ECCPAddPoint¶
Computes the addition of two elliptic curve points over GF(p).
Syntax¶
IppStatus ippsECCPAddPoint(const IppsECCPPointState* pP, const IppsECCPPointState* pQ, IppsECCPPointState* pR, IppsECCPState* pECC);
Include Files¶
ippcp.h
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¶
The function calculates the addition of two elliptic curve points P
and Q over a finite field GF(p) 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: 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 is NULL. |
ippStsContextMatchErr |
Indicates an error condition if one of the contexts pointed by pP, pQ, pR, or pECC is not valid. |