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/* 
 *    MIRACL  C++ Header file ebrick2.h 
 * 
 *    AUTHOR  : M. Scott 
 *   
 *    PURPOSE : Definition of class EBrick2   
 *              Brickell et al's method for fast exponentiation with  
 *              precomputation - elliptic curve version GF(2^m) 
 *    NOTE    : Must be used in conjunction with big.cpp 
 *                 
 *    Copyright (c) 2000 Shamus Software Ltd. 
 */ 
 
#ifndef EBRICK2_H 
#define EBRICK2_H 
 
#include  
 
class EBrick2  
{  
    BOOL created; 
    ebrick2 B; 
public: 
    EBrick2(Big x,Big y,Big a2,Big a6,int m,int a,int b,int c,int nb)  
    {ebrick2_init(&B,x.getbig(),y.getbig(),a2.getbig(),a6.getbig(),m,a,b,c,nb); 
     created=TRUE;} 
     
    EBrick2(ebrick2 *b) {B=*b; created=FALSE;}  /* set structure */ 
 
    ebrick2 *get(void) {return &B;} /* get address of structure */ 
 
    int mul(Big &e,Big &x,Big &y) {int d=mul2_brick(&B,e.getbig(),x.getbig(),y.getbig()); return d;}        
 
    ~EBrick2() {if (created) ebrick2_end(&B);} 
}; 
 
#endif