diff --git a/lib/browser/x509.js b/lib/browser/x509.js
new file mode 100644
index 0000000..14c4176
--- /dev/null
+++ b/lib/browser/x509.js
@@ -0,0 +1,2 @@
+var jsrsasign = require('jsrsasign');
+module.exports = jsrsasign;