ECCBAddPoint

Computes the addition of two elliptic curve points over GF(2^m).

Syntax

IppStatus ippsECCBAddPoint(const IppsECCBPoint* pP, const IppsECCBPoint* pQ, IppsECCBPoint* pR, IppsECCBState* pECC);

Parameters

pP	Pointer to the elliptic curve point `P`.
pQ	Pointer to the elliptic curve point `Q`.
pR	Pointer to the elliptic curve point `R`.
pECC	Pointer to the context of the elliptic cryptosystem.

Description

This function is declared in the ippcp.h file.

The function calculates the addition of two elliptic curve points P and Q over a binary finite field GF(2^m) with the result in a point R such that R=P+Q.

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 pP, pQ, pR, or pECC is not valid.