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.. _mozilla_projects_nss_reference_fc_wrapkey:
FC_WrapKey
==========
`Name <#name>`__
~~~~~~~~~~~~~~~~
.. container::
FC_WrapKey - wrap a key
`Syntax <#syntax>`__
~~~~~~~~~~~~~~~~~~~~
.. container::
.. code:: eval
CK_RV FC_WrapKey(
CK_SESSION_HANDLE hSession,
CK_MECHANISM_PTR pMechanism,
CK_OBJECT_HANDLE hWrappingKey,
CK_OBJECT_HANDLE hKey,
CK_BYTE_PTR pWrappedKey,
CK_ULONG_PTR pusWrappedKeyLen
);
`Parameters <#parameters>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
``hSession``
[in] session handle.
``pMechanism``
[in] pointer to the mechanism to use.
``hWrappingKey``
[in] pointer to the public key template.
``hKey``
[in] number of attributes in the public key template.
``pWrappedKey``
[out] pointer to the location to receive the wrapped key or NULL.
``pusWrappedKeyLen``
[in, out] pointer to length of wrapped key buffer.
`Description <#description>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
``FC_WrapKey`` wraps (encrypts) a key. If ``pWrappedKey`` is NULL the length of the wrapped key
is returned in ``pusWrappedKeyLen`` and FC_WrapKey may be called again with ``pWrappedKey`` set
to retrieve the wrapped key.
A user must log into the token (to assume the NSS User role) before calling ``FC_WrapKey``.
.. _return_value:
`Return value <#return_value>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
`Examples <#examples>`__
~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
.. _see_also:
`See also <#see_also>`__
~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
- `NSC_WrapKey </en-US/NSC_WrapKey>`__
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