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VerifyMacUpdate(3)
NAME
  VerifyMacUpdate, CSSM_VerifyMacUpdate, CSP_VerifyMacUpdate - Continue the
  staged process of verifying the message authentication code (CDSA)

SYNOPSIS
  # include <cdsa/cssm.h>

       API:
       CSSM_RETURN CSSMAPI CSSM_VerifyMacUpdate
       (CSSM_CC_HANDLE CCHandle,
       const CSSM_DATA *DataBufs,
       uint32 DataBufCount)
       SPI:
       CSSM_RETURN CSSMCSPI CSP_VerifyMacUpdate
       (CSSM_CSP_HANDLE CSPHandle,
       CSSM_CC_HANDLE CCHandle,
       const CSSM_DATA *DataBufs,
       uint32 DataBufCount)

LIBRARY
  Common Security Services Manager library (libcssm.so)

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 verifying the message
  authentication code over all data in the set of input buffers. Verification
  will be based on the authentication code presented as input when finalizing
  the staged verification 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.	See CDSA_intro(3).

  None specific to this call.

SEE ALSO
  Books

  Intel CDSA Application Developer's Guide (see CDSA_intro(3))

  Reference Pages

  Functions for the CSSM API:

  CSSM_VerifyMac(3), CSSM_VerifyMacInit(3), CSSM_VerifyMacFinal(3)

  Functions for the CSP SPI:

  CSP_VerifyMac(3), CSP_VerifyMacInit(3), CSP_VerifyMacFinal(3)

Index for Section 3

Alphabetical listing for V

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