step ssh rekey


step ssh rekey -- rekey a SSH certificate using the SSH CA


step ssh rekey <ssh-cert> <ssh-key> [--out=<file>]
[--issuer=<name>] [--password-file=<file>] [--force]
[--offline] [--ca-config=<file>] [--ca-url=<uri>] [--root=<file>]


step ssh rekey command generates a new SSH Certificate and key using an existing SSH Certificate and key pair to authenticate and templatize the request. It writes the new certificate to disk - either overwriting ssh-cert or using new files when the --out=file flag is used.

Positional arguments

ssh-cert The ssh certificate to renew.

ssh-key The ssh certificate private key.


--out=file The new key file. Defaults to overwriting the ssh-key positional argument.

--provisioner=name, --issuer=name The provisioner name to use.

--provisioner-password-file=file The path to the file containing the password to decrypt the one-time token generating key.

--no-password Do not ask for a password to encrypt a private key. Sensitive key material will be written to disk unencrypted. This is not recommended. Requires --insecure flag.


-f, --force Force the overwrite of files without asking.

--sshpop-cert=chain Certificate (chain) in PEM format to store in the 'sshpop' header of a JWT.

--sshpop-key=file Private key file, used to sign a JWT, corresponding to the certificate that will be stored in the 'sshpop' header.

--offline Creates a certificate without contacting the certificate authority. Offline mode uses the configuration, certificates, and keys created with step ca init, but can accept a different configuration file using --ca-config flag.

--ca-config=file The certificate authority configuration file. Defaults to $(step path)/config/ca.json

--ca-url=URI URI of the targeted Step Certificate Authority.

--root=file The path to the PEM file used as the root certificate authority.

--context=name The context name to apply for the given command.


Rekey an ssh certificate:

$ step ssh rekey id_ecdsa

Rekey an ssh certificate creating id2_ecdsa,, and

$ step ssh rekey --out id2_ecdsa id_ecdsa