diff --git a/app/gas-relayer/config/config.json b/app/gas-relayer/config/config.json
index 3288d25..0e14159 100644
--- a/app/gas-relayer/config/config.json
+++ b/app/gas-relayer/config/config.json
@@ -6,7 +6,7 @@
     },
     
     "whisper": {
-        "privateKey": "0x1d8ef80c9933e20fa9720bf82f3ad481c6be9e44920932c008bb76655a211add",
+        "symKey": "0xd0d905c1c62b810b787141430417caf2b3f54cffadb395b7bb39fdeb8f17266b",
         "protocol": "ws",
         "host": "localhost",
         "port": 8546,
diff --git a/app/gas-relayer/src/service.js b/app/gas-relayer/src/service.js
index 46541ce..0389482 100644
--- a/app/gas-relayer/src/service.js
+++ b/app/gas-relayer/src/service.js
@@ -7,9 +7,10 @@ const erc20ABI = require('../abi/ERC20.json');
 
 console.info("Starting...")
 
+// TODO A node should call an API (probably from a status node) to register itself as a 
+//      token gas relayer.
+
 async function start(){
-
-
 for(token in config.tokens){
   if(config.tokens[token].pricePlugin !== undefined){
     let PricePlugin = require(config.tokens[token].pricePlugin);
@@ -71,25 +72,31 @@ const shhOptions = {
 };
 
 let kId;
-
+let symKId;
 // Listening to whisper
-web3.shh.addPrivateKey(config.whisper.privateKey)
-  .then((keyId) => {
-    shhOptions.privateKeyID = keyId;
+
+web3.shh.addSymKey(config.whisper.symKey)
+  .then(symKeyId => { 
+    symKId = symKeyId;
+    return web3.shh.newKeyPair();
+    })
+  .then(keyId => {
+    shhOptions.symKeyId = symKId;
+    
     kId = keyId;
 
-    web3.shh.getPublicKey(keyId).then(pk => {
-      console.info(`Public Key: ${pk}`);
-      console.info("Topics Available:");
-      config.topics = [];
-      for(let contractName in config.contracts) {
-        console.info("- %s: %s [%s]", config.contracts[contractName].name, contractName,  Object.keys(config.contracts[contractName].allowedFunctions).join(', '));
-      }
-    });
+    console.info(`Sym Key: ${config.whisper.symKey}`);
+    console.info("Topics Available:");
+    
+    config.topics = [];
+    for(let contractName in config.contracts) {
+      console.info("- %s: %s [%s]", config.contracts[contractName].name, contractName,  Object.keys(config.contracts[contractName].allowedFunctions).join(', '));
+      shhOptions.topics = [contractName];
+      web3.shh.subscribe('messages', shhOptions, processMessages);
+    }
 
     console.info("Started.");
     console.info("Listening for messages...")
-    web3.shh.subscribe('messages', shhOptions, processMessages);
   });
   
 
diff --git a/app/gas-relayer/test/sendmsg.html b/app/gas-relayer/test/sendmsg.html
index 2c703ce..e71f025 100644
--- a/app/gas-relayer/test/sendmsg.html
+++ b/app/gas-relayer/test/sendmsg.html
@@ -4,7 +4,7 @@
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
-    <title>Send whisper message</title>
+    <title>Send whisper message to node</title>
     <style type="text/css">
     h4 small {
         color: #c3c3c3;
@@ -25,15 +25,15 @@
                     </ul>
                     <form novalidate>
                     <div class="mb-3">
-                        <label for="publicKey">Public Key</label>
+                        <label for="sKey">Symkey</label>
                         <div class="input-group">
                             <div class="input-group-prepend">
                                 <span class="input-group-text">0x</span>
                             </div>
-                            <input type="text" class="form-control" id="publicKey" placeholder="Public Key" required>
+                            <input type="text" class="form-control" id="sKey" placeholder="Public Key" required value="0xd0d905c1c62b810b787141430417caf2b3f54cffadb395b7bb39fdeb8f17266b">
                         </div>
-                        <div class="invalid-feedback publicKey" style="width: 100%;">
-                            Invalid Public Key
+                        <div class="invalid-feedback sKey" style="width: 100%;">
+                            Invalid Sym Key
                         </div>
                     </div>
                     <div class="row">
diff --git a/app/gas-relayer/test/sendmsg.js b/app/gas-relayer/test/sendmsg.js
index 1e961e0..6eaf439 100644
--- a/app/gas-relayer/test/sendmsg.js
+++ b/app/gas-relayer/test/sendmsg.js
@@ -42,7 +42,7 @@ $(function(){
         
         $('p.result').text('');
 
-        let publicKey = add0x($("#publicKey"));
+        let sKey = add0x($("#sKey"));
         let msgTopic = add0x($('#topic'));
         let msgPayload = add0x($('#payload'));
         let timeToLive = $('#ttl').val();
@@ -52,9 +52,9 @@ $(function(){
         $('.invalid-feedback').hide();
         $('.is-invalid').removeClass('is-invalid');
 
-        if(!/^0x[0-9a-f]{130}$/i.test(publicKey)){
-            $('#publicKey').addClass('is-invalid');
-            $('.invalid-feedback.publicKey').show();
+        if(!/^0x[0-9a-f]{64}$/i.test(sKey)){
+            $('#sKey').addClass('is-invalid');
+            $('.invalid-feedback.sKey').show();
         }
         
         if(!/^0x[0-9a-f]{8}$/i.test(msgTopic)){
@@ -85,12 +85,16 @@ $(function(){
 
         if($('.is-invalid').length > 0) return;
 
-        console.log(`%c await web3.shh.post({pubKey: "${publicKey}", sig: signature, ttl: ${timeToLive}, powTarget: ${powTarget}, powTime: ${powTime}, topic: "${msgTopic}", payload: "${msgPayload}"})`, 'font-weight: bold');
+        console.log(`%c await web3.shh.post({symKeyID: "${sKey}", sig: signature, ttl: ${timeToLive}, powTarget: ${powTarget}, powTime: ${powTime}, topic: "${msgTopic}", payload: "${msgPayload}"})`, 'font-weight: bold');
 
         let identity;
         
+
+        let _symKeyId = await web3.shh.addSymKey(sKey);
+
            
-        web3.shh.post({ pubKey: publicKey, 
+        web3.shh.post({ 
+                    symKeyID: _symKeyId, 
                     sig: keyPair,
                     ttl: parseInt(timeToLive), 
                     powTarget: parseFloat(powTarget),