HP OpenVMS Systems Documentation

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HP Open Source Security for OpenVMS Volume 1: Common Data Security Architecture > CDSA API Functions

DigestDataUpdate

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NAME

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.

None specific to this call.

SEE ALSO

Books

Intel CDSA Application Developer's Guide

Online Help

Functions for the CSSM API:

CSSM_DigestData, CSSM_DigestDataInit, CSSM_DigestDataClone, CSSM_DigestDataFinal

Functions for the CSP SPI:

Functions: CSP_DigestData, CSP_DigestDataInit, CSP_DigestDataClone, CSP_DigestDataFinal