KM_EncodeECParams2M

#include“kmlib.h”

Windows library: Kmlib.lib

UNIX library: Libkmlib.a

typedef enum {
    ECBT_GnBasis,   /* Gaussian Normal Basis - parameters = 0,  0,  0 */
    ECBT_TpBasis,   /* Trinomial Basis - parameters = k,  0,  0 */
    ECBT_PpBasis    /* Pentanomial Basis - parameters = k1, k2, k3 */
} ECBasisType;
 
CK_RV KM_EncodeECParams2M(
    CK_SIZE m,
    ECBasisType basis,
    CK_SIZE  parameters[3],   
    CK_BYTE_PTR curveA,   CK_SIZE curveALen,
    CK_BYTE_PTR curveB,   CK_SIZE curveBLen,
    CK_BYTE_PTR curveSeed,CK_SIZE curveSeedLen,
    CK_BYTE_PTR baseX,    CK_SIZE baseXLen,
    CK_BYTE_PTR baseY,    CK_SIZE baseYLen,
    CK_BYTE_PTR bpOrder,  CK_SIZE bpOrderLen,
    CK_BYTE_PTR cofactor, CK_SIZE cofactorLen,
    CK_BYTE_PTR result,   CK_SIZE * resultLen
);

Do DER enc of ECC Domain Parameters 2^M

All long integer values are variable length big endian numbers with optional leading zeros, lengths are all in bytes.

Parameter	Description
M	Degree of field
basis	Should be ECBT_GnBasis or ECBT_TpBasis or ECBT_PpBasis
parameters	Array of three integers - values depend on basis ECBT_GnBasis - parameters = 0. 0. 0 ECBT_TpBasis - parameters = k. 0. 0 ECBT_PpBasis - parameters = k1.k2.k3
curveA	Elliptic Curve coefficient a
curveALen	Elliptic Curve coefficient a length
curveB	Elliptic Curve coefficient b
curveBLen	Elliptic Curve coefficient b length
curveSeed	Seed (optional may be NULL)
curveSeedLen	Seed length
baseX	Elliptic Curve point X coord
baseXLen	Elliptic Curve point X coord length
baseY	Elliptic Curve point Y coord
baseYLen	Elliptic Curve point Y coord length
bpOrder	Order n of the Base Point
bpOrderLen	Order n of the Base Point length
cofactor	The integer h = #E(Fq)/n (optional)
cofactorLen	h length
result	Resultant Encoding (length prediction supported if NULL)
resultLen	Buffer len/Length of resultant encoding
Return	Status of operation. CKR_OK if ok