The reserved field is currently unused and is ignored in this version of
the protocol.
-signature key contains the CA key used to sign the certificate.
-The valid key types for CA keys are ssh-rsa, ssh-dss and the ECDSA types
-ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521. "Chained"
-certificates, where the signature key type is a certificate type itself
-are NOT supported. Note that it is possible for a RSA certificate key to
-be signed by a DSS or ECDSA CA key and vice-versa.
+The signature key field contains the CA key used to sign the
+certificate. The valid key types for CA keys are ssh-rsa,
+ssh-dss, ssh-ed25519 and the ECDSA types ecdsa-sha2-nistp256,
+ecdsa-sha2-nistp384, ecdsa-sha2-nistp521. "Chained" certificates, where
+the signature key type is a certificate type itself are NOT supported.
+Note that it is possible for a RSA certificate key to be signed by a
+Ed25519 or ECDSA CA key and vice-versa.
signature is computed over all preceding fields from the initial string
up to, and including the signature key. Signatures are computed and
of this script will not be permitted if
this option is not present.
-$OpenBSD: PROTOCOL.certkeys,v 1.10 2016/05/03 10:27:59 djm Exp $
+$OpenBSD: PROTOCOL.certkeys,v 1.11 2017/05/16 16:54:05 djm Exp $