.. _Nng\Nnhelpers\ViewHelpers\Encrypt\HashViewHelper:

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encrypt.hash
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Description
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<nnt3:encrypt.hash />
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Generates a hash from a string or a number.

.. code-block:: php

	{secret->nnt3:encrypt.hash()}
	{nnt3:encrypt(value:secret)}

Helpful if, for example, an email is to be sent with a confirmation link.

The UID of the data record is also transferred as a hash. The controller then checks
whether the ``hash`` can be generated from the passed ``uid``
If not, the ``uid`` has been manipulated.

.. code-block:: php

	
	  ...
	

| ``@return string``