GFpECNegPoint¶
Computes the inverse of a point.
Syntax¶
IppStatus ippsGFpECNegPoint(const IppsGFpECPoint* pP, IppsGFpECPoint* pR, IppsGFpECState* pEC);
Include Files¶
ippcp.h
Parameters¶
pP |
Pointer to the context of the given point on the elliptic curve. |
pR |
Pointer to the context of the resulting point on the elliptic curve. |
pEC |
Pointer to the context of the elliptic curve. |
Description¶
For a given point of the elliptic curve over the finite field, this
function computes the coordinates of the inverse point. The following
pseudocode represents this operation: R = 0 - P.
Return Values¶
ippStsNoErr |
Indicates no error. Any other value indicates an error or warning. |
ippStsNullPtrErr |
Indicates an error condition if any of the specified is NULL. |
ippStsContextMatchErr |
Indicates an error condition if any of the specified contexts does not match the operation. |
ippStsOutOfRangeErr |
Indicates an error condition if any of the specified points does not belong to the finite field over which the elliptic curve is initialized. |