GFpECAddPoint

Computes the sum of two points on an elliptic curve.

Syntax

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

Include Files

ippcp.h

Parameters

pA	Pointer to the context of the first point on the elliptic curve to be added.
pQ	Pointer to the context of the second point on the elliptic curve to be added.
pR	Pointer to the context of the resulting point on the elliptic curve.
pEC	Pointer to the context of the elliptic curve.

Description

This function computes the coordinates of the elliptic curve point that is equal to the sum of two given points. The following pseudocode represents this operation: R = P + Q.

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.