The *start\_session* method
===========================
.. _start_session:
This method validates username/password. It can be used to `ping` TicketService.
This call is optional and it's not part of any flow.
Required Inputs
---------------
- :term:`user_id`
- :term:`user_passwd`
.. code-block:: xml
demo
demopass
Output Data
-----------
A :term:`crypto_block` to confirm the operation was success.
.. code-block:: xml
M_--qRfq64CDfM9Vj4JBQdRMdOJPW0xEpX1WsPqJY6Sy_XkrL
_G8x-0i4sQu1cKhPNF-2PkEozP_rOW8KEiQSB10ZOO5hkKzT1OUz6IdkZ5DnW4D
XoVa_AwIc0--Y
.. include:: crypto_block_warning.rst