V8.13.536.2025.12.04

Signed-off-by: Marc S. Weidner <msw@coresecret.dev>

README.md

@@ -29,21 +29,40 @@ include_toc: true
 **Master Version**: 8.13<br>
 **Build**: V8.13.536.2025.12.04<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
-cloud deployment or unattended installations via the forthcoming `CISS.debian.installer`. Additionally, automated CI workflows 
-based on Gitea Actions are provided, enabling reproducible ISO generation. A generic ISO is automatically built upon significant
+**CISS.debian.live.builder — First of its own.**
+**World-class CIA designed, handcrafted and powered by Centurion Intelligence Consulting Agency.**
+
+This shell wrapper automates the creation of a Debian Trixie 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 cloud
+deployment or unattended installations via the forthcoming `CISS.debian.installer`. Additionally, automated CI workflows based
+on Gitea Actions are provided, enabling reproducible ISO generation. A generic ISO is automatically built upon significant
 changes and made publicly available for download. The latest generic ISO is available at:
 **[PUBLIC CISS.debian.live.ISO](/docs/DL_PUB_ISO.md)**
 
-Check out more:
-* [CenturionNet Services](https://coresecret.eu/cnet/) 
+Beyond a conventional live system, **CISS.debian.live.builder** assembles a **fully encrypted, integrity-protected live medium**
+in a single, deterministic build step: a LUKS2 container backed by `dm-integrity` hosting the SquashFS root filesystem, combined
+with a hardened initramfs chain including a dedicated Dropbear build pipeline for remote LUKS unlock. The resulting ISO ships 
+with a hardened kernel configuration, strict sysctl and network tuning, pre-configured SSH hardening and fail2ban, and a 
+customised `verify-checksums` path providing both ISO-edge verification and runtime attestation of the live root. All components
+are aligned with the `CISS.debian.installer` baseline, ensuring a unified cryptographic and security posture from first boot to 
+an installed system.
+**[MAN_CISS_ISO_BOOT_CHAIN.md](docs/MAN_CISS_ISO_BOOT_CHAIN.md)**
+
+Check out more leading world-class services powered by Centurion Intelligence Consulting Agency:
 * [CenturionDNS Resolver](https://eddns.eu/)
 * [CenturionDNS Blocklist](https://dns.eddns.eu/blocklists/centurion_titanium_ultimate.txt) 
-* [CenturionNet Status](https://uptime.coresecret.eu/) 
 * [CenturionMeet](https://talk.e2ee.li/)
+* [CenturionNet Services](https://coresecret.eu/cnet/)
+* [CenturionNet Status](https://uptime.coresecret.eu/) 
+
+**Contact the author:**
 * [Contact the author](https://coresecret.eu/contact/)
 
+**Legal Disclaimer:**
+* This project is not affiliated with, authorized, maintained, sponsored, or endorsed by [Debian Project](https://www.debian.org/) 
+* [Centurion Imprint](https://coresecret.eu/imprint/)
+* [Centurion Privacy](https://coresecret.eu/privacy/)
+
 ## 1.1. Preliminary Remarks
 
 ### 1.1.1. HSM

lib/lib_clean_up.sh

@@ -95,6 +95,9 @@ clean_up() {
 
   fi
 
+  ### No tracing for security reasons ------------------------------------------------------------------------------------------
+  [[ "${VAR_EARLY_DEBUG}" == "true" ]] && set +x
+
   ### Removes secrets securely.
   # shellcheck disable=SC2312
   find "${VAR_TMP_SECRET}" -xdev -type f -print0 | xargs -0 --no-run-if-empty shred -fzu -n 5 --
@@ -111,17 +114,16 @@ clean_up() {
 
   fi
 
-  ### Securely shred all regular files below ./chroot, then remove empty dirs.
+  ### Delete all files and directories below ./chroot.
   if [[ -d "${VAR_HANDLER_BUILD_DIR}/chroot" ]]; then
 
-    # shellcheck disable=SC2312
-    find "${VAR_HANDLER_BUILD_DIR}/chroot" -xdev -type f -print0 | xargs -0 --no-run-if-empty shred -fzu -n 5 --
-
-    ### Remove empty directories (bottom-up).
-    find "${VAR_HANDLER_BUILD_DIR}/chroot" -depth -xdev -type d -empty -delete
+    rm -rf "${VAR_HANDLER_BUILD_DIR}/chroot"
 
   fi
 
+  ### Turn on tracing again ----------------------------------------------------------------------------------------------------
+  [[ "${VAR_EARLY_DEBUG}" == "true" ]] && set -x
+
   eval "${_old_nullglob}" 2>/dev/null || true
   eval "${_old_dotglob}"  2>/dev/null || true
   eval "${_old_failglob}" 2>/dev/null || true