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.. _mozilla_projects_nss_reference_fc_decrypt:
FC_Decrypt
==========
`Name <#name>`__
~~~~~~~~~~~~~~~~
.. container::
FC_Decrypt - Decrypt a block of data.
`Syntax <#syntax>`__
~~~~~~~~~~~~~~~~~~~~
.. container::
.. code::
CK_RV FC_Decrypt(
CK_SESSION_HANDLE hSession,
CK_BYTE_PTR pEncryptedData,
CK_ULONG usEncryptedDataLen,
CK_BYTE_PTR pData,
CK_ULONG_PTR pusDataLen
);
`Parameters <#parameters>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
``hSession``
[in] session handle.
``pEncryptedData``
[in] pointer to encrypted data block.
``usEncryptedDataLen``
[in] length of the data in bytes.
``pData``
[out] pointer to location where recovered data is to be stored.
``pusDataLen``
[in,out] pointer to location where the length of recovered data is to be stored.
`Description <#description>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
``FC_Decrypt`` decrypts a block of data according to the attributes of the previous call to
``FC_DecryptInit``.
A user must log into the token (to assume the NSS User role) before calling ``FC_Decrypt``.
.. _return_value:
`Return value <#return_value>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
`Examples <#examples>`__
~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
.. _see_also:
`See also <#see_also>`__
~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
- :ref:`mozilla_projects_nss_reference_fc_decryptinit`, `NSC_Decrypt </en-US/NSC_Decrypt>`__