diff --git a/app/credentials.js b/app/credentials.js
new file mode 100644
index 0000000..153b6a2
--- /dev/null
+++ b/app/credentials.js
@@ -0,0 +1,33 @@
+/* global api */
+
+async function addCredentials (connectionManager, login, password) {
+    const xmppService = login.split('@').pop()
+    await api.settings.set('connectionManager', connectionManager)
+    await api.settings.set('login', login)
+    await api.keytar.setPassword(xmppService, login, password)
+}
+
+async function getCredentials () {
+    const credentials = {}
+    credentials.login = (await api.settings.get('login')) || '';
+    if (credentials.login) {
+        credentials.connectionManager = await api.settings.get('connectionManager') || null
+        credentials.xmppService = credentials.login.split('@').pop()
+        credentials.password = await api.keytar.getPassword(credentials.xmppService, credentials.login)
+    }
+
+    return credentials;
+}
+
+async function removeCredentials (login) {
+    const xmppService = login.split('@').pop();
+    await api.keytar.deletePassword(xmppService, login);
+    await api.settings.unset('login');
+    await api.settings.unset('connectionManager');
+}
+
+export {
+    addCredentials,
+    getCredentials,
+    removeCredentials
+}
\ No newline at end of file