forked from notaryproject/notary
/
keydbstore.go
51 lines (46 loc) · 1.43 KB
/
keydbstore.go
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package keydbstore
import (
"crypto"
"crypto/rand"
"fmt"
"io"
"github.com/Sirupsen/logrus"
"github.com/docker/notary/tuf/data"
"github.com/docker/notary/tuf/utils"
)
type activatingPrivateKey struct {
data.PrivateKey
activationFunc func(keyID string) error
}
func (a activatingPrivateKey) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) (signature []byte, err error) {
keyID := a.PrivateKey.ID()
sig, err := a.PrivateKey.Sign(rand, digest, opts)
if err == nil {
if activationErr := a.activationFunc(keyID); activationErr != nil {
logrus.Errorf("Key %s was just used to sign hash %s, error when trying to mark key as active: %s",
keyID, digest, activationErr.Error())
}
}
return sig, err
}
// helper function to generate private keys for the signer databases - does not implement RSA since that is not
// supported by the signer
func generatePrivateKey(algorithm string) (data.PrivateKey, error) {
var privKey data.PrivateKey
var err error
switch algorithm {
case data.ECDSAKey:
privKey, err = utils.GenerateECDSAKey(rand.Reader)
if err != nil {
return nil, fmt.Errorf("failed to generate EC key: %v", err)
}
case data.ED25519Key:
privKey, err = utils.GenerateED25519Key(rand.Reader)
if err != nil {
return nil, fmt.Errorf("failed to generate ED25519 key: %v", err)
}
default:
return nil, fmt.Errorf("private key type not supported for key generation: %s", algorithm)
}
return privKey, nil
}