CSP_GenerateMacFinal man page on DigitalUNIX

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GenerateMacFinal(3)					   GenerateMacFinal(3)

NAME
       GenerateMacFinal,  CSSM_GenerateMacFinal, CSP_GenerateMacFinal - Final‐
       ize the staged message authentication code (CDSA)

SYNOPSIS
       # include <cdsa/cssm.h>

       API: CSSM_RETURN CSSMAPI CSSM_GenerateMacFinal  (CSSM_CC_HANDLE	CCHan‐
       dle,  CSSM_DATA_PTR Mac) SPI: CSSM_RETURN CSSMCSPI CSP_GenerateMacFinal
       (CSSM_CSP_HANDLE CSPHandle, CSSM_CC_HANDLE CCHandle, CSSM_DATA_PTR Mac)

LIBRARY
       Common Security Services Manager library (libcssm.so)

API PARAMETERS
       The handle that describes the context of this  cryptographic  operation
       used  to	 link  to  the	CSP-managed  information.   A  pointer	to the
       CSSM_DATA structure for the message authentication code.

SPI PARAMETERS
       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 finalizes the staged message  authentication  code	 func‐
       tion.

NOTES ON API
       The output is returned to the caller either by filling the caller-spec‐
       ified buffer or by using the application's declared  memory  allocation
       functions to allocate buffer space. To specify a specific, preallocated
       output buffer, the  caller  must	 provide  an  array  of	 one  or  more
       CSSM_DATA structures, each containing a Length field value greater than
       zero and a non-NULL data pointer field value. To specify automatic out‐
       put  buffer  allocation by the CSP, the caller must provide an array of
       one or more CSSM_DATA structures, each containing a Length field	 value
       equal  to  zero and a NULL data pointer field value. The application is
       always responsible for deallocating the memory when  it	is  no	longer
       needed.

NOTES ON SPI
       The  output is returned to the caller as specified in Buffer Management
       for Cryptographic Services.

RETURN VALUE
       A CSSM_RETURN value indicating success or specifying a particular error
       condition. The value CSSM_OK indicates success. All other values repre‐
       sent an error condition.

ERRORS
       Errors  are  described	in   the   CDSA	  technical   standard.	   See
       CDSA_intro(3).  CSSMERR_CSP_OUTPUT_LENGTH_ERROR

SEE ALSO
       Books

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

       Reference Pages

       Functions for the CSSM API:

       CSSM_GenerateMac(3), CSSM_GenerateMacInit(3), CSSM_GenerateMacUpdate(3)

       Functions for the CSP SPI:

       CSP_GenerateMac(3), CSP_GenerateMacInit(3), CSP_GenerateMacUpdate(3)

							   GenerateMacFinal(3)
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