feat(Abstraktionen.Sicherheit): Schnittstellen für IRSACryptographer, IRSADecryptor und IRSAEncryptor erstellt.

DigitalData.Core.Abstractions/Security/IRSACryptographer.cs

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+using System.Security.Cryptography;
+
+namespace DigitalData.Core.Abstractions.Security
+{
+    public interface IRSACryptographer
+    {   
+        public RSAEncryptionPadding Padding { get; init; }
+    }
+}

DigitalData.Core.Abstractions/Security/IRSADecryptor.cs

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+namespace DigitalData.Core.Abstractions.Security
+{
+    public interface IRSADecryptor : IRSACryptographer
+    {
+        public string PrivateKeyPem { init; }
+
+        public IRSAEncryptor Encryptor { get; }
+
+        public byte[] Decrypt(byte[] data);
+
+        public string Decrypt(string data);
+    }
+}

DigitalData.Core.Abstractions/Security/IRSAEncryptor.cs

@@ -0,0 +1,13 @@
+namespace DigitalData.Core.Abstractions.Security
+{
+    public interface IRSAEncryptor : IRSACryptographer
+    {
+        public string PublicKeyPem { get; init; }
+
+        public byte[] Encrypt(byte[] data);
+
+        public string Encrypt(string data);
+
+        public bool Verify(string data, string signature) => Encrypt(data) == signature;
+    }
+}