diff --git a/synapse/config/auth.py b/synapse/config/auth.py
new file mode 100644
index 0000000000..2b3e2ce87b
--- /dev/null
+++ b/synapse/config/auth.py
@@ -0,0 +1,110 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015, 2016 OpenMarket Ltd
+# Copyright 2020 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from ._base import Config
+
+
+class AuthConfig(Config):
+ """Password and login configuration
+ """
+
+ section = "auth"
+
+ def read_config(self, config, **kwargs):
+ password_config = config.get("password_config", {})
+ if password_config is None:
+ password_config = {}
+
+ self.password_enabled = password_config.get("enabled", True)
+ self.password_localdb_enabled = password_config.get("localdb_enabled", True)
+ self.password_pepper = password_config.get("pepper", "")
+
+ # Password policy
+ self.password_policy = password_config.get("policy") or {}
+ self.password_policy_enabled = self.password_policy.get("enabled", False)
+
+ # User-interactive authentication
+ ui_auth = config.get("ui_auth") or {}
+ self.ui_auth_session_timeout = ui_auth.get("session_timeout", 0)
+
+ def generate_config_section(self, config_dir_path, server_name, **kwargs):
+ return """\
+ password_config:
+ # Uncomment to disable password login
+ #
+ #enabled: false
+
+ # Uncomment to disable authentication against the local password
+ # database. This is ignored if `enabled` is false, and is only useful
+ # if you have other password_providers.
+ #
+ #localdb_enabled: false
+
+ # Uncomment and change to a secret random string for extra security.
+ # DO NOT CHANGE THIS AFTER INITIAL SETUP!
+ #
+ #pepper: "EVEN_MORE_SECRET"
+
+ # Define and enforce a password policy. Each parameter is optional.
+ # This is an implementation of MSC2000.
+ #
+ policy:
+ # Whether to enforce the password policy.
+ # Defaults to 'false'.
+ #
+ #enabled: true
+
+ # Minimum accepted length for a password.
+ # Defaults to 0.
+ #
+ #minimum_length: 15
+
+ # Whether a password must contain at least one digit.
+ # Defaults to 'false'.
+ #
+ #require_digit: true
+
+ # Whether a password must contain at least one symbol.
+ # A symbol is any character that's not a number or a letter.
+ # Defaults to 'false'.
+ #
+ #require_symbol: true
+
+ # Whether a password must contain at least one lowercase letter.
+ # Defaults to 'false'.
+ #
+ #require_lowercase: true
+
+ # Whether a password must contain at least one lowercase letter.
+ # Defaults to 'false'.
+ #
+ #require_uppercase: true
+
+ ui_auth:
+ # The number of milliseconds to allow a user-interactive authentication
+ # session to be active.
+ #
+ # This defaults to 0, meaning the user is queried for their credentials
+ # before every action, but this can be overridden to alow a single
+ # validation to be re-used. This weakens the protections afforded by
+ # the user-interactive authentication process, by allowing for multiple
+ # (and potentially different) operations to use the same validation session.
+ #
+ # Uncomment below to allow for credential validation to last for 15
+ # seconds.
+ #
+ #session_timeout: 15000
+ """
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