NAME
   DigestDataUpdate,
   CSSM_DigestDataUpdate - Continue the staged process of digesting (CDSA)

 SYNOPSIS
   # include <cssm.h>

    API:
        CSSM_RETURN CSSMAPI CSSM_DigestDataUpdate
        (CSSM_CC_HANDLE CCHandle,
        const CSSM_DATA *DataBufs,
        uint32 DataBufCount)
    SPI:
        CSSM_RETURN CSSMCSPI CSP_DigestDataUpdate
        (CSSM_CSP_HANDLE CSPHandle,
        CSSM_CC_HANDLE CCHandle,
        const CSSM_DATA *DataBufs,
        uint32 DataBufCount)

 LIBRARY
   Common Security Services Manager library (CDSA$INCSSM300_SHR.EXE)

 API PARAMETERS
   CCHandle (input)
           The handle that describes the context of this cryptographic
           operation used to link to the CSP-managed information.

   DataBufs (input)
           A pointer to a vector of CSSM_DATA structures that contain
           the data to be operated on.

   DataBufCount (input)
           The number of DataBufs.

 SPI PARAMETERS
   CSPHandle (input)
           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
   This function continues the staged process of digesting all data
   contained in the set of input buffers. The resulting digest value
   will be returned as part of the staged digesting process.

 RETURN VALUE
   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
   Errors are described in the CDSA technical standard.  See CDSA.

   None specific to this call.

 SEE ALSO
   Books

   Intel CDSA Application Developer's Guide (see CDSA)

   Other Help Topics

   Functions for the CSSM API:

       CSSM_DigestData
       CSSM_DigestDataInit
       CSSM_DigestDataClone
       CSSM_DigestDataFinal

   Functions for the CSP SPI:

       CSP_DigestData
       CSP_DigestDataInit
       CSP_DigestDataClone
       CSP_DigestDataFinal