GFpECTstPoint¶
Checks if a point belongs to an elliptic curve.
Syntax¶
IppStatus ippsGFpECTstPoint(const IppsGFpECPoint* pP, IppECResult* pResult, IppsGFpECState* pEC);
Include Files¶
ippcp.h
Parameters¶
pP |
Pointer to the IppsGFpECPoint context. |
pResult |
Pointer to the result of the check. |
pEC |
Pointer to the context of the elliptic curve. |
Description¶
This function checks whether the given point belongs to the elliptic
curve over the finite field. The result of the testing is returned
in pResult and may have the following values:
ippECValid |
The point belongs to the curve. |
ippECPointIsAtInfinite |
The point is a point at infinity. |
ippECPointIsNotValid |
The point does not belong to the curve. |
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 any of the specified contexts does not match the operation. |
ippStsOutOfRangeErr |
Indicates an error condition if the coordinates of the point pP do not belong to the finite field over which the elliptic curve is initialized. |