GFpECNegPoint

GFpECNegPoint#

Computes the inverse of a point.

Syntax#

IppStatus ippsGFpECNegPoint(const IppsGFpECPoint* pP, IppsGFpECPoint* pR, IppsGFpECState* pEC);

Include Files#

ippcp.h

Parameters#

pP

Pointer to the context of the given point on the elliptic curve.

pR

Pointer to the context of the resulting point on the elliptic curve.

pEC

Pointer to the context of the elliptic curve.

Description#

For a given point of the elliptic curve over the finite field, this function computes the coordinates of the inverse point. The following pseudocode represents this operation: R = 0 - 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 is NULL.

ippStsContextMatchErr

Indicates an error condition if any of the specified contexts does not match the operation.

ippStsOutOfRangeErr

Indicates an error condition if any of the specified points does not belong to the finite field over which the elliptic curve is initialized.
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