C++程序  |  90行  |  3.31 KB

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/*
//
//  Purpose:
//     Cryptography Primitive.
//     EC over Prime Finite Field (setup/retrieve domain parameters)
//
//  Contents:
//        ippsECCPSetStd128r1()
//
*/

#include "owndefs.h"
#include "owncp.h"
#include "pcpeccp.h"

/*F*
//    Name: ippsECCPSetStd128r1
//
// Purpose: Set EC128r1 parameters
//
// Returns:                Reason:
//    ippStsNullPtrErr        NULL == pEC
//
//    ippStsContextMatchErr   illegal pEC->idCtx
//
//    ippStsNoErr             no errors
//
// Parameters:
//    pEC     pointer to the ECC context
//
*F*/
IPPFUN(IppStatus, ippsECCPSetStd128r1, (IppsECCPState* pEC))
{
   /* test pEC */
   IPP_BAD_PTR1_RET(pEC);
   /* use aligned EC context */
   pEC = (IppsGFpECState*)( IPP_ALIGNED_PTR(pEC, ECGFP_ALIGNMENT) );

   /* set domain parameters */
   return ECCPSetDP(ippsGFpMethod_pArb(),
                        BITS_BNU_CHUNK(128), secp128r1_p,
                        BITS_BNU_CHUNK(128), secp128r1_a,
                        BITS_BNU_CHUNK(128), secp128r1_b,
                        BITS_BNU_CHUNK(128), secp128r1_gx,
                        BITS_BNU_CHUNK(128), secp128r1_gy,
                        BITS_BNU_CHUNK(128), secp128r1_r,
                        secp128r1_h,
                        pEC);
}