From 3a5816259c5d21ad53b7e94d6d107de035846bc2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philipp=20H=C3=B6rist?= <philipp@hoerist.com>
Date: Tue, 28 Jan 2025 23:22:05 +0100
Subject: [PATCH] [pgp] Port to Gtk4 and add type annotations

---
 pgp/backend/python_gnupg.py |  63 +--
 pgp/backend/store.py        |  56 ++-
 pgp/gtk/choose_key.ui       |  48 +-
 pgp/gtk/config.py           | 114 +++--
 pgp/gtk/config.ui           |  22 +-
 pgp/gtk/key.py              | 164 ++++---
 pgp/modules/pgp_legacy.py   | 137 ++++--
 pgp/modules/util.py         |   7 +-
 pgp/plugin.py               |  97 ++--
 pyproject.toml              |   1 -
 typings/gnupg/__init__.pyi  | 899 ++++++++++++++++++++++++++++++++++++
 11 files changed, 1323 insertions(+), 285 deletions(-)
 create mode 100644 typings/gnupg/__init__.pyi

diff --git a/pgp/backend/python_gnupg.py b/pgp/backend/python_gnupg.py
index ed6b789..64c4a2f 100644
--- a/pgp/backend/python_gnupg.py
+++ b/pgp/backend/python_gnupg.py
@@ -20,6 +20,8 @@
 # You should have received a copy of the GNU General Public License
 # along with PGP Gajim Plugin. If not, see <http://www.gnu.org/licenses/>.
 
+from typing import Any
+
 import logging
 import os
 from functools import lru_cache
@@ -37,15 +39,14 @@ if logger.getEffectiveLevel() == logging.DEBUG:
     logger.setLevel(logging.DEBUG)
 
 
-class PGP(gnupg.GPG, metaclass=Singleton):
-    def __init__(self, binary, encoding=None):
-        super().__init__(gpgbinary=binary, use_agent=True)
+class PGP(metaclass=Singleton):
+    def __init__(self) -> None:
+        self._pgp = gnupg.GPG(use_agent=True)
+        self._pgp.decode_errors = "replace"
 
-        if encoding is not None:
-            self.encoding = encoding
-        self.decode_errors = "replace"
-
-    def encrypt(self, payload, recipients, always_trust=False):
+    def encrypt(
+        self, data: str, recipients: list[str], always_trust: bool = False
+    ) -> tuple[str, str]:
         if not always_trust:
             # check that we'll be able to encrypt
             result = self.get_key(recipients[0])
@@ -53,8 +54,8 @@ class PGP(gnupg.GPG, metaclass=Singleton):
                 if key["trust"] not in ("f", "u"):
                     return "", "NOT_TRUSTED " + key["keyid"][-8:]
 
-        result = super().encrypt(
-            payload.encode("utf8"), recipients, always_trust=always_trust
+        result = self._pgp.encrypt(
+            data.encode("utf8"), recipients, always_trust=always_trust
         )
 
         if result.ok:
@@ -64,23 +65,25 @@ class PGP(gnupg.GPG, metaclass=Singleton):
 
         return self._strip_header_footer(str(result)), error
 
-    def decrypt(self, payload):
-        data = self._add_header_footer(payload, "MESSAGE")
-        result = super().decrypt(data.encode("utf8"))
+    def encrypt_file(self, file: Any, recipients: list[str]) -> gnupg.Crypt:
+        return self._pgp.encrypt_file(file, recipients)
 
-        return result.data.decode("utf8")
+    def decrypt(self, payload: str) -> str:
+        data = self._add_header_footer(payload, "MESSAGE")
+        result = self._pgp.decrypt(data.encode("utf8"))
+        return str(result)
 
     @lru_cache(maxsize=8)
-    def sign(self, payload, key_id):
+    def sign(self, payload: str | None, key_id: str) -> str:
         if payload is None:
             payload = ""
-        result = super().sign(payload.encode("utf8"), keyid=key_id, detach=True)
+        result = self._pgp.sign(payload.encode("utf8"), keyid=key_id, detach=True)
 
-        if result.fingerprint:
+        if result:
             return self._strip_header_footer(str(result))
         raise SignError(result.status)
 
-    def verify(self, payload, signed):
+    def verify(self, payload: str | None, signed: str) -> str | None:
         # Hash algorithm is not transferred in the signed
         # presence stanza so try all algorithms.
         # Text name for hash algorithms from RFC 4880 - section 9.4
@@ -99,24 +102,30 @@ class PGP(gnupg.GPG, metaclass=Singleton):
                     self._add_header_footer(signed, "SIGNATURE"),
                 ]
             )
-            result = super().verify(data.encode("utf8"))
-            if result.valid:
+            result = self._pgp.verify(data.encode("utf8"))
+            if result:
                 return result.fingerprint
 
-    def get_key(self, key_id):
-        return super().list_keys(keys=[key_id])
+    def get_key(self, key_id: str) -> gnupg.ListKeys:
+        return self._pgp.list_keys(keys=[key_id])
 
-    def get_keys(self, secret=False):
-        keys = {}
-        result = super().list_keys(secret=secret)
+    def get_keys(self, secret: bool = False) -> dict[str, str]:
+        keys: dict[str, str] = {}
+        result = self._pgp.list_keys(secret=secret)
 
         for key in result:
             # Take first not empty uid
             keys[key["fingerprint"]] = next(uid for uid in key["uids"] if uid)
         return keys
 
+    def list_keys(
+        self, secret: bool = False, keys: list[str] | None = None, sigs: bool = False
+    ) -> list[str]:
+        res = self._pgp.list_keys(secret, keys, sigs)
+        return res.fingerprints
+
     @staticmethod
-    def _strip_header_footer(data):
+    def _strip_header_footer(data: str) -> str:
         """
         Remove header and footer from data
         """
@@ -137,7 +146,7 @@ class PGP(gnupg.GPG, metaclass=Singleton):
         return line
 
     @staticmethod
-    def _add_header_footer(data, type_):
+    def _add_header_footer(data: str, type_: str) -> str:
         """
         Add header and footer from data
         """
diff --git a/pgp/backend/store.py b/pgp/backend/store.py
index 7c01d05..812a939 100644
--- a/pgp/backend/store.py
+++ b/pgp/backend/store.py
@@ -14,9 +14,17 @@
 # You should have received a copy of the GNU General Public License
 # along with PGP Gajim Plugin. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import annotations
+
+from typing import Any
+
 import json
+import logging
+from collections.abc import Callable
 from pathlib import Path
 
+from nbxmpp import JID
+
 from gajim.common import app
 from gajim.common import configpaths
 
@@ -28,7 +36,13 @@ class KeyResolveError(Exception):
 
 
 class KeyStore:
-    def __init__(self, account, own_jid, log, list_keys_func):
+    def __init__(
+        self,
+        account: str,
+        own_jid: JID,
+        log: logging.LoggerAdapter[Any],
+        list_keys_func: Callable[..., list[str]],
+    ) -> None:
         self._list_keys_func = list_keys_func
         self._log = log
         self._account = account
@@ -66,15 +80,15 @@ class KeyStore:
             self._save_store()
 
     @staticmethod
-    def _empty_store():
+    def _empty_store() -> dict[str, Any]:
         return {
             "_version": CURRENT_STORE_VERSION,
             "own_key_data": None,
             "contact_key_data": {},
         }
 
-    def _migrate_v1_store(self):
-        keys = {}
+    def _migrate_v1_store(self) -> None:
+        keys: dict[str, str] = {}
         attached_keys = app.settings.get_account_setting(
             self._account, "attached_gpg_keys"
         )
@@ -98,7 +112,7 @@ class KeyStore:
         )
         self._log.info("Migration from store v1 was successful")
 
-    def _migrate_v2_store(self):
+    def _migrate_v2_store(self) -> None:
         own_key_data = self.get_own_key_data()
         if own_key_data is not None:
             own_key_id, own_key_user = (
@@ -111,7 +125,7 @@ class KeyStore:
             except KeyResolveError:
                 self._set_own_key_data_nosync(None)
 
-        prune_list = []
+        prune_list: list[str] = []
 
         for dict_key, key_data in self._store["contact_key_data"].items():
             try:
@@ -125,20 +139,18 @@ class KeyStore:
         self._store["_version"] = CURRENT_STORE_VERSION
         self._log.info("Migration from store v2 was successful")
 
-    def _save_store(self):
+    def _save_store(self) -> None:
         with self._store_path.open("w") as file:
             json.dump(self._store, file)
 
-    def _get_dict_key(self, jid):
+    def _get_dict_key(self, jid: str) -> str:
         return "%s-%s" % (self._account, jid)
 
-    def _resolve_short_id(self, short_id, has_secret=False):
-        candidates = self._list_keys_func(
-            secret=has_secret, keys=(short_id,)
-        ).fingerprints
-        if len(candidates) == 1:
-            return candidates[0]
-        elif len(candidates) > 1:
+    def _resolve_short_id(self, short_id: str, has_secret: bool = False) -> str:
+        fingerprints = self._list_keys_func(secret=has_secret, keys=[short_id])
+        if len(fingerprints) == 1:
+            return fingerprints[0]
+        elif len(fingerprints) > 1:
             self._log.critical(
                 "Key collision during migration. Key ID is %s. Removing binding...",
                 repr(short_id),
@@ -150,11 +162,11 @@ class KeyStore:
             )
         raise KeyResolveError
 
-    def set_own_key_data(self, key_data):
+    def set_own_key_data(self, key_data: tuple[str, str] | None) -> None:
         self._set_own_key_data_nosync(key_data)
         self._save_store()
 
-    def _set_own_key_data_nosync(self, key_data):
+    def _set_own_key_data_nosync(self, key_data: tuple[str, str] | None) -> None:
         if key_data is None:
             self._store["own_key_data"] = None
         else:
@@ -163,19 +175,21 @@ class KeyStore:
                 "key_user": key_data[1],
             }
 
-    def get_own_key_data(self):
+    def get_own_key_data(self) -> dict[str, str] | None:
         return self._store["own_key_data"]
 
-    def get_contact_key_data(self, jid):
+    def get_contact_key_data(self, jid: str) -> dict[str, str] | None:
         key_ids = self._store["contact_key_data"]
         dict_key = self._get_dict_key(jid)
         return key_ids.get(dict_key)
 
-    def set_contact_key_data(self, jid, key_data):
+    def set_contact_key_data(self, jid: str, key_data: tuple[str, str] | None) -> None:
         self._set_contact_key_data_nosync(jid, key_data)
         self._save_store()
 
-    def _set_contact_key_data_nosync(self, jid, key_data):
+    def _set_contact_key_data_nosync(
+        self, jid: str, key_data: tuple[str, str] | None
+    ) -> None:
         key_ids = self._store["contact_key_data"]
         dict_key = self._get_dict_key(jid)
         if key_data is None:
diff --git a/pgp/gtk/choose_key.ui b/pgp/gtk/choose_key.ui
index 8e91fce..c1e5268 100644
--- a/pgp/gtk/choose_key.ui
+++ b/pgp/gtk/choose_key.ui
@@ -1,42 +1,31 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.22.1 -->
 <interface>
-  <requires lib="gtk+" version="3.20"/>
+  <requires lib="gtk" version="4.0"/>
   <object class="GtkListStore" id="liststore">
     <columns>
-      <!-- column-name keyid -->
       <column type="gchararray"/>
-      <!-- column-name contactname -->
       <column type="gchararray"/>
     </columns>
   </object>
   <object class="GtkBox" id="box">
-    <property name="width_request">500</property>
-    <property name="height_request">300</property>
-    <property name="visible">True</property>
-    <property name="can_focus">False</property>
-    <property name="border_width">18</property>
     <property name="orientation">vertical</property>
     <property name="spacing">6</property>
     <child>
       <object class="GtkScrolledWindow">
-        <property name="visible">True</property>
-        <property name="can_focus">True</property>
-        <property name="vexpand">True</property>
-        <property name="shadow_type">in</property>
-        <child>
+        <property name="focusable">1</property>
+        <property name="vexpand">1</property>
+        <property name="hexpand">1</property>
+        <property name="child">
           <object class="GtkTreeView" id="keys_treeview">
-            <property name="visible">True</property>
-            <property name="can_focus">True</property>
+            <property name="focusable">1</property>
             <property name="model">liststore</property>
             <property name="search_column">1</property>
-            <signal name="cursor-changed" handler="_on_row_changed" swapped="no"/>
             <child internal-child="selection">
               <object class="GtkTreeSelection"/>
             </child>
             <child>
               <object class="GtkTreeViewColumn">
-                <property name="title" translatable="yes">Key ID</property>
+                <property name="title" translatable="1">Key ID</property>
                 <property name="sort_order">descending</property>
                 <child>
                   <object class="GtkCellRendererText"/>
@@ -48,7 +37,7 @@
             </child>
             <child>
               <object class="GtkTreeViewColumn">
-                <property name="title" translatable="yes">Contact Name</property>
+                <property name="title" translatable="1">Contact Name</property>
                 <property name="sort_column_id">1</property>
                 <child>
                   <object class="GtkCellRendererText"/>
@@ -59,13 +48,24 @@
               </object>
             </child>
           </object>
+        </property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkBox" id="button_box">
+        <property name="orientation">horizontal</property>
+        <property name="spacing">6</property>
+        <child>
+          <object class="GtkButton" id="cancel_button">
+            <property name="label">Cancel</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkButton" id="ok_button">
+            <property name="label">OK</property>
+          </object>
         </child>
       </object>
-      <packing>
-        <property name="expand">True</property>
-        <property name="fill">True</property>
-        <property name="position">0</property>
-      </packing>
     </child>
   </object>
 </interface>
diff --git a/pgp/gtk/config.py b/pgp/gtk/config.py
index b407c42..19310eb 100644
--- a/pgp/gtk/config.py
+++ b/pgp/gtk/config.py
@@ -14,89 +14,111 @@
 # You should have received a copy of the GNU General Public License
 # along with PGP Gajim Plugin. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import annotations
+
+from typing import cast
+from typing import TYPE_CHECKING
+
 from pathlib import Path
 
-from gi.repository import Gdk
 from gi.repository import GLib
 from gi.repository import Gtk
 
 from gajim.common import app
+from gajim.gtk.util import SignalManager
+from gajim.gtk.widgets import GajimAppWindow
 from gajim.plugins.helpers import get_builder
 from gajim.plugins.plugins_i18n import _
 
-from pgp.gtk.key import ChooseGPGKeyDialog
+from ..modules.pgp_legacy import PGPLegacy
+from .key import ChooseGPGKeyDialog
+
+if TYPE_CHECKING:
+    from ..plugin import PGPPlugin
 
 
-class PGPConfigDialog(Gtk.ApplicationWindow):
-    def __init__(self, plugin, parent):
-        Gtk.ApplicationWindow.__init__(self)
-        self.set_application(app.app)
-        self.set_show_menubar(False)
-        self.set_title(_("PGP Configuration"))
-        self.set_transient_for(parent)
-        self.set_resizable(True)
-        self.set_type_hint(Gdk.WindowTypeHint.DIALOG)
-        self.set_destroy_with_parent(True)
+class ConfigBuilder(Gtk.Builder):
+    config_box: Gtk.Box
+    sidebar: Gtk.StackSidebar
+    stack: Gtk.Stack
+
+
+class PGPConfigDialog(GajimAppWindow):
+    def __init__(self, plugin: PGPPlugin, transient: Gtk.Window) -> None:
+
+        GajimAppWindow.__init__(
+            self,
+            name="PGPConfigDialog",
+            title=_("PGP Configuration"),
+            default_width=600,
+            default_height=500,
+            transient_for=transient,
+            modal=True,
+        )
 
         ui_path = Path(__file__).parent
-        self._ui = get_builder(ui_path.resolve() / "config.ui")
+        self._ui = cast(
+            ConfigBuilder, get_builder(str(ui_path.resolve() / "config.ui"))
+        )
 
-        self.add(self._ui.config_box)
-
-        self._ui.connect_signals(self)
+        self.set_child(self._ui.config_box)
 
         self._plugin = plugin
 
         for account in app.settings.get_active_accounts():
-            page = Page(plugin, account)
+            module = cast(
+                PGPLegacy,
+                app.get_client(account).get_module("PGPLegacy"),  # pyright: ignore
+            )
+            page = Page(module)
             self._ui.stack.add_titled(page, account, app.get_account_label(account))
 
-        self.show_all()
+        self.show()
+
+    def _cleanup(self) -> None:
+        del self._plugin
 
 
-class Page(Gtk.Box):
-    def __init__(self, plugin, account):
+class Page(Gtk.Box, SignalManager):
+    def __init__(self, module: PGPLegacy) -> None:
+        SignalManager.__init__(self)
         Gtk.Box.__init__(self, orientation=Gtk.Orientation.VERTICAL)
 
-        self._client = app.get_client(account)
-        self._plugin = plugin
+        self._module = module
+
         self._label = Gtk.Label()
         self._button = Gtk.Button(label=_("Assign Key"))
-        self._button.get_style_context().add_class("suggested-action")
+        self._button.add_css_class("suggested-action")
         self._button.set_halign(Gtk.Align.CENTER)
         self._button.set_margin_top(18)
-        self._button.connect("clicked", self._on_assign)
+        self._connect(self._button, "clicked", self._on_assign)
 
         self._load_key()
-        self.add(self._label)
-        self.add(self._button)
-        self.show_all()
+        self.append(self._label)
+        self.append(self._button)
 
-    def _on_assign(self, _button):
-        backend = self._client.get_module("PGPLegacy").pgp_backend
-        secret_keys = backend.get_keys(secret=True)
-        dialog = ChooseGPGKeyDialog(secret_keys, self.get_toplevel())
-        dialog.connect("response", self._on_response)
+    def _on_assign(self, _button: Gtk.Button) -> None:
+        secret_keys = self._module.pgp_backend.get_keys(secret=True)
+        ChooseGPGKeyDialog(
+            secret_keys, cast(Gtk.Window, self.get_root()), self._on_response
+        )
 
-    def _load_key(self):
-        key_data = self._client.get_module("PGPLegacy").get_own_key_data()
+    def _load_key(self) -> None:
+        key_data = self._module.get_own_key_data()
         if key_data is None:
             self._set_key(None)
         else:
             self._set_key((key_data["key_id"], key_data["key_user"]))
 
-    def _on_response(self, dialog, response):
-        if response != Gtk.ResponseType.OK:
-            return
-
-        if dialog.selected_key is None:
-            self._client.get_module("PGPLegacy").set_own_key_data(None)
+    def _on_response(self, key: tuple[str, str] | None) -> None:
+        if key is None:
+            self._module.set_own_key_data(None)
             self._set_key(None)
         else:
-            self._client.get_module("PGPLegacy").set_own_key_data(dialog.selected_key)
-            self._set_key(dialog.selected_key)
+            self._module.set_own_key_data(key)
+            self._set_key(key)
 
-    def _set_key(self, key_data):
+    def _set_key(self, key_data: tuple[str, str] | None) -> None:
         if key_data is None:
             self._label.set_text(_("No key assigned"))
         else:
@@ -104,3 +126,9 @@ class Page(Gtk.Box):
             self._label.set_markup(
                 "<b><tt>%s</tt> %s</b>" % (key_id, GLib.markup_escape_text(key_user))
             )
+
+    def do_unroot(self) -> None:
+        Gtk.Box.do_unroot(self)
+        self._disconnect_all()
+        del self._module
+        app.check_finalize(self)
diff --git a/pgp/gtk/config.ui b/pgp/gtk/config.ui
index bdafb29..c81e3fc 100644
--- a/pgp/gtk/config.ui
+++ b/pgp/gtk/config.ui
@@ -1,41 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.22.1 -->
 <interface>
-  <requires lib="gtk+" version="3.20"/>
+  <requires lib="gtk" version="4.0"/>
   <object class="GtkBox" id="config_box">
-    <property name="visible">True</property>
-    <property name="can_focus">False</property>
     <property name="spacing">12</property>
     <child>
       <object class="GtkStackSidebar" id="sidebar">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
         <property name="stack">stack</property>
       </object>
-      <packing>
-        <property name="expand">False</property>
-        <property name="fill">True</property>
-        <property name="position">0</property>
-      </packing>
     </child>
     <child>
       <object class="GtkStack" id="stack">
         <property name="width_request">400</property>
         <property name="height_request">350</property>
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="hexpand">True</property>
-        <property name="border_width">18</property>
+        <property name="hexpand">1</property>
         <property name="transition_type">crossfade</property>
         <child>
           <placeholder/>
         </child>
       </object>
-      <packing>
-        <property name="expand">False</property>
-        <property name="fill">True</property>
-        <property name="position">1</property>
-      </packing>
     </child>
   </object>
 </interface>
diff --git a/pgp/gtk/key.py b/pgp/gtk/key.py
index 46d9426..551e835 100644
--- a/pgp/gtk/key.py
+++ b/pgp/gtk/key.py
@@ -14,27 +14,60 @@
 # You should have received a copy of the GNU General Public License
 # along with PGP Gajim Plugin. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import annotations
+
+from typing import Any
+from typing import cast
+from typing import TYPE_CHECKING
+
+from collections.abc import Callable
 from pathlib import Path
 
 from gi.repository import GLib
 from gi.repository import Gtk
+from nbxmpp import JID
 
 from gajim.common import app
+from gajim.gtk.widgets import GajimAppWindow
 from gajim.plugins.helpers import get_builder
 from gajim.plugins.plugins_i18n import _
 
+from ..modules.pgp_legacy import PGPLegacy
 
-class KeyDialog(Gtk.Dialog):
-    def __init__(self, plugin, account, jid, transient):
-        super().__init__(title=_("Assign key for %s") % jid, destroy_with_parent=True)
+if TYPE_CHECKING:
+    from ..plugin import PGPPlugin
 
-        self.set_transient_for(transient)
-        self.set_resizable(True)
-        self.set_default_size(450, -1)
+
+class ChooseKeyBuilder(Gtk.Builder):
+    liststore: Gtk.ListStore
+    box: Gtk.Box
+    keys_treeview: Gtk.TreeView
+    cancel_button: Gtk.Button
+    ok_button: Gtk.Button
+
+
+class KeyDialog(GajimAppWindow):
+    def __init__(
+        self, plugin: PGPPlugin, account: str, jid: JID, transient: Gtk.Window
+    ) -> None:
+
+        GajimAppWindow.__init__(
+            self,
+            name="PGPKeyDialog",
+            title=_("Assign key for %s") % jid,
+            default_width=450,
+            transient_for=transient,
+            modal=True,
+        )
+
+        self.window.set_resizable(True)
 
         self._plugin = plugin
-        self._jid = jid
-        self._client = app.get_client(account)
+        self._jid = str(jid)
+        self._module = cast(
+            PGPLegacy,
+            app.get_client(account).get_module("PGPLegacy"),  # pyright: ignore
+        )
 
         self._label = Gtk.Label()
 
@@ -42,45 +75,43 @@ class KeyDialog(Gtk.Dialog):
         self._assign_button.get_style_context().add_class("suggested-action")
         self._assign_button.set_halign(Gtk.Align.CENTER)
         self._assign_button.set_margin_top(18)
-        self._assign_button.connect("clicked", self._choose_key)
+        self._connect(self._assign_button, "clicked", self._choose_key)
 
         box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
-        box.set_border_width(18)
-        box.add(self._label)
-        box.add(self._assign_button)
+        box.append(self._label)
+        box.append(self._assign_button)
 
-        area = self.get_content_area()
-        area.pack_start(box, True, True, 0)
+        self.set_child(box)
 
         self._load_key()
-        self.show_all()
+        self.show()
 
-    def _choose_key(self, *args):
-        backend = self._client.get_module("PGPLegacy").pgp_backend
-        dialog = ChooseGPGKeyDialog(backend.get_keys(), self)
-        dialog.connect("response", self._on_response)
+    def _cleanup(self) -> None:
+        del self._plugin
+        del self._module
 
-    def _load_key(self):
-        key_data = self._client.get_module("PGPLegacy").get_contact_key_data(self._jid)
+    def _choose_key(self, _button: Gtk.Button) -> None:
+        ChooseGPGKeyDialog(
+            self._module.pgp_backend.get_keys(), self.window, self._on_response
+        )
+
+    def _load_key(self) -> None:
+        key_data = self._module.get_contact_key_data(self._jid)
         if key_data is None:
             self._set_key(None)
         else:
-            self._set_key(key_data.values())
+            key_id, key_user = key_data.values()
+            self._set_key((key_id, key_user))
 
-    def _on_response(self, dialog, response):
-        if response != Gtk.ResponseType.OK:
-            return
-
-        if dialog.selected_key is None:
-            self._client.get_module("PGPLegacy").set_contact_key_data(self._jid, None)
+    def _on_response(self, key: tuple[str, str] | None) -> None:
+        if key is None:
+            self._module.set_contact_key_data(self._jid, None)
             self._set_key(None)
         else:
-            self._client.get_module("PGPLegacy").set_contact_key_data(
-                self._jid, dialog.selected_key
-            )
-            self._set_key(dialog.selected_key)
+            self._module.set_contact_key_data(self._jid, key)
+            self._set_key(key)
 
-    def _set_key(self, key_data):
+    def _set_key(self, key_data: tuple[str, str] | None) -> None:
         if key_data is None:
             self._label.set_text(_("No key assigned"))
         else:
@@ -90,49 +121,56 @@ class KeyDialog(Gtk.Dialog):
             )
 
 
-class ChooseGPGKeyDialog(Gtk.Dialog):
-    def __init__(self, secret_keys, transient_for):
-        Gtk.Dialog.__init__(
-            self, title=_("Assign PGP Key"), transient_for=transient_for
+class ChooseGPGKeyDialog(GajimAppWindow):
+    def __init__(
+        self,
+        secret_keys: dict[str, str],
+        transient: Gtk.Window,
+        callback: Callable[[tuple[str, str] | None], None],
+    ) -> None:
+
+        GajimAppWindow.__init__(
+            self,
+            name="PGPChooseKeyDialog",
+            title=_("Assign PGP Key"),
+            default_width=450,
+            default_height=400,
+            transient_for=transient,
+            modal=True,
         )
 
         secret_keys[_("None")] = _("None")
 
-        self.set_position(Gtk.WindowPosition.CENTER_ON_PARENT)
-        self.set_resizable(True)
-        self.set_default_size(500, 300)
-
-        self.add_button(_("Cancel"), Gtk.ResponseType.CANCEL)
-        self.add_button(_("OK"), Gtk.ResponseType.OK)
+        self.window.set_resizable(True)
 
+        self._callback = callback
         self._selected_key = None
 
         ui_path = Path(__file__).parent
-        self._ui = get_builder(ui_path.resolve() / "choose_key.ui")
+        self._ui = cast(
+            ChooseKeyBuilder, get_builder(str(ui_path.resolve() / "choose_key.ui"))
+        )
 
-        self._ui.keys_treeview = self._ui.keys_treeview
+        self._connect(self._ui.cancel_button, "clicked", self._on_cancel)
+        self._connect(self._ui.ok_button, "clicked", self._on_ok)
+        self._connect(self._ui.keys_treeview, "cursor-changed", self._on_row_changed)
 
-        model = self._ui.keys_treeview.get_model()
+        model = cast(Gtk.ListStore, self._ui.keys_treeview.get_model())
         model.set_sort_func(1, self._sort)
 
-        model = self._ui.keys_treeview.get_model()
         for key_id in secret_keys.keys():
             model.append((key_id, secret_keys[key_id]))
 
-        self.get_content_area().add(self._ui.box)
+        self.set_child(self._ui.box)
+        self.show()
 
-        self._ui.connect_signals(self)
-
-        self.connect_after("response", self._on_response)
-
-        self.show_all()
-
-    @property
-    def selected_key(self):
-        return self._selected_key
+    def _cleanup(self) -> None:
+        del self._callback
 
     @staticmethod
-    def _sort(model, iter1, iter2, _data):
+    def _sort(
+        model: Gtk.TreeModel, iter1: Gtk.TreeIter, iter2: Gtk.TreeIter, _data: Any
+    ) -> int:
         value1 = model[iter1][1]
         value2 = model[iter2][1]
         if value1 == _("None"):
@@ -143,10 +181,14 @@ class ChooseGPGKeyDialog(Gtk.Dialog):
             return -1
         return 1
 
-    def _on_response(self, _dialog, _response):
-        self.destroy()
+    def _on_cancel(self, _button: Gtk.Button) -> None:
+        self.close()
 
-    def _on_row_changed(self, treeview):
+    def _on_ok(self, _button: Gtk.Button) -> None:
+        self._callback(self._selected_key)
+        self.close()
+
+    def _on_row_changed(self, treeview: Gtk.TreeView) -> None:
         selection = treeview.get_selection()
         model, iter_ = selection.get_selected()
         if iter_ is None:
diff --git a/pgp/modules/pgp_legacy.py b/pgp/modules/pgp_legacy.py
index 8c88113..ff8534d 100644
--- a/pgp/modules/pgp_legacy.py
+++ b/pgp/modules/pgp_legacy.py
@@ -14,21 +14,30 @@
 # You should have received a copy of the GNU General Public License
 # along with PGP Gajim Plugin. If not, see <http://www.gnu.org/licenses/>.
 
+from typing import Any
+
 import os
 import threading
 import time
+from collections.abc import Callable
 
 import nbxmpp
 from gi.repository import GLib
+from nbxmpp.client import Client as nbxmppClient
 from nbxmpp.namespaces import Namespace
 from nbxmpp.protocol import Message
+from nbxmpp.protocol import Presence
 from nbxmpp.structs import EncryptionData
+from nbxmpp.structs import MessageProperties
+from nbxmpp.structs import PresenceProperties
 from nbxmpp.structs import StanzaHandler
 
 from gajim.common import app
+from gajim.common.client import Client
 from gajim.common.const import Trust
 from gajim.common.events import MessageNotSent
 from gajim.common.modules.base import BaseModule
+from gajim.common.modules.httpupload import HTTPFileTransfer
 from gajim.common.structs import OutgoingMessage
 from gajim.plugins.plugins_i18n import _
 
@@ -68,7 +77,7 @@ ALLOWED_TAGS = [
 
 
 class PGPLegacy(BaseModule):
-    def __init__(self, client):
+    def __init__(self, client: Client) -> None:
         BaseModule.__init__(self, client, plugin=True)
 
         self.handlers = [
@@ -92,26 +101,26 @@ class PGPLegacy(BaseModule):
         self._store = KeyStore(
             self._account, self.own_jid, self._log, self._pgp.list_keys
         )
-        self._always_trust = []
-        self._presence_fingerprint_store = {}
+        self._always_trust: list[str] = []
+        self._presence_fingerprint_store: dict[str, str] = {}
 
     @property
-    def pgp_backend(self):
+    def pgp_backend(self) -> PGP:
         return self._pgp
 
-    def set_own_key_data(self, *args, **kwargs):
-        return self._store.set_own_key_data(*args, **kwargs)
+    def set_own_key_data(self, keydata: tuple[str, str] | None) -> None:
+        return self._store.set_own_key_data(keydata)
 
-    def get_own_key_data(self, *args, **kwargs):
-        return self._store.get_own_key_data(*args, **kwargs)
+    def get_own_key_data(self) -> dict[str, str] | None:
+        return self._store.get_own_key_data()
 
-    def set_contact_key_data(self, *args, **kwargs):
-        return self._store.set_contact_key_data(*args, **kwargs)
+    def set_contact_key_data(self, jid: str, key_data: tuple[str, str] | None) -> None:
+        return self._store.set_contact_key_data(jid, key_data)
 
-    def get_contact_key_data(self, *args, **kwargs):
-        return self._store.get_contact_key_data(*args, **kwargs)
+    def get_contact_key_data(self, jid: str) -> dict[str, str] | None:
+        return self._store.get_contact_key_data(jid)
 
-    def has_valid_key_assigned(self, jid):
+    def has_valid_key_assigned(self, jid: str) -> bool:
         key_data = self.get_contact_key_data(jid)
         if key_data is None:
             return False
@@ -126,9 +135,13 @@ class PGPLegacy(BaseModule):
 
         raise KeyMismatch(announced_fingerprint)
 
-    def _on_presence_received(self, _con, _stanza, properties):
+    def _on_presence_received(
+        self, _client: nbxmppClient, _stanza: Presence, properties: PresenceProperties
+    ):
         if properties.signed is None:
             return
+
+        assert properties.jid is not None
         jid = properties.jid.bare
 
         fingerprint = self._pgp.verify(properties.status, properties.signed)
@@ -160,13 +173,16 @@ class PGPLegacy(BaseModule):
             )
             return
 
-    def _message_received(self, _con, stanza, properties):
+    def _message_received(
+        self, _client: nbxmppClient, stanza: Message, properties: MessageProperties
+    ) -> None:
         if not properties.is_pgp_legacy or properties.from_muc:
             return
 
         remote_jid = properties.remote_jid
         self._log.info("Message received from: %s", remote_jid)
 
+        assert properties.pgp_legacy is not None
         payload = self._pgp.decrypt(properties.pgp_legacy)
         prepare_stanza(stanza, payload)
 
@@ -174,7 +190,12 @@ class PGPLegacy(BaseModule):
             protocol=ENCRYPTION_NAME, key="Unknown", trust=Trust.UNDECIDED
         )
 
-    def encrypt_message(self, con, message: OutgoingMessage, callback):
+    def encrypt_message(
+        self,
+        client: Client,
+        message: OutgoingMessage,
+        callback: Callable[[OutgoingMessage], None],
+    ) -> None:
         if not message.get_text():
             callback(message)
             return
@@ -187,15 +208,24 @@ class PGPLegacy(BaseModule):
             return
 
         always_trust = key_id in self._always_trust
-        self._encrypt(con, message, [key_id, own_key_id], callback, always_trust)
+        self._encrypt(client, message, [key_id, own_key_id], callback, always_trust)
 
     def _encrypt(
-        self, con, message: OutgoingMessage, keys, callback, always_trust: bool
-    ):
-        result = self._pgp.encrypt(message.get_text(), keys, always_trust)
+        self,
+        client: Client,
+        message: OutgoingMessage,
+        recipients: list[str],
+        callback: Callable[[OutgoingMessage], None],
+        always_trust: bool,
+    ) -> None:
+
+        text = message.get_text()
+        assert text is not None
+
+        result = self._pgp.encrypt(text, recipients, always_trust)
         encrypted_payload, error = result
         if error:
-            self._handle_encrypt_error(con, error, message, keys, callback)
+            self._handle_encrypt_error(client, error, message, recipients, callback)
             return
 
         self._cleanup_stanza(message)
@@ -212,30 +242,41 @@ class PGPLegacy(BaseModule):
         callback(message)
 
     def _handle_encrypt_error(
-        self, con, error: str, message: OutgoingMessage, keys, callback
-    ):
+        self,
+        client: Client,
+        error: str,
+        message: OutgoingMessage,
+        recipients: list[str],
+        callback: Callable[[OutgoingMessage], None],
+    ) -> None:
         if error.startswith("NOT_TRUSTED"):
 
-            def on_yes(checked):
+            def on_yes(checked: bool) -> None:
                 if checked:
-                    self._always_trust.append(keys[0])
-                self._encrypt(con, message, keys, callback, True)
+                    self._always_trust.append(recipients[0])
+                self._encrypt(client, message, recipients, callback, True)
 
-            def on_no():
-                self._raise_message_not_sent(con, message, error)
+            def on_no() -> None:
+                self._raise_message_not_sent(client, message, error)
 
             app.ged.raise_event(PGPNotTrusted(on_yes=on_yes, on_no=on_no))
 
         else:
-            self._raise_message_not_sent(con, message, error)
+            self._raise_message_not_sent(client, message, error)
 
     @staticmethod
-    def _raise_message_not_sent(con, message: OutgoingMessage, error: str):
+    def _raise_message_not_sent(
+        client: Client, message: OutgoingMessage, error: str
+    ) -> None:
+
+        text = message.get_text()
+        assert text is not None
+
         app.ged.raise_event(
             MessageNotSent(
-                client=con,
+                client=client,
                 jid=str(message.contact.jid),
-                message=message.get_text(),
+                message=text,
                 error=_("Encryption error: %s") % error,
                 time=time.time(),
             )
@@ -250,7 +291,7 @@ class PGPLegacy(BaseModule):
         )
         stanza.addChild(node=eme_node)
 
-    def sign_presence(self, presence, status):
+    def sign_presence(self, presence: nbxmpp.Presence, status: str) -> None:
         key_data = self.get_own_key_data()
         if key_data is None:
             self._log.warning("No own key id found, can’t sign presence")
@@ -266,7 +307,7 @@ class PGPLegacy(BaseModule):
         presence.setTag(Namespace.SIGNED + " x").setData(result)
 
     @staticmethod
-    def _get_info_message():
+    def _get_info_message() -> str:
         msg = "[This message is *encrypted* (See :XEP:`27`)]"
         lang = os.getenv("LANG")
         if lang is not None and not lang.startswith("en"):
@@ -274,7 +315,7 @@ class PGPLegacy(BaseModule):
             msg = _("[This message is *encrypted* (See :XEP:`27`)]") + " (" + msg + ")"
         return msg
 
-    def _get_key_ids(self, jid):
+    def _get_key_ids(self, jid: str) -> tuple[str, str]:
         key_data = self.get_contact_key_data(jid)
         if key_data is None:
             raise NoKeyIdFound("No key id found for %s" % jid)
@@ -301,21 +342,25 @@ class PGPLegacy(BaseModule):
                 stanza.addChild(node=node)
         message.set_stanza(stanza)
 
-    def encrypt_file(self, file, callback):
+    def encrypt_file(
+        self, transfer: HTTPFileTransfer, callback: Callable[[HTTPFileTransfer], None]
+    ) -> None:
         thread = threading.Thread(
-            target=self._encrypt_file_thread, args=(file, callback)
+            target=self._encrypt_file_thread, args=(transfer, callback)
         )
         thread.daemon = True
         thread.start()
 
-    def _encrypt_file_thread(self, file, callback):
+    def _encrypt_file_thread(
+        self, transfer: HTTPFileTransfer, callback: Callable[[HTTPFileTransfer], None]
+    ) -> None:
         try:
-            key_id, own_key_id = self._get_key_ids(file.contact.jid)
+            key_id, own_key_id = self._get_key_ids(str(transfer.contact.jid))
         except NoKeyIdFound as error:
             self._log.warning(error)
             return
 
-        stream = open(file.path, "rb")
+        stream = open(transfer.path, "rb")
         encrypted = self._pgp.encrypt_file(stream, [key_id, own_key_id])
         stream.close()
 
@@ -323,15 +368,15 @@ class PGPLegacy(BaseModule):
             GLib.idle_add(self._on_file_encryption_error, encrypted.status)
             return
 
-        file.size = len(encrypted.data)
-        file.set_uri_transform_func(lambda uri: "%s.pgp" % uri)
-        file.set_encrypted_data(encrypted.data)
-        GLib.idle_add(callback, file)
+        transfer.size = len(encrypted.data)
+        transfer.set_uri_transform_func(lambda uri: "%s.pgp" % uri)
+        transfer.set_encrypted_data(encrypted.data)
+        GLib.idle_add(callback, transfer)
 
     @staticmethod
-    def _on_file_encryption_error(error):
+    def _on_file_encryption_error(error: str) -> None:
         app.ged.raise_event(PGPFileEncryptionError(error=error))
 
 
-def get_instance(*args, **kwargs):
+def get_instance(*args: Any, **kwargs: Any) -> tuple[PGPLegacy, str]:
     return PGPLegacy(*args, **kwargs), "PGPLegacy"
diff --git a/pgp/modules/util.py b/pgp/modules/util.py
index f6fc17a..334b39d 100644
--- a/pgp/modules/util.py
+++ b/pgp/modules/util.py
@@ -17,23 +17,24 @@
 import os
 import subprocess
 
+from nbxmpp import Message
 from nbxmpp.namespaces import Namespace
 
 
-def prepare_stanza(stanza, plaintext):
+def prepare_stanza(stanza: Message, plaintext: str) -> None:
     delete_nodes(stanza, "encrypted", Namespace.ENCRYPTED)
     delete_nodes(stanza, "body")
     stanza.setBody(plaintext)
 
 
-def delete_nodes(stanza, name, namespace=None):
+def delete_nodes(stanza: Message, name: str, namespace: str | None = None) -> None:
     nodes = stanza.getTags(name, namespace=namespace)
     for node in nodes:
         stanza.delChild(node)
 
 
 def find_gpg():
-    def _search(binary):
+    def _search(binary: str) -> bool:
         if os.name == "nt":
             gpg_cmd = binary + " -h >nul 2>&1"
         else:
diff --git a/pgp/plugin.py b/pgp/plugin.py
index 91b460c..ea0d299 100644
--- a/pgp/plugin.py
+++ b/pgp/plugin.py
@@ -14,15 +14,25 @@
 # You should have received a copy of the GNU General Public License
 # along with PGP Gajim Plugin. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import annotations
+
+from typing import Any
+from typing import TYPE_CHECKING
+
 import logging
 import os
-import sys
+from collections.abc import Callable
 from functools import partial
 
+import nbxmpp
 from packaging.version import Version as V
 
 from gajim.common import app
 from gajim.common import ged
+from gajim.common.client import Client
+from gajim.common.modules.httpupload import HTTPFileTransfer
+from gajim.common.structs import OutgoingMessage
+from gajim.gtk.control import ChatControl
 from gajim.gtk.dialogs import ConfirmationCheckDialog
 from gajim.gtk.dialogs import DialogButton
 from gajim.gtk.dialogs import SimpleDialog
@@ -32,17 +42,23 @@ from gajim.plugins.plugins_i18n import _
 from pgp.exceptions import KeyMismatch
 from pgp.gtk.config import PGPConfigDialog
 from pgp.gtk.key import KeyDialog
+from pgp.modules.events import PGPFileEncryptionError
+from pgp.modules.events import PGPNotTrusted
 from pgp.modules.util import find_gpg
 
+if TYPE_CHECKING:
+    from pgp.modules.pgp_legacy import PGPLegacy
+
+
 ENCRYPTION_NAME = "PGP"
 
 log = logging.getLogger("gajim.p.pgplegacy")
 
-ERROR = False
+error = False
 try:
     import gnupg
 except ImportError:
-    ERROR = True
+    error = True
 else:
     # We need https://pypi.python.org/pypi/python-gnupg
     # but https://pypi.python.org/pypi/gnupg shares the same package name.
@@ -53,31 +69,27 @@ else:
     v_gnupg = gnupg.__version__
     if V(v_gnupg) < V("0.3.8") or V(v_gnupg) > V("1.0.0"):
         log.error("We need python-gnupg >= 0.3.8")
-        ERROR = True
+        error = True
 
-ERROR_MSG = None
+error_msg = None
 BINARY = find_gpg()
 log.info("Found GPG executable: %s", BINARY)
 
-if BINARY is None or ERROR:
+if BINARY is None or error:
     if os.name == "nt":
-        ERROR_MSG = _("Please install GnuPG / Gpg4win")
+        error_msg = _("Please install GnuPG / Gpg4win")
     else:
-        ERROR_MSG = _("Please install python-gnupg and gnupg")
-else:
-    from pgp.backend.python_gnupg import PGP
-    from pgp.modules import pgp_legacy
+        error_msg = _("Please install python-gnupg and gnupg")
 
 
 class PGPPlugin(GajimPlugin):
 
     def init(self):
-        # pylint: disable=attribute-defined-outside-init
         self.description = _("PGP encryption as per XEP-0027")
-        if ERROR_MSG:
+        if error_msg:
             self.activatable = False
             self.config_dialog = None
-            self.available_text = ERROR_MSG
+            self.available_text = error_msg
             return
 
         self.config_dialog = partial(PGPConfigDialog, self)
@@ -91,6 +103,8 @@ class PGPPlugin(GajimPlugin):
             "send-presence": (self._on_send_presence, None),
         }
 
+        from pgp.modules import pgp_legacy
+
         self.modules = [pgp_legacy]
 
         self.events_handlers = {
@@ -98,40 +112,36 @@ class PGPPlugin(GajimPlugin):
             "pgp-file-encryption-error": (ged.PRECORE, self._on_file_encryption_error),
         }
 
-        encoding = "utf8" if sys.platform == "linux" else None
-        self._pgp = PGP(BINARY, encoding=encoding)
-
     @staticmethod
-    def get_pgp_module(account):
-        return app.get_client(account).get_module("PGPLegacy")
+    def get_pgp_module(account: str) -> PGPLegacy:
+        return app.get_client(account).get_module("PGPLegacy")  # pyright: ignore
 
-    def activate(self):
+    def activate(self) -> None:
         pass
 
-    def deactivate(self):
+    def deactivate(self) -> None:
         pass
 
-    @staticmethod
-    def activate_encryption(_chat_control):
+    def activate_encryption(self, chat_control: ChatControl) -> bool:
         return True
 
     @staticmethod
-    def _encryption_state(_chat_control, state):
+    def _encryption_state(_chat_control: ChatControl, state: dict[str, Any]) -> None:
         state["visible"] = True
         state["authenticated"] = True
 
-    def _on_encryption_dialog(self, chat_control):
+    def _on_encryption_dialog(self, chat_control: ChatControl):
         account = chat_control.account
         jid = chat_control.contact.jid
         transient = app.window
         KeyDialog(self, account, jid, transient)
 
-    def _on_send_presence(self, account, presence):
+    def _on_send_presence(self, account: str, presence: nbxmpp.Presence) -> None:
         status = presence.getStatus()
         self.get_pgp_module(account).sign_presence(presence, status)
 
     @staticmethod
-    def _on_not_trusted(event):
+    def _on_not_trusted(event: PGPNotTrusted) -> None:
         ConfirmationCheckDialog(
             _("Untrusted PGP key"),
             _(
@@ -148,14 +158,14 @@ class PGPPlugin(GajimPlugin):
             ],
         ).show()
 
-    @staticmethod
-    def _before_sendmessage(chat_control):
+    def _before_sendmessage(self, chat_control: ChatControl) -> None:
         account = chat_control.account
-        jid = chat_control.contact.jid
+        jid = str(chat_control.contact.jid)
+
+        pgp = self.get_pgp_module(account)
 
-        client = app.get_client(account)
         try:
-            valid = client.get_module("PGPLegacy").has_valid_key_assigned(jid)
+            valid = pgp.has_valid_key_assigned(jid)
         except KeyMismatch as announced_key_id:
             SimpleDialog(
                 _("PGP Key mismatch"),
@@ -174,20 +184,29 @@ class PGPPlugin(GajimPlugin):
                 _("No OpenPGP key is assigned to this contact."),
             )
             chat_control.sendmessage = False
-        elif client.get_module("PGPLegacy").get_own_key_data() is None:
+        elif pgp.get_own_key_data() is None:
             SimpleDialog(
                 _("No OpenPGP key assigned"),
                 _("No OpenPGP key is assigned to your account."),
             )
             chat_control.sendmessage = False
 
-    def _encrypt_message(self, conn, event, callback):
-        account = conn.name
-        self.get_pgp_module(account).encrypt_message(conn, event, callback)
+    def _encrypt_message(
+        self,
+        client: Client,
+        event: OutgoingMessage,
+        callback: Callable[[OutgoingMessage], None],
+    ):
+        self.get_pgp_module(client.name).encrypt_message(client, event, callback)
 
-    def encrypt_file(self, file, account, callback):
-        self.get_pgp_module(account).encrypt_file(file, callback)
+    def encrypt_file(
+        self,
+        transfer: HTTPFileTransfer,
+        account: str,
+        callback: Callable[[HTTPFileTransfer], None],
+    ):
+        self.get_pgp_module(account).encrypt_file(transfer, callback)
 
     @staticmethod
-    def _on_file_encryption_error(event):
+    def _on_file_encryption_error(event: PGPFileEncryptionError) -> None:
         SimpleDialog(_("Error"), event.error)
diff --git a/pyproject.toml b/pyproject.toml
index 98235f1..4920346 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,6 @@ exclude = [
   ".git",
   ".venv",
   "openpgp/*",
-  "pgp/*",
 ]
 
 [tool.ruff]
diff --git a/typings/gnupg/__init__.pyi b/typings/gnupg/__init__.pyi
new file mode 100644
index 0000000..a3b6ea0
--- /dev/null
+++ b/typings/gnupg/__init__.pyi
@@ -0,0 +1,899 @@
+"""
+This type stub file was generated by pyright.
+"""
+
+from typing import Any
+
+__version__: str = ...
+__author__: str = ...
+__date__: str = ...
+
+class StatusHandler:
+    """
+    The base class for handling status messages from `gpg`.
+    """
+
+    on_data_failure = ...
+    def __init__(self, gpg: GPG) -> None:
+        """
+        Initialize an instance.
+
+        Args:
+            gpg (GPG): The :class:`GPG` instance in use.
+        """
+        ...
+
+    def handle_status(self, key: str, value: str) -> None:
+        """
+        Handle status messages from the `gpg` child process. These are lines of the format
+
+            [GNUPG:] <key> <value>
+
+        Args:
+            key (str): Identifies what the status message is.
+            value (str): Identifies additional data, which differs depending on the key.
+        """
+        ...
+
+class Verify(StatusHandler):
+    """
+    This class handles status messages during signature verificaton.
+    """
+
+    TRUST_EXPIRED: int = ...
+    TRUST_UNDEFINED: int = ...
+    TRUST_NEVER: int = ...
+    TRUST_MARGINAL: int = ...
+    TRUST_FULLY: int = ...
+    TRUST_ULTIMATE: int = ...
+    TRUST_LEVELS: dict[str, int] = ...
+    GPG_SYSTEM_ERROR_CODES: dict[int, str] = ...
+    GPG_ERROR_CODES: dict[int, str] = ...
+    returncode = ...
+    valid: bool = ...
+    fingerprint: str | None = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def __nonzero__(self) -> bool: ...
+
+    __bool__ = ...
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class ImportResult(StatusHandler):
+    """
+    This class handles status messages during key import.
+    """
+
+    counts = ...
+    returncode = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def __nonzero__(self) -> bool: ...
+
+    __bool__ = ...
+    ok_reason: dict[str, str] = ...
+    problem_reason: dict[str, str] = ...
+    def handle_status(self, key: str, value: str) -> None: ...
+    def summary(self) -> str:
+        """
+        Return a summary indicating how many keys were imported and how many were not imported.
+        """
+        ...
+
+ESCAPE_PATTERN = ...
+BASIC_ESCAPES = ...
+
+class SendResult(StatusHandler):
+    """
+    This class handles status messages during key sending.
+    """
+
+    returncode = ...
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class SearchKeys(StatusHandler, list[dict[Any, Any]]):
+    """
+    This class handles status messages during key search.
+    """
+
+    UID_INDEX = ...
+    FIELDS = ...
+    returncode = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def get_fields(self, args: Any) -> dict[str, Any]:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+    def pub(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+    def uid(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class ListKeys(SearchKeys):
+    """
+    This class handles status messages during listing keys and signatures.
+
+    Handle pub and uid (relating the latter to the former).
+
+    We don't care about (info from GnuPG DETAILS file):
+
+    crt = X.509 certificate
+    crs = X.509 certificate and private key available
+    uat = user attribute (same as user id except for field 10).
+    sig = signature
+    rev = revocation signature
+    pkd = public key data (special field format, see below)
+    grp = reserved for gpgsm
+    rvk = revocation key
+    """
+
+    UID_INDEX = ...
+    FIELDS = ...
+    fingerprints: list[str] = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def key(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+    sec = ...
+    def fpr(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+    def grp(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+    def sub(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+    def ssb(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+    def sig(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+class ScanKeys(ListKeys):
+    """
+    This class handles status messages during scanning keys.
+    """
+
+    def sub(self, args: Any) -> None:
+        """
+        Internal method used to update the instance from a `gpg` status message.
+        """
+        ...
+
+class TextHandler: ...
+
+_INVALID_KEY_REASONS = ...
+
+class Crypt(Verify, TextHandler):
+    """
+    This class handles status messages during encryption and decryption.
+    """
+
+    ok: bool = ...
+    status: str = ...
+    data: bytes = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def __nonzero__(self) -> bool: ...
+
+    __bool__ = ...
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class GenKey(StatusHandler):
+    """
+    This class handles status messages during key generation.
+    """
+
+    returncode = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def __nonzero__(self) -> bool: ...
+
+    __bool__ = ...
+    def __str__(self) -> str: ...
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class AddSubkey(StatusHandler):
+    """
+    This class handles status messages during subkey addition.
+    """
+
+    returncode = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def __nonzero__(self) -> bool: ...
+
+    __bool__ = ...
+    def __str__(self) -> str: ...
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class ExportResult(GenKey):
+    """
+    This class handles status messages during key export.
+    """
+
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class DeleteResult(StatusHandler):
+    """
+    This class handles status messages during key deletion.
+    """
+
+    returncode = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def __str__(self) -> str: ...
+
+    problem_reason = ...
+    def handle_status(self, key: str, value: str) -> None: ...
+    def __nonzero__(self) -> bool: ...
+
+    __bool__ = ...
+
+class TrustResult(DeleteResult):
+    """
+    This class handles status messages during key trust setting.
+    """
+
+    ...
+
+class Sign(StatusHandler, TextHandler):
+    """
+    This class handles status messages during signing.
+    """
+
+    returncode = ...
+    fingerprint: str | None = ...
+    status: str | None = ...
+    def __init__(self, gpg: GPG) -> None: ...
+    def __nonzero__(self) -> bool: ...
+
+    __bool__ = ...
+    def handle_status(self, key: str, value: str) -> None: ...
+
+class AutoLocateKey(StatusHandler):
+    """
+    This class handles status messages during key auto-locating.
+    fingerprint: str
+    key_length: int
+    created_at: date
+    email: str
+    email_real_name: str
+    """
+
+    def __init__(self, gpg: GPG) -> None: ...
+    def handle_status(self, key: str, value: str) -> None: ...
+    def pub(self, args: Any) -> None:
+        """
+        Internal method to handle the 'pub' status message.
+        `pub` message contains the fingerprint of the public key, its type and its creation date.
+        """
+        ...
+
+    def uid(self, args: Any) -> None: ...
+    def sub(self, args: Any) -> None: ...
+    def fpr(self, args: Any) -> None: ...
+
+VERSION_RE = ...
+HEX_DIGITS_RE = ...
+PUBLIC_KEY_RE = ...
+
+class GPG:
+    """
+    This class provides a high-level programmatic interface for `gpg`.
+    """
+
+    error_map = ...
+    encoding: str = ...
+    decode_errors: str = ...
+    buffer_size = ...
+    result_map = ...
+    def __init__(
+        self,
+        gpgbinary: str = ...,
+        gnupghome: str | None = ...,
+        verbose: bool = ...,
+        use_agent: bool = ...,
+        keyring: str | list[str] | None = ...,
+        options: list[str] | None = ...,
+        secret_keyring: str | list[str] | None = ...,
+        env: dict[str, str] | None = ...,
+    ) -> None:
+        """Initialize a GPG process wrapper.
+
+        Args:
+            gpgbinary (str): A pathname for the GPG binary to use.
+
+            gnupghome (str): A pathname to where we can find the public and private keyrings. The default is
+                             whatever `gpg` defaults to.
+
+            keyring (str|list): The name of alternative keyring file to use, or a list of such keyring files. If
+                                specified, the default keyring is not used.
+
+            options (list): A list of additional options to pass to the GPG binary.
+
+            secret_keyring (str|list): The name of an alternative secret keyring file to use, or a list of such
+                                       keyring files.
+
+            env (dict): A dict of environment variables to be used for the GPG subprocess.
+        """
+        ...
+
+    def make_args(self, args: list[str], passphrase: str) -> list[str]:
+        """
+        Make a list of command line elements for GPG. The value of ``args``
+        will be appended. The ``passphrase`` argument needs to be True if
+        a passphrase will be sent to `gpg`, else False.
+
+        Args:
+            args (list[str]): A list of arguments.
+            passphrase (str): The passphrase to use.
+        """
+        ...
+
+    def is_valid_file(self, fileobj: Any) -> bool:
+        """
+        A simplistic check for a file-like object.
+
+        Args:
+            fileobj (object): The object to test.
+        Returns:
+            bool: ``True`` if it's a file-like object, else ``False``.
+        """
+        ...
+
+    def sign(self, message: str | bytes, **kwargs: Any) -> Sign:
+        """
+        Sign a message. This method delegates most of the work to the `sign_file()` method.
+
+        Args:
+            message (str|bytes): The data to sign.
+            kwargs (dict): Keyword arguments, which are passed to `sign_file()`:
+
+                * keyid (str): The key id of the signer.
+
+                * passphrase (str): The passphrase for the key.
+
+                * clearsign (bool): Whether to use clear signing.
+
+                * detach (bool): Whether to produce a detached signature.
+
+                * binary (bool): Whether to produce a binary signature.
+
+                * output (str): The path to write a detached signature to.
+
+                * extra_args (list[str]): Additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def set_output_without_confirmation(self, args: list[str], output: str) -> None:
+        """
+        If writing to a file which exists, avoid a confirmation message by
+        updating the *args* value in place to set the output path and avoid
+        any cpmfirmation prompt.
+
+        Args:
+            args (list[str]): A list of arguments.
+            output (str): The path to the outpur file.
+        """
+        ...
+
+    def is_valid_passphrase(self, passphrase: str) -> bool:
+        """
+        Confirm that the passphrase doesn't contain newline-type characters - it is passed in a pipe to `gpg`,
+        and so not checking could lead to spoofing attacks by passing arbitrary text after passphrase and newline.
+
+        Args:
+            passphrase (str): The passphrase to test.
+
+        Returns:
+            bool: ``True`` if it's a valid passphrase, else ``False``.
+        """
+        ...
+
+    def sign_file(
+        self,
+        fileobj_or_path: Any,
+        keyid: str | None = ...,
+        passphrase: str | None = ...,
+        clearsign: bool = ...,
+        detach: bool = ...,
+        binary: bool = ...,
+        output: str | None = ...,
+        extra_args: list[str] | None = ...,
+    ) -> Sign:
+        """
+        Sign data in a file or file-like object.
+
+        Args:
+            fileobj_or_path (str|file): The file or file-like object to sign.
+
+            keyid (str): The key id of the signer.
+
+            passphrase (str): The passphrase for the key.
+
+            clearsign (bool): Whether to use clear signing.
+
+            detach (bool): Whether to produce a detached signature.
+
+            binary (bool): Whether to produce a binary signature.
+
+            output (str): The path to write a detached signature to.
+
+            extra_args (list[str]): Additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def verify(self, data: str | bytes, **kwargs: Any) -> Verify:
+        """
+        Verify the signature on the contents of the string *data*. This method delegates most of the work to
+        `verify_file()`.
+
+        Args:
+            data (str|bytes): The data to verify.
+            kwargs (dict): Keyword arguments, which are passed to `verify_file()`:
+
+                * fileobj_or_path (str|file): A path to a signature, or a file-like object containing one.
+
+                * data_filename (str): If the signature is a detached one, the path to the data that was signed.
+
+                * close_file (bool): If a file-like object is passed in, whether to close it.
+
+                * extra_args (list[str]): Additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def verify_file(
+        self,
+        fileobj_or_path: Any,
+        data_filename: str | None = ...,
+        close_file: bool = ...,
+        extra_args: list[str] | None = ...,
+    ) -> Verify:
+        """
+        Verify a signature.
+
+        Args:
+            fileobj_or_path (str|file): A path to a signature, or a file-like object containing one.
+
+            data_filename (str): If the signature is a detached one, the path to the data that was signed.
+
+            close_file (bool): If a file-like object is passed in, whether to close it.
+
+            extra_args (list[str]): Additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def verify_data(
+        self, sig_filename: str, data: str | bytes, extra_args: list[str] | None = ...
+    ) -> Verify:
+        """
+        Verify the signature in sig_filename against data in memory
+
+        Args:
+            sig_filename (str): The path to a signature.
+
+            data (str|bytes): The data to be verified.
+
+            extra_args (list[str]): Additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def import_keys(
+        self,
+        key_data: str | bytes,
+        extra_args: list[str] | None = ...,
+        passphrase: str | None = ...,
+    ) -> ImportResult:
+        """
+        Import the key_data into our keyring.
+
+        Args:
+            key_data (str|bytes): The key data to import.
+
+            passphrase (str): The passphrase to use.
+
+            extra_args (list[str]): Additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def import_keys_file(self, key_path: str, **kwargs: Any) -> ImportResult:
+        """
+        Import the key data in key_path into our keyring.
+
+        Args:
+            key_path (str): A path to the key data to be imported.
+        """
+        ...
+
+    def recv_keys(self, keyserver: str, *keyids: str, **kwargs: Any) -> ImportResult:
+        """
+        Import one or more keys from a keyserver.
+
+        Args:
+            keyserver (str): The key server hostname.
+
+            keyids (str): A list of key ids to receive.
+        """
+        ...
+
+    def send_keys(self, keyserver: str, *keyids: str, **kwargs: Any) -> SendResult:
+        """
+        Send one or more keys to a keyserver.
+
+        Args:
+            keyserver (str): The key server hostname.
+
+            keyids (list[str]): A list of key ids to send.
+        """
+        ...
+
+    def delete_keys(
+        self,
+        fingerprints: str | list[str],
+        secret: bool = ...,
+        passphrase: str | None = ...,
+        expect_passphrase: bool = ...,
+        exclamation_mode: bool = ...,
+    ) -> DeleteResult:
+        """
+        Delete the indicated keys.
+
+        Args:
+            fingerprints (str|list[str]): The keys to delete.
+
+            secret (bool): Whether to delete secret keys.
+
+            passphrase (str): The passphrase to use.
+
+            expect_passphrase (bool): Whether a passphrase is expected.
+
+            exclamation_mode (bool): If specified, a `'!'` is appended to each fingerprint. This deletes only a subkey
+                                     or an entire key, depending on what the fingerprint refers to.
+
+        .. note:: Passphrases
+
+           Since GnuPG 2.1, you can't delete secret keys without providing a passphrase. However, if you're expecting
+           the passphrase to go to `gpg` via pinentry, you should specify expect_passphrase=False. (It's only checked
+           for GnuPG >= 2.1).
+        """
+        ...
+
+    def export_keys(
+        self,
+        keyids: str | list[str],
+        secret: bool = ...,
+        armor: bool = ...,
+        minimal: bool = ...,
+        passphrase: str | None = ...,
+        expect_passphrase: bool = ...,
+        output: str | None = ...,
+    ) -> ExportResult:
+        """
+        Export the indicated keys. A 'keyid' is anything `gpg` accepts.
+
+        Args:
+            keyids (str|list[str]): A single keyid or a list of them.
+
+            secret (bool): Whether to export secret keys.
+
+            armor (bool): Whether to ASCII-armor the output.
+
+            minimal (bool): Whether to pass `--export-options export-minimal` to `gpg`.
+
+            passphrase (str): The passphrase to use.
+
+            expect_passphrase (bool): Whether a passphrase is expected.
+
+            output (str): If specified, the path to write the exported key(s) to.
+
+        .. note:: Passphrases
+
+           Since GnuPG 2.1, you can't export secret keys without providing a passphrase. However, if you're expecting
+           the passphrase to go to `gpg` via pinentry, you should specify expect_passphrase=False. (It's only checked
+           for GnuPG >= 2.1).
+        """
+        ...
+
+    def list_keys(
+        self, secret: bool = ..., keys: str | list[str] | None = ..., sigs: bool = ...
+    ) -> ListKeys:
+        """
+        List the keys currently in the keyring.
+
+        Args:
+            secret (bool): Whether to list secret keys.
+
+            keys (str|list[str]): A list of key ids to match.
+
+            sigs (bool): Whether to include signature information.
+
+        Returns:
+            list[dict]: A list of dictionaries with key information.
+        """
+        ...
+
+    def scan_keys(self, filename: str) -> ScanKeys:
+        """
+        List details of an ascii armored or binary key file without first importing it to the local keyring.
+
+        Args:
+            filename (str): The path to the file containing the key(s).
+
+        .. warning:: Warning:
+            Care is needed. The function works on modern GnuPG by running:
+
+                $ gpg --dry-run --import-options import-show --import filename
+
+            On older versions, it does the *much* riskier:
+
+                $ gpg --with-fingerprint --with-colons filename
+        """
+        ...
+
+    def scan_keys_mem(self, key_data: str | bytes) -> ScanKeys:
+        """
+        List details of an ascii armored or binary key without first importing it to the local keyring.
+
+        Args:
+            key_data (str|bytes): The key data to import.
+
+        .. warning:: Warning:
+            Care is needed. The function works on modern GnuPG by running:
+
+                $ gpg --dry-run --import-options import-show --import filename
+
+            On older versions, it does the *much* riskier:
+
+                $ gpg --with-fingerprint --with-colons filename
+        """
+        ...
+
+    def search_keys(
+        self, query: str, keyserver: str = ..., extra_args: list[str] | None = ...
+    ) -> SearchKeys:
+        """
+        search a keyserver by query (using the `--search-keys` option).
+
+        Args:
+            query(str): The query to use.
+
+            keyserver (str): The key server hostname.
+
+            extra_args (list[str]): Additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def auto_locate_key(
+        self, email: str, mechanisms: list[str] | None = ..., **kwargs: Any
+    ) -> AutoLocateKey:
+        """
+        Auto locate a public key by `email`.
+
+        Args:
+            email (str): The email address to search for.
+            mechanisms (list[str]): A list of mechanisms to use. Valid mechanisms can be found
+            here https://www.gnupg.org/documentation/manuals/gnupg/GPG-Configuration-Options.html
+            under "--auto-key-locate". Default: ['wkd', 'ntds', 'ldap', 'cert', 'dane', 'local']
+        """
+        ...
+
+    def gen_key(self, input: str) -> GenKey:
+        """
+        Generate a key; you might use `gen_key_input()` to create the input.
+
+        Args:
+            input (str): The input to the key creation operation.
+        """
+        ...
+
+    def gen_key_input(self, **kwargs: Any) -> str:
+        """
+        Generate `--gen-key` input  (see `gpg` documentation in DETAILS).
+
+        Args:
+            kwargs (dict): A list of keyword arguments.
+        Returns:
+            str: A string suitable for passing to the `gen_key()` method.
+        """
+        ...
+
+    def add_subkey(
+        self,
+        master_key: str,
+        master_passphrase: str | None = ...,
+        algorithm: str = ...,
+        usage: str = ...,
+        expire: str = ...,
+    ) -> AddSubkey:
+        """
+        Add subkeys to a master key,
+
+        Args:
+            master_key (str): The master key.
+
+            master_passphrase (str): The passphrase for the master key.
+
+            algorithm (str): The key algorithm to use.
+
+            usage (str): The desired uses for the subkey.
+
+            expire (str): The expiration date of the subkey.
+        """
+        ...
+
+    def encrypt_file(
+        self,
+        fileobj_or_path: Any,
+        recipients: str | list[str],
+        sign: str | None = ...,
+        always_trust: bool = ...,
+        passphrase: str | None = ...,
+        armor: bool = ...,
+        output: str | None = ...,
+        symmetric: bool = ...,
+        extra_args: list[str] | None = ...,
+    ) -> Crypt:
+        """
+        Encrypt data in a file or file-like object.
+
+        Args:
+            fileobj_or_path (str|file): A path to a file or a file-like object containing the data to be encrypted.
+
+            recipients (str|list): A key id of a recipient of the encrypted data, or a list of such key ids.
+
+            sign (str): If specified, the key id of a signer to sign the encrypted data.
+
+            always_trust (bool): Whether to always trust keys.
+
+            passphrase (str): The passphrase to use for a signature.
+
+            armor (bool): Whether to ASCII-armor the output.
+
+            output (str): A path to write the encrypted output to.
+
+            symmetric (bool): Whether to use symmetric encryption,
+
+            extra_args (list[str]): A list of additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def encrypt(
+        self, data: str | bytes, recipients: str | list[str], **kwargs: Any
+    ) -> Crypt:
+        """
+        Encrypt the message contained in the string *data* for *recipients*. This method delegates most of the work to
+        `encrypt_file()`.
+
+        Args:
+            data (str|bytes): The data to encrypt.
+
+            recipients (str|list[str]): A key id of a recipient of the encrypted data, or a list of such key ids.
+
+            kwargs (dict): Keyword arguments, which are passed to `encrypt_file()`:
+                * sign (str): If specified, the key id of a signer to sign the encrypted data.
+
+                * always_trust (bool): Whether to always trust keys.
+
+                * passphrase (str): The passphrase to use for a signature.
+
+                * armor (bool): Whether to ASCII-armor the output.
+
+                * output (str): A path to write the encrypted output to.
+
+                * symmetric (bool): Whether to use symmetric encryption,
+
+                * extra_args (list[str]): A list of additional arguments to pass to `gpg`.
+        """
+        ...
+
+    def decrypt(self, message: str | bytes, **kwargs: Any) -> Crypt:
+        """
+        Decrypt the data in *message*. This method delegates most of the work to
+        `decrypt_file()`.
+
+        Args:
+            message (str|bytes): The data to decrypt. A default key will be used for decryption.
+
+            kwargs (dict): Keyword arguments, which are passed to `decrypt_file()`:
+
+                * always_trust: Whether to always trust keys.
+
+                * passphrase (str): The passphrase to use.
+
+                * output (str): If specified, the path to write the decrypted data to.
+
+                * extra_args (list[str]): A list of extra arguments to pass to `gpg`.
+        """
+        ...
+
+    def decrypt_file(
+        self,
+        fileobj_or_path: Any,
+        always_trust: bool = ...,
+        passphrase: str | None = ...,
+        output: str | None = ...,
+        extra_args: list[str] | None = ...,
+    ) -> Crypt:
+        """
+        Decrypt data in a file or file-like object.
+
+        Args:
+            fileobj_or_path (str|file): A path to a file or a file-like object containing the data to be decrypted.
+
+            always_trust: Whether to always trust keys.
+
+            passphrase (str): The passphrase to use.
+
+            output (str): If specified, the path to write the decrypted data to.
+
+            extra_args (list[str]): A list of extra arguments to pass to `gpg`.
+        """
+        ...
+
+    def get_recipients(self, message: str | bytes, **kwargs: Any) -> list[str]:
+        """Get the list of recipients for an encrypted message. This method delegates most of the work to
+        `get_recipients_file()`.
+
+        Args:
+            message (str|bytes): The encrypted message.
+
+            kwargs (dict): Keyword arguments, which are passed to `get_recipients_file()`:
+
+                * extra_args (list[str]): A list of extra arguments to pass to `gpg`.
+        """
+        ...
+
+    def get_recipients_file(
+        self, fileobj_or_path: Any, extra_args: list[str] | None = ...
+    ) -> list[str]:
+        """
+        Get the list of recipients for an encrypted message in a file or file-like object.
+
+        Args:
+            fileobj_or_path (str|file): A path to a file or file-like object containing the encrypted data.
+
+            extra_args (list[str]): A list of extra arguments to pass to `gpg`.
+        """
+        ...
+
+    def trust_keys(self, fingerprints: str | list[str], trustlevel: str) -> TrustResult:
+        """
+        Set the trust level for one or more keys.
+
+        Args:
+            fingerprints (str|list[str]): A key id for which to set the trust level, or a list of such key ids.
+
+            trustlevel (str): The trust level. This is one of the following.
+
+                                  * ``'TRUST_EXPIRED'``
+                                  * ``'TRUST_UNDEFINED'``
+                                  * ``'TRUST_NEVER'``
+                                  * ``'TRUST_MARGINAL'``
+                                  * ``'TRUST_FULLY'``
+                                  * ``'TRUST_ULTIMATE'``
+        """
+        ...