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     40 
     41 /*
     42 //
     43 //  Purpose:
     44 //     Cryptography Primitive.
     45 //     EC over Prime Finite Field (setup/retrieve domain parameters)
     46 //
     47 //  Contents:
     48 //        ippsECCPGetOrderBitSize()
     49 //
     50 */
     51 
     52 #include "owndefs.h"
     53 #include "owncp.h"
     54 #include "pcpeccp.h"
     55 
     56 /*F*
     57 //    Name: ippsECCPGetOrderBitSize
     58 //
     59 // Purpose: Retrieve size of Base Point Order (in bits).
     60 //
     61 // Returns:                Reason:
     62 //    ippStsNullPtrErr        NULL == pEC
     63 //                            NULL == pBitSize
     64 //
     65 //    ippStsContextMatchErr   illegal pEC->idCtx
     66 //
     67 //    ippStsNoErr             no errors
     68 //
     69 // Parameters:
     70 //    pBitSize pointer to the size of base point order
     71 //    pEC      pointer to the EC context
     72 //
     73 *F*/
     74 IPPFUN(IppStatus, ippsECCPGetOrderBitSize,(int* pBitSize, IppsECCPState* pEC))
     75 {
     76    /* test pEC */
     77    IPP_BAD_PTR1_RET(pEC);
     78    /* use aligned EC context */
     79    pEC = (IppsGFpECState*)( IPP_ALIGNED_PTR(pEC, ECGFP_ALIGNMENT) );
     80    IPP_BADARG_RET(!ECP_TEST_ID(pEC), ippStsContextMatchErr);
     81 
     82    /* test pBitSize*/
     83    IPP_BAD_PTR1_RET(pBitSize);
     84 
     85    *pBitSize = ECP_ORDBITSIZE(pEC);
     86    return ippStsNoErr;
     87 }
     88