ECCPGetPoint
ECCPGetPoint
Retrieves coordinates of the point on the elliptic curve defined over GF(p).
Syntax
IppStatus ippsECCPGetPoint(IppsBigNumState*
pX
, IppsBigNumState*
pY
, const IppsECCPPointState*
pPoint
, IppsECCPState*
pECC
);
Include Files
ippcp.h
Parameters
- pX
- Pointer to thex-coordinate of the point on the elliptic curve.
- pY
- Pointer to they-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
The function retrieves the coordinates of the point on the elliptic curve defined over a prime finite field GF(
p
) 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:
ECCPSet
or ECCPSetStd
.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 isNULL.
- ippStsContextMatchErr
- Indicates an error condition if one of the contexts pointed bypX,pY,pPoint, orpECCis not valid.