alt_bn128_init.hpp

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#ifndef ALT_BN128_INIT_HPP_
#define ALT_BN128_INIT_HPP_
#include <libff/algebra/curves/public_params.hpp>
#include <libff/algebra/fields/fp.hpp>
#include <libff/algebra/fields/fp12_2over3over2.hpp>
#include <libff/algebra/fields/fp2.hpp>
#include <libff/algebra/fields/fp6_3over2.hpp>
 
namespace libff
{
 
const mp_size_t alt_bn128_r_bitcount = 254;
const mp_size_t alt_bn128_q_bitcount = 254;
 
const mp_size_t alt_bn128_r_limbs =
    (alt_bn128_r_bitcount + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
const mp_size_t alt_bn128_q_limbs =
    (alt_bn128_q_bitcount + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS;
 
extern bigint<alt_bn128_r_limbs> alt_bn128_modulus_r;
extern bigint<alt_bn128_q_limbs> alt_bn128_modulus_q;
 
typedef Fp_model<alt_bn128_r_limbs, alt_bn128_modulus_r> alt_bn128_Fr;
typedef Fp_model<alt_bn128_q_limbs, alt_bn128_modulus_q> alt_bn128_Fq;
typedef Fp2_model<alt_bn128_q_limbs, alt_bn128_modulus_q> alt_bn128_Fq2;
typedef Fp6_3over2_model<alt_bn128_q_limbs, alt_bn128_modulus_q> alt_bn128_Fq6;
typedef Fp12_2over3over2_model<alt_bn128_q_limbs, alt_bn128_modulus_q>
    alt_bn128_Fq12;
typedef alt_bn128_Fq12 alt_bn128_GT;
 
// parameters for Barreto--Naehrig curve E/Fq : y^2 = x^3 + b
extern alt_bn128_Fq alt_bn128_coeff_b;
// parameters for twisted Barreto--Naehrig curve E'/Fq2 : y^2 = x^3 + b/xi
extern alt_bn128_Fq2 alt_bn128_twist;
extern alt_bn128_Fq2 alt_bn128_twist_coeff_b;
extern alt_bn128_Fq alt_bn128_twist_mul_by_b_c0;
extern alt_bn128_Fq alt_bn128_twist_mul_by_b_c1;
extern alt_bn128_Fq2 alt_bn128_twist_mul_by_q_X;
extern alt_bn128_Fq2 alt_bn128_twist_mul_by_q_Y;
 
// parameters for pairing
extern bigint<alt_bn128_q_limbs> alt_bn128_ate_loop_count;
extern bool alt_bn128_ate_is_loop_count_neg;
extern bigint<12 * alt_bn128_q_limbs> alt_bn128_final_exponent;
extern bigint<alt_bn128_q_limbs> alt_bn128_final_exponent_z;
extern bool alt_bn128_final_exponent_is_z_neg;
 
void init_alt_bn128_params();
 
class alt_bn128_G1;
class alt_bn128_G2;
 
} // namespace libff
#endif // ALT_BN128_INIT_HPP_