mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
// Package derhelpers implements common functionality
|
|
// on DER encoded data
|
|
package derhelpers
|
|
|
|
import (
|
|
"crypto"
|
|
"crypto/ecdsa"
|
|
"crypto/rsa"
|
|
"crypto/x509"
|
|
|
|
cferr "github.com/cloudflare/cfssl/errors"
|
|
"golang.org/x/crypto/ed25519"
|
|
)
|
|
|
|
// ParsePrivateKeyDER parses a PKCS #1, PKCS #8, ECDSA, or Ed25519 DER-encoded
|
|
// private key. The key must not be in PEM format.
|
|
func ParsePrivateKeyDER(keyDER []byte) (key crypto.Signer, err error) {
|
|
generalKey, err := x509.ParsePKCS8PrivateKey(keyDER)
|
|
if err != nil {
|
|
generalKey, err = x509.ParsePKCS1PrivateKey(keyDER)
|
|
if err != nil {
|
|
generalKey, err = x509.ParseECPrivateKey(keyDER)
|
|
if err != nil {
|
|
generalKey, err = ParseEd25519PrivateKey(keyDER)
|
|
if err != nil {
|
|
// We don't include the actual error into
|
|
// the final error. The reason might be
|
|
// we don't want to leak any info about
|
|
// the private key.
|
|
return nil, cferr.New(cferr.PrivateKeyError,
|
|
cferr.ParseFailed)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
switch generalKey.(type) {
|
|
case *rsa.PrivateKey:
|
|
return generalKey.(*rsa.PrivateKey), nil
|
|
case *ecdsa.PrivateKey:
|
|
return generalKey.(*ecdsa.PrivateKey), nil
|
|
case ed25519.PrivateKey:
|
|
return generalKey.(ed25519.PrivateKey), nil
|
|
}
|
|
|
|
// should never reach here
|
|
return nil, cferr.New(cferr.PrivateKeyError, cferr.ParseFailed)
|
|
}
|