diff --git a/src/conf/kleopageconfigdialog.cpp b/src/conf/kleopageconfigdialog.cpp
index 6a35dd8ba..586710ab7 100644
--- a/src/conf/kleopageconfigdialog.cpp
+++ b/src/conf/kleopageconfigdialog.cpp
@@ -1,250 +1,254 @@
 /*
     kleopageconfigdialog.cpp
 
     This file is part of Kleopatra
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-only
 
     It is derived from KCMultidialog which is:
 
     SPDX-FileCopyrightText: 2000 Matthias Elter <elter@kde.org>
     SPDX-FileCopyrightText: 2003 Daniel Molkentin <molkentin@kde.org>
     SPDX-FileCopyrightText: 2003, 2006 Matthias Kretz <kretz@kde.org>
     SPDX-FileCopyrightText: 2004 Frans Englich <frans.englich@telia.com>
     SPDX-FileCopyrightText: 2006 Tobias Koenig <tokoe@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include <config-kleopatra.h>
 
 #include "kleopageconfigdialog.h"
 
 #include <QDesktopServices>
 #include <QDialogButtonBox>
 #include <QProcess>
 #include <QPushButton>
 #include <QStandardPaths>
 #include <QUrl>
 
 #include <KCModule>
 #include <KStandardGuiItem>
 #include <KMessageBox>
 #include <KLocalizedString>
 
 #include "kleopatra_debug.h"
 
 KleoPageConfigDialog::KleoPageConfigDialog(QWidget *parent)
     : KPageDialog(parent)
 {
     setModal(false);
 
     QDialogButtonBox *buttonBox = new QDialogButtonBox(this);
     buttonBox->setStandardButtons(QDialogButtonBox::Help
                                   | QDialogButtonBox::RestoreDefaults
                                   | QDialogButtonBox::Cancel
                                   | QDialogButtonBox::Apply
                                   | QDialogButtonBox::Ok
                                   | QDialogButtonBox::Reset);
     KGuiItem::assign(buttonBox->button(QDialogButtonBox::Ok), KStandardGuiItem::ok());
     KGuiItem::assign(buttonBox->button(QDialogButtonBox::Cancel), KStandardGuiItem::cancel());
     KGuiItem::assign(buttonBox->button(QDialogButtonBox::RestoreDefaults),
                                        KStandardGuiItem::defaults());
     KGuiItem::assign(buttonBox->button(QDialogButtonBox::Apply), KStandardGuiItem::apply());
     KGuiItem::assign(buttonBox->button(QDialogButtonBox::Reset), KStandardGuiItem::reset());
     KGuiItem::assign(buttonBox->button(QDialogButtonBox::Help), KStandardGuiItem::help());
     buttonBox->button(QDialogButtonBox::Reset)->setEnabled(false);
     buttonBox->button(QDialogButtonBox::Apply)->setEnabled(false);
 
     connect(buttonBox->button(QDialogButtonBox::Apply), &QAbstractButton::clicked,
             this, &KleoPageConfigDialog::slotApplyClicked);
     connect(buttonBox->button(QDialogButtonBox::Ok), &QAbstractButton::clicked,
             this, &KleoPageConfigDialog::slotOkClicked);
     connect(buttonBox->button(QDialogButtonBox::RestoreDefaults), &QAbstractButton::clicked,
             this, &KleoPageConfigDialog::slotDefaultClicked);
     connect(buttonBox->button(QDialogButtonBox::Help), &QAbstractButton::clicked,
             this, &KleoPageConfigDialog::slotHelpClicked);
     connect(buttonBox->button(QDialogButtonBox::Reset), &QAbstractButton::clicked,
             this, &KleoPageConfigDialog::slotUser1Clicked);
 
     setButtonBox(buttonBox);
 
     connect(this, &KPageDialog::currentPageChanged,
             this, &KleoPageConfigDialog::slotCurrentPageChanged);
 }
 
 void KleoPageConfigDialog::slotCurrentPageChanged(KPageWidgetItem *current, KPageWidgetItem *previous)
 {
     if (!previous) {
         return;
     }
     blockSignals(true);
     setCurrentPage(previous);
 
     KCModule *previousModule = qobject_cast<KCModule*>(previous->widget());
     bool canceled = false;
     if (previousModule && mChangedModules.contains(previousModule)) {
         const int queryUser = KMessageBox::warningYesNoCancel(
                           this,
                           i18n("The settings of the current module have changed.\n"
                                "Do you want to apply the changes or discard them?"),
                           i18n("Apply Settings"),
                           KStandardGuiItem::apply(),
                           KStandardGuiItem::discard(),
                           KStandardGuiItem::cancel());
         if (queryUser == KMessageBox::Yes) {
             previousModule->save();
         } else if (queryUser == KMessageBox::No) {
             previousModule->load();
         }
         canceled = queryUser == KMessageBox::Cancel;
     }
     if (!canceled) {
         mChangedModules.removeAll(previousModule);
         setCurrentPage(current);
     }
     blockSignals(false);
 
     clientChanged();
 }
 
 void KleoPageConfigDialog::apply()
 {
     QPushButton *applyButton = buttonBox()->button(QDialogButtonBox::Apply);
     applyButton->setFocus();
     for (KCModule *module : mChangedModules) {
         module->save();
     }
     mChangedModules.clear();
     Q_EMIT configCommitted();
     clientChanged();
 }
 
 void KleoPageConfigDialog::slotDefaultClicked()
 {
     const KPageWidgetItem *item = currentPage();
     if (!item) {
         return;
     }
 
     KCModule *module = qobject_cast<KCModule*>(item->widget());
     if (!module) {
         return;
     }
     module->defaults();
     clientChanged();
 }
 
 void KleoPageConfigDialog::slotUser1Clicked()
 {
     const KPageWidgetItem *item = currentPage();
     if (!item) {
         return;
     }
 
     KCModule *module = qobject_cast<KCModule*>(item->widget());
     if (!module) {
         return;
     }
     module->load();
     mChangedModules.removeAll(module);
     clientChanged();
 }
 
 void KleoPageConfigDialog::slotApplyClicked()
 {
     apply();
 }
 
 void KleoPageConfigDialog::slotOkClicked()
 {
     apply();
     accept();
 }
 
 void KleoPageConfigDialog::slotHelpClicked()
 {
     const KPageWidgetItem *item = currentPage();
     if (!item) {
         return;
     }
 
-    const QString docPath = mHelpUrls.value(item->name());
+    const QString name = item->name();
+    auto it = std::find_if(mHelpUrls.cbegin(), mHelpUrls.cend(), [&name](const HelpUrlInfo &info) {
+        return info.name == name;
+    });
+    const QString docPath = it != mHelpUrls.cend() ? it->docPath : QString{};
     QUrl docUrl;
 
 #ifdef Q_OS_WIN
     docUrl = QUrl(QLatin1String("https://docs.kde.org/index.php?branch=stable5&language=")
                   + QLocale().name() + QLatin1String("&application=kleopatra"));
 #else
     docUrl = QUrl(QStringLiteral("help:/")).resolved(QUrl(docPath)); // same code as in KHelpClient::invokeHelp
 #endif
     if (docUrl.scheme() == QLatin1String("help") || docUrl.scheme() == QLatin1String("man") || docUrl.scheme() == QLatin1String("info")) {
       const QString exec =
           QStandardPaths::findExecutable(QStringLiteral("khelpcenter"));
       if (exec.isEmpty()) {
         qCWarning(KLEOPATRA_LOG) << "Could not find khelpcenter in PATH.";
       } else {
         QProcess::startDetached(QStringLiteral("khelpcenter"),
                                 QStringList() << docUrl.toString());
       }
     } else {
         QDesktopServices::openUrl(docUrl);
     }
 }
 
 void KleoPageConfigDialog::addModule(const QString &name, const QString &docPath, const QString &icon, KCModule *module)
 {
     mModules << module;
 
     KPageWidgetItem *item = addPage(module, name);
     item->setIcon(QIcon::fromTheme(icon));
 
     connect(module, SIGNAL(changed(bool)), this, SLOT(moduleChanged(bool)));
 
-    mHelpUrls.insert(name, docPath);
+    mHelpUrls.push_back({name, docPath});
 }
 
 void KleoPageConfigDialog::moduleChanged(bool state)
 {
     KCModule *module = qobject_cast<KCModule*>(sender());
     qCDebug(KLEOPATRA_LOG) << "Module changed: " << state << " mod " << module;
     if (mChangedModules.contains(module)) {
         if (!state) {
             mChangedModules.removeAll(module);
         } else {
             return;
         }
     }
     if (state) {
         mChangedModules << module;
     }
     clientChanged();
 }
 
 void KleoPageConfigDialog::clientChanged()
 {
     const KPageWidgetItem *item = currentPage();
     if (!item) {
         return;
     }
     KCModule *module = qobject_cast<KCModule*>(item->widget());
 
     if (!module) {
         return;
     }
     qCDebug(KLEOPATRA_LOG) << "Client changed: " << " mod " << module;
 
     bool change = mChangedModules.contains(module);
 
     QPushButton *resetButton = buttonBox()->button(QDialogButtonBox::Reset);
     if (resetButton) {
         resetButton->setEnabled(change);
     }
 
     QPushButton *applyButton = buttonBox()->button(QDialogButtonBox::Apply);
     if (applyButton) {
         applyButton->setEnabled(change);
     }
 }
diff --git a/src/conf/kleopageconfigdialog.h b/src/conf/kleopageconfigdialog.h
index adbec42d3..2af0db33e 100644
--- a/src/conf/kleopageconfigdialog.h
+++ b/src/conf/kleopageconfigdialog.h
@@ -1,50 +1,54 @@
 /*
     kleopageconfigdialog.h.h
 
     This file is part of Kleopatra
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-only
 */
 
 #pragma once
 
 #include <KPageDialog>
 #include <QList>
 
 class KPageWidgetItem;
 class KCModule;
 
 /**
  * KPageDialog based config dialog to be used when
  * KCMUtils are not available. */
 class KleoPageConfigDialog : public KPageDialog
 {
     Q_OBJECT
 public:
     explicit KleoPageConfigDialog(QWidget *parent = nullptr);
 
     void addModule(const QString &name, const QString &docPath, const QString &icon, KCModule *module);
 
 Q_SIGNALS:
     void configCommitted();
 
 protected Q_SLOTS:
     void slotDefaultClicked();
     void slotUser1Clicked();
     void slotApplyClicked();
     void slotOkClicked();
     void slotHelpClicked();
     void slotCurrentPageChanged(KPageWidgetItem *current, KPageWidgetItem *previous);
     void moduleChanged(bool value);
 
 private:
     void clientChanged();
     void apply();
 
     QList<KCModule *> mModules;
     QList<KCModule *> mChangedModules;
-    QMap<QString, QString> mHelpUrls;
+    struct HelpUrlInfo {
+        QString name;
+        QString docPath;
+    };
+    std::vector<HelpUrlInfo> mHelpUrls;
 };
 
diff --git a/src/dialogs/certificateselectiondialog.cpp b/src/dialogs/certificateselectiondialog.cpp
index 94ae2e7d5..424bc8fe3 100644
--- a/src/dialogs/certificateselectiondialog.cpp
+++ b/src/dialogs/certificateselectiondialog.cpp
@@ -1,484 +1,485 @@
 /* -*- mode: c++; c-basic-offset:4 -*-
     dialogs/certificateselectiondialog.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2008 Klarälvdalens Datakonsult AB
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-kleopatra.h>
 
 #include "certificateselectiondialog.h"
 
 #include "settings.h"
 
 #include "conf/groupsconfigdialog.h"
 
 #include <view/keytreeview.h>
 #include <view/searchbar.h>
 #include <view/tabwidget.h>
 
 #include "utils/tags.h"
 
 #include <Libkleo/KeyGroup>
 #include <Libkleo/KeyListModel>
 #include <Libkleo/KeyCache>
 
 #include <commands/reloadkeyscommand.h>
 #include <commands/lookupcertificatescommand.h>
 #include <commands/newcertificatecommand.h>
 #include <commands/importcertificatefromfilecommand.h>
 
 #include <gpgme++/key.h>
 
 #include <KLocalizedString>
 #include <KConfigDialog>
 #include <KConfigGroup>
 #include <KSharedConfig>
 
 #include <QLabel>
 #include <QPushButton>
 #include <QDialogButtonBox>
 #include <QItemSelectionModel>
 #include <QAbstractItemView>
 #include <QPointer>
 #include <QVBoxLayout>
 
 #include <algorithm>
 
 using namespace Kleo;
 using namespace Kleo::Dialogs;
 using namespace Kleo::Commands;
 using namespace GpgME;
 
 
 CertificateSelectionDialog::Option CertificateSelectionDialog::optionsFromProtocol(Protocol proto)
 {
     switch (proto) {
     case OpenPGP: return CertificateSelectionDialog::OpenPGPFormat;
     case CMS:     return CertificateSelectionDialog::CMSFormat;
     default:      return CertificateSelectionDialog::AnyFormat;
     }
 }
 
 namespace
 {
 auto protocolFromOptions(CertificateSelectionDialog::Options options)
 {
     switch (options & CertificateSelectionDialog::AnyFormat) {
     case CertificateSelectionDialog::OpenPGPFormat:
         return GpgME::OpenPGP;
     case CertificateSelectionDialog::CMSFormat:
         return GpgME::CMS;
     default:
         return GpgME::UnknownProtocol;
     }
 }
 }
 
 class CertificateSelectionDialog::Private
 {
     friend class ::Kleo::Dialogs::CertificateSelectionDialog;
     CertificateSelectionDialog *const q;
 public:
     explicit Private(CertificateSelectionDialog *qq);
 
 private:
     void reload()
     {
         Command *const cmd = new ReloadKeysCommand(nullptr);
         cmd->setParentWidget(q);
         cmd->start();
     }
     void create()
     {
         auto cmd = new NewCertificateCommand(nullptr);
         cmd->setParentWidget(q);
         cmd->setProtocol(protocolFromOptions(options));
         cmd->start();
     }
     void lookup()
     {
         const auto cmd = new LookupCertificatesCommand(nullptr);
         cmd->setParentWidget(q);
         cmd->setProtocol(protocolFromOptions(options));
         cmd->start();
     }
     void manageGroups()
     {
         KConfigDialog *dialog = KConfigDialog::exists(GroupsConfigDialog::dialogName());
         if (dialog) {
             // reparent the dialog to ensure it's shown on top of the modal CertificateSelectionDialog
             dialog->setParent(q, Qt::Dialog);
         } else {
             dialog = new GroupsConfigDialog(q);
         }
         dialog->show();
     }
     void slotKeysMayHaveChanged();
     void slotCurrentViewChanged(QAbstractItemView *newView);
     void slotSelectionChanged();
     void slotDoubleClicked(const QModelIndex &idx);
 
 private:
     bool acceptable(const std::vector<Key> &keys, const std::vector<KeyGroup> &groups)
     {
         return !keys.empty() || !groups.empty();
     }
     void updateLabelText()
     {
         ui.label.setText(!customLabelText.isEmpty() ? customLabelText :
                          (options & MultiSelection)
                          ? i18n("Please select one or more of the following certificates:")
                          : i18n("Please select one of the following certificates:"));
     }
 
 private:
-    QSet<QAbstractItemView *> connectedViews;
+    std::vector<QAbstractItemView *> connectedViews;
     QString customLabelText;
     Options options = AnyCertificate | AnyFormat;
 
     struct UI {
         QLabel label;
         SearchBar searchBar;
         TabWidget tabWidget;
         QDialogButtonBox buttonBox;
     } ui;
 
     void setUpUI(CertificateSelectionDialog *q)
     {
         KDAB_SET_OBJECT_NAME(ui.label);
         KDAB_SET_OBJECT_NAME(ui.searchBar);
         KDAB_SET_OBJECT_NAME(ui.tabWidget);
         KDAB_SET_OBJECT_NAME(ui.buttonBox);
 
         auto vlay = new QVBoxLayout(q);
         vlay->addWidget(&ui.label);
         vlay->addWidget(&ui.searchBar);
         vlay->addWidget(&ui.tabWidget, 1);
         vlay->addWidget(&ui.buttonBox);
 
         QPushButton *const okButton = ui.buttonBox.addButton(QDialogButtonBox::Ok);
         okButton->setEnabled(false);
         ui.buttonBox.addButton(QDialogButtonBox::Close);
         QPushButton *const reloadButton = ui.buttonBox.addButton(i18n("Reload"), QDialogButtonBox::ActionRole);
         reloadButton->setToolTip(i18nc("@info:tooltip", "Refresh certificate list"));
         QPushButton *const importButton = ui.buttonBox.addButton(i18n("Import..."), QDialogButtonBox::ActionRole);
         importButton->setToolTip(i18nc("@info:tooltip", "Import certificate from file"));
         importButton->setAccessibleName(i18n("Import certificate"));
         QPushButton *const lookupButton = ui.buttonBox.addButton(i18n("Lookup..."), QDialogButtonBox::ActionRole);
         lookupButton->setToolTip(i18nc("@info:tooltip", "Look up certificate on server"));
         lookupButton->setAccessibleName(i18n("Look up certificate"));
         QPushButton *const createButton = ui.buttonBox.addButton(i18n("New..."), QDialogButtonBox::ActionRole);
         createButton->setToolTip(i18nc("@info:tooltip", "Create a new certificate"));
         createButton->setAccessibleName(i18n("Create certificate"));
         QPushButton *const groupsButton = ui.buttonBox.addButton(i18n("Groups..."), QDialogButtonBox::ActionRole);
         groupsButton->setToolTip(i18nc("@info:tooltip", "Manage certificate groups"));
         groupsButton->setAccessibleName(i18n("Manage groups"));
         groupsButton->setVisible(Settings().groupsEnabled());
 
         connect(&ui.buttonBox, &QDialogButtonBox::accepted, q, &CertificateSelectionDialog::accept);
         connect(&ui.buttonBox, &QDialogButtonBox::rejected, q, &CertificateSelectionDialog::reject);
         connect(reloadButton, &QPushButton::clicked, q, [this] () { reload(); });
         connect(lookupButton, &QPushButton::clicked, q, [this] () { lookup(); });
         connect(createButton, &QPushButton::clicked, q, [this] () { create(); });
         connect(groupsButton, &QPushButton::clicked, q, [this] () { manageGroups(); });
         connect(KeyCache::instance().get(), &KeyCache::keysMayHaveChanged,
                 q, [this] () { slotKeysMayHaveChanged(); });
 
         connect(importButton, &QPushButton::clicked, q, [importButton, q] () {
             importButton->setEnabled(false);
             auto cmd = new Kleo::ImportCertificateFromFileCommand();
             connect(cmd, &Kleo::ImportCertificateFromFileCommand::finished,
                     q, [importButton]() {
                 importButton->setEnabled(true);
             });
             cmd->setParentWidget(q);
             cmd->start();
         });
     }
 };
 
 CertificateSelectionDialog::Private::Private(CertificateSelectionDialog *qq)
     : q(qq)
 {
     setUpUI(q);
     ui.tabWidget.setFlatModel(AbstractKeyListModel::createFlatKeyListModel(q));
     ui.tabWidget.setHierarchicalModel(AbstractKeyListModel::createHierarchicalKeyListModel(q));
     const auto tagKeys = Tags::tagKeys();
     ui.tabWidget.flatModel()->setRemarkKeys(tagKeys);
     ui.tabWidget.hierarchicalModel()->setRemarkKeys(tagKeys);
     ui.tabWidget.connectSearchBar(&ui.searchBar);
 
     connect(&ui.tabWidget, &TabWidget::currentViewChanged,
             q, [this] (QAbstractItemView *view) { slotCurrentViewChanged(view); });
 
     updateLabelText();
     q->setWindowTitle(i18nc("@title:window", "Certificate Selection"));
 }
 
 CertificateSelectionDialog::CertificateSelectionDialog(QWidget *parent)
     : QDialog(parent), d(new Private(this))
 {
     const KSharedConfig::Ptr config = KSharedConfig::openConfig(QStringLiteral("kleopatracertificateselectiondialogrc"));
     d->ui.tabWidget.loadViews(config.data());
     const KConfigGroup geometry(config, "Geometry");
     resize(geometry.readEntry("size", size()));
     d->slotKeysMayHaveChanged();
 }
 
 CertificateSelectionDialog::~CertificateSelectionDialog() {}
 
 void CertificateSelectionDialog::setCustomLabelText(const QString &txt)
 {
     if (txt == d->customLabelText) {
         return;
     }
     d->customLabelText = txt;
     d->updateLabelText();
 }
 
 QString CertificateSelectionDialog::customLabelText() const
 {
     return d->customLabelText;
 }
 
 void CertificateSelectionDialog::setOptions(Options options)
 {
     Q_ASSERT((options & CertificateSelectionDialog::AnyCertificate) != 0);
     Q_ASSERT((options & CertificateSelectionDialog::AnyFormat) != 0);
     if (d->options == options) {
         return;
     }
     d->options = options;
 
     d->ui.tabWidget.setMultiSelection(options & MultiSelection);
 
     d->slotKeysMayHaveChanged();
     d->updateLabelText();
 }
 
 CertificateSelectionDialog::Options CertificateSelectionDialog::options() const
 {
     return d->options;
 }
 
 void CertificateSelectionDialog::setStringFilter(const QString &filter)
 {
     d->ui.tabWidget.setStringFilter(filter);
 }
 
 void CertificateSelectionDialog::setKeyFilter(const std::shared_ptr<KeyFilter> &filter)
 {
     d->ui.tabWidget.setKeyFilter(filter);
 }
 
 namespace
 {
 
 void selectRows(const QAbstractItemView *view, const QModelIndexList &indexes)
 {
     if (!view) {
         return;
     }
     QItemSelectionModel *const sm = view->selectionModel();
     Q_ASSERT(sm);
 
     for (const QModelIndex &idx : std::as_const(indexes)) {
         if (idx.isValid()) {
             sm->select(idx, QItemSelectionModel::Select | QItemSelectionModel::Rows);
         }
     }
 }
 
 QModelIndexList getGroupIndexes(const KeyListModelInterface *model, const std::vector<KeyGroup> &groups)
 {
     QModelIndexList indexes;
     indexes.reserve(groups.size());
     std::transform(groups.begin(), groups.end(),
                    std::back_inserter(indexes),
                    [model] (const KeyGroup &group) {
                        return model->index(group);
                    });
     indexes.erase(std::remove_if(indexes.begin(), indexes.end(),
                                  [] (const QModelIndex &index) { return !index.isValid(); }),
                   indexes.end());
     return indexes;
 }
 
 }
 
 void CertificateSelectionDialog::selectCertificates(const std::vector<Key> &keys)
 {
     const auto *const model = d->ui.tabWidget.currentModel();
     Q_ASSERT(model);
     selectRows(d->ui.tabWidget.currentView(), model->indexes(keys));
 }
 
 void CertificateSelectionDialog::selectCertificate(const Key &key)
 {
     selectCertificates(std::vector<Key>(1, key));
 }
 
 void CertificateSelectionDialog::selectGroups(const std::vector<KeyGroup> &groups)
 {
     const auto *const model = d->ui.tabWidget.currentModel();
     Q_ASSERT(model);
     selectRows(d->ui.tabWidget.currentView(), getGroupIndexes(model, groups));
 }
 
 namespace
 {
 
 QModelIndexList getSelectedRows(const QAbstractItemView *view)
 {
     if (!view) {
         return {};
     }
     const QItemSelectionModel *const sm = view->selectionModel();
     Q_ASSERT(sm);
     return sm->selectedRows();
 }
 
 std::vector<KeyGroup> getGroups(const KeyListModelInterface *model, const QModelIndexList &indexes)
 {
     std::vector<KeyGroup> groups;
     groups.reserve(indexes.size());
     std::transform(indexes.begin(), indexes.end(),
                    std::back_inserter(groups),
                    [model](const QModelIndex &idx) {
                        return model->group(idx);
                    });
     groups.erase(std::remove_if(groups.begin(), groups.end(), std::mem_fn(&Kleo::KeyGroup::isNull)), groups.end());
     return groups;
 }
 
 }
 
 std::vector<Key> CertificateSelectionDialog::selectedCertificates() const
 {
     const KeyListModelInterface *const model = d->ui.tabWidget.currentModel();
     Q_ASSERT(model);
     return model->keys(getSelectedRows(d->ui.tabWidget.currentView()));
 }
 
 Key CertificateSelectionDialog::selectedCertificate() const
 {
     const std::vector<Key> keys = selectedCertificates();
     return keys.empty() ? Key() : keys.front();
 }
 
 std::vector<KeyGroup> CertificateSelectionDialog::selectedGroups() const
 {
     const KeyListModelInterface *const model = d->ui.tabWidget.currentModel();
     Q_ASSERT(model);
     return getGroups(model, getSelectedRows(d->ui.tabWidget.currentView()));
 }
 
 void CertificateSelectionDialog::hideEvent(QHideEvent *e)
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig(QStringLiteral("kleopatracertificateselectiondialogrc"));
     d->ui.tabWidget.saveViews(config.data());
     KConfigGroup geometry(config, "Geometry");
     geometry.writeEntry("size", size());
     QDialog::hideEvent(e);
 }
 
 void CertificateSelectionDialog::Private::slotKeysMayHaveChanged()
 {
     q->setEnabled(true);
     std::vector<Key> keys = (options & SecretKeys) ? KeyCache::instance()->secretKeys() : KeyCache::instance()->keys();
     q->filterAllowedKeys(keys, options);
     const std::vector<KeyGroup> groups = (options & IncludeGroups) ? KeyCache::instance()->groups() : std::vector<KeyGroup>();
 
     const std::vector<Key> selectedKeys = q->selectedCertificates();
     const std::vector<KeyGroup> selectedGroups = q->selectedGroups();
     if (AbstractKeyListModel *const model = ui.tabWidget.flatModel()) {
         model->setKeys(keys);
         model->setGroups(groups);
     }
     if (AbstractKeyListModel *const model = ui.tabWidget.hierarchicalModel()) {
         model->setKeys(keys);
         model->setGroups(groups);
     }
     q->selectCertificates(selectedKeys);
     q->selectGroups(selectedGroups);
 }
 
 void CertificateSelectionDialog::filterAllowedKeys(std::vector<Key> &keys, int options)
 {
     auto end = keys.end();
 
     switch (options & AnyFormat) {
     case OpenPGPFormat:
         end = std::remove_if(keys.begin(), end, [](const Key &key) { return key.protocol() != OpenPGP; });
         break;
     case CMSFormat:
         end = std::remove_if(keys.begin(), end, [](const Key &key) { return key.protocol() != CMS; });
         break;
     default:
     case AnyFormat:
         ;
     }
 
     switch (options & AnyCertificate) {
     case SignOnly:
         end = std::remove_if(keys.begin(), end, [](const Key &key) { return !key.canReallySign(); });
         break;
     case EncryptOnly:
         end = std::remove_if(keys.begin(), end, [](const Key &key) { return !key.canEncrypt(); });
         break;
     default:
     case AnyCertificate:
         ;
     }
 
     if (options & SecretKeys) {
         end = std::remove_if(keys.begin(), end, [](const Key &key) { return !key.hasSecret(); });
     }
 
     keys.erase(end, keys.end());
 }
 
 void CertificateSelectionDialog::Private::slotCurrentViewChanged(QAbstractItemView *newView)
 {
-    if (!connectedViews.contains(newView)) {
-        connectedViews.insert(newView);
+    auto it = std::find(connectedViews.cbegin(), connectedViews.cend(), newView);
+    if (it == connectedViews.cend()) {
+        connectedViews.push_back(newView);
         connect(newView, &QAbstractItemView::doubleClicked,
                 q, [this] (const QModelIndex &index) { slotDoubleClicked(index); });
         Q_ASSERT(newView->selectionModel());
         connect(newView->selectionModel(), &QItemSelectionModel::selectionChanged,
                 q, [this] (const QItemSelection &, const QItemSelection &) { slotSelectionChanged(); });
     }
     slotSelectionChanged();
 }
 
 void CertificateSelectionDialog::Private::slotSelectionChanged()
 {
     if (QPushButton *const pb = ui.buttonBox.button(QDialogButtonBox::Ok)) {
         pb->setEnabled(acceptable(q->selectedCertificates(), q->selectedGroups()));
     }
 }
 
 void CertificateSelectionDialog::Private::slotDoubleClicked(const QModelIndex &idx)
 {
     QAbstractItemView *const view = ui.tabWidget.currentView();
     Q_ASSERT(view);
     const auto *const model = ui.tabWidget.currentModel();
     Q_ASSERT(model);
     Q_UNUSED(model)
     QItemSelectionModel *const sm = view->selectionModel();
     Q_ASSERT(sm);
     sm->select(idx, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
     QMetaObject::invokeMethod(q, [this]() {q->accept();}, Qt::QueuedConnection);
 }
 
 void CertificateSelectionDialog::accept()
 {
     if (d->acceptable(selectedCertificates(), selectedGroups())) {
         QDialog::accept();
     }
 }
 
 #include "moc_certificateselectiondialog.cpp"
diff --git a/src/smartcard/openpgpcard.cpp b/src/smartcard/openpgpcard.cpp
index cf3c14c71..d317164de 100644
--- a/src/smartcard/openpgpcard.cpp
+++ b/src/smartcard/openpgpcard.cpp
@@ -1,105 +1,112 @@
 /*  smartcard/openpgpcard.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2017 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
     SPDX-FileCopyrightText: 2020 g10 Code GmbH
     SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 /* Code in this file is partly based on the GNU Privacy Assistant
  * (cm-openpgp.c) git rev. 0a78795146661234070681737b3e08228616441f
  *
  * Whis is:
  * SPDX-FileCopyrightText: 2008, 2009 g 10 Code GmbH
  *
  * And may be licensed under the GNU General Public License
  * as published by the Free Software Foundation; either version 2 of the
  * License, or (at your option) any later version.
  */
 
 #include "openpgpcard.h"
 
 #include <KLocalizedString>
 
 #include "kleopatra_debug.h"
 
 using namespace Kleo;
 using namespace Kleo::SmartCard;
 
 // static
 const std::string OpenPGPCard::AppName = "openpgp";
 
 OpenPGPCard::OpenPGPCard(const Card &card)
     : Card(card)
 {
     setAppName(AppName);
     setInitialKeyInfos(OpenPGPCard::supportedKeys());
 }
 
 // static
 std::string OpenPGPCard::pgpSigKeyRef()
 {
     return std::string("OPENPGP.1");
 }
 
 // static
 std::string OpenPGPCard::pgpEncKeyRef()
 {
     return std::string("OPENPGP.2");
 }
 
 // static
 std::string OpenPGPCard::pgpAuthKeyRef()
 {
     return std::string("OPENPGP.3");
 }
 
 // static
 std::string OpenPGPCard::pinKeyRef()
 {
     return std::string("OPENPGP.1");
 }
 
 // static
 std::string OpenPGPCard::adminPinKeyRef()
 {
     return std::string("OPENPGP.3");
 }
 
 // static
 std::string OpenPGPCard::resetCodeKeyRef()
 {
     return std::string("OPENPGP.2");
 }
 
 // static
 const std::vector<KeyPairInfo> & OpenPGPCard::supportedKeys()
 {
     static const std::vector<KeyPairInfo> keyInfos = {
         {OpenPGPCard::pgpSigKeyRef(), "", "sc", "", ""},
         {OpenPGPCard::pgpEncKeyRef(), "", "e", "", ""},
         {OpenPGPCard::pgpAuthKeyRef(), "", "a", "", ""}
     };
 
     return keyInfos;
 }
 
 // static
 QString OpenPGPCard::keyDisplayName(const std::string &keyRef)
 {
-    static const QMap<std::string, QString> displayNames = {
+    struct KeyInfo {
+        std::string name;
+        QString displayName;
+    };
+    static const std::array<KeyInfo, 3> displayNames = {{
         { OpenPGPCard::pgpSigKeyRef(), i18n("Signature") },
         { OpenPGPCard::pgpEncKeyRef(), i18n("Encryption") },
         { OpenPGPCard::pgpAuthKeyRef(), i18n("Authentication") }
-    };
+    }};
 
-    return displayNames.value(keyRef);
+    auto it = std::find_if(displayNames.cbegin(), displayNames.cend(), [&keyRef](const KeyInfo &info) {
+        return info.name == keyRef;
+    });
+    return it != displayNames.cend() ? it->displayName : QString{};
 }
 
 std::string OpenPGPCard::pubkeyUrl() const
 {
     return cardInfo("PUBKEY-URL");
 }
diff --git a/src/smartcard/pivcard.cpp b/src/smartcard/pivcard.cpp
index c285203b5..0bf816454 100644
--- a/src/smartcard/pivcard.cpp
+++ b/src/smartcard/pivcard.cpp
@@ -1,135 +1,142 @@
 /*  smartcard/pivcard.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2020 g10 Code GmbH
     SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "pivcard.h"
 
 #include "keypairinfo.h"
 
 #include <KLocalizedString>
 
 #include "kleopatra_debug.h"
 
 using namespace Kleo;
 using namespace Kleo::SmartCard;
 
 // static
 const std::string PIVCard::AppName = "piv";
 
 PIVCard::PIVCard(const Card &card)
     : Card(card)
 {
     setAppName(AppName);
     setInitialKeyInfos(PIVCard::supportedKeys());
 }
 
 // static
 std::string PIVCard::pivAuthenticationKeyRef()
 {
     return std::string("PIV.9A");
 }
 
 // static
 std::string PIVCard::cardAuthenticationKeyRef()
 {
     return std::string("PIV.9E");
 }
 
 // static
 std::string PIVCard::digitalSignatureKeyRef()
 {
     return std::string("PIV.9C");
 }
 
 // static
 std::string PIVCard::keyManagementKeyRef()
 {
     return std::string("PIV.9D");
 }
 
 // static
 std::string PIVCard::pinKeyRef()
 {
     return std::string("PIV.80");
 }
 
 // static
 std::string PIVCard::pukKeyRef()
 {
     return std::string("PIV.81");
 }
 
 // static
 const std::vector<KeyPairInfo> & PIVCard::supportedKeys()
 {
     static const std::vector<KeyPairInfo> keyInfos = {
         {PIVCard::pivAuthenticationKeyRef(), "", "a", "", ""},
         {PIVCard::cardAuthenticationKeyRef(), "", "a", "", ""},
         {PIVCard::digitalSignatureKeyRef(), "", "sc", "", ""},
         {PIVCard::keyManagementKeyRef(), "", "e", "", ""}
     };
 
     return keyInfos;
 }
 
 // static
 QString PIVCard::keyDisplayName(const std::string &keyRef)
 {
-    static const QMap<std::string, QString> displayNames = {
+    struct KeyInfo {
+        std::string name;
+        QString displayName;
+    };
+    static const std::array<KeyInfo, 4> displayNames = {{
         { PIVCard::pivAuthenticationKeyRef(), i18n("PIV Authentication Key") },
         { PIVCard::cardAuthenticationKeyRef(), i18n("Card Authentication Key") },
         { PIVCard::digitalSignatureKeyRef(), i18n("Digital Signature Key") },
         { PIVCard::keyManagementKeyRef(), i18n("Key Management Key") },
-    };
+    }};
 
-    return displayNames.value(keyRef);
+    auto it = std::find_if(displayNames.cbegin(), displayNames.cend(), [&keyRef](const KeyInfo &info) {
+        return info.name == keyRef;
+    });
+    return it != displayNames.cend() ? it->displayName : QString{};
 }
 
 // static
 std::vector< std::pair<std::string, QString> > PIVCard::supportedAlgorithms(const std::string &keyRef)
 {
     if (keyRef == PIVCard::keyManagementKeyRef()) {
         return {
             { "rsa2048", i18n("RSA key transport (2048 bits)") },
             { "nistp256", i18n("ECDH (Curve P-256)") },
             { "nistp384", i18n("ECDH (Curve P-384)") }
         };
     } else if (keyRef == PIVCard::digitalSignatureKeyRef()) {
         return {
             { "rsa2048", i18n("RSA (2048 bits)") },
             { "nistp256", i18n("ECDSA (Curve P-256)") },
             { "nistp384", i18n("ECDSA (Curve P-384)") }
         };
     }
 
     // NIST SP 800-78-4 does not allow Curve P-384 for PIV Authentication key or Card Authentication key
     return {
         { "rsa2048", i18n("RSA (2048 bits)") },
         { "nistp256", i18n("ECDSA (Curve P-256)") },
     };
 }
 
 std::string PIVCard::keyAlgorithm(const std::string &keyRef) const
 {
     return cardInfo("KLEO-KEYALGO-" + keyRef);
 }
 
 void PIVCard::setKeyAlgorithm(const std::string &keyRef, const std::string &algorithm)
 {
     addCardInfo("KLEO-KEYALGO-" + keyRef, algorithm);
 }
 
 std::string PIVCard::certificateData(const std::string &keyRef) const
 {
     return cardInfo("KLEO-CERTIFICATE-" + keyRef);
 }
 
 void PIVCard::setCertificateData(const std::string &keyRef, const std::string &data)
 {
     addCardInfo("KLEO-CERTIFICATE-" + keyRef, data);
 }