mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-03 10:49:58 +00:00
43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package x509
|
|
|
|
import (
|
|
"crypto/x509/pkix"
|
|
"encoding/asn1"
|
|
"errors"
|
|
"fmt"
|
|
)
|
|
|
|
// pkcs8 reflects an ASN.1, PKCS#8 PrivateKey. See
|
|
// ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-8/pkcs-8v1_2.asn.
|
|
type pkcs8 struct {
|
|
Version int
|
|
Algo pkix.AlgorithmIdentifier
|
|
PrivateKey []byte
|
|
// optional attributes omitted.
|
|
}
|
|
|
|
// ParsePKCS8PrivateKey parses an unencrypted, PKCS#8 private key. See
|
|
// http://www.rsa.com/rsalabs/node.asp?id=2130
|
|
func ParsePKCS8PrivateKey(der []byte) (key interface{}, err error) {
|
|
var privKey pkcs8
|
|
if _, err := asn1.Unmarshal(der, &privKey); err != nil {
|
|
return nil, err
|
|
}
|
|
switch {
|
|
case privKey.Algo.Algorithm.Equal(oidRSA):
|
|
key, err = ParsePKCS1PrivateKey(privKey.PrivateKey)
|
|
if err != nil {
|
|
return nil, errors.New("crypto/x509: failed to parse RSA private key embedded in PKCS#8: " + err.Error())
|
|
}
|
|
return key, nil
|
|
default:
|
|
return nil, fmt.Errorf("crypto/x509: PKCS#8 wrapping contained private key with unknown algorithm: %v", privKey.Algo.Algorithm)
|
|
}
|
|
|
|
panic("unreachable")
|
|
}
|