github.com/igggame/nebulas-go@v2.1.0+incompatible/crypto/keystore/secp256k1/publickey.go (about)

     1  // Copyright (C) 2017 go-nebulas authors
     2  //
     3  // This file is part of the go-nebulas library.
     4  //
     5  // the go-nebulas library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // the go-nebulas library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  // GNU General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU General Public License
    16  // along with the go-nebulas library.  If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  
    19  package secp256k1
    20  
    21  import (
    22  	"github.com/nebulasio/go-nebulas/crypto/keystore"
    23  	"github.com/nebulasio/go-nebulas/crypto/utils"
    24  )
    25  
    26  // PublicKey ecdsa publickey
    27  type PublicKey struct {
    28  	pub []byte
    29  }
    30  
    31  // NewPublicKey generate PublicKey
    32  func NewPublicKey(pub []byte) *PublicKey {
    33  	ecdsaPub := &PublicKey{pub}
    34  	return ecdsaPub
    35  }
    36  
    37  // Algorithm algorithm name
    38  func (k *PublicKey) Algorithm() keystore.Algorithm {
    39  	return keystore.SECP256K1
    40  }
    41  
    42  // Encoded encoded to byte
    43  func (k *PublicKey) Encoded() ([]byte, error) {
    44  	return k.pub, nil
    45  }
    46  
    47  // Decode decode data to key
    48  func (k *PublicKey) Decode(data []byte) error {
    49  	k.pub = data
    50  	return nil
    51  }
    52  
    53  // Clear clear key content
    54  func (k *PublicKey) Clear() {
    55  	utils.ZeroBytes(k.pub)
    56  }
    57  
    58  // Verify verify ecdsa publickey
    59  func (k *PublicKey) Verify(hash []byte, signature []byte) (bool, error) {
    60  	return Verify(hash, signature, k.pub)
    61  }