Implement IKeyManager

Akari.Prototype.Server/Services/IKeyManager.cs

@@ -1,11 +1,19 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Security.Cryptography;
 using System.Threading.Tasks;
 
 namespace Akari.Prototype.Server.Services
 {
     public interface IKeyManager
     {
+        public bool AddFingerprint(string applicationName, string fingerprintName, AesGcm fingerprintKey);
+
+        public void Clear(string applicationName);
+
+        public bool Create(string applicationName);
+
+        public AesGcm RetrieveKey(string applicationName, string fingerprintName, AesGcm fingerprintKey);
     }
 }