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VerifyMac
Library
Spi Parameters
Return Value
See Also
 Api Parameters
Description
Errors

NAME

VerifyMac: CSSM_VerifyMac, CSP_VerifyMac - Verify the message authentication code (CDSA)

SYNOPSIS  

# include <cssm.h>

API:CSSM_RETURN CSSMAPI CSSM_VerifyMac(CSSM_CC_HANDLE CCHandle,const CSSM_DATA *DataBufs,uint32 DataBufCount,const CSSM_DATA *Mac)SPI:CSSM_RETURN CSSMCSPI CSP_VerifyMac(CSSM_CSP_HANDLE CSPHandle,CSSM_CC_HANDLE CCHandle,const CSSM_CONTEXT *Context,const CSSM_DATA *DataBufs,uint32 DataBufCount,const CSSM_DATA *Mac)


return to top LIBRARY  

Common Security Services Manager library (cdsa$incssm300_shr.exe)


return to top 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.
Mac (input) A pointer to the CSSM_DATA structure containingthe MAC to verify.


return to top 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.
Context (input)
 Pointer to CSSM_CONTEXT structure that describesthe attributes with this context.


return to top DESCRIPTION  

This function verifies the message authentication code overall data contained in the set of input buffers based on the inputsignature.


return to top 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.


return to top ERRORS  

Errors are described in the CDSA Technical Standard.
CSSMERR_CSP_INPUT_LENGTH_ERRORCSSMERR_CSP_VERIFY_FAILEDCSSMERR_CSP_INVALID_SIGNATURE


return to top SEE ALSO  

Books

Intel CDSA Application Developer's Guide

Online Help

Functions for the CSSM API:

CSSM_VerifyMacInit, CSSM_VerifyMacUpdate, CSSM_VerifyMacFinal

Functions for the CSP SPI:

CSP_VerifyMacInit, CSP_VerifyMacUpdate, CSP_VerifyMacFinal


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