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.. _mozilla_projects_nss_reference_fc_verify:
FC_Verify
=========
`Name <#name>`__
~~~~~~~~~~~~~~~~
.. container::
FC_Verify - sign a block of data.
`Syntax <#syntax>`__
~~~~~~~~~~~~~~~~~~~~
.. container::
.. code::
CK_RV FC_Verify(
CK_SESSION_HANDLE hSession,
CK_BYTE_PTR pData,
CK_ULONG usDataLen,
CK_BYTE_PTR pSignature,
CK_ULONG usSignatureLen
);
`Parameters <#parameters>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
``hSession``
[in] session handle.
``pData``
[in] pointer to data block.
``usDataLen``
[in] length of the data in bytes.
``pSignature``
[in] pointer to the signature.
``usSignatureLen``
[in] length of the signature in bytes.
`Description <#description>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
``FC_Verify`` verifies a signature in a single-part operation, where the signature is an appendix
to the data.
A user must log into the token (to assume the NSS User role) before calling ``FC_Verify``.
.. _return_value:
`Return value <#return_value>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
``CKR_OK`` is returned on success. ``CKR_SIGNATURE_INVALID`` is returned for signature mismatch.
`Examples <#examples>`__
~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
.. _see_also:
`See also <#see_also>`__
~~~~~~~~~~~~~~~~~~~~~~~~
.. container::
- :ref:`mozilla_projects_nss_reference_fc_verifyinit`, `NSC_Verify </en-US/NSC_Verify>`__
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