diff --git a/module_4/credentials b/module_4/credentials
new file mode 100644
index 0000000..7aa311a
--- /dev/null
+++ b/module_4/credentials
@@ -0,0 +1 @@
+password
\ No newline at end of file
diff --git a/module_4/yandex-client.jks b/module_4/yandex-client.jks
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diff --git a/module_4/yandex-server.jks b/module_4/yandex-server.jks
new file mode 100644
index 0000000..0a52a74
Binary files /dev/null and b/module_4/yandex-server.jks differ