diff --git a/docs/cryptosystems.drawio b/docs/cryptosystems.drawio
index 765e5e3..a42119c 100644
--- a/docs/cryptosystems.drawio
+++ b/docs/cryptosystems.drawio
@@ -1,4 +1,4 @@
-<mxfile host="app.diagrams.net" modified="2020-09-03T10:52:20.048Z" agent="5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.135 Safari/537.36" etag="xnX6HlMfwgSfOABX-583" version="13.6.6" type="github" pages="3">
+<mxfile host="app.diagrams.net" modified="2020-09-03T10:58:52.550Z" agent="5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.135 Safari/537.36" etag="VxxrOzWd1LJBHa-YRIt2" version="13.6.6" type="github" pages="3">
   <diagram id="C5RBs43oDa-KdzZeNtuy" name="Login/Register">
     <mxGraphModel dx="1066" dy="845" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="827" pageHeight="1169" math="0" shadow="0">
       <root>
@@ -336,8 +336,8 @@
         <mxCell id="LL1DRk6oRKZlNUp4qJ55-3" value="Meet failed. Who are you?" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;fillColor=#f8cecc;strokeColor=#b85450;" vertex="1" parent="WIyWlLk6GJQsqaUBKTNV-1">
           <mxGeometry x="667.4699999999999" y="1791" width="92.26" height="40" as="geometry" />
         </mxCell>
-        <mxCell id="LL1DRk6oRKZlNUp4qJ55-5" value="&lt;div&gt;&lt;span&gt;[Server]&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;Decrypt marx&#39;s public key on disk (to: Keyserver, from: Komrade)&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;Encypt marx&#39;s public key (to: User,&amp;nbsp;&lt;/div&gt;&lt;span style=&quot;color: rgba(0 , 0 , 0 , 0) ; font-family: monospace ; font-size: 0px&quot;&gt;%3CmxGraphModel%3E%3Croot%3E%3CmxCell%20id%3D%220%22%2F%3E%3CmxCell%20id%3D%221%22%20parent%3D%220%22%2F%3E%3CmxCell%20id%3D%222%22%20value%3D%22%26lt%3Bdiv%26gt%3B%26lt%3Bspan%26gt%3B%5BServer%5D%26lt%3B%2Fspan%26gt%3B%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3B%26lt%3Bbr%26gt%3B%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3BReceive%202%20encryped%20public%20keys%20from%20user%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3B%26lt%3Bbr%26gt%3B%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3BDecrypt%20first%20public%20key%3A%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3B%26lt%3Bi%26gt%3Bto%26lt%3B%2Fi%26gt%3B%3A%20me%2C%26amp%3Bnbsp%3B%26lt%3Bspan%26gt%3B%26lt%3Bi%26gt%3Bfrom%26lt%3B%2Fi%26gt%3B%3A%20komrade%26lt%3B%2Fspan%26gt%3B%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3B%26lt%3Bbr%26gt%3B%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3BDecrypt%20second%20public%20key%3A%26lt%3B%2Fdiv%26gt%3B%26lt%3Bdiv%26gt%3B%26lt%3Bi%26gt%3Bto%26lt%3B%2Fi%26gt%3B%3A%20me%2C%20%26lt%3Bi%26gt%3Bfrom%3A%26lt%3B%2Fi%26gt%3B%26amp%3Bnbsp%3B%26lt%3Bspan%26gt%3Bdecrypted%20first%20pubkey%26lt%3B%2Fspan%26gt%3B%26lt%3B%2Fdiv%26gt%3B%22%20style%3D%22rounded%3D1%3BwhiteSpace%3Dwrap%3Bhtml%3D1%3BfontSize%3D12%3Bglass%3D0%3BstrokeWidth%3D1%3Bshadow%3D0%3Balign%3Dcenter%3B%22%20vertex%3D%221%22%20parent%3D%221%22%3E%3CmxGeometry%20x%3D%22101.26500000000004%22%20y%3D%221729.5%22%20width%3D%22205.39%22%20height%3D%22159%22%20as%3D%22geometry%22%2F%3E%3C%2FmxCell%3E%3C%2Froot%3E%3C%2FmxGraphModel%3E&lt;/span&gt;" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;align=center;" vertex="1" parent="WIyWlLk6GJQsqaUBKTNV-1">
-          <mxGeometry x="789.7299999999999" y="2011.25" width="200" height="120" as="geometry" />
+        <mxCell id="LL1DRk6oRKZlNUp4qJ55-5" value="&lt;div&gt;&lt;span&gt;[Server]&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;Receive double-encrypted request from client&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;Decrypt first time (to: Keysever, from: Komrade)&amp;nbsp;&lt;span&gt;to reveal a second encryted request [i.e.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Q(i_am:&amp;nbsp;&lt;/i&gt;&lt;span&gt;elon,&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;i&gt;my_req&lt;/i&gt;&lt;span&gt;: elon-encrypted &#39;whois marx&#39;]&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;Get the encrypted public key I have on disk for &#39;elon&#39;, decrypt it (to: Keysever, from: Komrade)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;Attempt to decrypt &#39;my_req&#39; using elon&#39;s loaded-from-disk public key&lt;/span&gt;&lt;/div&gt;" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;align=center;" vertex="1" parent="WIyWlLk6GJQsqaUBKTNV-1">
+          <mxGeometry x="789.73" y="2011.25" width="300.27" height="208.75" as="geometry" />
         </mxCell>
         <mxCell id="LL1DRk6oRKZlNUp4qJ55-8" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;entryX=0.5;entryY=0;entryDx=0;entryDy=0;noEdgeStyle=1;orthogonal=1;" edge="1" parent="WIyWlLk6GJQsqaUBKTNV-1" source="LL1DRk6oRKZlNUp4qJ55-6" target="LL1DRk6oRKZlNUp4qJ55-5">
           <mxGeometry relative="1" as="geometry">
@@ -347,7 +347,7 @@
             </Array>
           </mxGeometry>
         </mxCell>
-        <mxCell id="LL1DRk6oRKZlNUp4qJ55-6" value="&lt;div&gt;&lt;span&gt;[Client]&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;Encrypt a request for marx&#39;s public key (to: Keyserver, from: elon)&lt;/span&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;div&gt;Form a part-encrypted request&lt;/div&gt;&lt;div&gt;&lt;i&gt;i_am:&lt;/i&gt;&lt;span&gt;&amp;nbsp;unencrypted(elon)&lt;/span&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;i&gt;my_req&lt;/i&gt;: encrypted(whois marx?)&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;Encrypt that request (to: Keyserver, from: Komrade)&lt;/div&gt;" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;align=center;" vertex="1" parent="WIyWlLk6GJQsqaUBKTNV-1">
+        <mxCell id="LL1DRk6oRKZlNUp4qJ55-6" value="&lt;div&gt;&lt;span&gt;[Client]&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;Encrypt a request for marx&#39;s public key (to: Keyserver, from: elon)&lt;/span&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;div&gt;Form a part-encrypted request&lt;/div&gt;&lt;div&gt;&lt;i&gt;Q(i_am:&lt;/i&gt;&lt;span&gt;&amp;nbsp;unencrypted(elon),&lt;/span&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;&lt;i&gt;my_req&lt;/i&gt;: encrypted(whois marx?))&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;br&gt;&lt;/div&gt;&lt;div&gt;Encrypt that request (to: Keyserver, from: Komrade)&lt;/div&gt;" style="rounded=1;whiteSpace=wrap;html=1;fontSize=12;glass=0;strokeWidth=1;shadow=0;align=center;" vertex="1" parent="WIyWlLk6GJQsqaUBKTNV-1">
           <mxGeometry x="789.73" y="1742.5" width="200.27" height="167.5" as="geometry" />
         </mxCell>
       </root>