Cryptography for Intel® Integrated Performance Primitives Developer Reference

Developer Reference

Contents

AES_GCMProcessIV

Processes an initial vector of a given length according to the GCM specification.

Syntax

IppStatus ippsAES_GCMProcessIV(const Ipp8u*
pIV
, int
ivLen
, IppsAES_GCMState*
pState
);
Include Files
ippcp.h
Parameters
pIV
Pointer to the initialization vector.
ivLen
Length of the initialization vector
*pIV
 (in bytes).
pState
Pointer to the
IppsAES_GCMState
 context.
Description
The function processes
ivLen
 bytes of the initial vector
*pIV
 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 the length of the initialization vector is zero.
ippStsBadArgErr
Indicates an error condition if the
pState
 parameter value is not
GcmInit
 or
GcmIVProcessing
. This means that the function call sequence is illegal.

Product and Performance Information

1

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