Cryptography for Intel® Integrated Performance Primitives Developer Reference

Developer Reference

Contents

GFpConj

Computes the conjugate of the element of the finite field GF(p
2
).

Syntax

IppStatus ippsGFpConj(const IppsGFpElement*
pA
, IppsGFpElement*
pR
, IppsGFpState*
pGFp
);
Include Files
ippcp.h
Parameters
pA
Pointer to the context of the finite field element.
pR
Pointer to the context of the resulting element of the finite field.
pGFp
Pointer to the context of the finite field.
Description
This function computes the conjugate of an element of the finite field GF(
p
2
). If the element of the GF(
p
2
) field is the polynomial
x + a
, the conjugate element is equal to
x – a
, where
a
 is an element of the ground field GF(
p
).
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 any of
IppsGFpState
 and
IppsGFpElement
 context parameters does not match the operation.
ippStsOutOfRangeErr
Indicates an error condition if the element
pA
 does not belong to the finite field specified by the context
pGFp
.
ippStsBadArgErr
Indicates an error condition if the element
pA
 does not belong to the GF(
p
2
) field.

Product and Performance Information

1

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