.. _mozilla_projects_nss_reference_fc_sign: FC_Sign ======= `Name <#name>`__ ~~~~~~~~~~~~~~~~ .. container:: FC_Sign - sign a block of data. `Syntax <#syntax>`__ ~~~~~~~~~~~~~~~~~~~~ .. container:: .. code:: eval CK_RV FC_Sign( CK_SESSION_HANDLE hSession, CK_BYTE_PTR pData, CK_ULONG usDataLen, CK_BYTE_PTR pSignature, CK_ULONG_PTR pusSignatureLen ); `Parameters <#parameters>`__ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. container:: ``hSession`` [in] session handle. ``pData`` [in] pointer to data block. ``usDataLen`` [in] length of the data in bytes. ``pSignature`` [out] pointer to location where recovered data is to be stored. ``pusSignatureLen`` [in, out] pointer to the maximum size of the output buffer, replaced by the length of the signature if the operation is successful. `Description <#description>`__ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. container:: ``FC_Sign`` signs a message in a single operation according to the attributes of the previous call to ``FC_SignInit``. A user must log into the token (to assume the NSS User role) before calling ``FC_Sign``. .. _return_value: `Return value <#return_value>`__ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. container:: `Examples <#examples>`__ ~~~~~~~~~~~~~~~~~~~~~~~~ .. container:: .. _see_also: `See also <#see_also>`__ ~~~~~~~~~~~~~~~~~~~~~~~~ .. container:: - :ref:`mozilla_projects_nss_reference_fc_signinit`, `NSC_Sign `__