Developer Reference

Contents

GFpGetSize

Gets the size of the context of a GF(q) field.

Syntax

IppStatus ippsGFpGetSize(int
febitSize
, int*
pSize
);
Include Files
ippcp.h
Parameters
febitSize
Size, in bytes, of the odd prime number
q
(modulus of GF(
q
)).
pSize
Pointer to the buffer size, in bytes, needed for the
IppsGFpState
context.
Description
This function returns the size of the buffer associated with the
IppsGFpState
context, which you can use to store data of the finite field GF(
q
) determined by the odd prime number
q
of size not greater than
febitSize
bit.
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
.
ippStsSizeErr
Indicates an error condition if
febitSize
is less than 2 or greater than 1024.

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