refactor(IRSADecryptor): Umbenennung in IAsymmetricPrivateKey

DigitalData.Core.Security/Cryptographer/RSAKeyBase.cs

@@ -0,0 +1,38 @@
+using DigitalData.Core.Abstractions.Security;
+using Microsoft.IdentityModel.Tokens;
+using System.Reflection;
+using System.Security.Cryptography;
+
+namespace DigitalData.Core.Security.Cryptographer
+{
+    public class RSAKeyBase : IAsymmetricKey
+    {
+        public virtual string Pem { get; init; }
+                
+        public RSAEncryptionPadding Padding { get; init; } = RSAEncryptionPadding.OaepSHA256;
+
+        // TODO: add as json converter to IConfigurIConfiguration.Config
+        public string PaddingName
+        {
+            get => Padding.ToString();
+            init => Padding = typeof(RSAEncryptionPadding).GetProperty(value, BindingFlags.Public | BindingFlags.Static)?.GetValue(null) as RSAEncryptionPadding ?? throw new ArgumentException($"Padding '{value}' not found.");
+        }
+
+        protected virtual RSA RSA { get; } = RSA.Create();
+
+        public string Issuer { get; init; } = string.Empty;
+
+        public string Audience { get; init; } = string.Empty;
+
+        private readonly Lazy<RsaSecurityKey> _lazyRsaSecurityKey;
+
+        public RsaSecurityKey RsaSecurityKey => _lazyRsaSecurityKey.Value;
+
+#pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+        internal RSAKeyBase()
+        {
+            _lazyRsaSecurityKey = new(() => new RsaSecurityKey(RSA));
+        }
+#pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
+    }
+}