GFpECMakePoint

Developer Reference for Intel® Integrated Performance Primitives Cryptography

Constructs the coordinates of a point on an elliptic curve based on the X-coordinate.

Syntax

IppStatus ippsGFpECMakePoint(const IppsGFpElement* pX, IppsGFpECPoint* pPoint, IppsGFpECState* pEC);

ippcp.h

pX	Pointer to the `X`-coordinate of the point on the elliptic curve.
pPoint	Pointer to the IppsGFpECPoint context.
pEC	Pointer to the context of the elliptic curve.

This function computes the coordinates of a point on an elliptic curve based on the X-coordinate.

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 the specified contexts does not match the operation.
ippStsOutOfRangeErr	Indicates an error condition in the following cases: The coordinates of the point pPoint do not belong to the finite field over which the elliptic curve is initialized. The point coordinate pX does not belong to the finite field over which the elliptic curve is initialized.
ippStsBadArgErr	Indicates an error condition if the finite field over which the elliptic curve is initialized is not prime.
ippStsQuadraticNonResidueErr	Indicates an error condition if the square of the `Y`-coordinate of the point is a quadratic non-residue modulo `p`.