extensions/RSAExtensions.cs
index 344c7f6..cd6d68a 100644
--- a/DigitalData.Core.Security.Extensions/RSAExtensions.cs
+++ b/DigitalData.Core.Security.Extensions/RSAExtensions.cs
@@ -1,4 +1,5 @@
-using System.Security.Cryptography;
+using DigitalData.Core.Abstractions.Security;
+using System.Security.Cryptography;
 
 namespace DigitalData.Core.Security.Extensions
 {
@@ -10,5 +11,11 @@ namespace DigitalData.Core.Security.Extensions
             rsa.ImportFromPem(pem);
             return rsa;
         }
+
+        public static bool TryGetEncryptor(this IDictionary<string, IRSAEncryptor> pairs, string issuer, string audience, out IRSAEncryptor? encryptor) 
+            => pairs.TryGetValue($"{issuer}:{audience}", out encryptor);
+
+        public static IRSAEncryptor? GetEncryptor(this IDictionary<string, IRSAEncryptor> pairs, string issuer, string audience) 
+            => pairs.TryGetEncryptor(issuer: issuer, audience: audience, out var encryptor) ? encryptor : null;
     }
 }
\ No newline at end of file