Note: The publickey subsystem is used for managing publickeys on a server to which the client is already authenticated. To authenticate to a remote system using publickey authentication, use the ssh2_auth_pubkey_file() function instead.
Publickey Subsystem resource created by ssh2_publickey_init().
Publickey algorithm (e.g.): ssh-dss, ssh-rsa
Publickey blob as raw binary data
If the specified key already exists, should it be overwritten?
Associative array of attributes to assign to this public key. Refer to ietf-secsh-publickey-subsystem for a list of supported attributes. To mark an attribute as mandatory, precede its name with an asterisk. If the server is unable to support an attribute marked mandatory, it will abort the add process.
Example 1. Adding a publickey with ssh2_publickey_add()