add ed25519 support

This adds support for ed25519 keys for the following options

* create-private
* create-public
* sign-input
* verify-input

The format of the private key is purely PEM format and may change. But
as I did not find any documentation on that topic yet, I will keep it as
it is for the moment.

1 files changed, 3 insertions, 0 deletions

diff --git a/private_key.go b/private_key.go
index 42dba68..aa28e78 100644
--- a/private_key.go
+++ b/private_key.go
@@ -57,6 +57,8 @@ func create_private_key(cmd *Command, args []string) {
 		pk, err = pki.NewPrivateKeyEcdsa(FlagPrivateKeyGeneration.Curve)
 	case "rsa":
 		pk, err = pki.NewPrivateKeyRsa(FlagPrivateKeyGeneration.Size)
+	case "ed25519":
+		pk, err = pki.NewPrivateKeyEd25519()
 	default:
 		crash_with_help(cmd, ErrorInput, "Unknown private key type '%s'", FlagPrivateKeyGeneration.Type)
 	}
@@ -108,6 +110,7 @@ func checkPrivateKeyGeneration() error {
 		} else {
 			return fmt.Errorf("Length of %d is not allowed for rsa!", size)
 		}
+	case "ed25519":
 	default:
 		return fmt.Errorf("Type %s is unknown!", pk_type)
 	}