forked from hyperledger/fabric
/
pk.go
65 lines (51 loc) · 1.5 KB
/
pk.go
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/*
Copyright IBM Corp. 2016 All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package ecies
import (
"crypto/ecdsa"
"crypto/rand"
"crypto/x509"
"io"
"github.com/hyperledger/fabric/core/crypto/primitives"
)
type publicKeyImpl struct {
pub *ecdsa.PublicKey
rand io.Reader
params *Params
}
func (pk *publicKeyImpl) GetRand() io.Reader {
return pk.rand
}
func (pk *publicKeyImpl) IsPublic() bool {
return true
}
type publicKeySerializerImpl struct{}
func (pks *publicKeySerializerImpl) ToBytes(key interface{}) ([]byte, error) {
if key == nil {
return nil, primitives.ErrInvalidNilKeyParameter
}
switch pk := key.(type) {
case *publicKeyImpl:
return x509.MarshalPKIXPublicKey(pk.pub)
default:
return nil, primitives.ErrInvalidPublicKeyType
}
}
func (pks *publicKeySerializerImpl) FromBytes(bytes []byte) (interface{}, error) {
key, err := x509.ParsePKIXPublicKey(bytes)
if err != nil {
return nil, err
}
// TODO: add params here
return &publicKeyImpl{key.(*ecdsa.PublicKey), rand.Reader, nil}, nil
}