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 authenticationcode (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 cryptographicoperation used to link to the CSP-managed information.
`DataBufs` (input)
		A pointer to a vector of CSSM_DATA structures thatcontain the data to be operated on.
`DataBufCount` (input)
		The number of DataBufs.

SPI PARAMETERS

`CSPHandle` (input)
		The handle that describes the add-in CryptographicService Provider module used to perform calls to CSSM for the memoryfunctions managed by CSSM.

DESCRIPTION

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

RETURN VALUE

A CSSM_RETURN value indicating success or specifying a particularerror condition. The value CSSM_OK indicates success. All othervalues represent an error condition.

ERRORS

Errors are described in the CDSA Technical Standard.

None specific to this call.