diff --git a/app/serveur.js b/app/serveur.js
index a1180bd4bfc59f1d92e256d54bb97f4c879c6212..5602c1f4bb16cbb1e4af6dcf14c7adc4536a241b 100644
--- a/app/serveur.js
+++ b/app/serveur.js
@@ -5,6 +5,8 @@ const WebSocket = require('ws');
 const http = require('http');
 const path = require('path');
 const bodyParser = require('body-parser');
+const start = "a";        // limite de début
+const end = "9999999999";     // limite de fin
 
 const {generateSimulatedHash, sendHashToSlave} = require('./utils');
 
@@ -77,7 +79,7 @@ app.post('/generateHash', async (req, res) => {
     if (searchToRedis === null) {
         wss.clients.forEach((client) => {
             if (client.readyState === WebSocket.OPEN) {
-                sendHashToSlave(hash, client);
+                sendHashToSlave(hash, client, start, end);
             }
         });
     } else {
@@ -103,7 +105,7 @@ app.post('/generateHashOfPassword', async (req, res) => {
             // Envoi du texte au service esclave via WebSocket
             wss.clients.forEach((client) => {
                 if (client.readyState === WebSocket.OPEN) {
-                    sendHashToSlave(hash, client);
+                    sendHashToSlave(hash, client, start, end);
                 }
             });
         } else {
diff --git a/app/utils.js b/app/utils.js
index d8f3f04f619d3e36795ff6a8baec60eb56d35246..1be62f2296b2a4ba77454c66362ce0b2a545294d 100644
--- a/app/utils.js
+++ b/app/utils.js
@@ -16,8 +16,8 @@ function generateSimulatedHash(difficulty) {
     return hash;
 }
 
-function sendHashToSlave(hash, client) {
-    client.send("search " + hash + " send hash");
+function sendHashToSlave(hash, client, start, end) {
+    client.send(`search ${hash} ${start} ${end}`);
 }
 
 module.exports = {