Developer Reference

Contents

AES_GCMProcessAAD

Processes additional authenticated data of a given length according to the GCM specification.

Syntax

IppStatus ippsAES_GCMProcessAAD(const Ipp8u*
pAAD
, int
ivAAD
, IppsAES_GCMState*
pState
);
Include Files
ippcp.h
Parameters
pAAD
Pointer to the additional authenticated data.
ivAAD
Length of additional authenticated data
*pAAD
(in bytes).
pState
Pointer to the
IppsAES_GCMState
context.
Description
The function processes
ivAAD
bytes of additional authenticated data
*pAAD
as specified in [NIST SP 800-38D].
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
ivAAD
is less than zero.
ippStsBadArgErr
Indicates an error condition if
ivAAD
is zero and
pState
is not
GcmInit
or
GcmIVProcessing
. This means that the function call sequence is illegal.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804