github.com/braveheart12/insolar-09-08-19@v0.8.7/platformpolicy/internal/sign/provider.go (about)

     1  /*
     2   *    Copyright 2019 Insolar Technologies
     3   *
     4   *    Licensed under the Apache License, Version 2.0 (the "License");
     5   *    you may not use this file except in compliance with the License.
     6   *    You may obtain a copy of the License at
     7   *
     8   *        http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   *    Unless required by applicable law or agreed to in writing, software
    11   *    distributed under the License is distributed on an "AS IS" BASIS,
    12   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   *    See the License for the specific language governing permissions and
    14   *    limitations under the License.
    15   */
    16  
    17  package sign
    18  
    19  import (
    20  	"crypto"
    21  
    22  	"github.com/insolar/insolar/core"
    23  	"github.com/insolar/insolar/platformpolicy/internal/hash"
    24  )
    25  
    26  type ecdsaProvider struct {
    27  	HashProvider hash.AlgorithmProvider `inject:""`
    28  }
    29  
    30  func NewECDSAProvider() AlgorithmProvider {
    31  	return &ecdsaProvider{}
    32  }
    33  
    34  func (p *ecdsaProvider) Sign(privateKey crypto.PrivateKey) core.Signer {
    35  	return &ecdsaSignerWrapper{
    36  		privateKey: MustConvertPrivateKeyToEcdsa(privateKey),
    37  		hasher:     p.HashProvider.Hash512bits(),
    38  	}
    39  }
    40  
    41  func (p *ecdsaProvider) Verify(publicKey crypto.PublicKey) core.Verifier {
    42  	return &ecdsaVerifyWrapper{
    43  		publicKey: MustConvertPublicKeyToEcdsa(publicKey),
    44  		hasher:    p.HashProvider.Hash512bits(),
    45  	}
    46  }