diff --git a/.gitea/ISSUE_TEMPLATE/ISSUE_TEMPLATE.yaml b/.gitea/ISSUE_TEMPLATE/ISSUE_TEMPLATE.yaml
index f38c0ba..aa26208 100644
--- a/.gitea/ISSUE_TEMPLATE/ISSUE_TEMPLATE.yaml
+++ b/.gitea/ISSUE_TEMPLATE/ISSUE_TEMPLATE.yaml
@@ -27,7 +27,7 @@ body:
     attributes:
       label: "Version"
       description: "Which version are you running? Use `./ciss_live_builder.sh -v`."
-      placeholder: "e.g., Master V8.03.384.2025.06.03"
+      placeholder: "e.g., Master V8.03.400.2025.06.05"
     validations:
       required: true
 
diff --git a/.gitea/TODO/render-md-to-html.yaml b/.gitea/TODO/render-md-to-html.yaml
index 0a55846..fba6e69 100644
--- a/.gitea/TODO/render-md-to-html.yaml
+++ b/.gitea/TODO/render-md-to-html.yaml
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 name: Render README.md to README.html.
 
diff --git a/.gitea/trigger/t_generate_dns.yaml b/.gitea/trigger/t_generate_dns.yaml
index 001d661..28f5f21 100644
--- a/.gitea/trigger/t_generate_dns.yaml
+++ b/.gitea/trigger/t_generate_dns.yaml
@@ -11,5 +11,5 @@
 
 build:
   counter: 1023
-  version: V8.03.384.2025.06.03
+  version: V8.03.400.2025.06.05
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=yaml
diff --git a/.gitea/workflows/generate_PRIVATE_iso_flavour_0.yaml b/.gitea/workflows/generate_PRIVATE_iso_flavour_0.yaml
index cab5b7f..25a84fb 100644
--- a/.gitea/workflows/generate_PRIVATE_iso_flavour_0.yaml
+++ b/.gitea/workflows/generate_PRIVATE_iso_flavour_0.yaml
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 name: Generating a Private Live ISO FLV 0.
 
@@ -30,7 +30,7 @@ jobs:
 
     ### Run all steps inside Debian Bookworm
     container:
-      image: debian:trixie
+      image: debian:bookworm
 
     steps:
       - name: 🛠️ Basic Image Setup and enable Bookworm Backports.
@@ -62,6 +62,108 @@ jobs:
             wget \
             whois
 
+      - name: 🛠️ Build GnuPG from the sources, as the Bookworm GPG does not understand key format 5.
+        shell: bash
+        run: |
+          urls=(
+            "https://gnupg.org/ftp/gcrypt/npth/npth-1.8.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-1.55.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libgcrypt/libgcrypt-1.11.1.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libksba/libksba-1.6.7.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libassuan/libassuan-3.0.2.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.4.8.tar.bz2"
+          )
+
+          for url in "${urls[@]}"; do
+            archive_name="${url##*/}"
+            pkg_name="${archive_name%.tar.bz2}"
+            echo "🔄 Processing ${pkg_name}"
+            if [[ ! -f "${archive_name}" ]]; then
+              echo "📥 Downloading: '${archive_name}'."
+              if wget "${url}" -O "${archive_name}" > /dev/null 2>&1; then
+                echo "✅ Download successful: '${archive_name}'."
+              else
+                echo "❌ Download NOT successful: '${archive_name}'."
+                exit 1
+              fi
+            else
+              echo "ℹ️ Skipping download, package already exists: '${archive_name}'."
+            fi
+
+            if [[ ! -d "${pkg_name}" ]]; then
+              echo "📂 Extracting: '${archive_name}'."
+              if tar -xjf "${archive_name}"; then
+                echo "✅ Extraction successful: '${archive_name}'."
+              else
+                echo "❌ Extraction not successful: '${archive_name}'."
+                exit 1
+              fi
+            else
+              echo "ℹ️ Skipping directory, already exists: '${pkg_name}'."
+            fi
+
+            echo "🏗️ Build and install the package: '${pkg_name}'."
+            cd "${pkg_name}" || { echo "❌ Could not change to '${pkg_name}'."; exit 1; }
+            mkdir -p build
+            cd build || { echo "❌ Could not change to '/build'."; exit 1; }
+
+            sudo ../configure > /dev/null 2>&1  || { echo "❌ '../configure' NOT successful for '${pkg_name}'."; exit 1; }
+            make > /dev/null 2>&1 || { echo "❌ 'make' NOT successful for '${pkg_name}'."; exit 1; }
+            sudo make install > /dev/null 2>&1 || { echo "❌ 'make install' NOT successful for '${pkg_name}'."; exit 1; }
+
+            cd ../.. || { echo "❌ Could not change to '../..'."; exit 1; }
+
+            rm -f "${archive_name}"; \
+            echo "✅ Removed archive: '${pkg_name}'."
+            rm -fr "${pkg_name}"; \
+            echo "✅ Removed build artifacts: '${pkg_name}'."
+            echo "✅ Successful build and installation of '${pkg_name}'."
+            echo "-------------------------------------------------------------------------------------"
+
+          done
+
+          echo "✅ All packages were built and installed successfully."
+
+          mv_bin=(
+            "/usr/bin/gpg"
+            "/usr/bin/gpg-agent"
+            "/usr/bin/gpgconf"
+            "/usr/bin/gpg-connect-agent"
+            "/usr/bin/gpg-wks-client"
+            "/usr/bin/gpg-preset-passphrase"
+          )
+
+          for bin in "${mv_bin[@]}"; do
+            name="${bin##*/}"
+            if [[ -f "${bin}" && -f "/usr/local/bin/${name}" ]]; then
+              if mv "${bin}" "${bin}.debian-backup"; then
+                echo "✅ Moved successfully: '${bin}'."
+              else
+                echo "❌ Moved NOT successfully: '${bin}'."
+              fi
+            else
+              echo "ℹ️ Does not exist as build binary: '${bin}'."
+            fi
+          done
+
+          for bin in "${mv_bin[@]}"; do
+            name="${bin##*/}"
+            if [[ -f "/usr/local/bin/${name}" ]]; then
+              if update-alternatives --install "${bin}" "${name}" "/usr/local/bin/${name}" 100; then
+                echo "✅ 'update-alternatives' successfully: '${bin}'."
+              else
+                echo "❌ 'update-alternatives' NOT successfully: '${bin}'."
+              fi
+            else
+              echo "ℹ️ Does not exist: '/usr/local/bin/${name}'."
+            fi
+          done
+
+          sudo ldconfig
+
+          gpgconf --kill all
+          /usr/local/bin/gpg-agent --daemon
+
       - name: ⚙️ Check GnuPG Version.
         shell: bash
         run: |
diff --git a/.gitea/workflows/generate_PRIVATE_iso_flavour_1.yaml b/.gitea/workflows/generate_PRIVATE_iso_flavour_1.yaml
index afa8683..670b157 100644
--- a/.gitea/workflows/generate_PRIVATE_iso_flavour_1.yaml
+++ b/.gitea/workflows/generate_PRIVATE_iso_flavour_1.yaml
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 name: Generating a Private Live ISO FLV 1.
 
@@ -30,7 +30,7 @@ jobs:
 
     ### Run all steps inside Debian Bookworm
     container:
-      image: debian:trixie
+      image: debian:bookworm
 
     steps:
       - name: 🛠️ Basic Image Setup and enable Bookworm Backports.
@@ -62,6 +62,108 @@ jobs:
             wget \
             whois
 
+      - name: 🛠️ Build GnuPG from the sources, as the Bookworm GPG does not understand key format 5.
+        shell: bash
+        run: |
+          urls=(
+            "https://gnupg.org/ftp/gcrypt/npth/npth-1.8.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-1.55.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libgcrypt/libgcrypt-1.11.1.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libksba/libksba-1.6.7.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libassuan/libassuan-3.0.2.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.4.8.tar.bz2"
+          )
+
+          for url in "${urls[@]}"; do
+            archive_name="${url##*/}"
+            pkg_name="${archive_name%.tar.bz2}"
+            echo "🔄 Processing ${pkg_name}"
+            if [[ ! -f "${archive_name}" ]]; then
+              echo "📥 Downloading: '${archive_name}'."
+              if wget "${url}" -O "${archive_name}" > /dev/null 2>&1; then
+                echo "✅ Download successful: '${archive_name}'."
+              else
+                echo "❌ Download NOT successful: '${archive_name}'."
+                exit 1
+              fi
+            else
+              echo "ℹ️ Skipping download, package already exists: '${archive_name}'."
+            fi
+
+            if [[ ! -d "${pkg_name}" ]]; then
+              echo "📂 Extracting: '${archive_name}'."
+              if tar -xjf "${archive_name}"; then
+                echo "✅ Extraction successful: '${archive_name}'."
+              else
+                echo "❌ Extraction not successful: '${archive_name}'."
+                exit 1
+              fi
+            else
+              echo "ℹ️ Skipping directory, already exists: '${pkg_name}'."
+            fi
+
+            echo "🏗️ Build and install the package: '${pkg_name}'."
+            cd "${pkg_name}" || { echo "❌ Could not change to '${pkg_name}'."; exit 1; }
+            mkdir -p build
+            cd build || { echo "❌ Could not change to '/build'."; exit 1; }
+
+            sudo ../configure > /dev/null 2>&1  || { echo "❌ '../configure' NOT successful for '${pkg_name}'."; exit 1; }
+            make > /dev/null 2>&1 || { echo "❌ 'make' NOT successful for '${pkg_name}'."; exit 1; }
+            sudo make install > /dev/null 2>&1 || { echo "❌ 'make install' NOT successful for '${pkg_name}'."; exit 1; }
+
+            cd ../.. || { echo "❌ Could not change to '../..'."; exit 1; }
+
+            rm -f "${archive_name}"; \
+            echo "✅ Removed archive: '${pkg_name}'."
+            rm -fr "${pkg_name}"; \
+            echo "✅ Removed build artifacts: '${pkg_name}'."
+            echo "✅ Successful build and installation of '${pkg_name}'."
+            echo "-------------------------------------------------------------------------------------"
+
+          done
+
+          echo "✅ All packages were built and installed successfully."
+
+          mv_bin=(
+            "/usr/bin/gpg"
+            "/usr/bin/gpg-agent"
+            "/usr/bin/gpgconf"
+            "/usr/bin/gpg-connect-agent"
+            "/usr/bin/gpg-wks-client"
+            "/usr/bin/gpg-preset-passphrase"
+          )
+
+          for bin in "${mv_bin[@]}"; do
+            name="${bin##*/}"
+            if [[ -f "${bin}" && -f "/usr/local/bin/${name}" ]]; then
+              if mv "${bin}" "${bin}.debian-backup"; then
+                echo "✅ Moved successfully: '${bin}'."
+              else
+                echo "❌ Moved NOT successfully: '${bin}'."
+              fi
+            else
+              echo "ℹ️ Does not exist as build binary: '${bin}'."
+            fi
+          done
+
+          for bin in "${mv_bin[@]}"; do
+            name="${bin##*/}"
+            if [[ -f "/usr/local/bin/${name}" ]]; then
+              if update-alternatives --install "${bin}" "${name}" "/usr/local/bin/${name}" 100; then
+                echo "✅ 'update-alternatives' successfully: '${bin}'."
+              else
+                echo "❌ 'update-alternatives' NOT successfully: '${bin}'."
+              fi
+            else
+              echo "ℹ️ Does not exist: '/usr/local/bin/${name}'."
+            fi
+          done
+
+          sudo ldconfig
+
+          gpgconf --kill all
+          /usr/local/bin/gpg-agent --daemon
+
       - name: ⚙️ Check GnuPG Version.
         shell: bash
         run: |
diff --git a/.gitea/workflows/generate_PUBLIC_iso.yaml b/.gitea/workflows/generate_PUBLIC_iso.yaml
index 55604dd..eac62cd 100644
--- a/.gitea/workflows/generate_PUBLIC_iso.yaml
+++ b/.gitea/workflows/generate_PUBLIC_iso.yaml
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 name: Generating a PUBLIC Live ISO.
 
@@ -30,7 +30,7 @@ jobs:
 
     ### Run all steps inside Debian Bookworm
     container:
-      image: debian:trixie
+      image: debian:bookworm
 
     steps:
       - name: 🛠️ Basic Image Setup and enable Bookworm Backports.
@@ -62,6 +62,108 @@ jobs:
             wget \
             whois
 
+      - name: 🛠️ Build GnuPG from the sources, as the Bookworm GPG does not understand key format 5.
+        shell: bash
+        run: |
+          urls=(
+            "https://gnupg.org/ftp/gcrypt/npth/npth-1.8.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libgpg-error/libgpg-error-1.55.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libgcrypt/libgcrypt-1.11.1.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libksba/libksba-1.6.7.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/libassuan/libassuan-3.0.2.tar.bz2"
+            "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.4.8.tar.bz2"
+          )
+
+          for url in "${urls[@]}"; do
+            archive_name="${url##*/}"
+            pkg_name="${archive_name%.tar.bz2}"
+            echo "🔄 Processing ${pkg_name}"
+            if [[ ! -f "${archive_name}" ]]; then
+              echo "📥 Downloading: '${archive_name}'."
+              if wget "${url}" -O "${archive_name}" > /dev/null 2>&1; then
+                echo "✅ Download successful: '${archive_name}'."
+              else
+                echo "❌ Download NOT successful: '${archive_name}'."
+                exit 1
+              fi
+            else
+              echo "ℹ️ Skipping download, package already exists: '${archive_name}'."
+            fi
+
+            if [[ ! -d "${pkg_name}" ]]; then
+              echo "📂 Extracting: '${archive_name}'."
+              if tar -xjf "${archive_name}"; then
+                echo "✅ Extraction successful: '${archive_name}'."
+              else
+                echo "❌ Extraction not successful: '${archive_name}'."
+                exit 1
+              fi
+            else
+              echo "ℹ️ Skipping directory, already exists: '${pkg_name}'."
+            fi
+
+            echo "🏗️ Build and install the package: '${pkg_name}'."
+            cd "${pkg_name}" || { echo "❌ Could not change to '${pkg_name}'."; exit 1; }
+            mkdir -p build
+            cd build || { echo "❌ Could not change to '/build'."; exit 1; }
+
+            sudo ../configure > /dev/null 2>&1  || { echo "❌ '../configure' NOT successful for '${pkg_name}'."; exit 1; }
+            make > /dev/null 2>&1 || { echo "❌ 'make' NOT successful for '${pkg_name}'."; exit 1; }
+            sudo make install > /dev/null 2>&1 || { echo "❌ 'make install' NOT successful for '${pkg_name}'."; exit 1; }
+
+            cd ../.. || { echo "❌ Could not change to '../..'."; exit 1; }
+
+            rm -f "${archive_name}"; \
+            echo "✅ Removed archive: '${pkg_name}'."
+            rm -fr "${pkg_name}"; \
+            echo "✅ Removed build artifacts: '${pkg_name}'."
+            echo "✅ Successful build and installation of '${pkg_name}'."
+            echo "-------------------------------------------------------------------------------------"
+
+          done
+
+          echo "✅ All packages were built and installed successfully."
+
+          mv_bin=(
+            "/usr/bin/gpg"
+            "/usr/bin/gpg-agent"
+            "/usr/bin/gpgconf"
+            "/usr/bin/gpg-connect-agent"
+            "/usr/bin/gpg-wks-client"
+            "/usr/bin/gpg-preset-passphrase"
+          )
+
+          for bin in "${mv_bin[@]}"; do
+            name="${bin##*/}"
+            if [[ -f "${bin}" && -f "/usr/local/bin/${name}" ]]; then
+              if mv "${bin}" "${bin}.debian-backup"; then
+                echo "✅ Moved successfully: '${bin}'."
+              else
+                echo "❌ Moved NOT successfully: '${bin}'."
+              fi
+            else
+              echo "ℹ️ Does not exist as build binary: '${bin}'."
+            fi
+          done
+
+          for bin in "${mv_bin[@]}"; do
+            name="${bin##*/}"
+            if [[ -f "/usr/local/bin/${name}" ]]; then
+              if update-alternatives --install "${bin}" "${name}" "/usr/local/bin/${name}" 100; then
+                echo "✅ 'update-alternatives' successfully: '${bin}'."
+              else
+                echo "❌ 'update-alternatives' NOT successfully: '${bin}'."
+              fi
+            else
+              echo "ℹ️ Does not exist: '/usr/local/bin/${name}'."
+            fi
+          done
+
+          sudo ldconfig
+
+          gpgconf --kill all
+          /usr/local/bin/gpg-agent --daemon
+
       - name: ⚙️ Check GnuPG Version.
         shell: bash
         run: |
diff --git a/.gitea/workflows/render-dnssec-status.yaml b/.gitea/workflows/render-dnssec-status.yaml
index a3b8c5a..a8267ad 100644
--- a/.gitea/workflows/render-dnssec-status.yaml
+++ b/.gitea/workflows/render-dnssec-status.yaml
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 name: Retrieve DNSSEC status of coresecret.dev.
 
diff --git a/.gitea/workflows/render-dot-to-png.yaml b/.gitea/workflows/render-dot-to-png.yaml
index d3e681c..3b66604 100644
--- a/.gitea/workflows/render-dot-to-png.yaml
+++ b/.gitea/workflows/render-dot-to-png.yaml
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 name: Render Graphviz Diagrams.
 
diff --git a/.version.properties b/.version.properties
index 07c51f4..24c6024 100644
--- a/.version.properties
+++ b/.version.properties
@@ -15,5 +15,5 @@ properties_SPDX-License-Identifier="EUPL-1.2 OR LicenseRef-CCLA-1.0"
 properties_SPDX-LicenseComment="This file is part of the CISS.debian.installer.secure framework."
 properties_SPDX-PackageName="CISS.debian.live.builder"
 properties_SPDX-Security-Contact="security@coresecret.eu"
-properties_version="V8.03.384.2025.06.03"
+properties_version="V8.03.400.2025.06.05"
 # vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
\ No newline at end of file
diff --git a/CISS.debian.live.builder.spdx b/CISS.debian.live.builder.spdx
index 5dddb0e..9f2c3f1 100644
--- a/CISS.debian.live.builder.spdx
+++ b/CISS.debian.live.builder.spdx
@@ -6,7 +6,7 @@ Creator: Person: Marc S. Weidner (Centurion Intelligence Consulting Agency)
 Created: 2025-05-07T12:00:00Z
 Package: CISS.debian.live.builder
 PackageName: CISS.debian.live.builder
-PackageVersion: Master V8.03.384.2025.06.03
+PackageVersion: Master V8.03.400.2025.06.05
 PackageSupplier: Organization: Centurion Intelligence Consulting Agency
 PackageDownloadLocation: https://git.coresecret.dev/msw/CISS.debian.live.builder
 PackageHomePage: https://git.coresecret.dev/msw/CISS.debian.live.builder
diff --git a/README.md b/README.md
index 62b851d..4ba02d4 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 gitea: none
 include_toc: true
 ---
-[![Static Badge](https://badges.coresecret.dev/badge/Release-V8.03.384.2025.06.03-white?style=plastic&logo=linux&logoColor=white&logoSize=auto&label=Release&color=%23FCC624)](https://git.coresecret.dev/msw/CISS.debian.live.builder)
+[![Static Badge](https://badges.coresecret.dev/badge/Release-V8.03.400.2025.06.05-white?style=plastic&logo=linux&logoColor=white&logoSize=auto&label=Release&color=%23FCC624)](https://git.coresecret.dev/msw/CISS.debian.live.builder)
  
 [![Static Badge](https://badges.coresecret.dev/badge/Licence-EUPL1.2-white?style=plastic&logo=europeanunion&logoColor=white&logoSize=auto&label=Licence&color=%23003399)](https://eupl.eu/1.2/en/)  
 [![Static Badge](https://badges.coresecret.dev/badge/opensourceinitiative-Compliant-white?style=plastic&logo=opensourceinitiative&logoColor=white&logoSize=auto&label=OSI&color=%233DA639)](https://opensource.org/license/eupl-1-2)  
@@ -26,7 +26,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 This shell wrapper automates the creation of a Debian Bookworm live ISO hardened according to the latest best practices in server
 and service security. It integrates into your build pipeline to deliver an isolated, robust environment suitable for
diff --git a/ciss_live_builder.sh b/ciss_live_builder.sh
index 5bc27da..38797de 100644
--- a/ciss_live_builder.sh
+++ b/ciss_live_builder.sh
@@ -40,7 +40,7 @@
 
 declare -g VAR_HANDLER_AUTOBUILD="false"
 declare -gr VAR_CONTACT="security@coresecret.eu"
-declare -gr VAR_VERSION="Master V8.03.384.2025.06.03"
+declare -gr VAR_VERSION="Master V8.03.400.2025.06.05"
 
 ### VERY EARLY CHECK FOR AUTO-BUILD, CONTACT, USAGE, AND VERSION STRING
 declare arg
diff --git a/config/hooks/live/9994_password_policy.chroot b/config/hooks/live/9994_password_policy.chroot
index 9b8fe3c..b6ecf3c 100644
--- a/config/hooks/live/9994_password_policy.chroot
+++ b/config/hooks/live/9994_password_policy.chroot
@@ -83,12 +83,12 @@ minlen = 20
 
 ### The maximum number of allowed consecutive same characters in the new password.
 ### The check is disabled if the value is 0.
-maxrepeat = 2
+maxrepeat = 3
 
 ### The maximum number of allowed consecutive characters of the same class in the
 ### new password.
 ### The check is disabled if the value is 0.
-maxclassrepeat = 4
+maxclassrepeat = 0
 
 ### Whether to check for the words from the passwd entry GECOS string of the user.
 ### The check is enabled if the value is not 0.
diff --git a/config/includes.chroot/etc/ssh/sshd_config b/config/includes.chroot/etc/ssh/sshd_config
index add85f9..0f8947b 100644
--- a/config/includes.chroot/etc/ssh/sshd_config
+++ b/config/includes.chroot/etc/ssh/sshd_config
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 ### https://www.ssh-audit.com/
 ### ssh -Q cipher | cipher-auth | compression | kex | kex-gss | key | key-cert | key-plain | key-sig | mac | protocol-version | sig
diff --git a/config/includes.chroot/etc/sysctl.d/99_local.hardened b/config/includes.chroot/etc/sysctl.d/99_local.hardened
index a5c4658..9192e7a 100644
--- a/config/includes.chroot/etc/sysctl.d/99_local.hardened
+++ b/config/includes.chroot/etc/sysctl.d/99_local.hardened
@@ -9,7 +9,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-### Version Master V8.03.384.2025.06.03
+### Version Master V8.03.400.2025.06.05
 
 ### https://docs.kernel.org/
 ### https://github.com/a13xp0p0v/kernel-hardening-checker/
diff --git a/config/includes.chroot/preseed/.iso/preseed_hash_generator.sh b/config/includes.chroot/preseed/.iso/preseed_hash_generator.sh
index a3dd9b9..0fad2da 100644
--- a/config/includes.chroot/preseed/.iso/preseed_hash_generator.sh
+++ b/config/includes.chroot/preseed/.iso/preseed_hash_generator.sh
@@ -10,7 +10,7 @@
 # SPDX-PackageName: CISS.debian.live.builder
 # SPDX-Security-Contact: security@coresecret.eu
 
-declare -gr VERSION="Master V8.03.384.2025.06.03"
+declare -gr VERSION="Master V8.03.400.2025.06.05"
 
 ### VERY EARLY CHECK FOR DEBUGGING
 if [[ $* == *" --debug "* ]]; then
diff --git a/config/includes.chroot/preseed/preseed.cfg b/config/includes.chroot/preseed/preseed.cfg
index e14fefa..ea588af 100644
--- a/config/includes.chroot/preseed/preseed.cfg
+++ b/config/includes.chroot/preseed/preseed.cfg
@@ -112,4 +112,4 @@ d-i preseed/late_command string sh /preseed/.ash/3_di_preseed_late_command.sh
 
 # Please consider donating to my work at: https://coresecret.eu/spenden/
 ###########################################################################################
-# Written by: ./preseed_hash_generator.sh Version: Master V8.03.384.2025.06.03 at: 10:18:37.9542
+# Written by: ./preseed_hash_generator.sh Version: Master V8.03.400.2025.06.05 at: 10:18:37.9542
diff --git a/docs/AUDIT_DNSSEC.md b/docs/AUDIT_DNSSEC.md
index c04ca2b..e25f8f1 100644
--- a/docs/AUDIT_DNSSEC.md
+++ b/docs/AUDIT_DNSSEC.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. DNSSEC Status
 
diff --git a/docs/AUDIT_HAVEGED.md b/docs/AUDIT_HAVEGED.md
index 4ce6343..b049363 100644
--- a/docs/AUDIT_HAVEGED.md
+++ b/docs/AUDIT_HAVEGED.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Haveged Audit on Netcup RS 2000 G11
 
diff --git a/docs/AUDIT_LYNIS.md b/docs/AUDIT_LYNIS.md
index 2433c36..97eb350 100644
--- a/docs/AUDIT_LYNIS.md
+++ b/docs/AUDIT_LYNIS.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Lynis Audit:
 
diff --git a/docs/AUDIT_SSH.md b/docs/AUDIT_SSH.md
index f501599..714405d 100644
--- a/docs/AUDIT_SSH.md
+++ b/docs/AUDIT_SSH.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. SSH Audit by ssh-audit.com
 
diff --git a/docs/AUDIT_TLS.md b/docs/AUDIT_TLS.md
index 86e187e..92544e6 100644
--- a/docs/AUDIT_TLS.md
+++ b/docs/AUDIT_TLS.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. TLS Audit:
 
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index ef9a2f0..91b97dc 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -8,10 +8,15 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Changelog
 
+## V8.03.400.2025.06.05
+
+* The workflow image was changed to ``debian:bookworm``.
+* Added a LIVE ISO workflow routine to build GnuPG from sources, since Bookworm GPG does not recognize key format 5.
+
 ---
 **[no tracking | no logging | no advertising | no profiling | no bullshit](https://coresecret.eu/)**
 <!-- vim: set number et ts=2 sw=2 sts=2 ai tw=128 ft=markdown -->
diff --git a/docs/CNET.md b/docs/CNET.md
index 6d390c4..d828f18 100644
--- a/docs/CNET.md
+++ b/docs/CNET.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Centurion Net - Developer Branch Overview
 
diff --git a/docs/CODING_CONVENTION.md b/docs/CODING_CONVENTION.md
index 573872d..c9edf35 100644
--- a/docs/CODING_CONVENTION.md
+++ b/docs/CODING_CONVENTION.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Coding Style
 
diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index 3b10c77..3e1f189 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Contributing / participating
 
diff --git a/docs/CREDITS.md b/docs/CREDITS.md
index 684a71f..a05be69 100644
--- a/docs/CREDITS.md
+++ b/docs/CREDITS.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Credits
 
diff --git a/docs/DL_PUB_ISO.md b/docs/DL_PUB_ISO.md
index 19be779..0b6161b 100644
--- a/docs/DL_PUB_ISO.md
+++ b/docs/DL_PUB_ISO.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Download the latest PUBLIC CISS.debian.live.ISO
 
diff --git a/docs/DOCUMENTATION.md b/docs/DOCUMENTATION.md
index 11017b1..5609490 100644
--- a/docs/DOCUMENTATION.md
+++ b/docs/DOCUMENTATION.md
@@ -8,12 +8,12 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Usage
 ````text
 CISS.debian.live.builder
-Master V8.03.384.2025.06.03
+Master V8.03.400.2025.06.05
 
 (c) Marc S. Weidner, 2018 - 2025
 (p) Centurion Press, 2024 - 2025
diff --git a/docs/REFERENCES.md b/docs/REFERENCES.md
index 176d7c1..2e0e03e 100644
--- a/docs/REFERENCES.md
+++ b/docs/REFERENCES.md
@@ -8,7 +8,7 @@ include_toc: true
 **Centurion Intelligence Consulting Agency Information Security Standard**<br>
 *Debian Live Build Generator for hardened live environment and CISS Debian Installer*<br>
 **Master Version**: 8.03<br>
-**Build**: V8.03.384.2025.06.03<br>
+**Build**: V8.03.400.2025.06.05<br>
 
 # 2. Resources
 
diff --git a/lib/lib_check_provider.sh b/lib/lib_check_provider.sh
index 513a3c1..4262a7c 100644
--- a/lib/lib_check_provider.sh
+++ b/lib/lib_check_provider.sh
@@ -18,7 +18,7 @@
 check_provider() {
   clear
   cat << 'EOF' >| "${VAR_NOTES}"
-Build: Master V8.03.384.2025.06.03
+Build: Master V8.03.400.2025.06.05
 
 Press 'EXIT' to continue with CISS.debian.live.builder.
 
diff --git a/lib/lib_usage.sh b/lib/lib_usage.sh
index e89da5b..d0488ee 100644
--- a/lib/lib_usage.sh
+++ b/lib/lib_usage.sh
@@ -22,7 +22,7 @@ usage() {
   cat << EOF
 
 $(echo -e "\e[92mCISS.debian.live.builder\e[0m")
-$(echo -e "\e[92mMaster V8.03.384.2025.06.03\e[0m")
+$(echo -e "\e[92mMaster V8.03.400.2025.06.05\e[0m")
 
 $(echo -e "\e[97m(c) Marc S. Weidner, 2018 - 2025\e[0m")
 $(echo -e "\e[97m(p) Centurion Press, 2024 - 2025\e[0m")
diff --git a/scripts/9000-cdi-starter b/scripts/9000-cdi-starter
index c8e73b0..ecf1be5 100644
--- a/scripts/9000-cdi-starter
+++ b/scripts/9000-cdi-starter
@@ -15,7 +15,7 @@ printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "
 # sleep 1
 
 [[ ! -d /root/.cdi/log ]] && mkdir -p /root/.cdi/log
-printf "CISS.debian.installer Master V8.03.384.2025.06.03 is up!" >| /root/.cdi/log/boot_finished_"$(date +"%Y-%m-%d_%H-%M-%S")".log
+printf "CISS.debian.installer Master V8.03.400.2025.06.05 is up!" >| /root/.cdi/log/boot_finished_"$(date +"%Y-%m-%d_%H-%M-%S")".log
 
 if [[ -f /root/git/CISS.debian.installer/ciss_debian_installer.sh ]]; then
   chmod 0700 /root/git/CISS.debian.installer/ciss_debian_installer.sh