forked from casdoor/casdoor
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
// Copyright 2021 The casbin Authors. 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 certificate
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"crypto/elliptic"
|
|
"crypto/rand"
|
|
"crypto/x509"
|
|
"encoding/pem"
|
|
"fmt"
|
|
)
|
|
|
|
// generateEccKey generates a public and private key pair.(NIST P-256)
|
|
func generateEccKey() (*ecdsa.PrivateKey, error) {
|
|
return ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
|
|
}
|
|
|
|
// encodeEccKey Return the input private key object as string type private key
|
|
func encodeEccKey(privateKey *ecdsa.PrivateKey) (string, error) {
|
|
x509Encoded, err := x509.MarshalECPrivateKey(privateKey)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
pemEncoded := pem.EncodeToMemory(&pem.Block{Type: "EC PRIVATE KEY", Bytes: x509Encoded})
|
|
return string(pemEncoded), nil
|
|
}
|
|
|
|
// decodeEccKey Return the entered private key string as a private key object that can be used
|
|
func decodeEccKey(pemEncoded string) (*ecdsa.PrivateKey, error) {
|
|
block, _ := pem.Decode([]byte(pemEncoded))
|
|
if block == nil {
|
|
return nil, fmt.Errorf("invalid PEM-encoded EC private key")
|
|
}
|
|
x509Encoded := block.Bytes
|
|
privateKey, err := x509.ParseECPrivateKey(x509Encoded)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return privateKey, nil
|
|
}
|