From 61dcd44740b6b3bcc08ed50e19cd95ce52485e5e Mon Sep 17 00:00:00 2001
From: Huge_Black <60165378+hugeBlack@users.noreply.github.com>
Date: Thu, 12 Jun 2025 12:47:33 +0800
Subject: [PATCH] Add import/export certificate feature (#1008)

---
 AltStore/Settings/Settings.storyboard         |  98 ++++++++---
 .../Settings/SettingsViewController.swift     | 158 +++++++++++++++++-
 .../Utils/importexport/ImportExport.swift     |   2 +-
 3 files changed, 233 insertions(+), 25 deletions(-)

diff --git a/AltStore/Settings/Settings.storyboard b/AltStore/Settings/Settings.storyboard
index 7f40aa1e..99df4ff3 100644
--- a/AltStore/Settings/Settings.storyboard
+++ b/AltStore/Settings/Settings.storyboard
@@ -22,7 +22,7 @@
                         <color key="tintColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                         <color key="separatorColor" white="1" alpha="0.25" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                         <stackView key="tableFooterView" opaque="NO" contentMode="scaleToFill" axis="vertical" distribution="equalCentering" alignment="center" spacing="15" id="48g-cT-stR">
-                            <rect key="frame" x="0.0" y="2011.0000038146973" width="402" height="125"/>
+                            <rect key="frame" x="0.0" y="2040.3333358764648" width="402" height="125"/>
                             <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                             <subviews>
                                 <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="900" text="Follow SideStore for updates" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="XFa-MY-7cV">
@@ -810,7 +810,7 @@
                                         </connections>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="VrV-qI-zXF" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1238.6666698455811" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1301.0000038146973" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="VrV-qI-zXF" id="w1r-uY-4pD">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -844,19 +844,19 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="VNn-u4-cN8" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1289.6666698455811" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1352.0000038146973" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="VNn-u4-cN8" id="4bh-qe-l2N">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                             <subviews>
-                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Reset Pairing File" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ysS-9s-dXm">
+                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" text="Reset Pairing File" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="ysS-9s-dXm">
                                                     <rect key="frame" x="30" y="15.333333333333334" width="140" height="20.333333333333329"/>
                                                     <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                                     <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                     <nil key="highlightedColor"/>
                                                 </label>
-                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="r09-mH-pOD">
+                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" translatesAutoresizingMaskIntoConstraints="NO" id="r09-mH-pOD">
                                                     <rect key="frame" x="356.33333333333331" y="14.333333333333334" width="15.666666666666686" height="22.333333333333329"/>
                                                     <imageReference key="image" image="chevron.right" catalog="system" symbolScale="large"/>
                                                 </imageView>
@@ -878,19 +878,19 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="e7s-hL-kv9" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1340.6666698455811" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1403.0000038146973" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="e7s-hL-kv9" id="yjL-Mu-HTk">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                             <subviews>
-                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Anisette Servers" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="eds-Dj-36y">
+                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" text="Anisette Servers" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="eds-Dj-36y">
                                                     <rect key="frame" x="30" y="15.333333333333334" width="135.66666666666666" height="20.333333333333329"/>
                                                     <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                                     <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                     <nil key="highlightedColor"/>
                                                 </label>
-                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="0dh-yd-7i9">
+                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" translatesAutoresizingMaskIntoConstraints="NO" id="0dh-yd-7i9">
                                                     <rect key="frame" x="356.33333333333331" y="14.333333333333334" width="15.666666666666686" height="22.333333333333329"/>
                                                     <imageReference key="image" image="chevron.right" catalog="system" symbolScale="large"/>
                                                 </imageView>
@@ -912,7 +912,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="XW5-Zc-nXH" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1391.6666698455811" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1454.0000038146973" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="XW5-Zc-nXH" id="AtM-bL-8pS">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -947,7 +947,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="qbY-8c-LYT" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1442.6666698455811" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1505.0000038146973" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="qbY-8c-LYT" id="NxK-qB-w7Q">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -985,10 +985,70 @@
                                     </tableViewCell>
                                 </cells>
                             </tableViewSection>
+                            <tableViewSection id="ZhW-yK-wdJ">
+                                <cells>
+                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="Y6h-Bo-yec" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
+                                        <rect key="frame" x="0.0" y="1592.0000038146973" width="402" height="51"/>
+                                        <autoresizingMask key="autoresizingMask"/>
+                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="Y6h-Bo-yec" id="4Jf-I6-v7z">
+                                            <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
+                                            <autoresizingMask key="autoresizingMask"/>
+                                            <subviews>
+                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Import Signing Certificate..." textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="rv6-S1-2gw">
+                                                    <rect key="frame" x="30.000000000000014" y="15.333333333333334" width="227.33333333333337" height="20.333333333333329"/>
+                                                    <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
+                                                    <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                    <nil key="highlightedColor"/>
+                                                </label>
+                                            </subviews>
+                                            <constraints>
+                                                <constraint firstItem="rv6-S1-2gw" firstAttribute="leading" secondItem="4Jf-I6-v7z" secondAttribute="leadingMargin" id="7zH-bg-kLS"/>
+                                                <constraint firstItem="rv6-S1-2gw" firstAttribute="centerY" secondItem="4Jf-I6-v7z" secondAttribute="centerY" id="Yls-DF-HHr"/>
+                                            </constraints>
+                                        </tableViewCellContentView>
+                                        <color key="backgroundColor" white="1" alpha="0.14999999999999999" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <edgeInsets key="layoutMargins" top="8" left="30" bottom="8" right="30"/>
+                                        <userDefinedRuntimeAttributes>
+                                            <userDefinedRuntimeAttribute type="number" keyPath="style">
+                                                <integer key="value" value="1"/>
+                                            </userDefinedRuntimeAttribute>
+                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSelectable" value="YES"/>
+                                        </userDefinedRuntimeAttributes>
+                                    </tableViewCell>
+                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="dLk-d6-X4T" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
+                                        <rect key="frame" x="0.0" y="1643.0000038146973" width="402" height="51"/>
+                                        <autoresizingMask key="autoresizingMask"/>
+                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="dLk-d6-X4T" id="Okl-3m-rde">
+                                            <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
+                                            <autoresizingMask key="autoresizingMask"/>
+                                            <subviews>
+                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Export Signing Certificate..." textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="WPe-mj-W7t">
+                                                    <rect key="frame" x="29.999999999999986" y="15.333333333333334" width="226.66666666666663" height="20.333333333333329"/>
+                                                    <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
+                                                    <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                                    <nil key="highlightedColor"/>
+                                                </label>
+                                            </subviews>
+                                            <constraints>
+                                                <constraint firstItem="WPe-mj-W7t" firstAttribute="leading" secondItem="Okl-3m-rde" secondAttribute="leadingMargin" id="9g7-9Z-ZZQ"/>
+                                                <constraint firstItem="WPe-mj-W7t" firstAttribute="centerY" secondItem="Okl-3m-rde" secondAttribute="centerY" id="RiS-WT-srl"/>
+                                            </constraints>
+                                        </tableViewCellContentView>
+                                        <color key="backgroundColor" white="1" alpha="0.14999999999999999" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                        <edgeInsets key="layoutMargins" top="8" left="30" bottom="8" right="30"/>
+                                        <userDefinedRuntimeAttributes>
+                                            <userDefinedRuntimeAttribute type="number" keyPath="style">
+                                                <integer key="value" value="3"/>
+                                            </userDefinedRuntimeAttribute>
+                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSelectable" value="YES"/>
+                                        </userDefinedRuntimeAttributes>
+                                    </tableViewCell>
+                                </cells>
+                            </tableViewSection>
                             <tableViewSection headerTitle="" id="lLQ-K0-XSb">
                                 <cells>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="daQ-mk-yqC" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1534.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1734.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="daQ-mk-yqC" id="ZkW-ZR-twy">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1023,7 +1083,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="hRP-jU-2hd" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1585.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1785.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="hRP-jU-2hd" id="JhE-O4-pRg">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1058,7 +1118,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="JoN-Aj-XtZ" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1636.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1836.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="JoN-Aj-XtZ" id="v8Q-VQ-Q1h">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1093,7 +1153,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="QOO-bO-4M5" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1687.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1887.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="QOO-bO-4M5" id="VTT-z5-C89">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1121,7 +1181,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="ToB-H7-2lR" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1738.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1938.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="ToB-H7-2lR" id="Acf-xV-Isn">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1149,7 +1209,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="xtI-eU-LFb" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1789.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="1989.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="xtI-eU-LFb" id="bc9-41-6mE">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1183,7 +1243,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="pvu-IV-Poa" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1840.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="2040.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="pvu-IV-Poa" id="zck-an-8cK">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1218,7 +1278,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="9By-QW-Jw9" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1891.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="2091.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="9By-QW-Jw9" id="Dzq-gE-zyT">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
@@ -1253,7 +1313,7 @@
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                     <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="LzP-Qb-bmC" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1942.0000038146973" width="402" height="51"/>
+                                        <rect key="frame" x="0.0" y="2142.3333377838135" width="402" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
                                         <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="LzP-Qb-bmC" id="3rE-h0-8kb">
                                             <rect key="frame" x="0.0" y="0.0" width="402" height="51"/>
diff --git a/AltStore/Settings/SettingsViewController.swift b/AltStore/Settings/SettingsViewController.swift
index 31dbadba..dc7858c7 100644
--- a/AltStore/Settings/SettingsViewController.swift
+++ b/AltStore/Settings/SettingsViewController.swift
@@ -16,6 +16,8 @@ import IntentsUI
 import SemanticVersion
 
 import AltStoreCore
+import CAltSign
+import UniformTypeIdentifiers
 
 extension SettingsViewController
 {
@@ -30,6 +32,7 @@ extension SettingsViewController
         case techyThings
         case credits
         case advancedSettings
+        case signing
         // diagnostics section, will be enabled on release builds only on swipe down with 3 fingers 3 times
         case diagnostics
         // case macDirtyCow
@@ -79,6 +82,11 @@ extension SettingsViewController
         case betaTrack
 //        case hiddenSettings
     }
+    
+    fileprivate enum SigningSettingsRow: Int, CaseIterable {
+        case importCert
+        case exportCert
+    }
 
     fileprivate enum DiagnosticsRow: Int, CaseIterable
     {
@@ -434,7 +442,19 @@ private extension SettingsViewController
             
         case .advancedSettings:
             settingsHeaderFooterView.primaryLabel.text = NSLocalizedString("ADVANCED SETTINGS", comment: "")
+            
+        case .signing:
+            // FIXME: Why "Enable Background Refresh ..." appear here if secondaryLabel is not specified???
+            if isHeader
+            {
+                settingsHeaderFooterView.primaryLabel.text = NSLocalizedString("SIGNING", comment: "")
+            }
+            else
+            {
+                settingsHeaderFooterView.secondaryLabel.text = NSLocalizedString("", comment: "")
+            }
 
+            
         case .diagnostics:
             settingsHeaderFooterView.primaryLabel.text = NSLocalizedString("DIAGNOSTICS", comment: "")
             
@@ -875,7 +895,7 @@ extension SettingsViewController
         case _ where isSectionHidden(section): return nil
         case .signIn where self.activeTeam != nil: return nil
         case .account where self.activeTeam == nil: return nil
-        case .signIn, .account, .patreon, .display, .appRefresh, .techyThings, .credits, .advancedSettings, .diagnostics /* ,.macDirtyCow */:
+        case .signIn, .account, .patreon, .display, .appRefresh, .techyThings, .credits, .advancedSettings, .signing ,.diagnostics /* ,.macDirtyCow */:
             let headerView = tableView.dequeueReusableHeaderFooterView(withIdentifier: "HeaderFooterView") as! SettingsHeaderFooterView
             self.prepare(headerView, for: section, isHeader: true)
             return headerView
@@ -892,7 +912,7 @@ extension SettingsViewController
         case _ where isSectionHidden(section): return nil
         case .signIn where self.activeTeam != nil: return nil
         // case .signIn, .patreon, .display, .appRefresh, .techyThings, .macDirtyCow:
-        case .signIn, .patreon, .display, .appRefresh, .techyThings:
+        case .signIn, .patreon, .display, .appRefresh, .techyThings, .signing:
             let footerView = tableView.dequeueReusableHeaderFooterView(withIdentifier: "HeaderFooterView") as! SettingsHeaderFooterView
             self.prepare(footerView, for: section, isHeader: false)
             return footerView
@@ -910,7 +930,7 @@ extension SettingsViewController
         case .signIn where self.activeTeam != nil: return 1.0
         case .account where self.activeTeam == nil: return 1.0
         // case .signIn, .account, .patreon, .display, .appRefresh, .techyThings, .credits, .macDirtyCow, .advanced:
-        case .signIn, .account, .patreon, .display, .appRefresh, .techyThings, .credits, .advancedSettings, .diagnostics:
+        case .signIn, .account, .patreon, .display, .appRefresh, .techyThings, .credits, .advancedSettings, .signing, .diagnostics:
             let height = self.preferredHeight(for: self.prototypeHeaderFooterView, in: section, isHeader: true)
             return height
             
@@ -927,7 +947,7 @@ extension SettingsViewController
         case .signIn where self.activeTeam != nil: return 1.0
         case .account where self.activeTeam == nil: return 1.0            
         // case .signIn, .patreon, .display, .appRefresh, .techyThings, .macDirtyCow:
-        case .signIn, .patreon, .display, .appRefresh, .techyThings, .diagnostics:
+        case .signIn, .patreon, .display, .appRefresh, .techyThings, .signing, .diagnostics:
             let height = self.preferredHeight(for: self.prototypeHeaderFooterView, in: section, isHeader: false)
             return height
             
@@ -1202,7 +1222,135 @@ extension SettingsViewController
             case .refreshAttempts, .betaUpdates, .betaTrack: break
 
             }
-        
+        case .signing:
+            let row = SigningSettingsRow.allCases[indexPath.row]
+            switch row {
+            case .importCert:
+                Task {
+                    let certUrl = await withUnsafeContinuation { c in
+                        let importVc = UIDocumentPickerViewController(forOpeningContentTypes: [UTType(filenameExtension: "p12")!], asCopy: false)
+                        ImportExport.documentPickerHandler = DocumentPickerHandler { url in
+                            c.resume(returning: url)
+                        }
+                        importVc.delegate = ImportExport.documentPickerHandler
+
+                        self.present(importVc, animated: true)
+                        
+                    }
+                    guard let certUrl else {
+                        return
+                    }
+                    
+                    let password = await withUnsafeContinuation { (c: UnsafeContinuation<String?,Never>) in
+                        let alertController = UIAlertController(title: NSLocalizedString("Please enter the password for the certificate.", comment: ""), message: nil, preferredStyle: .alert)
+                        
+                        alertController.addTextField { (textField) in
+                            textField.autocorrectionType = .no
+                            textField.autocapitalizationType = .none
+                        }
+                        
+                        let submitAction = UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .default) { (action) in
+                            let textField = alertController.textFields?.first
+                            
+                            let code = textField?.text ?? ""
+                            c.resume(returning: code)
+                        }
+                        alertController.addAction(submitAction)
+                        alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel) { (action) in
+                            c.resume(returning: nil)
+                        })
+                        
+                        self.present(alertController, animated: true)
+                    }
+                    
+                    guard let password else {
+                        return
+                    }
+                    let _ = certUrl.startAccessingSecurityScopedResource()
+                    defer {
+                        certUrl.stopAccessingSecurityScopedResource()
+                    }
+                    let certData : Data
+                    do {
+                        certData = try Data(contentsOf: certUrl)
+                    } catch {
+                        let toastView = ToastView(text: NSLocalizedString("Failed to import certificate!", comment: ""), detailText: error.localizedDescription)
+                        toastView.show(in: self)
+                        return
+                    }
+                    
+                    guard let altCert = ALTCertificate(p12Data: certData, password: password) else {
+                        let toastView = ToastView(text: NSLocalizedString("Failed to import certificate!", comment: ""), detailText: "Failed to create ALTCertificate. Check if the password is correct.")
+                        toastView.show(in: self)
+                        return
+                    }
+                    
+                    Keychain.shared.signingCertificate = altCert.encryptedP12Data(withPassword: "")!
+                    let toastView = ToastView(text: NSLocalizedString("Certificate imported successfully!", comment: ""), detailText: nil)
+                    toastView.show(in: self)
+                }
+
+                break
+            case .exportCert:
+                Task {
+                    guard let certData = Keychain.shared.signingCertificate else {
+                        let toastView = ToastView(text: NSLocalizedString("Failed to export certificate!", comment: ""), detailText: "Certificate not found.")
+                        toastView.show(in: self)
+                        return
+                    }
+                    
+                    let password = await withUnsafeContinuation { (c: UnsafeContinuation<String?,Never>) in
+                        let alertController = UIAlertController(title: NSLocalizedString("Please enter the password for the certificate.", comment: ""), message: nil, preferredStyle: .alert)
+                        
+                        alertController.addTextField { (textField) in
+                            textField.autocorrectionType = .no
+                            textField.autocapitalizationType = .none
+                        }
+                        
+                        let submitAction = UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .default) { (action) in
+                            let textField = alertController.textFields?.first
+                            
+                            let code = textField?.text ?? ""
+                            c.resume(returning: code)
+                        }
+                        alertController.addAction(submitAction)
+                        alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .cancel) { (action) in
+                            c.resume(returning: nil)
+                        })
+                        
+                        self.present(alertController, animated: true)
+                    }
+                    
+                    guard let password else {
+                        return
+                    }
+                    
+                    guard let altCert = ALTCertificate(p12Data: certData, password: nil) else {
+                        let toastView = ToastView(text: NSLocalizedString("Failed to export certificate!", comment: ""), detailText: "Failed to create ALTCertificate. Check if the password is correct.")
+                        toastView.show(in: self)
+                        return
+                    }
+                    
+                    guard let newCertData = altCert.encryptedP12Data(withPassword: password) else {
+                        let toastView = ToastView(text: NSLocalizedString("Failed to export certificate!", comment: ""), detailText: "Failed to encrypt  ALTCertificate.")
+                        toastView.show(in: self)
+                        return
+                    }
+                    
+                    let newCertTmpPath = FileManager.default.temporaryDirectory.appendingPathComponent("SideStoreSigningCertificate.p12")
+                    do {
+                        try newCertData.write(to: newCertTmpPath)
+                    } catch {
+                        let toastView = ToastView(text: NSLocalizedString("Failed to export certificate!", comment: ""), detailText: error.localizedDescription)
+                        toastView.show(in: self)
+                        return
+                    }
+                    let exportVC = UIDocumentPickerViewController(forExporting: [newCertTmpPath], asCopy: false)
+                    self.present(exportVC, animated: true)
+                }
+                break
+            }
+            
         case .diagnostics:
             let row = DiagnosticsRow.allCases[indexPath.row]
             switch row {
diff --git a/SideStore/Utils/importexport/ImportExport.swift b/SideStore/Utils/importexport/ImportExport.swift
index 20da033e..20172b75 100644
--- a/SideStore/Utils/importexport/ImportExport.swift
+++ b/SideStore/Utils/importexport/ImportExport.swift
@@ -12,7 +12,7 @@ import AltStoreCore
 
 class ImportExport {
     
-    private static var documentPickerHandler: DocumentPickerHandler?
+    public static var documentPickerHandler: DocumentPickerHandler?
     
     public static func getPreviousBackupURL(_ backupURL: URL) -> URL {
         let backupParentDirectory = backupURL.deletingLastPathComponent()