HP OpenVMS Systems Documentation

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

DigestDataInit

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NAME

CSSM_DigestDataInit, CSP_DigestDataInit — Initialize the staged message digest (CDSA)

SYNOPSIS

# include <cssm.h>
API:
CSSM_RETURN CSSMAPI CSSM_DigestDataInit
(CSSM_CC_HANDLE CCHandle)
SPI:
CSSM_RETURN CSSMCSPI CSP_DigestDataInit
(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 message digest function.

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_DigestDataUpdate, CSSM_DigestDataClone, CSSM_DigestDataFinal

Functions for the CSP SPI:

CSP_DigestData, CSP_DigestDataUpdate, CSP_DigestDataClone, CSP_DigestDataFinal