diff --git a/src/pages/home/home.ts b/src/pages/home/home.ts
index b75b50e..dde82cb 100755
--- a/src/pages/home/home.ts
+++ b/src/pages/home/home.ts
@@ -524,9 +524,21 @@ export function setupIframePairingButtons() {
   }
 }
 
-// Main Pairing Interface - Auto-triggered, no button needed
+// Main Pairing Interface - Automatic WebAuthn trigger
 export function setupMainPairing(): void {
-  // No button setup needed since authentication is automatic
+  const container = getCorrectDOM('login-4nk-component') as HTMLElement;
+  const mainStatus = container.querySelector('#main-status') as HTMLElement;
+  
+  if (mainStatus) {
+    mainStatus.innerHTML = `
+      <div class="auth-container">
+        <p>🔐 Secure authentication required</p>
+        <div class="spinner"></div>
+        <span>Initializing secure authentication...</span>
+      </div>
+    `;
+  }
+  
   console.log('🔐 Main pairing setup - authentication will be automatic');
 }
 
diff --git a/src/services/secure-credentials.service.ts b/src/services/secure-credentials.service.ts
index 8ee9507..eb109ea 100644
--- a/src/services/secure-credentials.service.ts
+++ b/src/services/secure-credentials.service.ts
@@ -99,16 +99,32 @@ export class SecureCredentialsService {
           authenticatorAttachment: "platform", // Force l'authentificateur intégré
           userVerification: "required"
         },
-        timeout: 60000,
+        timeout: 120000, // 2 minutes timeout
         attestation: "direct"
       };
 
       console.log('🔐 Requesting WebAuthn credential creation for encryption key...');
 
-      // Créer le credential WebAuthn
-      const credential = await navigator.credentials.create({
-        publicKey: publicKeyCredentialCreationOptions
-      }) as PublicKeyCredential;
+      // Créer le credential WebAuthn avec gestion d'erreur robuste
+      let credential: PublicKeyCredential;
+      try {
+        credential = await navigator.credentials.create({
+          publicKey: publicKeyCredentialCreationOptions
+        }) as PublicKeyCredential;
+      } catch (error) {
+        if (error instanceof Error) {
+          if (error.name === 'NotAllowedError') {
+            throw new Error('WebAuthn authentication was cancelled or timed out. Please try again and complete the authentication when prompted.');
+          } else if (error.name === 'NotSupportedError') {
+            throw new Error('WebAuthn is not supported in this browser. Please use a modern browser with WebAuthn support.');
+          } else if (error.name === 'SecurityError') {
+            throw new Error('WebAuthn security error. Please ensure you are using HTTPS and try again.');
+          } else {
+            throw new Error(`WebAuthn error: ${error.message}`);
+          }
+        }
+        throw error;
+      }
 
       if (!credential) {
         throw new Error('WebAuthn credential creation failed');
@@ -283,18 +299,34 @@ export class SecureCredentialsService {
       throw new Error('WebAuthn not supported for decryption');
     }
 
-    // Demander l'authentification WebAuthn
-    const credential = await navigator.credentials.get({
-      publicKey: {
-        challenge: crypto.getRandomValues(new Uint8Array(32)),
-        allowCredentials: [{
-          id: new TextEncoder().encode(credentialId),
-          type: 'public-key'
-        }],
-        userVerification: 'required',
-        timeout: 60000
+    // Demander l'authentification WebAuthn avec gestion d'erreur robuste
+    let credential: PublicKeyCredential;
+    try {
+      credential = await navigator.credentials.get({
+        publicKey: {
+          challenge: crypto.getRandomValues(new Uint8Array(32)),
+          allowCredentials: [{
+            id: new TextEncoder().encode(credentialId),
+            type: 'public-key'
+          }],
+          userVerification: 'required',
+          timeout: 120000 // 2 minutes timeout
+        }
+      }) as PublicKeyCredential;
+    } catch (error) {
+      if (error instanceof Error) {
+        if (error.name === 'NotAllowedError') {
+          throw new Error('WebAuthn authentication was cancelled or timed out. Please try again and complete the authentication when prompted.');
+        } else if (error.name === 'NotSupportedError') {
+          throw new Error('WebAuthn is not supported in this browser. Please use a modern browser with WebAuthn support.');
+        } else if (error.name === 'SecurityError') {
+          throw new Error('WebAuthn security error. Please ensure you are using HTTPS and try again.');
+        } else {
+          throw new Error(`WebAuthn decryption error: ${error.message}`);
+        }
       }
-    }) as PublicKeyCredential;
+      throw error;
+    }
 
     if (!credential) {
       throw new Error('WebAuthn authentication failed');
diff --git a/src/services/service.ts b/src/services/service.ts
index 64bc44d..05ff366 100755
--- a/src/services/service.ts
+++ b/src/services/service.ts
@@ -897,9 +897,18 @@ export default class Services {
     console.log('🔍 DEBUG: Members type:', typeof membersObj);
     console.log('🔍 DEBUG: Members keys:', Object.keys(membersObj));
 
-    // Convert object to array for WebAssembly
-    const members = Object.values(membersObj);
+    // Check if membersList is empty
+    if (!membersObj || Object.keys(membersObj).length === 0) {
+      console.warn('⚠️ No members available for create_new_process, waiting for handshake...');
+      throw new Error('No members available - handshake not completed yet');
+    }
+
+    // Convert to simple array of SP addresses for WebAssembly
+    const members = Object.values(membersObj).map(member => ({
+      sp_addresses: member.sp_addresses
+    }));
     console.log('🔍 DEBUG: Members array length:', members.length);
+    console.log('🔍 DEBUG: Members simplified:', members);
 
     const result = this.sdkClient.create_new_process(
       encodedPrivateData,
@@ -943,12 +952,15 @@ export default class Services {
       ...this.sdkClient.encode_binary(publicSplitData.binaryData),
     };
     try {
+      const members = Object.values(this.getAllMembers()).map(member => ({
+        sp_addresses: member.sp_addresses
+      }));
       const result = this.sdkClient.update_process(
         process,
         encodedPrivateData,
         roles,
         encodedPublicData,
-        Object.values(this.getAllMembers())
+        members
       );
       if (result.updated_process) {
         await this.checkConnections(result.updated_process.current_process);
@@ -969,7 +981,10 @@ export default class Services {
       await this.checkConnections(process);
     }
     try {
-      return this.sdkClient.create_update_message(process, stateId, Object.values(this.getAllMembers()));
+      const members = Object.values(this.getAllMembers()).map(member => ({
+        sp_addresses: member.sp_addresses
+      }));
+      return this.sdkClient.create_update_message(process, stateId, members);
     } catch (e) {
       throw new Error(`Failed to create prd update: ${e}`);
     }
@@ -981,7 +996,10 @@ export default class Services {
       throw new Error('Unknown process');
     }
     try {
-      return this.sdkClient.create_response_prd(process, stateId, Object.values(this.getAllMembers()));
+      const members = Object.values(this.getAllMembers()).map(member => ({
+        sp_addresses: member.sp_addresses
+      }));
+      return this.sdkClient.create_response_prd(process, stateId, members);
     } catch (e) {
       throw new Error(`Failed to create response prd: ${e}`);
     }
@@ -993,7 +1011,10 @@ export default class Services {
       throw new Error('Failed to get process from db');
     }
     try {
-      const result = this.sdkClient.validate_state(process, stateId, Object.values(this.getAllMembers()));
+      const members = Object.values(this.getAllMembers()).map(member => ({
+        sp_addresses: member.sp_addresses
+      }));
+      const result = this.sdkClient.validate_state(process, stateId, members);
       if (result.updated_process) {
         await this.checkConnections(result.updated_process.current_process);
         return result;
@@ -1049,7 +1070,9 @@ export default class Services {
   }
 
   async parseCipher(message: string) {
-    const membersList = Object.values(this.getAllMembers());
+    const membersList = Object.values(this.getAllMembers()).map(member => ({
+      sp_addresses: member.sp_addresses
+    }));
     const processes = await this.getProcesses();
     try {
       // console.log('parsing new cipher');
@@ -1080,7 +1103,9 @@ export default class Services {
       return;
     }
 
-    const membersList = Object.values(this.getAllMembers());
+    const membersList = Object.values(this.getAllMembers()).map(member => ({
+      sp_addresses: member.sp_addresses
+    }));
     try {
       // Does the transaction spend the tip of a process?
       const prevouts = this.sdkClient.get_prevouts(parsedMsg.transaction);
@@ -2178,7 +2203,7 @@ export default class Services {
         }
 
         // Add a flag to prevent processing the same handshake multiple times
-        const handshakeKey = `${url}_${Date.now()}`;
+        const handshakeKey = `${url}_${JSON.stringify(handshakeMsg.processes_list)}`;
         if (this.processedHandshakes && this.processedHandshakes.has(handshakeKey)) {
           console.debug('Handshake already processed for', url);
           return;
@@ -2479,7 +2504,9 @@ export default class Services {
     roles: Record<string, RoleDefinition>[]
   ) {
     console.log('Requesting data from peers');
-    const membersList = Object.values(this.getAllMembers());
+    const membersList = Object.values(this.getAllMembers()).map(member => ({
+      sp_addresses: member.sp_addresses
+    }));
     try {
       // Convert objects to strings for WASM compatibility
       const rolesString = JSON.stringify(roles);