ECCBGetPoint

Retrieves coordinates of the point on the elliptic curve defined over GF(2^m).

Syntax

IppStatus ippsECCBGetPoint(IppsBigNumState* pX, IppsBigNumState* pY, const IppsECCBPoint* pPoint, IppsECCBState* pECC);

Parameters

pX	Pointer to the x-coordinate of the point on the elliptic curve.
pY	Pointer to the y-coordinate of the point on the elliptic curve.
pPoint	Pointer to the context of the elliptic curve point.
pECC	Pointer to the context of the elliptic cryptosystem.

Description

This function is declared in the ippcp.h file.

The function retrieves the coordinates of the point on the elliptic curve defined over a binary finite field GF(2^m) from the point context and allocates them in accordance with the set pointers pX and pY.

The elliptic curve domain parameters must be hitherto defined by one of the functions: ECCBSet or ECCBSetStd.

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 one of the contexts pointed by pX, pY, pPoint, or pECC is not valid.