class Net::SSH::Authentication::ED25519::PubKey

def self.read_keyblob(buffer)
  PubKey.new(buffer.read_string)
end

def initialize(data)
  @verify_key = ::Ed25519::VerifyKey.new(data)
end

def ssh_do_verify(sig, data, options = {})
  @verify_key.verify(sig, data)
end

def ssh_signature_type
  ssh_type
end

def ssh_type
  "ssh-ed25519"
end

def to_blob
  Net::SSH::Buffer.from(:mstring, "ssh-ed25519".dup, :string, @verify_key.to_bytes).to_s
end

def to_pem
  # TODO this is not pem
  ssh_type + [@verify_key.to_bytes].pack("m")
end