diff --git a/public/ajax/getG1PubKey.php b/public/ajax/getG1PubKey.php
new file mode 100644
index 0000000..6c29bce
--- /dev/null
+++ b/public/ajax/getG1PubKey.php
@@ -0,0 +1,24 @@
+<?php
+//	if(isset($_POST['produit']) && isset($_POST['vendeur']) && isset($_POST['cle_pub']))
+//	{
+                // Get public key from pseudo
+			$parseUser = $_GET['vendeur'];
+                        putenv("parseUser=$parseUser");
+                        $silkPubKey = system('curl -s https:\/\/duniter-g1.p2p.legal/wot/members | grep -w -i -B 1 $parseUser | grep "pubkey" | awk -F \'"\' \'{ print $4 }\'');
+
+                        if (empty($silkPubKey))
+                        {
+				$silkPubKeyUser = shell_exec('curl -s https:\/\/duniter-g1.p2p.legal/wot/lookup/$parseUser | head | grep -i -w -A 3 "pubkey" | awk -F \'"\' \'{ print $4 }\' | awk \'NF > 0\'');
+                                putenv("silkPubKeyUser=$silkPubKeyUser");
+                                $silkUser = system('echo "$silkPubKeyUser" | tail -n2 | head -n1');
+                                if ($silkUser == $parseUser)
+                                {
+                                        $silkPubKey = system('echo "$silkPubKeyUser" | head -n1');
+                                }
+                        }
+
+
+//	echo $silkPubKey
+
+//	}
+?>
diff --git a/src/Account/views/signup.twig b/src/Account/views/signup.twig
index 8106e3f..7eff096 100644
--- a/src/Account/views/signup.twig
+++ b/src/Account/views/signup.twig
@@ -6,6 +6,13 @@
       {{ csrf_input() }}
       {{ field('username', user.username, "Pseudo") }}
       {{ field('pubkey', user.pubkey, "Clé publique") }}
+
+
+      <!--<input type="text" size="30" onkeyup="showResult(this.value)">-->
+      <input type="text" id="vendeur-input" />
+
+      <div id="livesearch"></div>
+
       {{ field('firstname', user.firstname, "Prénom") }}  {{ field('lastname', user.lastname, "Nom") }}
       {{ field('email', user.email, "Email", {type: 'email'}) }}
       {{ field('password', null, "Mot de passe", {type: 'password'}) }}
@@ -14,4 +21,52 @@
       <button class="btn btn-primary">S'inscrire</button>
     </form>
   </div>
+
+
+<script>
+function showResult(str) {
+  if (str.length==0) {
+    document.getElementById("livesearch").innerHTML="";
+    document.getElementById("livesearch").style.border="0px";
+    return;
+  }
+  if (window.XMLHttpRequest) {
+    // code for IE7+, Firefox, Chrome, Opera, Safari
+    xmlhttp=new XMLHttpRequest();
+  } else {  // code for IE6, IE5
+    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
+  }
+  xmlhttp.onreadystatechange=function() {
+    if (this.readyState==4 && this.status==200) {
+      document.getElementById("livesearch").innerHTML=this.responseText;
+      document.getElementById("livesearch").style.border="1px solid #A5ACB2";
+    }
+  }
+  xmlhttp.open("GET","/ajax/getG1PubKey.php?vendeur="+str,true);
+  xmlhttp.send();
+}
+</script>
+
+<script>
+var textInput = document.getElementById('vendeur-input');
+var timeout = null;
+textInput.onkeyup = function (e) {
+    clearTimeout(timeout);
+    // Make a new timeout set to go off in 800ms
+    timeout = setTimeout(function () {
+      xmlhttp=new XMLHttpRequest();
+  xmlhttp.onreadystatechange=function() {
+    if (this.readyState==4 && this.status==200) {
+      document.getElementById("livesearch").innerHTML=this.responseText;
+      document.getElementById("livesearch").style.border="1px solid #A5ACB2";
+    }
+  }
+  xmlhttp.open("GET","/ajax/getG1PubKey.php?vendeur="+textInput.value,true);
+  xmlhttp.send();
+
+    }, 1000);
+};
+</script>
+
 {% endblock %}
+