github.com/lzy4123/fabric@v2.1.1+incompatible/bccsp/idemix/bridge/math.go (about)

     1  /*
     2  Copyright IBM Corp. All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  package bridge
     7  
     8  import (
     9  	"github.com/hyperledger/fabric-amcl/amcl/FP256BN"
    10  	"github.com/hyperledger/fabric/idemix"
    11  )
    12  
    13  // Big encapsulate an amcl big integer
    14  type Big struct {
    15  	E *FP256BN.BIG
    16  }
    17  
    18  func (b *Big) Bytes() ([]byte, error) {
    19  	return idemix.BigToBytes(b.E), nil
    20  }
    21  
    22  // Ecp encapsulate an amcl elliptic curve point
    23  type Ecp struct {
    24  	E *FP256BN.ECP
    25  }
    26  
    27  func (o *Ecp) Bytes() ([]byte, error) {
    28  	var res []byte
    29  	res = append(res, idemix.BigToBytes(o.E.GetX())...)
    30  	res = append(res, idemix.BigToBytes(o.E.GetY())...)
    31  
    32  	return res, nil
    33  }