version3/c/pair192.h

#ifndef PAIR192_ZZZ_H
#define PAIR192_ZZZ_H

#include "fp24_YYY.h"
#include "ecp4_ZZZ.h"
#include "ecp_ZZZ.h"


/* Pairing constants */

extern const BIG_XXX CURVE_Bnx_ZZZ; /**< BN curve x parameter */
extern const BIG_XXX CURVE_Cru_ZZZ; /**< BN curve Cube Root of Unity */

extern const BIG_XXX CURVE_W_ZZZ[2];	 /**< BN curve constant for GLV decomposition */
extern const BIG_XXX CURVE_SB_ZZZ[2][2]; /**< BN curve constant for GLV decomposition */
extern const BIG_XXX CURVE_WB_ZZZ[4];	 /**< BN curve constant for GS decomposition */
extern const BIG_XXX CURVE_BB_ZZZ[4][4]; /**< BN curve constant for GS decomposition */

/* Pairing function prototypes */
/**	@brief Calculate Miller loop for Optimal ATE pairing e(P,Q)
 *
	@param r FP24 result of the pairing calculation e(P,Q)
	@param P ECP4 instance, an element of G2
	@param Q ECP instance, an element of G1

 */
extern void PAIR_ZZZ_ate(FP24_YYY *r,ECP4_ZZZ *P,ECP_ZZZ *Q);
/**	@brief Calculate Miller loop for Optimal ATE double-pairing e(P,Q).e(R,S)
 *
	Faster than calculating two separate pairings
	@param r FP24 result of the pairing calculation e(P,Q).e(R,S), an element of GT
	@param P ECP4 instance, an element of G2
	@param Q ECP instance, an element of G1
	@param R ECP4 instance, an element of G2
	@param S ECP instance, an element of G1
 */
extern void PAIR_ZZZ_double_ate(FP24_YYY *r,ECP4_ZZZ *P,ECP_ZZZ *Q,ECP4_ZZZ *R,ECP_ZZZ *S);
/**	@brief Final exponentiation of pairing, converts output of Miller loop to element in GT
 *
	Here p is the internal modulus, and r is the group order
	@param x FP24, on exit = x^((p^12-1)/r)
 */
extern void PAIR_ZZZ_fexp(FP24_YYY *x);
/**	@brief Fast point multiplication of a member of the group G1 by a BIG number
 *
	May exploit endomorphism for speed.
	@param Q ECP member of G1.
	@param b BIG multiplier

 */
extern void PAIR_ZZZ_G1mul(ECP_ZZZ *Q,BIG_XXX b);
/**	@brief Fast point multiplication of a member of the group G2 by a BIG number
 *
	May exploit endomorphism for speed.
	@param P ECP4 member of G1.
	@param b BIG multiplier

 */
extern void PAIR_ZZZ_G2mul(ECP4_ZZZ *P,BIG_XXX b);
/**	@brief Fast raising of a member of GT to a BIG power
 *
	May exploit endomorphism for speed.
	@param x FP24 member of GT.
	@param b BIG exponent

 */
extern void PAIR_ZZZ_GTpow(FP24_YYY *x,BIG_XXX b);
/**	@brief Tests FP24 for membership of GT
 *
	@param x FP24 instance
	@return 1 if x is in GT, else return 0

 */
extern int PAIR_ZZZ_GTmember(FP24_YYY *x);


#endif