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| |
| /* |
| // |
| // Purpose: |
| // Cryptography Primitive. |
| // EC over Prime Finite Field (EC Point operations) |
| // |
| // Contents: |
| // ippsECCPMulPointScalar() |
| // |
| */ |
| |
| #include "owndefs.h" |
| #include "owncp.h" |
| #include "pcpeccp.h" |
| |
| /*F* |
| // Name: ippsECCPMulPointScalar |
| // |
| // Purpose: Perforn EC point operation: R = k*P |
| // |
| // Returns: Reason: |
| // ippStsNullPtrErr NULL == pEC |
| // NULL == pP |
| // NULL == pK |
| // NULL == pR |
| // |
| // ippStsContextMatchErr illegal pEC->idCtx |
| // illegal pP->idCtx |
| // illegal pK->idCtx |
| // illegal pR->idCtx |
| // |
| // ippStsNoErr no errors |
| // |
| // Parameters: |
| // pP pointer to the source EC Point context |
| // pK pointer to the source BigNum multiplier context |
| // pR pointer to the resultant EC Point context |
| // pEC pointer to the ECCP context |
| // |
| *F*/ |
| IPPFUN(IppStatus, ippsECCPMulPointScalar,(const IppsECCPPointState* pP, |
| const IppsBigNumState* pK, |
| IppsECCPPointState* pR, |
| IppsECCPState* pEC)) |
| { |
| /* use aligned EC context */ |
| IPP_BAD_PTR1_RET(pEC); |
| pEC = (IppsGFpECState*)( IPP_ALIGNED_PTR(pEC, ECGFP_ALIGNMENT) ); |
| IPP_BADARG_RET(!ECP_TEST_ID(pEC), ippStsContextMatchErr); |
| |
| return ippsGFpECMulPoint(pP, pK, pR, pEC, (Ipp8u*)ECP_SBUFFER(pEC)); |
| } |
