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NAME

       ssh_server_key_api -
           -behaviour(ssh_server_key_api).

DESCRIPTION

       Behaviour describing the API for public key handling of an SSH server. By implementing the
       callbacks defined in this behavior, the public key  handling  of  an  SSH  server  can  be
       customized.  By  default  the  SSH  application  implements this behavior with help of the
       standard OpenSSH files, see the  ssh(7) application manual.

DATA TYPES

       daemon_key_cb_options() =
           [{key_cb_private, term()} | ssh:daemon_option()]

              Options provided to ssh:daemon/2,3.

              The  option  list  given  in  the  key_cb  option  is  available   with   the   key
              key_cb_private.

EXPORTS

       Module:host_key(Algorithm, DaemonOptions) -> {ok, Key} | {error, Reason}

              Types:

                 Algorithm = ssh:pubkey_alg()
                   Host key algorithm.
                 DaemonOptions = daemon_key_cb_options()
                 PrivateKey = public_key:private_key() | crypto:engine_key_ref()
                   Private  key  of  the  host matching the Algorithm. It may be a reference to a
                   'ssh-rsa', rsa-sha2-* or 'ssh-dss' (NOT ecdsa) key stored in a loaded Engine.
                 Reason = term()

              Fetches the private key of the host.

       Module:is_auth_key(PublicUserKey, User, DaemonOptions) -> Result

              Types:

                 PublicUserKey = public_key:public_key()
                   Normally an RSA, DSA or ECDSA public key, but handling of  other  public  keys
                   can be added
                 User = string()
                   User owning the public key.
                 DaemonOptions = daemon_key_cb_options()
                 Result = boolean()

              Checks if the user key is authorized.