GenerateMacUpdate

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HP Open Source Security for OpenVMS Volume 1:...

API Functions

GenerateMacInit

GenerateRandom

GenerateMacUpdate

Library
Spi Parameters
Return Value
See Also

Api Parameters
Description
Errors

NAME

GenerateMacUpdate: CSSM_GenerateMacUpdate, CSP_GenerateMacUpdate - Continue the staged process of computing a message authentication code (CDSA)

SYNOPSIS

# include <cssm.h>

API:
CSSM_RETURN CSSMAPI CSSM_GenerateMacUpdate
(CSSM_CC_HANDLE CCHandle,
const CSSM_DATA *DataBufs,
uint32 DataBufCount)
SPI:
CSSM_RETURN CSSMCSPI CSP_GenerateMacUpdate
(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 calls to CSSM for the memory functions managed by CSSM.

DESCRIPTION

This function continues the staged process of computing a message authentication code over all data contained in the set of input buffers. The authentication code will be returned as a result of the final code generation step.

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.