diff --git a/CMakeLists.txt b/CMakeLists.txt
index be5464d24..1a3093165 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,199 +1,202 @@
 # SPDX-License-Identifier: CC0-1.0
 # SPDX-FileCopyrightText: none
 cmake_minimum_required(VERSION 3.16 FATAL_ERROR)
 set(PIM_VERSION "5.24.42")
 
 project(libkleo VERSION ${PIM_VERSION})
 
 set(KF_MIN_VERSION "5.105.0")
 
 if (WIN32)
   set(KF5_WANT_VERSION "5.104.0")
 else ()
   set(KF5_WANT_VERSION ${KF_MIN_VERSION})
 endif ()
 
 find_package(ECM ${KF5_WANT_VERSION} CONFIG REQUIRED)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
 
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 
 include(ECMGenerateExportHeader)
 include(ECMSetupVersion)
 include(ECMGenerateHeaders)
 include(ECMGeneratePriFile)
 
 include(FeatureSummary)
 include(ECMQtDeclareLoggingCategory)
 include(ECMDeprecationSettings)
 include(ECMAddQch)
 include(KDEClangFormat)
 include(KDEGitCommitHooks)
 option(BUILD_WITH_COMPAT_LIBS "Generate compat cmake file (Set at false will allow to co-install lib)" ON)
 
 option(BUILD_QCH "Build API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)" OFF)
 add_feature_info(QCH ${BUILD_QCH} "API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)")
 
 set(LIBKLEO_LIB_VERSION ${PIM_VERSION})
 set(QT_REQUIRED_VERSION "5.15.2")
 if (QT_MAJOR_VERSION STREQUAL "6")
     set(QT_REQUIRED_VERSION "6.4.0")
     set(KF_MIN_VERSION "5.240.0")
     set(KF_MAJOR_VERSION "6")
 else()
     set(KF_MAJOR_VERSION "5")
 endif()
 
 set(KDEPIMTEXTEDIT_VERSION "5.24.40")
 set(GPGME_REQUIRED_VERSION "1.16.0")
 
 find_package(Qt${QT_MAJOR_VERSION} ${QT_REQUIRED_VERSION} CONFIG REQUIRED Widgets)
 if (QT_MAJOR_VERSION STREQUAL "6")
     find_package(Qt6Core5Compat)
 endif()
 find_package(KF${KF_MAJOR_VERSION}I18n ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KF${KF_MAJOR_VERSION}Config ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KF${KF_MAJOR_VERSION}WidgetsAddons ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KF${KF_MAJOR_VERSION}ConfigWidgets ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KF${KF_MAJOR_VERSION}Completion ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KF${KF_MAJOR_VERSION}CoreAddons ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KF${KF_MAJOR_VERSION}Codecs ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KF${KF_MAJOR_VERSION}ItemModels ${KF5_WANT_VERSION} CONFIG REQUIRED)
 find_package(KPim${KF_MAJOR_VERSION}TextEdit ${KDEPIMTEXTEDIT_VERSION} CONFIG)
 
 find_package(Gpgmepp ${GPGME_REQUIRED_VERSION} CONFIG REQUIRED)
 set_package_properties(Gpgmepp PROPERTIES DESCRIPTION "GpgME++ Library" URL "https://www.gnupg.org" TYPE REQUIRED PURPOSE "GpgME++ is required for OpenPGP support")
 message(STATUS "GpgME++ Version ${Gpgmepp_VERSION}")
 if (Gpgmepp_VERSION VERSION_GREATER_EQUAL "1.19.1")
     set(GPGMEPP_KEY_CANSIGN_IS_FIXED 1)
     set(GPGMEPP_ERROR_ASSTRING_RETURNS_UTF8_ON_WINDOWS 1)
 endif()
+if (Gpgmepp_VERSION VERSION_GREATER_EQUAL "1.23.0")
+    set(GPGMEPP_KEY_HAS_HASCERTIFY_SIGN_ENCRYPT_AUTHENTICATE 1)
+endif()
 set(QGPGME_NAME "QGpgme")
 find_package(${QGPGME_NAME} ${GPGME_REQUIRED_VERSION} CONFIG REQUIRED)
 if (${QGPGME_NAME}_VERSION VERSION_GREATER_EQUAL "1.18.1")
     set(QGPGME_LISTALLKEYSJOB_HAS_OPTIONS 1)
 endif()
 
 find_package(Boost 1.34.0)
 set_package_properties(Boost PROPERTIES DESCRIPTION "Boost C++ Libraries" URL "https://www.boost.org" TYPE REQUIRED PURPOSE "Boost is required for building most KDEPIM applications")
 
 
 set_package_properties(KPim${KF_MAJOR_VERSION}TextEdit PROPERTIES DESCRIPTION
                        "A textedit with PIM-specific features."
                        URL "https://commits.kde.org/kpimtextedit"
                        TYPE OPTIONAL PURPOSE "Improved audit log viewer.")
 
 ecm_setup_version(PROJECT VARIABLE_PREFIX LIBKLEO
                         VERSION_HEADER "${CMAKE_CURRENT_BINARY_DIR}/libkleo_version.h"
                         PACKAGE_VERSION_FILE "${CMAKE_CURRENT_BINARY_DIR}/KPim${KF_MAJOR_VERSION}LibkleoConfigVersion.cmake"
                         SOVERSION 5
 )
 
 ########### Targets ###########
 ecm_set_disabled_deprecation_versions(QT 5.15.2  KF 5.105.0)
 
 remove_definitions(-DQT_NO_FOREACH)
 add_definitions(-DQT_NO_EMIT)
 ########### CMake Config Files ###########
 set(CMAKECONFIG_INSTALL_DIR "${KDE_INSTALL_CMAKEPACKAGEDIR}/KPim${KF_MAJOR_VERSION}Libkleo")
 set(LIBKLEO_KF5_COMPAT FALSE)
 configure_package_config_file(
   "${CMAKE_CURRENT_SOURCE_DIR}/KPimLibkleoConfig.cmake.in"
   "${CMAKE_CURRENT_BINARY_DIR}/KPim${KF_MAJOR_VERSION}LibkleoConfig.cmake"
   INSTALL_DESTINATION  ${CMAKECONFIG_INSTALL_DIR}
 )
 
 install(FILES
   "${CMAKE_CURRENT_BINARY_DIR}/KPim${KF_MAJOR_VERSION}LibkleoConfig.cmake"
   "${CMAKE_CURRENT_BINARY_DIR}/KPim${KF_MAJOR_VERSION}LibkleoConfigVersion.cmake"
   DESTINATION "${CMAKECONFIG_INSTALL_DIR}"
   COMPONENT Devel
 )
 
 install(EXPORT KPim${KF_MAJOR_VERSION}LibkleoTargets DESTINATION "${CMAKECONFIG_INSTALL_DIR}" FILE KPim${KF_MAJOR_VERSION}LibkleoTargets.cmake NAMESPACE KPim${KF_MAJOR_VERSION}::)
 
 install(FILES
    ${CMAKE_CURRENT_BINARY_DIR}/libkleo_version.h
   DESTINATION ${KDE_INSTALL_INCLUDEDIR}/KPim${KF_MAJOR_VERSION}/Libkleo COMPONENT Devel
 )
 
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config-libkleo.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-libkleo.h)
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 option(USE_UNITY_CMAKE_SUPPORT "Use UNITY cmake support (speedup compile time)" OFF)
 
 set(COMPILE_WITH_UNITY_CMAKE_SUPPORT OFF)
 if (USE_UNITY_CMAKE_SUPPORT)
     set(COMPILE_WITH_UNITY_CMAKE_SUPPORT ON)
 endif()
 
 
 add_subdirectory(src)
 if (BUILD_TESTING)
     add_subdirectory(autotests)
     add_subdirectory(tests)
 endif()
 
 ecm_qt_install_logging_categories(
         EXPORT LIBKLEO
         FILE libkleo.categories
         DESTINATION ${KDE_INSTALL_LOGGINGCATEGORIESDIR}
         )
 
 ki18n_install(po)
 if (BUILD_QCH)
     ecm_install_qch_export(
         TARGETS KPim${KF_MAJOR_VERSION}Libkleo_QCH
         FILE KPim${KF_MAJOR_VERSION}LibkleoQchTargets.cmake
         DESTINATION "${CMAKECONFIG_INSTALL_DIR}"
         COMPONENT Devel
     )
     set(PACKAGE_INCLUDE_QCHTARGETS "include(\"\${CMAKE_CURRENT_LIST_DIR}/KPim${KF_MAJOR_VERSION}LibkleoQchTargets.cmake\")")
 endif()
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
 # add clang-format target for all our real source files
 file(GLOB_RECURSE ALL_CLANG_FORMAT_SOURCE_FILES *.cpp *.h *.c)
 kde_clang_format(${ALL_CLANG_FORMAT_SOURCE_FILES})
 kde_configure_git_pre_commit_hook(CHECKS CLANG_FORMAT)
 
 if (BUILD_WITH_COMPAT_LIBS)
 #if (QT_MAJOR_VERSION STREQUAL "5")
 ##
 # TODO: Backwards compatiblity. Remove in next major version
 ##
 set(CMAKECONFIG_INSTALL_DIR_KF5 "${KDE_INSTALL_CMAKEPACKAGEDIR}/KF5Libkleo")
 set(LIBKLEO_KF5_COMPAT TRUE)
 configure_package_config_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/KPimLibkleoConfig.cmake.in"
     "${CMAKE_CURRENT_BINARY_DIR}/KF5LibkleoConfig.cmake"
     INSTALL_DESTINATION ${CMAKECONFIG_INSTALL_DIR_KF5}
 )
 
 install(FILES
     "${CMAKE_CURRENT_BINARY_DIR}/KF5LibkleoConfig.cmake"
     DESTINATION "${CMAKECONFIG_INSTALL_DIR_KF5}"
     COMPONENT Devel
 )
 install(FILES
     "${CMAKE_CURRENT_BINARY_DIR}/KPim${KF_MAJOR_VERSION}LibkleoConfigVersion.cmake"
     RENAME "KF5LibkleoConfigVersion.cmake"
     DESTINATION "${CMAKECONFIG_INSTALL_DIR_KF5}"
     COMPONENT Devel
 )
 install(EXPORT KPim${KF_MAJOR_VERSION}LibkleoTargets
     DESTINATION "${CMAKECONFIG_INSTALL_DIR_KF5}"
     FILE KPim${KF_MAJOR_VERSION}LibkleoTargets.cmake
     NAMESPACE KF5::
 )
 if (BUILD_QCH)
     install(FILES
         "${CMAKE_CURRENT_BINARY_DIR}/KPim${KF_MAJOR_VERSION}LibkleoQchTargets.cmake"
         DESTINATION "${CMAKECONFIG_INSTALL_DIR_KF5}"
         COMPONENT Devel
     )
 endif()
 #endif()
 endif()
diff --git a/config-libkleo.h.cmake b/config-libkleo.h.cmake
index 3138caae9..c2ea00919 100644
--- a/config-libkleo.h.cmake
+++ b/config-libkleo.h.cmake
@@ -1,8 +1,11 @@
 /* Defined if QGpgME::ListAllKeysJob supports setting options */
 #cmakedefine QGPGME_LISTALLKEYSJOB_HAS_OPTIONS 1
 
 /* Defined if Key::canSign should be used instead of deprecated Key::canReallySign */
 #cmakedefine01 GPGMEPP_KEY_CANSIGN_IS_FIXED
 
 /* Whether Error::asString() returns UTF-8 encoded strings on Windows */
 #cmakedefine01 GPGMEPP_ERROR_ASSTRING_RETURNS_UTF8_ON_WINDOWS
+
+/* Whether Key::hasCertify(), Key::hasSign(), Key::hasEncrypt(), Key::hasAuthenticate() exist */
+#cmakedefine01 GPGMEPP_KEY_HAS_HASCERTIFY_SIGN_ENCRYPT_AUTHENTICATE
diff --git a/src/utils/compat.cpp b/src/utils/compat.cpp
index da58ab720..6c0286ffa 100644
--- a/src/utils/compat.cpp
+++ b/src/utils/compat.cpp
@@ -1,27 +1,73 @@
 /*
     utils/compat.cpp
 
     This file is part of libkleopatra, the KDE keymanagement library
     SPDX-FileCopyrightText: 2021 g10 Code GmbH
     SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-libkleo.h>
 
 #include "compat.h"
 
+#include "algorithm.h"
+
 #include <QGpgME/CryptoConfig>
 
 #include <gpgme++/key.h>
 
 using namespace QGpgME;
 
 QGpgME::CryptoConfigEntry *Kleo::getCryptoConfigEntry(const CryptoConfig *config, const char *componentName, const char *entryName)
 {
     if (!config) {
         return nullptr;
     }
     return config->entry(QString::fromLatin1(componentName), QString::fromLatin1(entryName));
 }
+
+bool Kleo::keyHasCertify(const GpgME::Key &key)
+{
+#if GPGMEPP_KEY_HAS_HASCERTIFY_SIGN_ENCRYPT_AUTHENTICATE
+    return key.hasCertify();
+#else
+    return Kleo::any_of(key.subkeys(), [](const auto &subkey) {
+        return subkey.canCertify();
+    });
+#endif
+}
+
+bool Kleo::keyHasSign(const GpgME::Key &key)
+{
+#if GPGMEPP_KEY_HAS_HASCERTIFY_SIGN_ENCRYPT_AUTHENTICATE
+    return key.hasSign();
+#else
+    return Kleo::any_of(key.subkeys(), [](const auto &subkey) {
+        return subkey.canSign();
+    });
+#endif
+}
+
+bool Kleo::keyHasEncrypt(const GpgME::Key &key)
+{
+#if GPGMEPP_KEY_HAS_HASCERTIFY_SIGN_ENCRYPT_AUTHENTICATE
+    return key.hasEncrypt();
+#else
+    return Kleo::any_of(key.subkeys(), [](const auto &subkey) {
+        return subkey.canEncrypt();
+    });
+#endif
+}
+
+bool Kleo::keyHasAuthenticate(const GpgME::Key &key)
+{
+#if GPGMEPP_KEY_HAS_HASCERTIFY_SIGN_ENCRYPT_AUTHENTICATE
+    return key.hasAuthenticate();
+#else
+    return Kleo::any_of(key.subkeys(), [](const auto &subkey) {
+        return subkey.canAuthenticate();
+    });
+#endif
+}
diff --git a/src/utils/compat.h b/src/utils/compat.h
index c486a3dca..99431164c 100644
--- a/src/utils/compat.h
+++ b/src/utils/compat.h
@@ -1,26 +1,52 @@
 /*
     utils/compat.h
 
     This file is part of libkleopatra, the KDE keymanagement library
     SPDX-FileCopyrightText: 2021 g10 Code GmbH
     SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include "kleo_export.h"
 
+#include <sstream>
+
+namespace GpgME
+{
+class Key;
+}
 namespace QGpgME
 {
 class CryptoConfig;
 class CryptoConfigEntry;
 }
 
 namespace Kleo
 {
 
 KLEO_EXPORT QGpgME::CryptoConfigEntry *getCryptoConfigEntry(const QGpgME::CryptoConfig *config, const char *componentName, const char *entryName);
 
+/**
+ * Returns true, if the key has a certification subkey.
+ * Compatibility function for GpgME::Key::hasCertify() added in GpgME 1.23
+ */
+KLEO_EXPORT bool keyHasCertify(const GpgME::Key &key);
+/**
+ * Returns true, if the key has a signing subkey.
+ * Compatibility function for GpgME::Key::hasSign() added in GpgME 1.23
+ */
+KLEO_EXPORT bool keyHasSign(const GpgME::Key &key);
+/**
+ * Returns true, if the key has an encryption subkey.
+ * Compatibility function for GpgME::Key::hasEncrypt() added in GpgME 1.23
+ */
+KLEO_EXPORT bool keyHasEncrypt(const GpgME::Key &key);
+/**
+ * Returns true, if the key has an authentication subkey.
+ * Compatibility function for GpgME::Key::hasAuthenticate() added in GpgME 1.23
+ */
+KLEO_EXPORT bool keyHasAuthenticate(const GpgME::Key &key);
 }