NAME
   SignDataInit,
   CSSM_SignDataInit,
   CSP_SignDataInit  - Initialize the staged sign data (CDSA)

 SYNOPSIS
   # include <cssm.h>

    API:
        CSSM_RETURN CSSMAPI CSSM_SignDataInit
        (CSSM_CC_HANDLE CCHandle)
    SPI:
        CSSM_RETURN CSSMCSPI CSP_SignDataInit
        (CSSM_CSP_HANDLE CSPHandle,
        CSSM_CC_HANDLE CCHandle,
        const CSSM_CONTEXT *Context)

 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.

 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.

   Context (input)
           Pointer to CSSM_CONTEXT structure that describes the
           attributes with this context.

 DESCRIPTION
   This function initializes the staged sign data function.

   For staged operations, a combination operation selecting both a
   digesting algorithm and a signing algorithm must be specified.

   The CSP can require that the cryptographic context include access
   credentials for authentication and authorization checks when using a
   private key or a secret key.

 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_SignData
       CSSM_SignDataUpdate
       CSSM_SignDataFinal

   Functions for the CSP SPI:

       CSP_SignData
       CSP_SignDataUpdate
       CSP_SignDataFinal