mirror of https://github.com/hashicorp/consul
49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package crypto
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"crypto/x509"
|
|
"encoding/pem"
|
|
"errors"
|
|
)
|
|
|
|
// ECDSA parsing errors.
|
|
var (
|
|
ErrNotECPublicKey = errors.New("Key is not a valid ECDSA public key")
|
|
ErrNotECPrivateKey = errors.New("Key is not a valid ECDSA private key")
|
|
)
|
|
|
|
// ParseECPrivateKeyFromPEM will parse a PEM encoded EC Private
|
|
// Key Structure.
|
|
func ParseECPrivateKeyFromPEM(key []byte) (*ecdsa.PrivateKey, error) {
|
|
block, _ := pem.Decode(key)
|
|
if block == nil {
|
|
return nil, ErrKeyMustBePEMEncoded
|
|
}
|
|
return x509.ParseECPrivateKey(block.Bytes)
|
|
}
|
|
|
|
// ParseECPublicKeyFromPEM will parse a PEM encoded PKCS1 or PKCS8 public key
|
|
func ParseECPublicKeyFromPEM(key []byte) (*ecdsa.PublicKey, error) {
|
|
|
|
block, _ := pem.Decode(key)
|
|
if block == nil {
|
|
return nil, ErrKeyMustBePEMEncoded
|
|
}
|
|
|
|
parsedKey, err := x509.ParsePKIXPublicKey(block.Bytes)
|
|
if err != nil {
|
|
cert, err := x509.ParseCertificate(block.Bytes)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
parsedKey = cert.PublicKey
|
|
}
|
|
|
|
pkey, ok := parsedKey.(*ecdsa.PublicKey)
|
|
if !ok {
|
|
return nil, ErrNotECPublicKey
|
|
}
|
|
return pkey, nil
|
|
}
|