Developer Reference

Contents

HMAC_Final

Completes computation of the HMAC value.

Syntax

IppStatus ippsHMAC_Final(Ipp8u *
pMD
, int
mdLen
, IppsHMACState *
pCtx
);
IppStatus ippsHMACFinal_rmf(Ipp8u *
pMD
, int
mdLen
, IppsHMACState_rmf *
pCtx
);
Include Files
ippcp.h
Parameters
pMD
Pointer to the resultant HMAC value.
mdLen
Specified HMAC length.
pCtx
Pointer to the
IppsHMACState
or
IppsHMACState_rmf
context.
Description
The function completes calculation of the digest value and stores the result at the memory location specified by
pMD
.
This function has a
reduced memory footprint
version. To learn more, see Reduced Memory Footprint Functions.
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error or warning.
ippStsNullPtrErr
Indicates an error condition if any of the specified pointers is
NULL
.
ippStsContextMatchErr
Indicates an error condition if the context parameter does not match the operation.
ippStsLengthErr
Indicates an error condition if
mdLen
is less than one or greater than the length of the hash value.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.