github.com/xfond/eth-implementation@v1.8.9-0.20180514135602-f6bc65fc6811/crypto/bn256/bn256_fast.go (about)

     1  // Copyright 2018 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  // +build amd64 arm64
    18  
    19  // Package bn256 implements the Optimal Ate pairing over a 256-bit Barreto-Naehrig curve.
    20  package bn256
    21  
    22  import "github.com/ethereum/go-ethereum/crypto/bn256/cloudflare"
    23  
    24  // G1 is an abstract cyclic group. The zero value is suitable for use as the
    25  // output of an operation, but cannot be used as an input.
    26  type G1 = bn256.G1
    27  
    28  // G2 is an abstract cyclic group. The zero value is suitable for use as the
    29  // output of an operation, but cannot be used as an input.
    30  type G2 = bn256.G2
    31  
    32  // PairingCheck calculates the Optimal Ate pairing for a set of points.
    33  func PairingCheck(a []*G1, b []*G2) bool {
    34  	return bn256.PairingCheck(a, b)
    35  }