NAME    [Toc]    [Back]

       SignDataFinal,   CSSM_SignDataFinal,  CSP_SignDataFinal  -
       Complete the final stage of the sign data (CDSA)

SYNOPSIS    [Toc]    [Back]

       # include <cdsa/cssm.h>

       API: CSSM_RETURN CSSMAPI CSSM_SignDataFinal  (CSSM_CC_HANDLE
  CCHandle,  CSSM_DATA_PTR  Signature) SPI: CSSM_RETURN
       CSSMCSPI  CSP_SignDataFinal  (CSSM_CSP_HANDLE   CSPHandle,
       CSSM_CC_HANDLE CCHandle, CSSM_DATA_PTR Signature)

LIBRARY    [Toc]    [Back]

       Common Security Services Manager library (libcssm.so)

API PARAMETERS    [Toc]    [Back]

       The  handle  that  describes  the  context of this cryptographic
 operation used to link to the CSP-managed information.
  A pointer to the CSSM_DATA structure for the signature.

SPI PARAMETERS    [Toc]    [Back]

       The handle that describes the add-in cryptographic service
       provider  module  used to perform up calls to CSSM for the
       memory functions managed by CSSM.

DESCRIPTION    [Toc]    [Back]

       This function completes the final stage of the  sign  data
       function.

NOTES ON API    [Toc]    [Back]

       The output is returned to the caller either by filling the
       caller-specified buffer  or  by  using  the  application's
       declared  memory  allocation  functions to allocate buffer
       space. To specify a specific, preallocated output  buffer,
       the  caller must provide an array of one or more CSSM_DATA
       structures, each containing a Length field  value  greater
       than  zero  and  a  non-NULL  data pointer field value. To
       specify automatic output buffer allocation by the CSP, the
       caller  must  provide  an  array  of one or more CSSM_DATA
       structures, each containing a Length field value equal  to
       zero  and a NULL data pointer field value. The application
       is always responsible for deallocating the memory when  it
       is no longer needed.

NOTES ON SPI    [Toc]    [Back]

       The output is returned to the caller as specifed in Buffer
       Management for Cryptographic Services.

RETURN VALUE    [Toc]    [Back]

       A CSSM_RETURN value indicating  success  or  specifying  a
       particular  error  condition.  The value CSSM_OK indicates
       success. All other values represent an error condition.

ERRORS    [Toc]    [Back]

       Errors are described in the CDSA technical standard.   See
       CDSA_intro(3).  CSSMERR_CSP_OUTPUT_LENGTH_ERROR

SEE ALSO    [Toc]    [Back]

       Books

       Intel    CDSA    Application    Developer's   Guide   (see
       CDSA_intro(3))

       Reference Pages    [Toc]    [Back]

       Functions for the CSSM API:

       CSSM_SignData(3),  CSSM_SignDataInit(3),  CSSM_SignDataUpdate(3)

       Functions for the CSP SPI:

       CSP_SignData(3),    CSP_SignDataInit(3),   CSP_SignDataUpdate(3)



                                                 SignDataFinal(3)