diff --git a/.github/workflows/build_wheel.yml b/.github/workflows/build_wheel.yml
new file mode 100644
index 0000000..cb0224a
--- /dev/null
+++ b/.github/workflows/build_wheel.yml
@@ -0,0 +1,42 @@
+# Build wheel from source using tox.
+name: build_wheel
+on: [push, pull_request]
+permissions: read-all
+jobs:
+  build_wheel:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        include:
+        - python-version: '3.7'
+          toxenv: 'py37'
+        - python-version: '3.8'
+          toxenv: 'py38'
+        - python-version: '3.9'
+          toxenv: 'py39'
+        - python-version: '3.10'
+          toxenv: 'py310'
+        - python-version: '3.11'
+          toxenv: 'py311'
+        - python-version: '3.12'
+          toxenv: 'py312'
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install build dependencies
+      run: |
+        sudo add-apt-repository universe &&
+        sudo add-apt-repository -y ppa:deadsnakes/ppa &&
+        sudo apt-get update &&
+        sudo apt-get install -y autoconf automake autopoint build-essential git libtool pkg-config python${{ matrix.python-version }} python${{ matrix.python-version }}-dev python${{ matrix.python-version }}-venv python3-distutils python3-pip python3-setuptools
+    - name: Install tox
+      run: |
+        python3 -m pip install tox
+    - name: Download test data
+      run: |
+        if test -x "synctestdata.sh"; then ./synctestdata.sh; fi
+    - name: Prepare build
+      run: |
+        ./synclibs.sh --use-head && ./autogen.sh && ./configure
+    - name: Build Python wheel
+      run: |
+        tox -e${{ matrix.toxenv }}
diff --git a/.gitignore b/.gitignore
index a5716d2..6275278 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 # Files to ignore by git
 #
-# Version: 20230405
+# Version: 20230926
 
 # Generic auto-generated build files
 *~
@@ -25,10 +25,13 @@
 *.swp
 *.Tpo
 *.trs
+*.whl
 /*.egg-info/
+__pycache__
 .deps
 .dirstamp
 .libs
+.tox
 INSTALL
 Makefile
 Makefile.bcc
@@ -125,6 +128,7 @@ stamp-h[1-9]
 /libhmac/libhmac.rc
 /libhmac/libhmac_definitions.h
 /pyhmac-python[23]/*.[ch]
+/setup.cfg
 /hmactools/*.exe
 /hmactools/hmacsum
 /tests/*.exe
diff --git a/Makefile.am b/Makefile.am
index d4ba0f6..439f944 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -43,6 +43,9 @@ PKGCONFIG_FILES = \
 	libhmac.pc.in
 
 SETUP_PY_FILES = \
+	pyproject.toml \
+	setup.cfg \
+	setup.cfg.in \
 	setup.py
 
 SPEC_FILES = \
diff --git a/appveyor.yml b/appveyor.yml
index 5e4a00d..426a9e7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -183,7 +183,7 @@ environment:
 install:
 - cmd: if [%BUILD_ENVIRONMENT%]==[msbuild] (
     git clone https://github.com/libyal/vstools.git ..\vstools )
-- sh: if test ${BUILD_ENVIRONMENT} = "python-tox" || test ${BUILD_ENVIRONMENT} = "xcode"; then brew update -q; fi
+- sh: if test ${BUILD_ENVIRONMENT} = "python-tox" || test ${BUILD_ENVIRONMENT} = "xcode"; then brew update-reset && brew update -q; fi
 - sh: if test ${BUILD_ENVIRONMENT} = "python-tox" || test ${BUILD_ENVIRONMENT} = "xcode"; then brew install -q gettext gnu-sed || true; fi
 - sh: if test ${BUILD_ENVIRONMENT} = "python-tox"; then brew install -q python@${PYTHON_VERSION} tox twine-pypi || true; fi
 - cmd: if [%BUILD_ENVIRONMENT%]==[python] (
@@ -193,7 +193,7 @@ install:
 - cmd: if [%BUILD_ENVIRONMENT%]==[cygwin64] (
     C:\cygwin64\setup-x86_64.exe -qgnNdO -l C:\cygwin64\var\cache\setup -R c:\cygwin64 -s http://cygwin.mirror.constant.com -P gettext-devel -P wget -P zlib-devel -P libssl-devel -P python3-devel )
 - cmd: if [%BUILD_ENVIRONMENT%]==[mingw-w64] (
-    C:\msys64\usr\bin\pacman -S --noconfirm --needed autoconf automake gcc gettext-devel libtool make )
+    C:\msys64\usr\bin\pacman -S --noconfirm --needed autoconf automake gettext-devel libtool make mingw-w64-x86_64-gcc )
 - ps: If ( ( "cygwin64-gcc-no-optimization", "mingw-w64-gcc-no-optimization" ).Contains( $env:TARGET ) ) {
     $ProgressPreference = 'SilentlyContinue'; Invoke-WebRequest -Uri https://uploader.codecov.io/latest/windows/codecov.exe -Outfile ..\codecov.exe }
 
diff --git a/configure.ac b/configure.ac
index 36162f0..0a76078 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ AC_PREREQ([2.71])
 
 AC_INIT(
  [libhmac],
- [20230630],
+ [20231005],
  [joachim.metz@gmail.com])
 
 AC_CONFIG_SRCDIR(
@@ -179,6 +179,7 @@ AC_CONFIG_FILES([dpkg/changelog])
 AC_CONFIG_FILES([libhmac/libhmac.rc])
 AC_CONFIG_FILES([libhmac.pc])
 AC_CONFIG_FILES([libhmac.spec])
+AC_CONFIG_FILES([setup.cfg])
 dnl Generate a source configuration file
 AC_CONFIG_HEADERS([common/config.h])
 
diff --git a/libhmac.spec.in b/libhmac.spec.in
index 354e5f7..0a85a65 100644
--- a/libhmac.spec.in
+++ b/libhmac.spec.in
@@ -3,10 +3,9 @@ Version: @VERSION@
 Release: 1
 Summary: Library to support various Hash-based Message Authentication Codes (HMAC)
 Group: System Environment/Libraries
-License: LGPLv3+
+License: LGPL-3.0-or-later
 Source: %{name}-%{version}.tar.gz
 URL: https://github.com/libyal/libhmac
-BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 @libhmac_spec_requires@ @ax_libcerror_spec_requires@ @ax_libcrypto_spec_requires@ @ax_libcthreads_spec_requires@
 BuildRequires: gcc @ax_libcerror_spec_build_requires@ @ax_libcrypto_spec_build_requires@ @ax_libcthreads_spec_build_requires@
 
@@ -66,19 +65,16 @@ rm -rf %{buildroot}
 %postun -p /sbin/ldconfig
 
 %files -n libhmac
-%defattr(644,root,root,755)
 %license COPYING COPYING.LESSER
 %doc AUTHORS README
-%attr(755,root,root) %{_libdir}/*.so.*
+%{_libdir}/*.so.*
 
 %files -n libhmac-static
-%defattr(644,root,root,755)
 %license COPYING COPYING.LESSER
 %doc AUTHORS README
-%attr(755,root,root) %{_libdir}/*.a
+%{_libdir}/*.a
 
 %files -n libhmac-devel
-%defattr(644,root,root,755)
 %license COPYING COPYING.LESSER
 %doc AUTHORS README
 %{_libdir}/*.so
@@ -87,17 +83,15 @@ rm -rf %{buildroot}
 %{_mandir}/man3/*
 
 %files -n libhmac-python3
-%defattr(644,root,root,755)
 %license COPYING COPYING.LESSER
 %doc AUTHORS README
 %{_libdir}/python3*/site-packages/*.a
 %{_libdir}/python3*/site-packages/*.so
 
 %files -n libhmac-tools
-%defattr(644,root,root,755)
 %license COPYING COPYING.LESSER
 %doc AUTHORS README
-%attr(755,root,root) %{_bindir}/*
+%{_bindir}/*
 %{_mandir}/man1/*
 
 %changelog
diff --git a/libhmac/libhmac_md5_context.c b/libhmac/libhmac_md5_context.c
index 58f59e8..bd42264 100644
--- a/libhmac/libhmac_md5_context.c
+++ b/libhmac/libhmac_md5_context.c
@@ -1088,24 +1088,14 @@ int libhmac_md5_context_finalize(
 
 		return( -1 );
 	}
-	if( hash_size > (size_t) UINT_MAX )
+	if( ( hash_size < (size_t) LIBHMAC_MD5_HASH_SIZE )
+	 || ( hash_size > (size_t) UINT_MAX ) )
 	{
 		libcerror_error_set(
 		 error,
 		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
-		 "%s: invalid hash size value exceeds maximum.",
-		 function );
-
-		return( -1 );
-	}
-	if( hash_size < (size_t) LIBHMAC_MD5_HASH_SIZE )
-	{
-		libcerror_error_set(
-		 error,
-		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
-		 "%s: invalid hash size value too small.",
+		 LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
+		 "%s: invalid hash size value out of bounds.",
 		 function );
 
 		return( -1 );
diff --git a/libhmac/libhmac_sha1_context.c b/libhmac/libhmac_sha1_context.c
index 19d2638..c78e032 100644
--- a/libhmac/libhmac_sha1_context.c
+++ b/libhmac/libhmac_sha1_context.c
@@ -1161,24 +1161,14 @@ int libhmac_sha1_context_finalize(
 
 		return( -1 );
 	}
-	if( hash_size > (size_t) UINT_MAX )
+	if( ( hash_size < (size_t) LIBHMAC_SHA1_HASH_SIZE )
+	 || ( hash_size > (size_t) UINT_MAX ) )
 	{
 		libcerror_error_set(
 		 error,
 		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
-		 "%s: invalid hash size value exceeds maximum.",
-		 function );
-
-		return( -1 );
-	}
-	if( hash_size < (size_t) LIBHMAC_SHA1_HASH_SIZE )
-	{
-		libcerror_error_set(
-		 error,
-		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
-		 "%s: invalid hash size value too small.",
+		 LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
+		 "%s: invalid hash size value out of bounds.",
 		 function );
 
 		return( -1 );
diff --git a/libhmac/libhmac_sha224_context.c b/libhmac/libhmac_sha224_context.c
index 4ea42fb..ed112d0 100644
--- a/libhmac/libhmac_sha224_context.c
+++ b/libhmac/libhmac_sha224_context.c
@@ -1120,24 +1120,14 @@ int libhmac_sha224_context_finalize(
 
 		return( -1 );
 	}
-	if( hash_size > (size_t) UINT_MAX )
+	if( ( hash_size < (size_t) LIBHMAC_SHA224_HASH_SIZE )
+	 || ( hash_size > (size_t) UINT_MAX ) )
 	{
 		libcerror_error_set(
 		 error,
 		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
-		 "%s: invalid hash size value exceeds maximum.",
-		 function );
-
-		return( -1 );
-	}
-	if( hash_size < (size_t) LIBHMAC_SHA224_HASH_SIZE )
-	{
-		libcerror_error_set(
-		 error,
-		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
-		 "%s: invalid hash size value too small.",
+		 LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
+		 "%s: invalid hash size value out of bounds.",
 		 function );
 
 		return( -1 );
diff --git a/libhmac/libhmac_sha256_context.c b/libhmac/libhmac_sha256_context.c
index 50288fd..2f03b9d 100644
--- a/libhmac/libhmac_sha256_context.c
+++ b/libhmac/libhmac_sha256_context.c
@@ -1120,24 +1120,14 @@ int libhmac_sha256_context_finalize(
 
 		return( -1 );
 	}
-	if( hash_size > (size_t) UINT_MAX )
+	if( ( hash_size < (size_t) LIBHMAC_SHA256_HASH_SIZE )
+	 || ( hash_size > (size_t) UINT_MAX ) )
 	{
 		libcerror_error_set(
 		 error,
 		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
-		 "%s: invalid hash size value exceeds maximum.",
-		 function );
-
-		return( -1 );
-	}
-	if( hash_size < (size_t) LIBHMAC_SHA256_HASH_SIZE )
-	{
-		libcerror_error_set(
-		 error,
-		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
-		 "%s: invalid hash size value too small.",
+		 LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
+		 "%s: invalid hash size value out of bounds.",
 		 function );
 
 		return( -1 );
diff --git a/libhmac/libhmac_sha512_context.c b/libhmac/libhmac_sha512_context.c
index 0c50049..086cdf1 100644
--- a/libhmac/libhmac_sha512_context.c
+++ b/libhmac/libhmac_sha512_context.c
@@ -1156,24 +1156,14 @@ int libhmac_sha512_context_finalize(
 
 		return( -1 );
 	}
-	if( hash_size > (size_t) UINT_MAX )
+	if( ( hash_size < (size_t) LIBHMAC_SHA512_HASH_SIZE )
+	 || ( hash_size > (size_t) UINT_MAX ) )
 	{
 		libcerror_error_set(
 		 error,
 		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
-		 "%s: invalid hash size value exceeds maximum.",
-		 function );
-
-		return( -1 );
-	}
-	if( hash_size < (size_t) LIBHMAC_SHA512_HASH_SIZE )
-	{
-		libcerror_error_set(
-		 error,
-		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
-		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
-		 "%s: invalid hash size value too small.",
+		 LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
+		 "%s: invalid hash size value out of bounds.",
 		 function );
 
 		return( -1 );
diff --git a/m4/libuna.m4 b/m4/libuna.m4
index 8357c3d..4462a91 100644
--- a/m4/libuna.m4
+++ b/m4/libuna.m4
@@ -1,6 +1,6 @@
 dnl Checks for libuna or required headers and functions
 dnl
-dnl Version: 20210801
+dnl Version: 20230702
 
 dnl Function to detect if a specific libuna definition is available.
 AC_DEFUN([AX_LIBUNA_CHECK_DEFINITION],
@@ -43,7 +43,7 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
         [test "x$cross_compiling" != "xyes" && test "x$PKGCONFIG" != "x"],
         [PKG_CHECK_MODULES(
           [libuna],
-          [libuna >= 20210801],
+          [libuna >= 20230702],
           [ac_cv_libuna=yes],
           [ac_cv_libuna=check])
         ])
@@ -225,6 +225,138 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
 
+        dnl Unicode character functions
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_size_to_byte_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_byte_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_byte_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_size_to_ucs2,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_ucs2,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_ucs2,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_size_to_ucs4,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_ucs4,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_ucs4,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_utf7_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_utf7_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_size_to_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_size_to_utf8_rfc2279,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_utf8_rfc2279,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_utf8_rfc2279,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_size_to_utf16,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_utf16,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_utf16,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_utf16_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_utf16_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_utf32,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_utf32,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_from_utf32_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_unicode_character_copy_to_utf32_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+
         dnl UTF-8 stream functions
         AC_CHECK_LIB(
           una,
@@ -337,6 +469,11 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf8_string_with_index_copy_from_byte_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf8_string_compare_with_byte_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
           libuna_utf8_string_size_from_utf7_stream,
@@ -352,6 +489,11 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf8_string_with_index_copy_from_utf7_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf8_string_compare_with_utf7_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
           libuna_utf8_string_size_from_utf8_stream,
@@ -369,47 +511,47 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_size_from_utf16_stream,
+          libuna_utf8_string_compare_with_utf8_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_copy_from_utf16_stream,
+          libuna_utf8_string_size_from_utf16,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_with_index_copy_from_utf16_stream,
+          libuna_utf8_string_copy_from_utf16,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_size_from_utf32_stream,
+          libuna_utf8_string_with_index_copy_from_utf16,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_copy_from_utf32_stream,
+          libuna_utf8_string_compare_with_utf16,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_with_index_copy_from_utf32_stream,
+          libuna_utf8_string_size_from_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_size_from_utf16,
+          libuna_utf8_string_copy_from_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_copy_from_utf16,
+          libuna_utf8_string_with_index_copy_from_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf8_string_with_index_copy_from_utf16,
+          libuna_utf8_string_compare_with_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
@@ -427,6 +569,31 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf8_string_with_index_copy_from_utf32,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf8_string_compare_with_utf32,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf8_string_size_from_utf32_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf8_string_copy_from_utf32_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf8_string_with_index_copy_from_utf32_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf8_string_compare_with_utf32_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
           libuna_utf8_string_size_from_scsu_stream,
@@ -459,6 +626,11 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf16_string_with_index_copy_from_byte_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf16_string_compare_with_byte_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
           libuna_utf16_string_size_from_utf7_stream,
@@ -474,6 +646,27 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf16_string_with_index_copy_from_utf7_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf16_string_compare_with_utf7_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf16_string_size_from_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf16_string_copy_from_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf16_string_with_index_copy_from_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        dnl libuna_utf16_string_compare_with_utf8 is implemented by libuna_utf8_string_compare_with_utf16
         AC_CHECK_LIB(
           una,
           libuna_utf16_string_size_from_utf8_stream,
@@ -489,6 +682,11 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf16_string_with_index_copy_from_utf8_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf16_string_compare_with_utf8_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
           libuna_utf16_string_size_from_utf16_stream,
@@ -506,47 +704,47 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_size_from_utf32_stream,
+          libuna_utf16_string_compare_with_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_copy_from_utf32_stream,
+          libuna_utf16_string_size_from_utf32,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_with_index_copy_from_utf32_stream,
+          libuna_utf16_string_copy_from_utf32,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_size_from_utf8,
+          libuna_utf16_string_with_index_copy_from_utf32,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_copy_from_utf8,
+          libuna_utf16_string_compare_with_utf32,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_with_index_copy_from_utf8,
+          libuna_utf16_string_size_from_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_size_from_utf32,
+          libuna_utf16_string_copy_from_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_copy_from_utf32,
+          libuna_utf16_string_with_index_copy_from_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf16_string_with_index_copy_from_utf32,
+          libuna_utf16_string_compare_with_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
@@ -581,6 +779,11 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf32_string_with_index_copy_from_byte_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf32_string_compare_with_byte_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
           libuna_utf32_string_size_from_utf7_stream,
@@ -596,11 +799,31 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           libuna_utf32_string_with_index_copy_from_utf7_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf32_string_compare_with_utf7_stream,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
           libuna_utf32_string_size_from_utf8_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf32_string_size_from_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          una,
+          libuna_utf32_string_copy_from_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        AC_CHECK_LIB(
+          libuna_utf32_string_with_index_copy_from_utf8,
+          [ac_cv_libuna_dummy=yes],
+          [ac_cv_libuna=no])
+        dnl libuna_utf32_string_compare_with_utf8 is implemented by libuna_utf8_string_compare_with_utf32
         AC_CHECK_LIB(
           una,
           libuna_utf32_string_copy_from_utf8_stream,
@@ -613,61 +836,63 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_size_from_utf16_stream,
+          libuna_utf32_string_compare_with_utf8_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_copy_from_utf16_stream,
+          libuna_utf32_string_size_from_utf16,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_with_index_copy_from_utf16_stream,
+          libuna_utf32_string_copy_from_utf16,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_size_from_utf32_stream,
+          libuna_utf32_string_with_index_copy_from_utf16,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
+        dnl libuna_utf32_string_compare_with_utf16 is implemented by libuna_utf16_string_compare_with_utf32
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_copy_from_utf32_stream,
+          libuna_utf32_string_size_from_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_with_index_copy_from_utf32_stream,
+          libuna_utf32_string_copy_from_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_size_from_utf8,
+          libuna_utf32_string_with_index_copy_from_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_copy_from_utf8,
+          libuna_utf32_string_compare_with_utf16_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
-          libuna_utf32_string_with_index_copy_from_utf8,
+          una,
+          libuna_utf32_string_size_from_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_size_from_utf16,
+          libuna_utf32_string_copy_from_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_copy_from_utf16,
+          libuna_utf32_string_with_index_copy_from_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
           una,
-          libuna_utf32_string_with_index_copy_from_utf16,
+          libuna_utf32_string_compare_with_utf32_stream,
           [ac_cv_libuna_dummy=yes],
           [ac_cv_libuna=no])
         AC_CHECK_LIB(
@@ -708,6 +933,13 @@ AC_DEFUN([AX_LIBUNA_CHECK_LIB],
           [test "x$ac_cv_libuna_defines_compare_less" != xyes],
           [ac_cv_libuna=no])
 
+        AX_LIBUNA_CHECK_DEFINITION(
+          LIBUNA_UTF16_STREAM_ALLOW_UNPAIRED_SURROGATE,
+          [ac_cv_libuna_defines_compare_greater])
+        AS_IF(
+          [test "x$ac_cv_libuna_defines_utf16_stream_allow_unpaired_surrogate" != xyes],
+          [ac_cv_libuna=no])
+
         ac_cv_libuna_LIBADD="-luna"])
       ])
     AS_IF(
diff --git a/m4/python.m4 b/m4/python.m4
index 307e15c..e10bc9f 100644
--- a/m4/python.m4
+++ b/m4/python.m4
@@ -1,6 +1,6 @@
 dnl Functions for Python bindings
 dnl
-dnl Version: 20211114
+dnl Version: 20230923
 
 dnl Function to check if the python binary is available
 dnl "python${PYTHON_VERSION} python python# python#.#"
@@ -8,7 +8,7 @@ AC_DEFUN([AX_PROG_PYTHON],
   [AS_IF(
     [test "x${PYTHON_VERSION}" != x],
     [ax_python_progs="python${PYTHON_VERSION}"],
-    [ax_python_progs="python python3 python3.11 python3.10 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 python2 python2.7 python2.6 python2.5"])
+    [ax_python_progs="python python3 python3.12 python3.11 python3.10 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 python2 python2.7 python2.6 python2.5"])
   AC_CHECK_PROGS(
     [PYTHON],
     [$ax_python_progs])
@@ -58,7 +58,7 @@ AC_DEFUN([AX_PROG_PYTHON2],
 dnl Function to check if the python3 binary is available
 dnl "python3 python3.#"
 AC_DEFUN([AX_PROG_PYTHON3],
-  [ax_python3_progs="python3 python3.11 python3.10 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0"
+  [ax_python3_progs="python3 python3.12 python3.11 python3.10 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0"
   AC_CHECK_PROGS(
     [PYTHON3],
     [$ax_python3_progs])
@@ -95,7 +95,7 @@ AC_DEFUN([AX_PROG_PYTHON_CONFIG],
     [test "x${PYTHON_CONFIG}" = x],
     [AC_CHECK_PROGS(
       [PYTHON_CONFIG],
-      [python-config python3-config python3.11-config python3.10-config python3.9-config python3.8-config python3.7-config python3.6-config python3.5-config python3.4-config python3.3-config python3.2-config python3.1-config python3.0-config python2-config python2.7-config python2.6-config python2.5-config])
+      [python-config python3-config python3.12-config python3.11-config python3.10-config python3.9-config python3.8-config python3.7-config python3.6-config python3.5-config python3.4-config python3.3-config python3.2-config python3.1-config python3.0-config python2-config python2.7-config python2.6-config python2.5-config])
     ])
   AS_IF(
     [test "x${PYTHON_CONFIG}" = x],
@@ -131,7 +131,7 @@ AC_DEFUN([AX_PROG_PYTHON3_CONFIG],
     [test "x${PYTHON3_CONFIG}" = x],
     [AC_CHECK_PROGS(
       [PYTHON3_CONFIG],
-      [python3-config python3.11-config python3.10-config python3.9-config python3.8-config python3.7-config python3.6-config python3.5-config python3.4-config python3.3-config python3.2-config python3.1-config python3.0-config])
+      [python3-config python3.12-config python3.11-config python3.10-config python3.9-config python3.8-config python3.7-config python3.6-config python3.5-config python3.4-config python3.3-config python3.2-config python3.1-config python3.0-config])
     ])
   AS_IF(
     [test "x${PYTHON3_CONFIG}" = x],
diff --git a/pyhmac/pyhmac.c b/pyhmac/pyhmac.c
index 0cf0c50..ecbe961 100644
--- a/pyhmac/pyhmac.c
+++ b/pyhmac/pyhmac.c
@@ -134,7 +134,6 @@ PyObject *pyhmac_get_version(
            PyObject *self PYHMAC_ATTRIBUTE_UNUSED,
            PyObject *arguments PYHMAC_ATTRIBUTE_UNUSED )
 {
-	const char *errors           = NULL;
 	const char *version_string   = NULL;
 	size_t version_string_length = 0;
 
@@ -157,7 +156,7 @@ PyObject *pyhmac_get_version(
 	return( PyUnicode_DecodeUTF8(
 	         version_string,
 	         (Py_ssize_t) version_string_length,
-	         errors ) );
+	         NULL ) );
 }
 
 #if PY_MAJOR_VERSION >= 3
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..1870a2e
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,4 @@
+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 1ded777..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,2 +0,0 @@
-[metadata]
-license_files = COPYING COPYING.LESSER
diff --git a/setup.cfg.in b/setup.cfg.in
new file mode 100644
index 0000000..4ee83bd
--- /dev/null
+++ b/setup.cfg.in
@@ -0,0 +1,15 @@
+[metadata]
+name = libhmac-python
+version = @VERSION@
+description = Python bindings module for libhmac
+long_description = Python bindings module for libhmac
+author = Joachim Metz
+author_email = joachim.metz@gmail.com
+license = GNU Lesser General Public License v3 or later (LGPLv3+)
+license_files = COPYING COPYING.LESSER
+classifiers =
+  Development Status :: 3 - Alpha
+  Programming Language :: Python
+
+[options]
+python_requires = >=3.7
diff --git a/setup.py b/setup.py
index afd9215..3a86854 100755
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 #
 # Script to build and install Python-bindings.
-# Version: 20230411
+# Version: 20230909
 
 from __future__ import print_function
 
@@ -25,44 +25,11 @@
 from setuptools.command.build_ext import build_ext
 from setuptools.command.sdist import sdist
 
-try:
-  from distutils.command.bdist_msi import bdist_msi
-except ImportError:
-  bdist_msi = None
 
-try:
-  from setuptools.command.bdist_rpm import bdist_rpm
-except ImportError:
-  from distutils.command.bdist import bdist as bdist_rpm
-
-
-if not bdist_msi:
-  custom_bdist_msi = None
-else:
-  class custom_bdist_msi(bdist_msi):
-    """Custom handler for the bdist_msi command."""
-
-    def run(self):
-      """Builds an MSI."""
-      # Make a deepcopy of distribution so the following version changes
-      # only apply to bdist_msi.
-      self.distribution = copy.deepcopy(self.distribution)
-
-      # bdist_msi does not support the library version so we add ".1"
-      # as a work around.
-      self.distribution.metadata.version = "{0:s}.1".format(
-          self.distribution.metadata.version)
-
-      bdist_msi.run(self)
-
-
-class custom_bdist_rpm(bdist_rpm):
-  """Custom handler for the bdist_rpm command."""
-
-  def run(self):
-    """Builds a RPM."""
-    print("'setup.py bdist_rpm' command not supported use 'rpmbuild' instead.")
-    sys.exit(1)
+if (sys.version_info[0], sys.version_info[1]) < (3, 7):
+  print(("Unsupported Python version: {0:s}, version 3.7 or higher "
+         "required.").format(sys.version))
+  sys.exit(1)
 
 
 class custom_build_ext(build_ext):
@@ -218,49 +185,25 @@ def module_name(self):
     """The Python module name."""
     return "py{0:s}".format(self.library_name[3:])
 
-  @property
-  def package_name(self):
-    """The package name."""
-    return "{0:s}-python".format(self.library_name)
-
-  @property
-  def package_description(self):
-    """The package description."""
-    return "Python bindings module for {0:s}".format(self.library_name)
-
-  @property
-  def project_url(self):
-    """The project URL."""
-    return "https://github.com/libyal/{0:s}/".format(self.library_name)
-
   def _ReadConfigureAc(self):
     """Reads configure.ac to initialize the project information."""
-    file_object = open("configure.ac", "rb")
-    if not file_object:
-      raise IOError("Unable to open: configure.ac")
-
-    found_ac_init = False
-    found_library_name = False
-    for line in file_object.readlines():
-      line = line.strip()
-      if found_library_name:
-        library_version = line[1:-2]
-        if sys.version_info[0] >= 3:
-          library_version = library_version.decode("ascii")
-        self.library_version = library_version
-        break
-
-      elif found_ac_init:
-        library_name = line[1:-2]
-        if sys.version_info[0] >= 3:
-          library_name = library_name.decode("ascii")
-        self.library_name = library_name
-        found_library_name = True
-
-      elif line.startswith(b"AC_INIT"):
-        found_ac_init = True
-
-    file_object.close()
+    with open("configure.ac", "r", encoding="utf-8") as file_object:
+      found_ac_init = False
+      found_library_name = False
+      for line in file_object.readlines():
+        line = line.strip()
+        if found_library_name:
+          library_version = line[1:-2]
+          self.library_version = library_version
+          break
+
+        elif found_ac_init:
+          library_name = line[1:-2]
+          self.library_name = library_name
+          found_library_name = True
+
+        elif line.startswith("AC_INIT"):
+          found_ac_init = True
 
     if not self.library_name or not self.library_version:
       raise RuntimeError(
@@ -271,30 +214,23 @@ def _ReadMakefileAm(self):
     if not self.library_name:
       raise RuntimeError("Missing library name")
 
-    file_object = open("Makefile.am", "rb")
-    if not file_object:
-      raise IOError("Unable to open: Makefile.am")
-
-    found_subdirs = False
-    for line in file_object.readlines():
-      line = line.strip()
-      if found_subdirs:
-        library_name, _, _ = line.partition(b" ")
-        if sys.version_info[0] >= 3:
-          library_name = library_name.decode("ascii")
+    with open("Makefile.am", "r", encoding="utf-8") as file_object:
+      found_subdirs = False
+      for line in file_object.readlines():
+        line = line.strip()
+        if found_subdirs:
+          library_name, _, _ = line.partition(" ")
 
-        self.include_directories.append(library_name)
+          self.include_directories.append(library_name)
 
-        if library_name.startswith("lib"):
-          self.library_names.append(library_name)
+          if library_name.startswith("lib"):
+            self.library_names.append(library_name)
 
-        if library_name == self.library_name:
-          break
+          if library_name == self.library_name:
+            break
 
-      elif line.startswith(b"SUBDIRS"):
-        found_subdirs = True
-
-    file_object.close()
+        elif line.startswith("SUBDIRS"):
+          found_subdirs = True
 
     if not self.include_directories or not self.library_names:
       raise RuntimeError(
@@ -306,12 +242,8 @@ def _ReadMakefileAm(self):
 
 CMDCLASS = {
   "build_ext": custom_build_ext,
-  "bdist_rpm": custom_bdist_rpm,
   "sdist": custom_sdist}
 
-if custom_bdist_msi:
-  CMDCLASS["bdist_msi"] = custom_bdist_msi
-
 SOURCES = []
 
 # TODO: replace by detection of MSC
@@ -344,18 +276,7 @@ def _ReadMakefileAm(self):
 # TODO: find a way to detect missing python.h
 # e.g. on Ubuntu python-dev is not installed by python-pip
 
-# TODO: what about description and platform in egg file
-
-setup(
-    name=project_information.package_name,
-    url=project_information.project_url,
-    version=project_information.library_version,
-    description=project_information.package_description,
-    long_description=project_information.package_description,
-    long_description_content_type="text/plain",
-    author="Joachim Metz",
-    author_email="joachim.metz@gmail.com",
-    license="GNU Lesser General Public License v3 or later (LGPLv3+)",
+setup_args = dict(
     cmdclass=CMDCLASS,
     ext_modules=[
         Extension(
@@ -364,8 +285,9 @@ def _ReadMakefileAm(self):
             include_dirs=project_information.include_directories,
             libraries=[],
             library_dirs=[],
-            sources=SOURCES,
-        ),
-    ],
+            sources=SOURCES
+        )
+    ]
 )
+setup(**setup_args)
 
diff --git a/tests/runtests.py b/tests/runtests.py
new file mode 100755
index 0000000..271948a
--- /dev/null
+++ b/tests/runtests.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+#
+# Script to run Python test scripts.
+#
+# Version: 20231004
+
+import glob
+import os
+import sys
+import unittest
+
+
+test_profile = ".pybde"
+input_glob = "*"
+option_sets = ["offset", "password", "recovery_password", "startup_key"]
+
+
+def ReadIgnoreList(test_profile):
+  """Reads the test profile ignore file if it exists.
+
+  Args:
+    test_profile (str): test profile.
+
+  Returns:
+    set[str]: ignore list.
+  """
+  ignore_file_path = os.path.join("tests", "input", test_profile, "ignore")
+  if os.path.isfile(ignore_file_path):
+    with open(ignore_file_path, "r", encoding="utf-8") as file_object:
+      return set([line.strip() for line in file_object.readlines()])
+
+  return set()
+
+
+if __name__ == "__main__":
+  print(f"Using Python version {sys.version!s}")
+
+  test_loader = unittest.TestLoader()
+  test_runner = unittest.TextTestRunner(verbosity=2)
+
+  test_scripts = test_loader.discover("tests", pattern="*.py")
+
+  ignore_list = ReadIgnoreList(test_profile)
+
+  test_set = None
+  source_file = None
+
+  for test_set in glob.glob(os.path.join("tests", "input", "*")):
+    test_set = test_set.rsplit(os.path.sep, maxsplit=1)[-1]
+    if not test_set or test_set[0] == '.' or test_set in ignore_list:
+      continue
+
+    source_files = glob.glob(os.path.join(
+        "tests", "input", test_set, input_glob))
+    if source_files:
+      source_file = source_files[0]
+      break
+
+  setattr(unittest, "source", source_file)
+
+  for option_set in option_sets:
+    test_file = os.path.basename(source_file)
+    test_options_file_path = os.path.join(
+        "tests", "input", test_profile, test_set,
+        f"{test_file:s}.{option_set:s}")
+    if os.path.isfile(test_options_file_path):
+      with open(test_options_file_path, "r", encoding="utf-8") as file_object:
+        lines = [line.strip() for line in file_object.readlines()]
+        if lines[0] == "# libyal test data options":
+          for line in lines[1:]:
+            key, value = line.split("=", maxsplit=1)
+            setattr(unittest, key, value)
+
+  test_results = test_runner.run(test_scripts)
+  if not test_results.wasSuccessful():
+    sys.exit(1)
diff --git a/tests/test_library.sh b/tests/test_library.sh
index b27b379..24aae74 100755
--- a/tests/test_library.sh
+++ b/tests/test_library.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # Tests library functions and types.
 #
-# Version: 20230410
+# Version: 20231005
 
 EXIT_SUCCESS=0;
 EXIT_FAILURE=1;
@@ -9,7 +9,7 @@ EXIT_IGNORE=77;
 
 LIBRARY_TESTS="error md5 md5_context sha1 sha1_context sha224 sha224_context sha256 sha256_context sha512 sha512_context support";
 LIBRARY_TESTS_WITH_INPUT="";
-OPTION_SETS="";
+OPTION_SETS=();
 
 INPUT_GLOB="*";
 
@@ -78,47 +78,52 @@ run_test_with_input()
 
 		local TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
 
-		local OLDIFS=${IFS};
-
-		# IFS="\n" is not supported by all platforms.
-		IFS="
-";
-
 		if test -f "${TEST_SET_DIRECTORY}/files";
 		then
-			for INPUT_FILE in `cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?"`;
+			IFS="" read -a INPUT_FILES <<< $(cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?");
+		else
+			IFS="" read -a INPUT_FILES <<< $(ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB});
+		fi
+		for INPUT_FILE in "${INPUT_FILES[@]}";
+		do
+			if test "${OSTYPE}" = "msys";
+			then
+				# A test executable built with MinGW expects a Windows path.
+				INPUT_FILE=`echo ${INPUT_FILE} | sed 's?/?\\\\?g'`;
+			fi
+			local TESTED_WITH_OPTIONS=0;
+
+			for OPTION_SET in ${OPTION_SETS[@]};
 			do
-				if test "${OSTYPE}" = "msys";
-				then
-					# A test executable built with MinGW expects a Windows path.
-					INPUT_FILE=`echo ${INPUT_FILE} | sed 's?/?\\\\?g'`;
-				fi
-				run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
-				RESULT=$?;
+				local TEST_DATA_OPTION_FILE=$(get_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
 
-				if test ${RESULT} -ne ${EXIT_SUCCESS};
+				if test -f ${TEST_DATA_OPTION_FILE};
 				then
-					break;
+					TESTED_WITH_OPTIONS=1;
+
+					IFS=" " read -a OPTIONS <<< $(read_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+					run_test_on_input_file "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "${OPTION_SET}" "${TEST_EXECUTABLE}" "${INPUT_FILE}" "${OPTIONS[@]}";
+					RESULT=$?;
+
+					if test ${RESULT} -ne ${EXIT_SUCCESS};
+					then
+						break;
+					fi
 				fi
 			done
-		else
-			for INPUT_FILE in `ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB}`;
-			do
-				if test "${OSTYPE}" = "msys";
-				then
-					# A test executable built with MinGW expects a Windows path.
-					INPUT_FILE=`echo ${INPUT_FILE} | sed 's?/?\\\\?g'`;
-				fi
-				run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
+
+			if test ${TESTED_WITH_OPTIONS} -eq 0;
+			then
+				run_test_on_input_file "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
 				RESULT=$?;
+			fi
 
-				if test ${RESULT} -ne ${EXIT_SUCCESS};
-				then
-					break;
-				fi
-			done
-		fi
-		IFS=${OLDIFS};
+			if test ${RESULT} -ne ${EXIT_SUCCESS};
+			then
+				break;
+			fi
+		done
 
 		if test ${RESULT} -ne ${EXIT_SUCCESS};
 		then
diff --git a/tests/test_md5sum.sh b/tests/test_md5sum.sh
index f09e7ec..af6ce83 100755
--- a/tests/test_md5sum.sh
+++ b/tests/test_md5sum.sh
@@ -1,12 +1,14 @@
 #!/usr/bin/env bash
 # Sum tool testing script
 #
-# Version: 20230410
+# Version: 20231001
 
 EXIT_SUCCESS=0;
 EXIT_FAILURE=1;
 EXIT_IGNORE=77;
 
+PROFILES=("hmacsum");
+OPTIONS_PER_PROFILE=("")
 OPTION_SETS="";
 
 INPUT_GLOB="*";
@@ -113,61 +115,88 @@ then
 	return ${EXIT_IGNORE};
 fi
 
-TEST_PROFILE_DIRECTORY=$(get_test_profile_directory "input" "hmacsum");
-
-IGNORE_LIST=$(read_ignore_list "${TEST_PROFILE_DIRECTORY}");
-
 RESULT=${EXIT_SUCCESS};
 
-for TEST_SET_INPUT_DIRECTORY in input/*;
+for PROFILE_INDEX in ${!PROFILES[*]};
 do
-	if ! test -d "${TEST_SET_INPUT_DIRECTORY}";
-	then
-		continue;
-	fi
-	if check_for_directory_in_ignore_list "${TEST_SET_INPUT_DIRECTORY}" "${IGNORE_LIST}";
-	then
-		continue;
-	fi
+	TEST_PROFILE=${PROFILES[${PROFILE_INDEX}]};
 
-	TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
+	TEST_PROFILE_DIRECTORY=$(get_test_profile_directory "input" "${TEST_PROFILE}");
 
-	OLDIFS=${IFS};
+	IGNORE_LIST=$(read_ignore_list "${TEST_PROFILE_DIRECTORY}");
 
-	# IFS="\n"; is not supported by all platforms.
-	IFS="
-";
+	IFS=" " read -a PROFILE_OPTIONS <<< ${OPTIONS_PER_PROFILE[${PROFILE_INDEX}]};
 
-	if test -f "${TEST_SET_DIRECTORY}/files";
-	then
-		for INPUT_FILE in `cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?"`;
+	RESULT=${EXIT_SUCCESS};
+
+	for TEST_SET_INPUT_DIRECTORY in input/*;
+	do
+		if ! test -d "${TEST_SET_INPUT_DIRECTORY}";
+		then
+			continue;
+		fi
+		TEST_SET=`basename ${TEST_SET_INPUT_DIRECTORY}`;
+
+		if check_for_test_set_in_ignore_list "${TEST_SET}" "${IGNORE_LIST}";
+		then
+			continue;
+		fi
+		TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
+
+		RESULT=${EXIT_SUCCESS};
+
+		if test -f "${TEST_SET_DIRECTORY}/files";
+		then
+			IFS=$'\n' read -a INPUT_FILES <<< $(cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?");
+		else
+			IFS=$'\n' read -a INPUT_FILES <<< $(ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB});
+		fi
+		for INPUT_FILE in "${INPUT_FILES[@]}";
 		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "hmacsum" "with_callback" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
-			RESULT=$?;
+			TESTED_WITH_OPTIONS=0;
 
-			if test ${RESULT} -ne ${EXIT_SUCCESS};
+			for OPTION_SET in ${OPTION_SETS[@]};
+			do
+				TEST_DATA_OPTION_FILE=$(get_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+				if test -f ${TEST_DATA_OPTION_FILE};
+				then
+					TESTED_WITH_OPTIONS=1;
+
+					IFS=" " read -a OPTIONS <<< $(read_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+					run_test_on_input_file "${TEST_SET_DIRECTORY}" "hmacsum" "with_stdout_reference" "${OPTION_SET}" "${TEST_EXECUTABLE}" "${INPUT_FILE}" "${PROFILE_OPTIONS[@]}" "${OPTIONS[@]}";
+					RESULT=$?;
+
+					if test ${RESULT} -ne ${EXIT_SUCCESS};
+					then
+						break;
+					fi
+				fi
+			done
+
+			if test ${TESTED_WITH_OPTIONS} -eq 0;
 			then
-				break;
+				run_test_on_input_file "${TEST_SET_DIRECTORY}" "hmacsum" "with_stdout_reference" "" "${TEST_EXECUTABLE}" "${INPUT_FILE}" "${PROFILE_OPTIONS[@]}";
+				RESULT=$?;
 			fi
-		done
-	else
-		for INPUT_FILE in `ls -1 ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB}`;
-		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "hmacsum" "with_callback" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
-			RESULT=$?;
 
 			if test ${RESULT} -ne ${EXIT_SUCCESS};
 			then
 				break;
 			fi
 		done
-	fi
-	IFS=${OLDIFS};
 
-	if test ${RESULT} -ne ${EXIT_SUCCESS};
-	then
-		break;
-	fi
+		# Ignore failures due to corrupted data.
+		if test "${TEST_SET}" = "corrupted";
+		then
+			RESULT=${EXIT_SUCCESS};
+		fi
+		if test ${RESULT} -ne ${EXIT_SUCCESS};
+		then
+			break;
+		fi
+	done
 done
 
 exit ${RESULT};
diff --git a/tests/test_python_module.sh b/tests/test_python_module.sh
index e5ccf9a..7f271d6 100755
--- a/tests/test_python_module.sh
+++ b/tests/test_python_module.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # Tests Python module functions and types.
 #
-# Version: 20230410
+# Version: 20231005
 
 EXIT_SUCCESS=0;
 EXIT_FAILURE=1;
@@ -9,7 +9,7 @@ EXIT_IGNORE=77;
 
 TEST_FUNCTIONS="support";
 TEST_FUNCTIONS_WITH_INPUT="";
-OPTION_SETS="";
+OPTION_SETS=();
 
 TEST_TOOL_DIRECTORY=".";
 INPUT_GLOB="*";
@@ -68,37 +68,47 @@ test_python_function_with_input()
 
 		local TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
 
-		local OLDIFS=${IFS};
-
-		# IFS="\n"; is not supported by all platforms.
-		IFS="
-";
-
 		if test -f "${TEST_SET_DIRECTORY}/files";
 		then
-			for INPUT_FILE in `cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?"`;
+			IFS="" read -a INPUT_FILES <<< $(cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?");
+		else
+			IFS="" read -a INPUT_FILES <<< $(ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB});
+		fi
+		for INPUT_FILE in "${INPUT_FILES[@]}";
+		do
+			local TESTED_WITH_OPTIONS=0;
+
+			for OPTION_SET in ${OPTION_SETS[@]};
 			do
-				run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "${OPTION_SETS}" "${TEST_SCRIPT}" "${INPUT_FILE}";
-				RESULT=$?;
+				local TEST_DATA_OPTION_FILE=$(get_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
 
-				if test ${RESULT} -ne ${EXIT_SUCCESS};
+				if test -f ${TEST_DATA_OPTION_FILE};
 				then
-					break;
+					TESTED_WITH_OPTIONS=1;
+
+					IFS=" " read -a OPTIONS <<< $(read_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+					run_test_on_input_file "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "${OPTION_SET}" "${TEST_SCRIPT}" "${INPUT_FILE}" "${OPTIONS[@]}";
+					RESULT=$?;
+
+					if test ${RESULT} -ne ${EXIT_SUCCESS};
+					then
+						break;
+					fi
 				fi
 			done
-		else
-			for INPUT_FILE in `ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB}`;
-			do
-				run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "${OPTION_SETS}" "${TEST_SCRIPT}" "${INPUT_FILE}";
+
+			if test ${TESTED_WITH_OPTIONS} -eq 0;
+			then
+				run_test_on_input_file "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "default" "" "${TEST_SCRIPT}" "${INPUT_FILE}";
 				RESULT=$?;
+			fi
 
-				if test ${RESULT} -ne ${EXIT_SUCCESS};
-				then
-					break;
-				fi
-			done
-		fi
-		IFS=${OLDIFS};
+			if test ${RESULT} -ne ${EXIT_SUCCESS};
+			then
+				break;
+			fi
+		done
 
 		if test ${RESULT} -ne ${EXIT_SUCCESS};
 		then
diff --git a/tests/test_runner.sh b/tests/test_runner.sh
index 6313971..da773fa 100644
--- a/tests/test_runner.sh
+++ b/tests/test_runner.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # Bash functions to run an executable for testing.
 #
-# Version: 20230410
+# Version: 20231001
 #
 # When CHECK_WITH_ASAN is set to a non-empty value the test executable
 # is run with asan, otherwise it is run without.
@@ -406,9 +406,12 @@ read_test_data_option_file()
 		TEST_DATA_OPTION_FILE=$(get_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
 	fi
 
-	local OPTIONS=()
-	local OPTIONS_STRING=`cat "${TEST_DATA_OPTION_FILE}" | head -n 1 | sed 's/[\r\n]*$//'`;
+	local OPTIONS_STRING=`head -n 1 "${TEST_DATA_OPTION_FILE}" | sed 's/[\r\n]*$//'`;
 
+	if test "${OPTIONS_STRING}" = "# libyal test data options";
+	then
+		OPTIONS_STRING=`tail -n +2 "${TEST_DATA_OPTION_FILE}" | sed 's/^offset=/-o/;s/^password=/-p/;s/^recovery_password=/-r/;s/^startup_key=/-s/' | tr '\n' ' '`;
+	fi
 	echo "${OPTIONS_STRING}";
 }
 
@@ -1073,14 +1076,10 @@ run_test_on_input_file()
 	local ARGUMENTS=("$@");
 
 	local INPUT_NAME=`basename "${INPUT_FILE}"`;
-	local OPTIONS=();
 	local TEST_OUTPUT="${INPUT_NAME}";
 
 	if test -n "${OPTION_SET}";
 	then
-		OPTIONS_STRING=$(read_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
-		IFS=" " read -a OPTIONS <<< "${OPTIONS_STRING}";
-
 		TEST_OUTPUT="${INPUT_NAME}-${OPTION_SET}";
 	fi
 
@@ -1092,7 +1091,7 @@ run_test_on_input_file()
 
 	if test "${TEST_MODE}" = "with_callback";
 	then
-		test_callback "${TMPDIR}" "${TEST_SET_DIRECTORY}" "${TEST_OUTPUT}" "${TEST_EXECUTABLE}" "${TEST_INPUT}" ${ARGUMENTS[@]} "${OPTIONS[@]}";
+		test_callback "${TMPDIR}" "${TEST_SET_DIRECTORY}" "${TEST_OUTPUT}" "${TEST_EXECUTABLE}" "${TEST_INPUT}" ${ARGUMENTS[@]};
 		RESULT=$?;
 
 	elif test "${TEST_MODE}" = "with_stdout_reference";
@@ -1109,7 +1108,7 @@ run_test_on_input_file()
 		local INPUT_FILE_FULL_PATH=$( readlink_f "${INPUT_FILE}" );
 		local TEST_LOG="${TEST_OUTPUT}.log";
 
-		(cd ${TMPDIR} && run_test_with_input_and_arguments "${TEST_EXECUTABLE}" "${INPUT_FILE_FULL_PATH}" ${ARGUMENTS[@]} "${OPTIONS[@]}" > "${TEST_LOG}");
+		(cd ${TMPDIR} && run_test_with_input_and_arguments "${TEST_EXECUTABLE}" "${INPUT_FILE_FULL_PATH}" ${ARGUMENTS[@]} > "${TEST_LOG}");
 		RESULT=$?;
 
 		# Compare output if test ran successfully.
@@ -1135,7 +1134,7 @@ run_test_on_input_file()
 		fi
 
 	else
-		run_test_with_input_and_arguments "${TEST_EXECUTABLE}" "${INPUT_FILE}" ${ARGUMENTS[@]} "${OPTIONS[@]}";
+		run_test_with_input_and_arguments "${TEST_EXECUTABLE}" "${INPUT_FILE}" ${ARGUMENTS[@]};
 		RESULT=$?;
 	fi
 
@@ -1144,22 +1143,12 @@ run_test_on_input_file()
 	if test -n "${TEST_DESCRIPTION}";
 	then
 		ARGUMENTS=`echo "${ARGUMENTS[*]}" | tr '\n' ' ' | sed 's/[ ]\$//'`;
-		OPTIONS=`echo "${OPTIONS[*]}" | tr '\n' ' ' | sed 's/[ ]\$//'`;
 
-		if test -z "${ARGUMENTS}" && test -z "${OPTIONS}";
+		if test -z "${ARGUMENTS}";
 		then
 			echo -n "${TEST_DESCRIPTION} with input: ${INPUT_FILE}";
-
-		elif test -z "${ARGUMENTS}";
-		then
-			echo -n "${TEST_DESCRIPTION} with options: '${OPTIONS}' and input: ${INPUT_FILE}";
-
-		elif test -z "${OPTIONS}";
-		then
-			echo -n "${TEST_DESCRIPTION} with options: '${ARGUMENTS}' and input: ${INPUT_FILE}";
-
 		else
-			echo -n "${TEST_DESCRIPTION} with options: '${ARGUMENTS} ${OPTIONS}' and input: ${INPUT_FILE}";
+			echo -n "${TEST_DESCRIPTION} with options: '${ARGUMENTS}' and input: ${INPUT_FILE}";
 		fi
 
 		if test ${RESULT} -ne ${EXIT_SUCCESS};
@@ -1172,122 +1161,3 @@ run_test_on_input_file()
 	return ${RESULT};
 }
 
-# Runs the test with options on the input file.
-#
-# Note that this function is not intended to be directly invoked
-# from outside the test runner script.
-#
-# Arguments:
-#   a string containing the path of the test set directory
-#   a string containing the description of the test
-#   a string containing the test mode
-#   a string containing the name of the test data option sets
-#   a string containing the path of the test executable
-#   a string containing the path of the test input file
-#   an array containing the arguments for the test executable
-#
-# Returns:
-#   an integer containg the exit status of the test executable
-#
-run_test_on_input_file_with_options()
-{
-	local TEST_SET_DIRECTORY=$1;
-	local TEST_DESCRIPTION=$2;
-	local TEST_MODE=$3;
-	local OPTION_SETS=$4;
-	local TEST_EXECUTABLE=$5;
-	local INPUT_FILE=$6;
-	shift 6;
-	local ARGUMENTS=("$@");
-
-	local RESULT=${EXIT_SUCCESS};
-	local TESTED_WITH_OPTIONS=0;
-
-	for OPTION_SET in `echo ${OPTION_SETS} | tr ' ' '\n'`;
-	do
-		local TEST_DATA_OPTION_FILE=$(get_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
-
-		if ! test -f ${TEST_DATA_OPTION_FILE};
-		then
-			continue
-		fi
-
-		run_test_on_input_file "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "${TEST_MODE}" "${OPTION_SET}" "${TEST_EXECUTABLE}" "${INPUT_FILE}" ${ARGUMENTS[@]};
-		RESULT=$?;
-
-		if test ${RESULT} -ne ${EXIT_SUCCESS};
-		then
-			break;
-		fi
-		TESTED_WITH_OPTIONS=1;
-	done
-
-	if test ${RESULT} -eq ${EXIT_SUCCESS} && test ${TESTED_WITH_OPTIONS} -eq 0;
-	then
-		run_test_on_input_file "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "${TEST_MODE}" "" "${TEST_EXECUTABLE}" "${INPUT_FILE}" ${ARGUMENTS[@]};
-		RESULT=$?;
-	fi
-	return ${RESULT};
-}
-
-# Runs the test with options on the file entries in the test set directory.
-#
-# Note that this function is not intended to be directly invoked
-# from outside the test runner script.
-#
-# Arguments:
-#   a string containing the path of the test set directory
-#   a string containing the description of the test
-#   a string containing the test mode
-#   a string containing the name of the test data option sets
-#   a string containing the path of the test executable
-#   an array containing the arguments for the test executable
-#
-# Returns:
-#   an integer containg the exit status of the test executable
-#
-run_test_on_test_set_with_options()
-{
-	local TEST_SET_DIRECTORY=$1;
-	local TEST_DESCRIPTION=$2;
-	local TEST_MODE=$3;
-	local OPTION_SETS=$4;
-	local TEST_EXECUTABLE=$5;
-	shift 5;
-	local ARGUMENTS=("$@");
-
-	local RESULT=${EXIT_SUCCESS};
-
-	# IFS="\n"; is not supported by all platforms.
-	IFS="
-";
-
-	if test -f "${TEST_SET_DIRECTORY}/files";
-	then
-		for INPUT_FILE in `cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?"`;
-		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "${TEST_MODE}" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}" ${ARGUMENTS[@]};
-			RESULT=$?;
-
-			if test ${RESULT} -ne ${EXIT_SUCCESS};
-			then
-				break;
-			fi
-		done
-	else
-		for INPUT_FILE in `ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB}`;
-		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "${TEST_DESCRIPTION}" "${TEST_MODE}" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}" ${ARGUMENTS[@]};
-			RESULT=$?;
-
-			if test ${RESULT} -ne ${EXIT_SUCCESS};
-			then
-				break;
-			fi
-		done
-	fi
-	IFS=${OLDIFS};
-
-	return ${RESULT};
-}
-
diff --git a/tests/test_sha1sum.sh b/tests/test_sha1sum.sh
index 6342e10..434c81c 100755
--- a/tests/test_sha1sum.sh
+++ b/tests/test_sha1sum.sh
@@ -1,12 +1,14 @@
 #!/usr/bin/env bash
 # Sum tool testing script
 #
-# Version: 20230701
+# Version: 20231001
 
 EXIT_SUCCESS=0;
 EXIT_FAILURE=1;
 EXIT_IGNORE=77;
 
+PROFILES=("hmacsum");
+OPTIONS_PER_PROFILE=("")
 OPTION_SETS="";
 
 INPUT_GLOB="*";
@@ -115,61 +117,86 @@ then
 	return ${EXIT_IGNORE};
 fi
 
-TEST_PROFILE_DIRECTORY=$(get_test_profile_directory "input" "hmacsum");
+for PROFILE_INDEX in ${!PROFILES[*]};
+do
+	TEST_PROFILE=${PROFILES[${PROFILE_INDEX}]};
 
-IGNORE_LIST=$(read_ignore_list "${TEST_PROFILE_DIRECTORY}");
+	TEST_PROFILE_DIRECTORY=$(get_test_profile_directory "input" "${TEST_PROFILE}");
 
-RESULT=${EXIT_SUCCESS};
+	IGNORE_LIST=$(read_ignore_list "${TEST_PROFILE_DIRECTORY}");
 
-for TEST_SET_INPUT_DIRECTORY in input/*;
-do
-	if ! test -d "${TEST_SET_INPUT_DIRECTORY}";
-	then
-		continue;
-	fi
-	if check_for_directory_in_ignore_list "${TEST_SET_INPUT_DIRECTORY}" "${IGNORE_LIST}";
-	then
-		continue;
-	fi
+	IFS=" " read -a PROFILE_OPTIONS <<< ${OPTIONS_PER_PROFILE[${PROFILE_INDEX}]};
 
-	TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
+	RESULT=${EXIT_SUCCESS};
 
-	OLDIFS=${IFS};
+	for TEST_SET_INPUT_DIRECTORY in input/*;
+	do
+		if ! test -d "${TEST_SET_INPUT_DIRECTORY}";
+		then
+			continue;
+		fi
+		TEST_SET=`basename ${TEST_SET_INPUT_DIRECTORY}`;
 
-	# IFS="\n"; is not supported by all platforms.
-	IFS="
-";
+		if check_for_test_set_in_ignore_list "${TEST_SET}" "${IGNORE_LIST}";
+		then
+			continue;
+		fi
+		TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
 
-	if test -f "${TEST_SET_DIRECTORY}/files";
-	then
-		for INPUT_FILE in `cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?"`;
+		RESULT=${EXIT_SUCCESS};
+
+		if test -f "${TEST_SET_DIRECTORY}/files";
+		then
+			IFS=$'\n' read -a INPUT_FILES <<< $(cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?");
+		else
+			IFS=$'\n' read -a INPUT_FILES <<< $(ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB});
+		fi
+		for INPUT_FILE in "${INPUT_FILES[@]}";
 		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "hmacsum" "with_callback" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
-			RESULT=$?;
+			TESTED_WITH_OPTIONS=0;
 
-			if test ${RESULT} -ne ${EXIT_SUCCESS};
+			for OPTION_SET in ${OPTION_SETS[@]};
+			do
+				TEST_DATA_OPTION_FILE=$(get_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+				if test -f ${TEST_DATA_OPTION_FILE};
+				then
+					TESTED_WITH_OPTIONS=1;
+
+					IFS=" " read -a OPTIONS <<< $(read_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+					run_test_on_input_file "${TEST_SET_DIRECTORY}" "hmacsum" "with_stdout_reference" "${OPTION_SET}" "${TEST_EXECUTABLE}" "${INPUT_FILE}" "${PROFILE_OPTIONS[@]}" "${OPTIONS[@]}";
+					RESULT=$?;
+
+					if test ${RESULT} -ne ${EXIT_SUCCESS};
+					then
+						break;
+					fi
+				fi
+			done
+
+			if test ${TESTED_WITH_OPTIONS} -eq 0;
 			then
-				break;
+				run_test_on_input_file "${TEST_SET_DIRECTORY}" "hmacsum" "with_stdout_reference" "" "${TEST_EXECUTABLE}" "${INPUT_FILE}" "${PROFILE_OPTIONS[@]}";
+				RESULT=$?;
 			fi
-		done
-	else
-		for INPUT_FILE in `ls -1 ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB}`;
-		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "hmacsum" "with_callback" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
-			RESULT=$?;
 
 			if test ${RESULT} -ne ${EXIT_SUCCESS};
 			then
 				break;
 			fi
 		done
-	fi
-	IFS=${OLDIFS};
 
-	if test ${RESULT} -ne ${EXIT_SUCCESS};
-	then
-		break;
-	fi
+		# Ignore failures due to corrupted data.
+		if test "${TEST_SET}" = "corrupted";
+		then
+			RESULT=${EXIT_SUCCESS};
+		fi
+		if test ${RESULT} -ne ${EXIT_SUCCESS};
+		then
+			break;
+		fi
+	done
 done
 
 exit ${RESULT};
diff --git a/tests/test_sha2sum.sh b/tests/test_sha2sum.sh
index 1de04a2..aa2c0ef 100755
--- a/tests/test_sha2sum.sh
+++ b/tests/test_sha2sum.sh
@@ -1,12 +1,14 @@
 #!/usr/bin/env bash
 # Sum tool testing script
 #
-# Version: 20230701
+# Version: 20231001
 
 EXIT_SUCCESS=0;
 EXIT_FAILURE=1;
 EXIT_IGNORE=77;
 
+PROFILES=("hmacsum");
+OPTIONS_PER_PROFILE=("")
 OPTION_SETS="";
 
 INPUT_GLOB="*";
@@ -149,61 +151,86 @@ then
 	return ${EXIT_IGNORE};
 fi
 
-TEST_PROFILE_DIRECTORY=$(get_test_profile_directory "input" "hmacsum");
+for PROFILE_INDEX in ${!PROFILES[*]};
+do
+	TEST_PROFILE=${PROFILES[${PROFILE_INDEX}]};
 
-IGNORE_LIST=$(read_ignore_list "${TEST_PROFILE_DIRECTORY}");
+	TEST_PROFILE_DIRECTORY=$(get_test_profile_directory "input" "${TEST_PROFILE}");
 
-RESULT=${EXIT_SUCCESS};
+	IGNORE_LIST=$(read_ignore_list "${TEST_PROFILE_DIRECTORY}");
 
-for TEST_SET_INPUT_DIRECTORY in input/*;
-do
-	if ! test -d "${TEST_SET_INPUT_DIRECTORY}";
-	then
-		continue;
-	fi
-	if check_for_directory_in_ignore_list "${TEST_SET_INPUT_DIRECTORY}" "${IGNORE_LIST}";
-	then
-		continue;
-	fi
+	IFS=" " read -a PROFILE_OPTIONS <<< ${OPTIONS_PER_PROFILE[${PROFILE_INDEX}]};
 
-	TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
+	RESULT=${EXIT_SUCCESS};
 
-	OLDIFS=${IFS};
+	for TEST_SET_INPUT_DIRECTORY in input/*;
+	do
+		if ! test -d "${TEST_SET_INPUT_DIRECTORY}";
+		then
+			continue;
+		fi
+		TEST_SET=`basename ${TEST_SET_INPUT_DIRECTORY}`;
 
-	# IFS="\n"; is not supported by all platforms.
-	IFS="
-";
+		if check_for_test_set_in_ignore_list "${TEST_SET}" "${IGNORE_LIST}";
+		then
+			continue;
+		fi
+		TEST_SET_DIRECTORY=$(get_test_set_directory "${TEST_PROFILE_DIRECTORY}" "${TEST_SET_INPUT_DIRECTORY}");
 
-	if test -f "${TEST_SET_DIRECTORY}/files";
-	then
-		for INPUT_FILE in `cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?"`;
+		RESULT=${EXIT_SUCCESS};
+
+		if test -f "${TEST_SET_DIRECTORY}/files";
+		then
+			IFS=$'\n' read -a INPUT_FILES <<< $(cat ${TEST_SET_DIRECTORY}/files | sed "s?^?${TEST_SET_INPUT_DIRECTORY}/?");
+		else
+			IFS=$'\n' read -a INPUT_FILES <<< $(ls -1d ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB});
+		fi
+		for INPUT_FILE in "${INPUT_FILES[@]}";
 		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "hmacsum" "with_callback" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
-			RESULT=$?;
+			TESTED_WITH_OPTIONS=0;
 
-			if test ${RESULT} -ne ${EXIT_SUCCESS};
+			for OPTION_SET in ${OPTION_SETS[@]};
+			do
+				TEST_DATA_OPTION_FILE=$(get_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+				if test -f ${TEST_DATA_OPTION_FILE};
+				then
+					TESTED_WITH_OPTIONS=1;
+
+					IFS=" " read -a OPTIONS <<< $(read_test_data_option_file "${TEST_SET_DIRECTORY}" "${INPUT_FILE}" "${OPTION_SET}");
+
+					run_test_on_input_file "${TEST_SET_DIRECTORY}" "hmacsum" "with_stdout_reference" "${OPTION_SET}" "${TEST_EXECUTABLE}" "${INPUT_FILE}" "${PROFILE_OPTIONS[@]}" "${OPTIONS[@]}";
+					RESULT=$?;
+
+					if test ${RESULT} -ne ${EXIT_SUCCESS};
+					then
+						break;
+					fi
+				fi
+			done
+
+			if test ${TESTED_WITH_OPTIONS} -eq 0;
 			then
-				break;
+				run_test_on_input_file "${TEST_SET_DIRECTORY}" "hmacsum" "with_stdout_reference" "" "${TEST_EXECUTABLE}" "${INPUT_FILE}" "${PROFILE_OPTIONS[@]}";
+				RESULT=$?;
 			fi
-		done
-	else
-		for INPUT_FILE in `ls -1 ${TEST_SET_INPUT_DIRECTORY}/${INPUT_GLOB}`;
-		do
-			run_test_on_input_file_with_options "${TEST_SET_DIRECTORY}" "hmacsum" "with_callback" "${OPTION_SETS}" "${TEST_EXECUTABLE}" "${INPUT_FILE}";
-			RESULT=$?;
 
 			if test ${RESULT} -ne ${EXIT_SUCCESS};
 			then
 				break;
 			fi
 		done
-	fi
-	IFS=${OLDIFS};
 
-	if test ${RESULT} -ne ${EXIT_SUCCESS};
-	then
-		break;
-	fi
+		# Ignore failures due to corrupted data.
+		if test "${TEST_SET}" = "corrupted";
+		then
+			RESULT=${EXIT_SUCCESS};
+		fi
+		if test ${RESULT} -ne ${EXIT_SUCCESS};
+		then
+			break;
+		fi
+	done
 done
 
 exit ${RESULT};
diff --git a/tox.ini b/tox.ini
index df530a0..0eb54f9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,15 +1,20 @@
 [tox]
-envlist = py3{7,8,9,10,11}
+envlist = py3{7,8,9,10,11,12}
 
 [testenv]
 usedevelop = True
-allowlist_externals = ./setup.py
 pip_pre = True
 passenv =
-    CFLAGS
-    CPPFLAGS
-    INCLUDE
-    LDFLAGS
-    LIB
+  CFLAGS
+  CPPFLAGS
+  INCLUDE
+  LDFLAGS
+  LIB
+deps =
+  build
+  setuptools
+  wheel
 commands =
-    ./setup.py bdist_wheel
+  python -m build --no-isolation --outdir=dist --wheel
+  python -m pip install --no-index --find-links=dist libhmac-python
+  python tests/runtests.py