Created interfaces waiting for Java declaration

FitConnect/FitConnect.csproj.DotSettings

+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=interfaces/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>
\ No newline at end of file

FitConnect/FunctionalBaseClass.cs

@@ -75,7 +75,7 @@ public class FitConnectEndpoints {
     );
 }
 
-public class FunctionalBaseClass {
+public abstract class FunctionalBaseClass {
     private readonly ILogger? logger;
     public FitConnectEndpoints Endpoints { get; }
 
@@ -143,21 +143,3 @@ public class FunctionalBaseClass {
     }
 }
 
-public class SecurityEventToken {
-
-}
-
-public interface IBaseFunctionality {
-    Task<OAuthAccessToken> GetTokenAsync(string clientId, string clientSecret,
-        string? scope = null);
-    
-    Task<SecurityEventToken> GetSetDataAsync();
-    
-    
-}
-
-public interface ISender {
-}
-
-public interface ISubscriber {
-}

FitConnect/Interfaces/IBaseFunctionality.cs

+using FitConnect.Models;
+
+namespace FitConnect;
+
+public interface IBaseFunctionality {
+    Task<OAuthAccessToken> GetTokenAsync(string clientId, string clientSecret,
+        string? scope = null);
+
+    Task<SecurityEventToken> GetSetDataAsync();
+
+    // Receive SecurityEventToken and check signature
+}
\ No newline at end of file

FitConnect/Interfaces/ISender.cs

+namespace FitConnect;
+
+public interface ISender : IBaseFunctionality {
+    // Check public keys
+    Task<bool> CheckPublicKeyAsync(string publicKey);
+
+    // Encrypt Data (Fachdaten)
+    Task<string> EncryptDataAsync(string data, string publicKey);
+
+    // Encrypt attachments (Anhänge)
+    Task<string> EncryptAttachmentAsync(string attachment, string publicKey);
+
+    // Create Metadata incl. Hash
+    Task<string> CreateMetadataAsync(string data, string attachment, string publicKey);
+}
\ No newline at end of file

FitConnect/Interfaces/ISubscriber.cs

+namespace FitConnect;
+
+public interface ISubscriber : IBaseFunctionality {
+    /// <summary>
+    /// Decrypt Data (Fachdaten)
+    /// </summary>
+    /// <param name="data">(Fachdaten)</param>
+    /// <param name="privateKey">Your private key for decryption</param>
+    /// <returns></returns>
+    Task<string> DecryptDataAsync(string data, string privateKey);
+
+    // Decrypt attachments (Anhänge)
+    Task<string> DecryptAttachmentAsync(string attachment, string privateKey);
+
+    // Check Metadata against JSON-Scheme
+    Task<bool> CheckMetadataAsync(string metadata);
+
+    // Check Hash from Metadata
+    Task<bool> CheckHashAsync(string metadata);
+
+    // Create SecurityEventToken and signature
+    Task<SecurityEventToken> CreateSecurityEventTokenAsync(string data, string attachment,
+        string privateKey);
+}
\ No newline at end of file

FitConnect/Models/SecurityEventToken.cs

+namespace FitConnect;
+
+public class SecurityEventToken {
+}

FitConnect/Sender.cs

@@ -6,7 +6,4 @@ public class Sender : FunctionalBaseClass {
     public Sender(ILogger? logger, FitConnectEndpoints endpoints) : base(logger,endpoints) {
     }
 
-    internal async Task EncryptData() {
-        
-    }
 }
\ No newline at end of file